CN116903242A - Optical fiber preparation device - Google Patents
Optical fiber preparation device Download PDFInfo
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- CN116903242A CN116903242A CN202310979803.5A CN202310979803A CN116903242A CN 116903242 A CN116903242 A CN 116903242A CN 202310979803 A CN202310979803 A CN 202310979803A CN 116903242 A CN116903242 A CN 116903242A
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- shell
- side wall
- optical fiber
- laser
- linear motor
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
- C03B37/01—Manufacture of glass fibres or filaments
- C03B37/02—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor
- C03B37/025—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor from reheated softened tubes, rods, fibres or filaments, e.g. drawing fibres from preforms
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- 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
- G02B6/02—Optical fibres with cladding with or without a coating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
- B08B15/02—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area using chambers or hoods covering the area
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- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Manufacturing & Machinery (AREA)
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- Optics & Photonics (AREA)
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Abstract
本申请提供一种光纤制备装置，包括外壳、激光器、透镜组件、送料组件、聚焦组件以及提拉组件，激光器、透镜组件、送料组件、聚焦组件以及提拉组件均组装于外壳内，且在外壳的中轴线方向上自下向上依次设置；其中，提拉组件夹紧光纤，使光纤穿过聚焦组件向下延伸，被固定至送料组件的顶部，激光器发出的激光，经过透镜组件后输出环形激光，该环形激光经过聚焦组件后，被聚焦至送料组件的顶部形成加热区以加热光纤。结构紧凑，占用空间小，且被收纳于外壳内，可以方便的放置在密封仓中进行有毒气体处理或气体环境控制，使用范围广。
The present application provides an optical fiber preparation device, which includes a housing, a laser, a lens component, a feeding component, a focusing component, and a pulling component. The laser, lens component, feeding component, focusing component, and pulling component are all assembled in the housing, and in the housing They are arranged sequentially from bottom to top in the direction of the central axis; among them, the lifting component clamps the optical fiber so that the optical fiber extends downward through the focusing component and is fixed to the top of the feeding component. The laser emitted by the laser outputs a ring laser after passing through the lens component. , after the ring laser passes through the focusing component, it is focused to the top of the feeding component to form a heating zone to heat the optical fiber. It has a compact structure, takes up little space, and is stored in the casing. It can be conveniently placed in a sealed warehouse for toxic gas treatment or gas environment control, and has a wide range of uses.
Description
Technical Field
The application relates to the technical field of optical fiber preparation, in particular to an optical fiber preparation device.
Background
The single crystal optical fiber is a single crystal with optical fiber form, has the advantages of physical, chemical and optical properties of a bulk crystal material, and has the advantages of high optical fiber heat dissipation efficiency and capability of realizing long-distance total reflection waveguide. Therefore, the single crystal optical fiber greatly widens the application range of the traditional optical crystal material, has wide application in the aspects of high-power laser, mid-infrared laser, high-energy ray detection, high-temperature sensing and the like, and particularly has great application prospect in ultra-high temperature (more than or equal to 1400 ℃) sensing for an aeroengine. The preparation method of the single crystal optical fiber includes a guided mode method, a micro-downdraw method, a laser heating susceptor method (Laser heated pedestal growth, LHPG), and the like. In the related art, the structure of the laser heating base method occupies a large space, and for certain special optical fiber preparation conditions, such as toxic gas generated in the preparation process, or vacuum, rare gas environment and the like need to be controlled, the device is difficult to ventilate or airtight, and the application prospect is limited.
Disclosure of Invention
The application provides an optical fiber preparation device which is compact in structure and small in occupied space.
The present application provides an optical fiber preparation apparatus, comprising: the laser, the lens component, the feeding component, the focusing component and the lifting component are assembled in the shell and are sequentially arranged from bottom to top in the central axis direction of the shell; the optical fiber is clamped by the lifting assembly, extends downwards through the focusing assembly, is fixed to the top of the feeding assembly, and outputs annular laser after passing through the lens assembly, and the annular laser is focused to the top of the feeding assembly to form a heating zone so as to heat the optical fiber after passing through the focusing assembly.
