CN117331173A - Multi-core optical fiber connector and control method for multi-core optical fiber butt joint rotation amount - Google Patents
Multi-core optical fiber connector and control method for multi-core optical fiber butt joint rotation amount Download PDFInfo
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- CN117331173A CN117331173A CN202311471069.8A CN202311471069A CN117331173A CN 117331173 A CN117331173 A CN 117331173A CN 202311471069 A CN202311471069 A CN 202311471069A CN 117331173 A CN117331173 A CN 117331173A
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- 239000013307 optical fiber Substances 0.000 title claims abstract description 180
- 210000001503 joint Anatomy 0.000 title claims abstract description 42
- 238000000034 method Methods 0.000 title claims abstract description 15
- 239000000835 fiber Substances 0.000 claims description 94
- 210000000078 claw Anatomy 0.000 claims description 27
- 230000000670 limiting effect Effects 0.000 claims description 22
- 230000002093 peripheral effect Effects 0.000 claims description 16
- 230000013011 mating Effects 0.000 claims description 13
- 239000013013 elastic material Substances 0.000 claims description 5
- 230000014759 maintenance of location Effects 0.000 claims 2
- 230000005540 biological transmission Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 230000008054 signal transmission Effects 0.000 description 5
- 230000003287 optical effect Effects 0.000 description 4
- 230000004308 accommodation Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000009916 joint effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/36—Mechanical coupling means
- G02B6/38—Mechanical coupling means having fibre to fibre mating means
- G02B6/3807—Dismountable connectors, i.e. comprising plugs
- G02B6/3873—Connectors using guide surfaces for aligning ferrule ends, e.g. tubes, sleeves, V-grooves, rods, pins, balls
- G02B6/3885—Multicore or multichannel optical connectors, i.e. one single ferrule containing more than one fibre, e.g. ribbon type
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/36—Mechanical coupling means
- G02B6/3604—Rotary joints allowing relative rotational movement between opposing fibre or fibre bundle ends
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/36—Mechanical coupling means
- G02B6/38—Mechanical coupling means having fibre to fibre mating means
- G02B6/3807—Dismountable connectors, i.e. comprising plugs
- G02B6/3833—Details of mounting fibres in ferrules; Assembly methods; Manufacture
- G02B6/3834—Means for centering or aligning the light guide within the ferrule
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Coupling Of Light Guides (AREA)
Abstract
The invention relates to the technical field of optical fiber equipment, in particular to a multi-core optical fiber connector and a control method for the butt joint rotation amount of multi-core optical fibers. The multi-core optical fiber connector comprises an elastic clamping seat, an outer frame, a first connecting head and a second connecting head, wherein the first connecting head is used for fixing a first multi-core optical fiber along a preset angle, the second connecting head is used for fixing a second multi-core optical fiber along a preset angle, a through hole is formed in the outer frame, the through hole comprises a first part at two ends and a second part in the middle, the aperture of the first part is larger than that of the second part, one of the first connecting head and the first part is provided with a first sliding groove, the other one of the first connecting head and the first part is provided with a first bulge matched with the first sliding groove, one of the second connecting head and the first part is provided with a second sliding groove, the other one of the second connecting head and the first bulge are matched with the second bulge, the first bulge and the second bulge are overlapped along the axial direction of the through hole, the first multi-core optical fiber and the second multi-core optical fiber are butted at the second part, and the elastic clamping seat is used for elastically clamping and fixing the first connecting head, the second connecting head and the outer frame.
Description
Technical Field
The invention relates to the technical field of optical fiber equipment, in particular to a multi-core optical fiber connector and a control method for the butt joint rotation amount of multi-core optical fibers.
Background
The optical fiber transmission is data and signal transmission by using optical fiber as medium, and has wide transmission frequency band, large communication capacity and low transmission loss. With the continuous development of optical fiber communication technology, multi-core optical fibers have been developed to accommodate the need for high-density and high-efficiency interconnection wiring in high-speed and high-capacity optical fiber communication systems. Multiple cores are present in the cladding region of the multi-core fiber, thereby providing a larger transmission channel. As shown in fig. 1 to 3, the 8-core optical fiber has 8 cores uniformly distributed at 45 ° on the end face of the optical fiber; 4-core optical fibers, wherein 4 fiber cores of the 4-core optical fibers are uniformly distributed at 90 degrees on the end face of the optical fibers; a 7-core optical fiber having 6 cores uniformly distributed at 60 ° on the circumference, and the remaining 1 core being disposed at the center.
In the prior art, the optical fiber connectors are all single-core optical fiber connectors, when the single-core optical fiber connectors are used for connecting single-core optical fibers, as the fiber cores in the single-core optical fibers are arranged at the center of the optical cores, when two single-core optical fibers are in butt joint, only the opposite direction of the two fiber cores is ensured, and the relative rotation angle between the two fiber cores is not required to be considered. However, when the single-core optical fiber connector is used for connecting the multi-core optical fibers, as the two opposite multi-core optical fibers rotate along the central axis of the multi-core optical fibers, the cores which are not positioned in the central positions of the multi-core optical fibers can deviate, each core in the multi-core optical fibers cannot be ensured to be opposite to the corresponding core, and further the loss generated during the butt joint of the multi-core optical fibers is increased, and the practical requirements cannot be met.
Therefore, there is a need to provide a multi-core fiber connector and a method for controlling the amount of butt rotation of multi-core fibers to solve the above-mentioned problems.
Disclosure of Invention
The invention aims to provide a multi-core optical fiber connector and a control method of the butt joint rotation amount of multi-core optical fibers, so that each fiber core between two multi-core optical fibers can be arranged opposite to the other fiber core, and the butt joint loss of the multi-core optical fibers is reduced.
To achieve the purpose, the invention adopts the following technical scheme:
a multi-core fiber connector comprising:
an elastic clamping seat;
the optical fiber module comprises an outer frame, a first connector and a second connector, wherein a first multi-core optical fiber is fixed in the first connector along a preset angle; a second multi-core optical fiber is fixed in the second connector along a preset angle;
the outer frame is internally provided with a through hole, the through hole comprises a first part positioned at two ends and a second part positioned in the middle, the aperture of the first part is larger than that of the second part, any one of the first connecting head and the first part is provided with a first sliding groove, and the other one is provided with a first bulge matched with the first sliding groove; a second sliding groove is formed in any one of the second connector and the other first part, a second protrusion matched with the second connector is arranged on the other first part, and the first protrusion and the second protrusion are overlapped along the axis of the through hole;
the first multi-core optical fiber and the second multi-core optical fiber can be in butt joint in the second part, and the elastic clamping seat is used for elastically clamping and fixing the first connector, the second connector and the outer frame.
As a preferable scheme, a limiting protrusion is arranged on the outer peripheral wall of the first connector, a containing groove is formed in the outer peripheral wall of the outer frame, the containing groove extends inwards along the outer end face of the first portion which is correspondingly arranged, and the containing groove is configured to contain and fix the limiting protrusion.
Preferably, the multi-core optical fiber connector further comprises:
the fixed lantern ring, with the fixed slot has been seted up on the peripheral wall of the first portion that the first connector corresponds the setting, the cooperation groove has been seted up on the spacing arch, the fixed slot with the cooperation groove can constitute jointly and set up the ring channel on the peripheral wall of frame, the fixed lantern ring can the holding be fixed the fixed slot with in the ring channel that the cooperation groove constitutes jointly.
Preferably, the fixing collar is made of elastic materials.
Preferably, the multi-core optical fiber connector further comprises:
and the holding tube is arranged in the second part, and the first multi-core optical fiber and the second multi-core optical fiber can respectively extend into the holding tube along the openings at the two ends of the holding tube and are mutually butted.
Preferably, the first connector is provided with a first butt joint part, the first multi-core optical fiber is accommodated and fixed in the first butt joint part, the first butt joint part is configured to extend into the holding tube, the second connector is provided with a second butt joint part, the second multi-core optical fiber is fixed in the second butt joint part, and the second butt joint part is configured to extend into the holding tube and abut against the first butt joint part.
As a preferred scheme, be provided with first jack catch and second jack catch on the elastic clamping seat, first jack catch with the second jack catch sets up respectively the opposite both ends of elastic clamping seat, accomplish the equipment first connector the second connector and the frame is followed run through the axial setting of through-hole is in first jack catch with between the second jack catch, first jack catch with the second jack catch can with first connector is followed run through the axial of through-hole and frame butt is fixed, the second jack catch can with the second connector is followed run through the axial of through-hole with the frame butt is fixed.
As a preferable scheme, the elastic clamping seat is further provided with a third clamping jaw and a fourth clamping jaw, the third clamping jaw and the fourth clamping jaw are oppositely arranged, the arrangement directions of the third clamping jaw and the fourth clamping jaw are perpendicular to the opposite arrangement directions of the first clamping jaw and the second clamping jaw, and the third clamping jaw and the fourth clamping jaw can be used for fixing the outer frame in a clamping manner from two sides of the outer frame.
As the preferred scheme, first mouthful of dodging has been seted up on the first jack catch, the second has been seted up on the second jack catch and has been dodged the mouth, first dodged the mouth can be for first multicore optic fibre provides the accommodation space, the second dodges the mouth can be for second multicore optic fibre provides the accommodation space.