Optionally, the lens assembly includes a pair of conical lenses disposed up and down, and assembled on an inner sidewall of the housing; the pair of cone lenses and the laser are coaxially arranged, the incidence surface of the cone lens positioned below of the pair of cone lenses is arranged towards the laser, the emergent surface of the cone lens positioned above is arranged towards the focusing assembly, and the incidence surface of the cone lens positioned below is smaller than the emergent surface of the cone lens positioned above and is a plane; and laser emitted by the laser passes through the pair of conical lenses to form the annular laser.
Optionally, the optical fiber preparation device further comprises a pair of lens holders; the pair of lens brackets are fixed on the inner side wall of the shell through fasteners, and the pair of cone lenses are respectively fixed on the inner side wall of the shell through the pair of lens brackets.
Optionally, the pair of lens holders are movably assembled on the inner side wall of the housing, the pair of lens holders move relative to the inner side wall of the housing in the central axis direction of the housing, and the pair of conical lenses move relative to the inner side wall of the housing in the central axis direction of the housing through the pair of lens holders.
Optionally, the focusing assembly includes a focusing mirror assembled on the inner side wall of the housing and located above the feeding assembly; the refraction surface of the focusing reflector is a cambered surface, the cambered surface is arranged towards the emergent surface of the lens assembly, and the cambered surface is recessed towards one side far away from the lens assembly in the central axis direction of the shell; and the ring laser is focused to the top of the feeding component after passing through the cambered surface of the focusing reflector.
Optionally, the focusing mirror is provided with a through hole penetrating up and down, and the optical fiber extends downwards to the top of the feeding component through the through hole.
Optionally, the through hole is located in a middle area of the focusing reflector, and is coaxially arranged with the feeding component.
Optionally, the aperture of the through hole is larger than the diameter of the optical fiber.
Optionally, the size range of the aperture of the through hole larger than the diameter of the optical fiber is 0.02 mm-0.04 mm.
Optionally, the optical fiber preparation device further comprises a focusing mirror bracket; the focusing reflector bracket is fixed on the inner side wall of the shell through a fastener, and the focusing reflector is fixed on the inner side wall of the shell through the focusing reflector bracket.
Optionally, the focusing mirror support is movably assembled on the inner side wall of the housing, the focusing mirror support moves relative to the inner side wall of the housing in the direction of the central axis of the housing, and the focusing mirror moves relative to the inner side wall of the housing in the direction of the central axis of the housing through the focusing mirror support.
Optionally, the feeding assembly comprises a linear motor and a feeding piece connected with the linear motor, and is assembled on the inner side wall of the shell; the feeding piece is assembled at the top of the linear motor, and the optical fiber is arranged at the top of the feeding piece.
Optionally, the optical fiber preparation device further comprises a linear motor bracket; the linear motor support is fixed on the inner side wall of the shell through a fastener, and the linear motor is fixed on the inner side wall of the shell through the linear motor support.
Optionally, the linear motor support is movably assembled on the inner side wall of the shell, the linear motor support moves relative to the inner side wall of the shell in the direction of the central axis of the shell, and the linear motor moves relative to the inner side wall of the shell in the direction of the central axis of the shell through the linear motor support.
Optionally, the linear electric motor support is platelike structure, the linear electric motor support is followed the axis direction of shell extends and sets up, and thickness is no more than 2mm.
Optionally, the feeding assembly further comprises a motor adjusting bracket, and the motor adjusting bracket is assembled on the peripheral side of the linear motor and is connected with the linear motor bracket; the motor adjusting bracket drives the linear motor to move relative to the inner side wall of the shell in the direction of the central axis of the shell; or the motor adjusting bracket drives the linear motor to deflect relative to the central axis direction of the shell.
Optionally, the lifting assembly includes a rotating motor assembled on an inner sidewall of the housing; the rotating motor comprises a driving wheel and a driven wheel connected with the driving wheel, the optical fiber is clamped between the driving wheel and the driven wheel, and when the driving wheel rotates, the driven wheel is driven to rotate, so that the optical fiber is pulled.