The control method of the multi-core optical fiber butt joint rotation amount is applied to the multi-core optical fiber connector, wherein the first sliding groove is formed in the peripheral wall of the first connecting head, the first protrusion is formed in the inner cavity wall of the first part matched with the first connecting head, the shortest distance between the upper end face of the first protrusion and the axis of the first multi-core optical fiber is X, and the assembly gap between the first sliding groove and the first protrusion is L 1 The L is 1 The shortest distance between the core axis not positioned at the first multi-core optical fiber axis and the axis of the first multi-core optical fiber is Y, the rotation offset of the core axis not positioned at the first multi-core optical fiber axis relative to the rotation of the axis of the first multi-core optical fiber is L 2 ，Y/X＝L 2 /L 1 The method comprises the following steps:
fixing the first multi-core optical fiber in the first connector according to a preset angle, and fixing the second multi-core optical fiber in the second connector according to a preset angle;
inserting the first connector fixed with the first multi-core optical fiber into the first part correspondingly arranged along the axial direction of the through hole, and inserting the second connector fixed with the second multi-core optical fiber into the first part correspondingly arranged along the axial direction of the through hole;
when the rotation offset L of the fiber core which is not positioned at the axis of the first multi-core fiber relative to the axis of the first multi-core fiber needs to be adjusted 2 When the first protrusion is positioned at the center of the first multi-core optical fiber, the shortest distance X between the upper end surface of the first protrusion and the axis of the first multi-core optical fiber is adjusted;
when the rotation offset L of the fiber core which is not positioned at the axis of the second multi-core fiber relative to the axis of the second multi-core fiber needs to be adjusted 2 When the second protrusion is positioned at the center of the second multi-core optical fiber, the shortest distance X between the upper end surface of the second protrusion and the axis of the second multi-core optical fiber is adjusted;
and the elastic clamping seat is used for elastically clamping and fixing the assembled first connector, second connector and outer frame.
The invention has the beneficial effects that:
according to the multi-core optical fiber connector provided by the invention, through the through holes arranged in the outer frame, the through holes are split into the first parts positioned at two ends and the second parts positioned in the middle, the aperture of the first parts is ensured to be larger than that of the second parts, the two first parts are respectively matched with the first connecting head and the second connecting head, the first sliding groove is formed in any one of the first connecting head and the first parts correspondingly arranged, the first bulge matched with the first sliding groove is arranged in the other one, the rotary positioning of the first connecting head and the corresponding first parts is realized, the second sliding groove is formed in any one of the second connecting head and the second parts correspondingly arranged, the second bulge matched with the second sliding groove is formed in the other one, the rotary positioning of the second connecting head and the corresponding first parts is realized, the first multi-core optical fiber is fixed on the first connecting head according to a preset angle in advance, the second optical fiber is fixed on the second connecting head according to the preset angle, the first multi-core optical fiber and the second multi-core optical fiber are accurately opposite to each other, the high-core optical fiber and the high-core optical fiber can be accurately abutted to each other, and the high-core optical fiber can be guaranteed, and the high-speed signal transmission requirements are met.
The invention also provides a control method of the multi-core optical fiber butting rotation amount, which realizes the accurate butting of the first multi-core optical fiber and the second multi-core optical fiber in the second part according to the preset angle by applying the multi-core optical fiber connector, ensures that each fiber core in the first multi-core optical fiber is opposite to the corresponding fiber core in the second multi-core optical fiber, improves the butting precision between the fiber cores, further reduces the loss generated during the butting of the fiber cores, and meets the high-speed and high-efficiency signal transmission requirement.
Drawings
FIG. 1 is a schematic radial cross-sectional view of an 8-core optical fiber according to a first embodiment of the present invention;
FIG. 2 is a schematic radial cross-sectional view of a 4-core optical fiber according to a first embodiment of the present invention;
FIG. 3 is a schematic radial cross-sectional view of a 7-core optical fiber according to a first embodiment of the present invention;
fig. 4 is a schematic structural diagram of a multi-core optical fiber connector according to a first embodiment of the present invention;
FIG. 5 is a side view of a multi-fiber connector according to a first embodiment of the present invention;
FIG. 6 is a cross-sectional view of a multi-fiber connector according to a first embodiment of the present invention;
fig. 7 is a schematic structural diagram of a first connector, a second connector and a holding tube according to a first embodiment of the present invention;
FIG. 8 is a schematic cross-sectional view of a first connector, a second connector and a retaining tube according to a first embodiment of the present invention;
FIG. 9 is a schematic diagram of an outer frame according to an embodiment of the present invention;
FIG. 10 is a second schematic diagram of an outer frame according to the first embodiment of the present invention;
FIG. 11 is a schematic cross-sectional view of an outer frame according to an embodiment of the present invention;
fig. 12 is a schematic structural diagram of an elastic card holder according to an embodiment of the invention;
FIG. 13 is a partial dimensioning of a multicore fiber connector according to a second embodiment of the present invention;
fig. 14 is a flowchart of a method for controlling the amount of rotation of the multi-core fiber according to the second embodiment of the present invention.
In the figure:
1000. a multi-core fiber connector;
100. a first connector; 110. a limit protrusion; 111. a mating groove; 120. a first chute; 130. a first butt joint part;
200. a second connector; 210. a second chute; 220. a second butt joint part;
300. an outer frame; 310. a first protrusion; 320. a second protrusion; 330. a through hole; 331. a first section; 332. a second section; 3321. a receiving area; 3322. a limit area; 340. a fixing groove; 350. a receiving groove;
400. an elastic clamping seat; 410. a first claw; 411. a first avoidance port; 420. a second claw; 421. a second avoidance port; 430. a third jaw; 440. a fourth jaw;
500. a fixed collar;
600. the tube is held.
Detailed Description
In order to make the technical problems solved, the technical scheme adopted and the technical effects achieved by the invention more clear, the technical scheme of the invention is further described below by a specific embodiment in combination with the attached drawings.
In the description of the present invention, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are orientation or positional relationships based on those shown in the drawings, merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the invention. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.
Example 1
As shown in fig. 1 to 3, the present embodiment provides an 8-core optical fiber, a 4-core optical fiber, and a 7-core optical fiber. Wherein, 8 core optical fibers, 8 fiber cores of which are uniformly distributed at 45 degrees on the end face of the optical fiber; 4-core optical fibers, wherein 4 fiber cores of the 4-core optical fibers are uniformly distributed at 90 degrees on the end face of the optical fibers; a 7-core optical fiber having 6 cores uniformly distributed at 60 ° on the circumference, and the remaining 1 core being disposed at the center.
In the prior art, the optical fiber connectors are all single-core optical fiber connectors, when the single-core optical fiber connectors are used for connecting single-core optical fibers, as the fiber cores in the single-core optical fibers are arranged at the center of the optical cores, when two single-core optical fibers are in butt joint, only the opposite direction of the two fiber cores is ensured, and the relative rotation angle between the two fiber cores is not required to be considered. However, when the single-core optical fiber connector is used for connecting the multi-core optical fibers, as the two opposite multi-core optical fibers rotate along the central axis of the multi-core optical fibers, the cores which are not positioned in the central positions of the multi-core optical fibers can deviate, each core in the multi-core optical fibers cannot be ensured to be opposite to the corresponding core, and further the loss generated during the butt joint of the multi-core optical fibers is increased, and the practical requirements cannot be met.
In order to solve the above-mentioned problems, as shown in fig. 4 to 13, the present embodiment provides a multi-core optical fiber connector 1000. The multi-core optical fiber connector 1000 comprises an elastic clamping seat 400, an outer frame 300, a first connector 100 and a second connector 200, wherein a first multi-core optical fiber is fixed in the first connector 100 along a preset angle; a second multi-core optical fiber is fixed in the second connector 200 along a preset angle; the outer frame 300 is internally provided with a through hole 330, the through hole 330 comprises a first part 331 positioned at two ends and a second part 332 positioned in the middle, the aperture of the first part 331 is larger than that of the second part 332, any one of the first connector 100 and the first part 331 is provided with a first sliding groove 120, and the other one is provided with a first protrusion 310 matched with the first sliding groove; either one of the second connector 200 and the other first portion 331 is provided with a second chute 210, the other is provided with a second protrusion 320 matched with the second chute, and the first protrusion 310 and the second protrusion 320 are overlapped along the axis of the through hole 330; the first multi-core optical fiber and the second multi-core optical fiber can be butted in the second portion 332, and the elastic clamping seat 400 is used for elastically clamping and fixing the first connector 100, the second connector 200 and the outer frame 300.
The multicore fiber connector 1000 is provided with a through hole 330 in an outer frame 300, and the through hole 330 is split into a first portion 331 at two ends and a second portion 332 in the middle, so that the aperture of the first portion 331 is larger than that of the second portion 332, the two first portions 331 are respectively matched with the first connector 100 and the second connector 200, a first chute 120 is formed in any one of the first connector 100 and the first portion 331 correspondingly arranged, a first protrusion 310 matched with the first chute 120 is arranged in the other one, the rotation positioning of the first connector 100 and the corresponding first portion 331 is realized, a second chute 210 is formed in any one of the second connector 200 and the second portion 332 correspondingly arranged, the other is provided with a second bulge 320 matched with the second chute 210, so that the rotation positioning of the second connector 200 and the corresponding first part 331 is realized, the first multi-core optical fiber is fixed on the first connector 100 according to a preset angle in advance and the second multi-core optical fiber is fixed on the second connector 200 according to the preset angle, the accurate butt joint of the first multi-core optical fiber and the second multi-core optical fiber in the second part 332 according to the preset angle is realized, each fiber core in the first multi-core optical fiber is ensured to be opposite to the corresponding fiber core in the second multi-core optical fiber, the butt joint precision between the fiber cores is improved, the loss generated during the butt joint of the fiber cores is further reduced, and the high-speed and high-efficiency signal transmission requirements are met.
It should be noted that, in the present embodiment, the first connector 100 is provided with a first chute 120, and a first protrusion 310 is provided on an inner cavity wall of a first portion 331 disposed corresponding to the first connector 100; the second connector 200 is provided with a second chute 210, and a first protrusion 310 is provided on an inner cavity wall of a first portion 331 disposed corresponding to the second connector 200. In other embodiments, the first protrusion 310 may be disposed on the first connector 100, the first chute 120 may be disposed on the inner cavity wall of the first portion 331 disposed corresponding to the first connector 100, or the second protrusion 320 may be disposed on the second connector 200, and the second chute 210 may be disposed on the inner cavity wall of the first portion 331 disposed corresponding to the second connector 200.
In this embodiment, the axis of the first connector 100 is provided with a through hole, the first multicore fiber is fixed to the first connector 100 by being inserted through the through hole at the axis of the first connector 100, the axis of the second connector 200 is provided with a through hole, and the second multicore fiber is fixed to the second connector 200 by being inserted through the through hole at the axis of the second connector 200. In addition, the specific value of the preset angle between the first connector 100 and the first multi-core optical fiber and the specific value of the preset angle between the second connector 200 and the second multi-core optical fiber can be adaptively adjusted according to the actual requirement, and only the same specific value of the preset angle between the first connector 100 and the first multi-core optical fiber and the specific value of the preset angle between the second multi-core optical fiber are required to be ensured, which is not limited in this embodiment.