Optionally, the optical fiber preparation device further comprises a gear bracket; the gear support is fixed on the inner side wall of the shell through a fastener, and the driving wheel and the driven wheel of the rotating motor are fixed on the inner side wall of the shell through the gear support.
Optionally, the gear support is movably assembled in the inside wall of shell, the gear support is relative the inside wall of shell is in the axis direction of shell is removed, the action wheel of rotating electrical machines with from the driving wheel through this gear support relative the inside wall of shell is in the axis direction of shell.
Optionally, the optical fiber preparation device further comprises an optical base, and the laser is assembled on the optical base; the optical base is fixed to the bottom wall of the housing by a fastener, and the laser is fixed to the bottom wall of the housing by the optical base.
Optionally, the optical base is movably assembled to the bottom wall of the housing, the optical base moves in a first direction and a second direction of a horizontal plane relative to the bottom wall of the housing, and the laser moves in the first direction and the second direction relative to the bottom wall of the housing through the optical base; wherein the first direction and the second direction are arranged in an intersecting manner.
According to the optical fiber preparation device, the laser, the lens assembly, the feeding assembly, the focusing assembly and the lifting assembly are sequentially arranged in the central axis direction of the shell from bottom to top, the optical fiber is clamped by the lifting assembly, the optical fiber extends downwards through the focusing assembly and is fixed to the top of the feeding assembly, laser emitted by the laser outputs annular laser after passing through the lens assembly, and the annular laser is focused to the top of the feeding assembly to form a heating zone after passing through the focusing assembly so as to heat the optical fiber. Compact structure, occupation space is little, and is accomodate in the shell, can be convenient place in sealed storehouse carry out poisonous gas treatment or gaseous environmental control, application range is wide.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application as claimed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application.
FIG. 1 is a schematic view showing the structure of an embodiment of an optical fiber preparing apparatus of the present application.
Fig. 2 is a schematic diagram showing a structure of the optical fiber preparing apparatus a shown in fig. 1.
Detailed Description
Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the application. Rather, they are merely examples of apparatus and methods consistent with aspects of the application as detailed in the accompanying claims.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this application belongs. The terms "first," "second," and the like in the description and in the claims, are not used for any order, quantity, or importance, but are used for distinguishing between different elements. Likewise, the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. "plurality" or "plurality" means two or more. Unless otherwise indicated, the terms "front," "rear," "lower," and/or "upper" and the like are merely for convenience of description and are not limited to one location or one spatial orientation. The word "comprising" or "comprises", and the like, means that elements or items appearing before "comprising" or "comprising" are encompassed by the element or item recited after "comprising" or "comprising" and equivalents thereof, and that other elements or items are not excluded. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this specification and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any or all possible combinations of one or more of the associated listed items.
The present application provides an optical fiber preparation apparatus, comprising: the laser, the lens component, the feeding component, the focusing component and the lifting component are assembled in the shell and are sequentially arranged from bottom to top in the central axis direction of the shell; the optical fiber is clamped by the lifting assembly, extends downwards through the focusing assembly, is fixed to the top of the feeding assembly, emits laser through the lens assembly, outputs annular laser, and is focused to the top of the feeding assembly to form a heating area to heat the optical fiber after passing through the focusing assembly.
According to the optical fiber preparation device, the laser, the lens assembly, the feeding assembly, the focusing assembly and the lifting assembly are sequentially arranged in the central axis direction of the shell from bottom to top, the optical fiber is clamped by the lifting assembly, the optical fiber extends downwards through the focusing assembly and is fixed to the top of the feeding assembly, laser emitted by the laser outputs annular laser after passing through the lens assembly, and the annular laser is focused to the top of the feeding assembly to form a heating zone after passing through the focusing assembly so as to heat the optical fiber. Compact structure, occupation space is little, and is accomodate in the shell, can be convenient place in sealed storehouse carry out poisonous gas treatment or gaseous environmental control, application range is wide.
The optical fiber preparation apparatus of the present embodiment can heat the optical fiber by using a laser heating susceptor method. The laser heating susceptor method refers to a manufacturing method in which a laser is focused on a raw material susceptor to regrow a crystal material from a melted raw material.