Further, the outer peripheral wall of the first connector 100 is provided with a limiting protrusion 110, the outer peripheral wall of the outer frame 300 is provided with a receiving groove 350, the receiving groove 350 extends inward along the outer end surface of the first portion 331 correspondingly arranged, and the receiving groove 350 is configured to receive the fixing limiting protrusion 110. By additionally providing the limiting protrusion 110 on the outer peripheral wall of the first connector 100 and providing the accommodating groove 350 for accommodating the limiting protrusion 110 on the outer peripheral wall of the outer frame 300, the rotation limiting effect of the first connector 100 relative to the first portion 331 can be further improved. In this embodiment, when the limiting protrusion 110 is accommodated and fixed in the accommodating groove 350, the outer peripheral surface of the limiting protrusion 110 is flush with the outer peripheral surface of the outer frame 300, so as to improve the overall aesthetic property of the multi-core optical fiber connector 1000.
Preferably, the multicore fiber connector 1000 further includes a fixing collar 500, wherein the fixing collar 500 is provided with a fixing groove 340 on the outer peripheral wall of the first portion 331 disposed corresponding to the first connector 100, the limit protrusion 110 is provided with a mating groove 111, the fixing groove 340 and the mating groove 111 can form an annular groove disposed on the outer peripheral wall of the outer frame 300 together, and the fixing collar 500 can be accommodated and fixed in the annular groove formed by the fixing groove 340 and the mating groove 111 together. Through setting up fixed lantern ring 500 to set up fixed slot 340 and set up mating groove 111 on spacing protruding 110 on the periphery wall of first portion 331, when spacing protruding 110 holding is in holding groove 350, fixed slot 340 and mating groove 111 can constitute the ring channel that sets up on frame 300 periphery wall jointly, fix fixed lantern ring 500 in the ring channel, can further fix spacing protruding 110 and frame 300, further improve the fixed effect of first connector 100 and frame 300.
In this embodiment, the fixing collar 500 is made of an elastic material. By adopting the elastic material to make the fixing collar 500, and the aperture of the central hole of the fixing collar 500 is slightly smaller than the diameter of the groove bottom of the annular groove, the fixing collar 500 can tightly abut against the groove bottom of the annular groove when the fixing collar 500 is fixed in the annular groove by utilizing the self elasticity of the fixing collar 500, so that the fixing effect of the first connector 100 and the outer frame 300 is further ensured.
Specifically, the fixing collar 500 is made of a rubber material, which has good elasticity and wear resistance, stable chemical properties and long service life. In other embodiments, the fixing collar 500 may be made of other elastic materials, and the embodiment is not limited in particular.
In the present embodiment, the limiting protrusion 110 is not disposed on the second connector 200, so the accommodating groove 350, the fixing groove 340, and the fixing collar 500 are not disposed at the first portion 331 disposed corresponding to the second connector 200, and in other embodiments, the specific structure of the second connector 200 may be the same as that of the first connector 100, and the present embodiment is not limited thereto.
In this embodiment, since the fixing collar 500 is additionally disposed between the first connector 100 and the outer frame 300, in order to facilitate the assembly of the multi-core optical fiber connector 1000, the first connector 100, the outer frame 300 and the fixing collar 500 are preassembled, and after the first connector 100, the outer frame 300 and the fixing collar 500 are preassembled, the second connector 200 and the outer frame 300 are assembled, and finally the assembled first connector 100, second connector 200, outer frame 300 and fixing collar 500 are elastically clamped in the elastic clamping seat 400.
Preferably, the multi-core optical fiber connector 1000 further includes a holding tube 600, wherein the holding tube 600 is disposed in the second portion 332, and the first multi-core optical fiber and the second multi-core optical fiber can extend into the holding tube 600 along both end openings of the holding tube 600, respectively, and are butted against each other. By providing the holding tube 600 in the second portion 332 of the through-hole 330, the first multi-core optical fiber and the second multi-core optical fiber are butted in the holding tube 600, and the butt-joint protection of the first multi-core optical fiber and the second multi-core optical fiber is improved.
Further, the first connector 100 is provided with a first butt joint 130, the first multicore fiber is accommodated and fixed in the first butt joint 130, the first butt joint 130 is configured to extend into the holding tube 600, the second connector 200 is provided with a second butt joint 220, the second multicore fiber is fixed in the second butt joint 220, and the second butt joint 220 is configured to extend into the holding tube 600 and abut against the first butt joint 130. By providing the first butt joint portion 130 on the first connector 100 and fixing the first multi-core optical fiber in the first butt joint portion 130, and providing the second butt joint portion 220 in the second connector 200 and fixing the second multi-core optical fiber in the second butt joint portion 220 according to a predetermined angle, the first butt joint portion 130 and the second butt joint portion 220 extend into the holding tube 600 from both ends of the holding tube 600, respectively, and the first butt joint portion 130 abuts against the second butt joint portion 220, so as to ensure the butt joint effect of the first multi-core optical fiber and the second multi-core optical fiber.
In addition, as shown in fig. 11, in the present embodiment, the second portion 332 includes a coaxially communicating accommodating area 3321 and a limiting area 3322, wherein the accommodating area 3321 is located at one end of the second portion 332 near the first portion 331 abutting against the first connector 100, the aperture of the accommodating area 3321 is larger than the aperture of the limiting area 3322, the diameter of the holding tube 600 is larger than the diameter of the limiting area 3322 and the diameter of the holding tube 600 is smaller than the diameter of the accommodating area 3321, the aperture of the limiting area 3322 is larger than the diameter of the second abutting portion 220 on the second connector 200, the second abutting portion 220 can penetrate through the limiting area 3322 and then extend into the holding tube 600, and the first abutting portion 130 can directly extend into the holding tube 600. By arranging the second portion 332 as the accommodating area 3321 and the limiting area 3322 which are coaxially connected, the aperture of the accommodating area 3321 is ensured to be larger than that of the limiting area 3322, so that the holding tube 600 can be limited and fixed in the accommodating area 3321 on the basis that the first multi-core optical fiber and the second multi-core optical fiber can be normally abutted in the holding tube 600, and the structural compactness of the multi-core optical fiber connector 1000 is improved.
Specifically, when the first connector 100, the outer frame 300 and the fixing collar 500 are preassembled, the holding tube 600 is first placed in the accommodating area 3321 of the second portion 332, then the first connector 100 is slidably abutted against the corresponding first portion 331, and finally the fixing collar 500 is sleeved and fixed in the annular groove formed by the fixing groove 340 and the matching groove 111, at this time, one end of the holding tube 600 close to the first connector 100 abuts against the first connector 100, and one end of the holding tube 600 far from the first connector 100 abuts against the limiting area 3322, so as to realize accommodating and fixing of the holding tube 600 in the second portion 332.
The specific structure of the elastic holder 400 will be described with reference to fig. 12. As shown in fig. 13, a first claw 410 and a second claw 420 are disposed on the elastic clamping seat 400, the first claw 410 and the second claw 420 are disposed at opposite ends of the elastic clamping seat 400, the first connector 100, the second connector 200 and the outer frame 300 which are assembled are disposed between the first claw 410 and the second claw 420 along the axial direction of the through hole 330, the first claw 410 and the second claw 420 can fix the first connector 100 and the outer frame 300 in an abutting manner along the axial direction of the through hole 330, and the second claw 420 can fix the second connector 200 and the outer frame 300 in an abutting manner along the axial direction of the through hole 330. By arranging the first claw 410 and the second claw 420, the first connector 100 and the second connector 200 are respectively abutted and fixed with the outer frame 300, and the fixing device is simple in structure and good in fixing effect.
Further, the first claw 410 is provided with a first avoiding opening 411, the second claw 420 is provided with a second avoiding opening 421, the first avoiding opening 411 can provide a containing space for the first multi-core optical fiber, and the second avoiding opening 421 can provide a containing space for the second multi-core optical fiber. Through seting up first dodging the mouth 411 on first jack catch 410 and seting up the second dodging the mouth 421 on second jack catch 420, for first multicore optic fibre and second multicore optic fibre provide accommodation, avoid first multicore optic fibre to interfere with first jack catch 410 and second multicore optic fibre to interfere with second jack catch 420, ensure the normal centre gripping operation of first jack catch 410 and second jack catch 420.
In addition, the elastic clamping seat 400 is further provided with a third clamping jaw 430 and a fourth clamping jaw 440, the third clamping jaw 430 and the fourth clamping jaw 440 are arranged opposite to each other, the arrangement direction of the third clamping jaw 430 and the fourth clamping jaw 440 is perpendicular to the arrangement direction of the first clamping jaw 410 and the second clamping jaw 420, and the third clamping jaw 430 and the fourth clamping jaw 440 can clamp and fix the outer frame 300 from two sides of the outer frame 300. The third clamping jaw 430 and the fourth clamping jaw 440 are arranged to clamp and fix the outer frame 300 from two sides of the outer frame 300, so that the elastic clamping and fixing effect of the elastic clamping seat 400 on the assembled first connector 100, second connector 200 and outer frame 300 is further improved.
Example two
As shown in fig. 13 and 14, the present embodiment provides a method for controlling the butting rotation amount of the multicore fibers, by applying the multicore fiber connector 1000 in the first embodiment, wherein the shortest distance between the upper end surface of the first protrusion 310 and the axis of the first multicore fiber is X, and the assembly gap between the first chute 120 and the first protrusion 310 is L 1 ，L 1 The shortest distance between the center of the fiber core which is not positioned at the center of the first multi-core fiber and the center of the first multi-core fiber is less than or equal to 0.05mm, Y, and the rotation offset of the center of the fiber core which is not positioned at the center of the first multi-core fiber relative to the center of the first multi-core fiber is L 2 ，Y/X＝L 2 /L 1 The method comprises the following steps:
1) Fixing the first multi-core optical fiber in the first connector 100 according to a preset angle, and fixing the second multi-core optical fiber in the second connector 200 according to a preset angle;
2) Inserting the first connector 100 to which the first multicore fiber is fixed into the corresponding first portion 331 along the axial direction of the through-hole 330, and inserting the second connector 200 to which the second multicore fiber is fixed into the corresponding first portion 331 along the axial direction of the through-hole 330;
3) When the rotation offset L of the fiber core which is not positioned at the axis of the first multi-core fiber relative to the axis of the first multi-core fiber needs to be adjusted 2 When the first protrusion 310 is located at the shortest distance X from the upper end surface to the axis of the first multi-core fiber;
4 when the rotation offset L of the fiber core which is not positioned at the axis of the second multi-core fiber relative to the axis of the second multi-core fiber needs to be adjusted 2 When the second protrusion 320 is located at the shortest distance X from the upper end surface of the second multi-core fiber;
5) The assembled first connector 100, second connector 200 and outer frame 300 are elastically clamped and fixed by using the elastic clamping seat 400.