Fig. 1 is a schematic view showing the structure of an embodiment of an optical fiber manufacturing apparatus 1 of the present application. Fig. 2 is a schematic diagram showing a structure of the optical fiber preparing apparatus a shown in fig. 1. Referring to fig. 1 and 2, the optical fiber preparation device 1 includes a housing 11, a laser 12, a lens assembly 13, a feeding assembly 14, a focusing assembly 15, and a pulling assembly 16, where the laser 12, the lens assembly 13, the feeding assembly 14, the focusing assembly 15, and the pulling assembly 16 are all assembled in the housing 11, and are sequentially disposed from bottom to top in a central axis direction B of the housing 11. The housing 11 has a cylindrical structure and includes a receiving cavity 111, and the laser 12, the lens assembly 13, the feeding assembly 14, the focusing assembly 15, and the pulling assembly 16 are assembled in the receiving cavity 111. In this embodiment, the pulling assembly 16 clamps the optical fiber 2 such that the optical fiber 2 extends downward through the focusing assembly 15, secured to the heating zone 141 at the top of the feeding assembly 14. As indicated by the arrow shown in fig. 1, the laser light emitted from the laser 12 passes through the lens assembly 13 and then outputs a ring laser light, which is focused by the focusing assembly 15 and then focused on the top of the feeding assembly 14 to form a heating zone 141 for heating the optical fiber 2. So set up, optical fiber preparation device 1 of this embodiment compact structure, occupation space is little, and is accomodate in the shell, can conveniently place in sealed storehouse and carry out poisonous gas treatment or gas environment control, application range is wide.
In the embodiment shown in fig. 1, the lens assembly 13 includes a pair of axicon lenses 131 disposed up and down, assembled to the inner side wall 112 of the housing 11. The pair of axicon lenses 131 are arranged symmetrically up and down. A pair of axicon lenses 131 are arranged coaxially with the laser 12. In the present embodiment, the center axes of the pair of axicon lenses 131, the center axis of the laser 12 and the center axis of the housing 11 are the same axis. The incidence surface of the lower conical lens 131 of the pair of conical lenses 131 is arranged towards the laser 12, the emission surface of the upper conical lens 131 is arranged towards the focusing assembly 15, and the incidence surface of the lower conical lens 131 is smaller than the emission surface of the upper conical lens 131 and is a plane. Thus, the laser light emitted from the laser 12 passes through the pair of axicon lenses 131 to form a ring laser light. The incidence surface of the conical lens 131 positioned below is smaller than that of the conical lens 131 positioned above, so that the laser emitted by the laser 12 is refracted to the conical lens 131 positioned above after passing through the conical lens 131 positioned below, thereby being beneficial to forming ring laser.
In the embodiment shown in fig. 1, the focusing assembly 15 includes a focusing mirror 151 assembled to the inner sidewall 112 of the housing 11 and above the feeding assembly 14. The refractive surface of the focusing mirror 151 is an arc surface 152, and the arc surface 152 is disposed toward the exit surface of the lens assembly 13 and is recessed toward the side away from the lens assembly 13 in the central axis direction B of the housing 11. The arcuate surface 152 is disposed downwardly. So arranged, the ring laser light formed is focused to the heating zone 141 at the top of the feed assembly 14 after passing through the arcuate surface 152 of the focusing mirror 151.