By applying the multi-core optical fiber connector 1000, the control method of the multi-core optical fiber butting rotation amount realizes the accurate butting of the first multi-core optical fiber and the second multi-core optical fiber in the second part 332 according to the preset angle, ensures that each fiber core in the first multi-core optical fiber is opposite to the corresponding fiber core in the second multi-core optical fiber, improves the butting precision between the fiber cores, further reduces the loss generated during the butting of the fiber cores, and meets the high-speed and high-efficiency signal transmission requirements.
Specifically, when it is necessary to adjust the rotational offset L by which the core not located at the axial center of the first multi-core fiber rotates with respect to the axial center of the first multi-core fiber 2 When according to the formula Y/x=l 2 /L 1 Due to the fitting clearance L between the first runner 120 and the first protrusion 310 1 And the shortest distance Y between the core axis not positioned at the axis of the first multi-core optical fiber and the axis of the first multi-core optical fiber is a known value, for example, the distance Y between the core axis not positioned at the axis of the 4-core optical fiber and the whole axis thereof is 30um, the distance Y between the core axis positioned at the axis of the 8-core optical fiber and the whole axis thereof is 40um, and the upper end face of the first protrusion 310 is adjusted to be away from the axis of the first multi-core optical fiberThe shortest distance X is further used for proportionally adjusting the rotation offset L of the fiber core which is not positioned at the axis of the first multi-core optical fiber relative to the axis of the first multi-core optical fiber 2 Is effective in (1).
During the actual operation, the assembly gap L between the first chute 120 and the first protrusion 310 1 The rotation offset of the fiber core axis which is not positioned at the axis in the multi-core optical fiber is less than or equal to 0.05mm and can be within 1um, so that the transmission requirement of optical signals is further ensured.
Specifically, the value of the shortest distance X of the upper end surface of the first protrusion 310 from the axis of the first multicore fiber may be changed by cutting the first protrusion 310 and the second protrusion 320 or cutting the first chute 120 or the second chute 210 or filling the spacer.
It is to be understood that the above examples of the present invention are provided for clarity of illustration only and are not limiting of the embodiments of the present invention. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the invention are desired to be protected by the following claims.
Claims (10)
1. A multi-core fiber connector, comprising:
an elastic clamping seat (400);
the optical fiber connector comprises an outer frame (300), a first connector (100) and a second connector (200), wherein a first multi-core optical fiber is fixed in the first connector (100) along a preset angle; a second multi-core optical fiber is fixed in the second connector (200) along a preset angle;
a through hole (330) is formed in the outer frame (300), the through hole (330) comprises a first part (331) at two ends and a second part (332) in the middle, the aperture of the first part (331) is larger than that of the second part (332), any one of the first connector (100) and the first part (331) is provided with a first chute (120), and the other one is provided with a first protrusion (310) matched with the first chute; a second sliding groove (210) is formed in any one of the second connector (200) and the other first part (331), a second protrusion (320) matched with the second connector is formed in the other first part, and the first protrusion (310) and the second protrusion (320) are overlapped along the axis of the through hole (330);
the first multi-core optical fiber and the second multi-core optical fiber can be in butt joint in the second part (332), and the elastic clamping seat (400) is used for elastically clamping and fixing the first connector (100), the second connector (200) and the outer frame (300).
2. The multi-core optical fiber connector according to claim 1, wherein a limiting protrusion (110) is provided on an outer peripheral wall of the first connector (100), a receiving groove (350) is provided on an outer peripheral wall of the outer frame (300), the receiving groove (350) extends inward along an outer end surface of the first portion (331) correspondingly provided, and the receiving groove (350) is configured to receive and fix the limiting protrusion (110).
3. The multi-core fiber connector of claim 2, wherein the multi-core fiber connector further comprises:
fixed lantern ring (500), with set up corresponding with first connector (100) fixed slot (340) have been seted up on the periphery wall of first portion (331), spacing protruding (110) are last to have seted up cooperation groove (111), fixed slot (340) with cooperation groove (111) can constitute jointly and set up the ring channel on the periphery wall of frame (300), fixed lantern ring (500) can the holding be fixed in fixed slot (340) with in the ring channel that cooperation groove (111) constitutes jointly.
4. A multi-core optical fiber connector according to claim 3, wherein the fixing collar (500) is made of an elastic material.