In the embodiment shown in fig. 1, the focusing mirror 151 is provided with a through hole 153 penetrating up and down, through which hole 153 the optical fiber 2 extends down to the top of the feeding assembly 14. This arrangement facilitates delivery of the optical fiber 2 to the heating zone 141. In the embodiment shown in fig. 1, the through hole 153 is located in the middle region of the focusing mirror 151, coaxially disposed with the feeding assembly 14. This arrangement facilitates delivery of the optical fiber 2 to the heating zone 141. In the embodiment shown in fig. 1, the size of the through hole 153 is larger than the diameter of the optical fiber 2. This arrangement facilitates the transport of the optical fiber 2. In the embodiment shown in fig. 1, the aperture of the through hole 153 is in the range of 0.02mm to 0.04mm larger than the diameter of the optical fiber 2. In some embodiments, the size of the aperture of the through hole 153 larger than the diameter of the optical fiber 2 may be 0.02mm or 0.03mm or 0.04mm, which is preferably 0.03mm. In the present embodiment, the size of the through hole 153 is not too large nor too small. Too large a setting may not bind the optical fiber 2 and the optical fiber 2 may deviate from the heating zone 141. Too small a setting may cause friction with the optical fiber 2, which is disadvantageous for transportation. Accordingly, the through hole 153 is appropriately sized to perform a binding function while facilitating conveyance.
In the embodiment shown in fig. 1, the feeding assembly 14 includes a linear motor 142 and a feeding member 143 connected to the linear motor 142, assembled to the inner sidewall 112 of the housing 11. The feeding member 143 is assembled on top of the linear motor 142, and the optical fiber 2 is disposed on top of the feeding member 143 and located in the heating zone 141. In this embodiment, the linear motor 142 can linearly move up and down in the central axis direction B of the housing 11, so as to drive the feeding member 143 to linearly move up and down in the central axis direction B of the housing 11. This arrangement facilitates the transport of the optical fibers 2.
In the embodiment shown in fig. 1, the pull assembly 16 includes a rotating motor assembled to the inner sidewall 112 of the housing 11. The rotary motor includes a driving wheel 161 and a driven wheel 162 connected to the driving wheel 161, and the optical fiber 2 is sandwiched between the driving wheel 161 and the driven wheel 162, and when the driving wheel 161 rotates, the driven wheel 162 is driven to rotate, thereby pulling the optical fiber 2. By using this way to pull the optical fiber, the preparation of the optical fiber 2 is facilitated.
In the embodiment shown in fig. 1, the optical fiber preparation device 1 further comprises a bracket assembly provided to the housing 11. The laser 12, lens assembly 13, feed assembly 14, focusing assembly 15, and pull assembly 16 are all assembled within the housing 11 by a bracket assembly.
In the embodiment shown in fig. 1, the bracket assembly includes an optical base 171. The laser 12 is assembled to the optical base 171. The optical base 171 is fixed to the bottom wall 113 of the housing 11 by a fastener, and the laser 12 is fixed to the bottom wall 113 of the housing 11 by the optical base 171. In this embodiment, the fastener may be a bolt. The optical base 171 is fixed to the bottom wall 113 of the housing 11 by bolts, and the laser 12 is fixed to the optical base 171 by bolts. The laser 12 is fixed to the bottom wall 113 of the housing 11 by the optical base 171, and the fixing effect is good.
In other embodiments, the optical base 171 is movably assembled to the bottom wall 113 of the housing 11, and the optical base 171 moves in a first direction and a second direction in a horizontal plane relative to the bottom wall 113 of the housing 11, and the laser 12 moves in the first direction and the second direction relative to the bottom wall 113 of the housing 11 through the optical base 171. Wherein the first direction and the second direction are arranged to intersect, in this embodiment, the first direction and the second direction are arranged vertically in a horizontal plane. In this way, the laser 12 is fixed on the optical base 171 through the fastener, and is adjusted to a proper position along with the upward and downward movement of the optical base 171 relative to the bottom wall 113 of the housing 11, so that the adjustment is flexible.
In the embodiment shown in fig. 1, the bracket assembly includes a pair of lens brackets 172. A pair of lens holders 172 are fixed to the inner side wall 112 of the housing 11 by fasteners, and a pair of axicon lenses 131 are fixed to the inner side wall 112 of the housing 11 by the pair of lens holders 172, respectively. In this embodiment, the fastener may be a bolt. A pair of lens holders 172 are fixed to the inner side wall 112 of the housing 11 by bolts, and a pair of axicon lenses 131 are fixed to the pair of lens holders 172 by fasteners, respectively. The pair of the conical lenses 131 are fixed to the inner side wall 112 of the housing by the pair of lens holders 172, and the fixing effect is good.