5. The multi-core fiber connector of claim 1, wherein the multi-core fiber connector further comprises:
and a holding tube (600), wherein the holding tube (600) is arranged in the second part (332), and the first multi-core optical fiber and the second multi-core optical fiber can respectively extend into the holding tube (600) along two end openings of the holding tube (600) and are butted with each other.
6. The multi-core fiber connector of claim 5, wherein a first mating portion (130) is provided on the first connector head (100), the first multi-core fiber being received and secured in the first mating portion (130), the first mating portion (130) being configured to extend into the retention tube (600), a second mating portion (220) is provided on the second connector head (200), the second multi-core fiber being secured in the second mating portion (220), the second mating portion (220) being configured to extend into the retention tube (600) and to abut against the first mating portion (130).
7. The multi-core fiber connector according to claim 1, wherein the elastic clamping seat (400) is provided with a first clamping jaw (410) and a second clamping jaw (420), the first clamping jaw (410) and the second clamping jaw (420) are respectively arranged at two opposite ends of the elastic clamping seat (400), the assembled first connecting head (100), second connecting head (200) and outer frame (300) are arranged between the first clamping jaw (410) and the second clamping jaw (420) along the axial direction of the through hole (330), the first clamping jaw (410) and the second clamping jaw (420) can enable the first connecting head (100) to be in butt joint and fixed with the outer frame (300) along the axial direction of the through hole (330), and the second clamping jaw (420) can enable the second connecting head (200) to be in butt joint and fixed with the outer frame (300) along the axial direction of the through hole (330).
8. The multi-core fiber connector according to claim 7, wherein a third claw (430) and a fourth claw (440) are further provided on the elastic clamping base (400), the third claw (430) and the fourth claw (440) are disposed opposite to each other, and a direction in which the third claw (430) and the fourth claw (440) are disposed is perpendicular to a direction in which the first claw (410) and the second claw (420) are disposed opposite to each other, and the third claw (430) and the fourth claw (440) are capable of clamping and fixing the outer frame (300) from both sides of the outer frame (300).
9. The multi-core optical fiber connector according to claim 7, wherein the first claw (410) is provided with a first avoiding opening (411), the second claw (420) is provided with a second avoiding opening (421), the first avoiding opening (411) can provide a containing space for the first multi-core optical fiber, and the second avoiding opening (421) can provide a containing space for the second multi-core optical fiber.
10. The method for controlling the butt-joint rotation amount of the multicore fibers according to any one of claims 1 to 9, wherein the first sliding groove (120) is formed in the outer peripheral wall of the first connector (100), the first protrusion (310) is formed in the inner cavity wall of the first portion (331) which is engaged with the first connector (100), the shortest distance between the upper end surface of the first protrusion (310) and the axial center of the first multicore fiber is X, and the fitting gap between the first sliding groove (120) and the first protrusion (310) is L 1 The L is 1 The shortest distance between the core axis not positioned at the first multi-core optical fiber axis and the axis of the first multi-core optical fiber is Y, the rotation offset of the core axis not positioned at the first multi-core optical fiber axis relative to the rotation of the axis of the first multi-core optical fiber is L 2 ，Y/X＝L 2 /L 1 The method comprises the following steps:
fixing the first multi-core optical fiber in the first connector (100) according to a preset angle, and fixing the second multi-core optical fiber in the second connector (200) according to a preset angle;
inserting the first connector (100) to which the first multicore fiber is fixed into the first portion (331) provided correspondingly in the axial direction of the through-hole (330), and inserting the second connector (200) to which the second multicore fiber is fixed into the first portion (331) provided correspondingly in the axial direction of the through-hole (330);
when the rotation offset L of the fiber core which is not positioned at the axis of the first multi-core fiber relative to the axis of the first multi-core fiber needs to be adjusted 2 When the first multi-core optical fiber is in a first state, the shortest distance X between the upper end face of the first protrusion (310) and the axis of the first multi-core optical fiber is adjusted;
when the rotation offset L of the fiber core which is not positioned at the axis of the second multi-core fiber relative to the axis of the second multi-core fiber needs to be adjusted 2 When the second multi-core optical fiber is in a first state, the shortest distance X between the upper end face of the second protrusion (320) and the axis of the second multi-core optical fiber is adjusted;
the first connector (100), the second connector (200) and the outer frame (300) which are assembled are elastically clamped and fixed by the elastic clamping seat (400).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311471069.8A CN117331173A (en) | 2023-11-07 | 2023-11-07 | Multi-core optical fiber connector and control method for multi-core optical fiber butt joint rotation amount |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311471069.8A CN117331173A (en) | 2023-11-07 | 2023-11-07 | Multi-core optical fiber connector and control method for multi-core optical fiber butt joint rotation amount |
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| Publication Number | Publication Date |
|---|---|
| CN117331173A true CN117331173A (en) | 2024-01-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311471069.8A Pending CN117331173A (en) | 2023-11-07 | 2023-11-07 | Multi-core optical fiber connector and control method for multi-core optical fiber butt joint rotation amount |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117331173A (en) |
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2023
- 2023-11-07 CN CN202311471069.8A patent/CN117331173A/en active Pending
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