In other embodiments, a pair of lens holders 172 are movably assembled to the inner side wall 112 of the housing 11, the pair of lens holders 172 move in the central axis direction B of the housing 11 with respect to the inner side wall 112 of the housing 11, and the pair of axicon lenses 131 move in the central axis direction B of the housing 11 with respect to the inner side wall 112 of the housing 11 by the pair of lens holders 172, respectively. In this way, the pair of the conical lenses 131 are respectively fixed to the corresponding pair of the lens holders 172 by the fasteners, and are adjusted to a proper position by moving the pair of the lens holders 172 up and down relative to the inner side wall 112 of the housing 11.
In some embodiments, the bracket assembly includes a focusing mirror bracket 173. The focus mirror bracket 173 is fixed to the inner side wall 112 of the housing 11 by a fastener, and the focus mirror 151 is fixed to the inner side wall 112 of the housing 11 by the focus mirror bracket 173. In this embodiment, the fastener may be a bolt. The focus mirror bracket 173 is fixed to the inner side wall 112 of the housing 11 by a bolt, and the focus mirror 151 is fixed to the focus mirror bracket 173 by a bolt. The focusing mirror 151 is fixed to the inner side wall 112 of the housing 11 by the focusing mirror bracket 173, and the fixing effect is good.
In other embodiments, the focusing mirror bracket 173 is movably assembled to the inner sidewall 112 of the housing 11, and the focusing mirror bracket 173 moves in the center axis direction B of the housing 11 with respect to the inner sidewall 112 of the housing 11, and the focusing mirror 151 moves in the center axis direction B of the housing 11 with respect to the inner sidewall 112 of the housing 11 through the focusing mirror bracket 173. In this way, the focusing mirror 151 is fixed on the focusing mirror bracket 173 by the fastening piece, and is adjusted to a proper position along with the up-and-down movement of the focusing mirror bracket 173 relative to the inner side wall 112 of the housing 11, so that the adjustment is flexible.
In some embodiments, the carriage assembly includes a linear motor carriage 174. The linear motor bracket 174 is fixed to the inner side wall 112 of the housing 11 by a fastener, and the linear motor 142 is fixed to the inner side wall 112 of the housing 11 by the linear motor bracket 174. In this embodiment, the fastener may be a bolt. The linear motor bracket 174 is fixed to the inner sidewall 112 of the housing 11 by bolts, and the linear motor 142 is fixed to the linear motor bracket 174 by bolts. The linear motor 142 is fixed to the inner side wall 112 of the housing 11 by the linear motor bracket 174, and the fixing effect is good.
In the embodiment shown in fig. 2, the feeder assembly 14 further includes a motor adjustment bracket 175 assembled to the peripheral side of the linear motor 142 and connected to the linear motor bracket 174. The motor adjusting bracket 175 drives the linear motor 142 to move in the center axis direction B of the housing 11 relative to the inner sidewall 112 of the housing 11, or the motor adjusting bracket 175 drives the linear motor 142 to deflect in the center axis direction B of the housing 11. In this embodiment, the linear motor 142 is fixed to the linear motor bracket 174 by a motor adjustment bracket 175. By providing the motor adjusting bracket 175 in this way, the linear motor 142 can deflect or move up and down along with the motor adjusting bracket 175 relative to the central axis direction B of the housing 11.
In the embodiment shown in fig. 2, the linear motor bracket 174 has a plate-like structure, and the linear motor bracket 174 is disposed to extend in the central axis direction B of the housing 11, and has a thickness of not more than 2mm. The thickness of the linear motor bracket 174 is not too large nor too small. The setting is too large, which can block the transmission of the ring laser. Too small a setting, the rigidity of the support linear motor 142 is insufficient. The thickness of the linear motor bracket 174 is set to be appropriate, and the linear motor bracket is light and thin as possible under the condition of meeting certain supporting rigidity or strength, so that the formed annular laser is prevented from being blocked.
In other embodiments, the linear motor bracket 174 is movably assembled to the inner sidewall 112 of the housing 11, the linear motor bracket 174 moves in the central axis direction B of the housing 11 relative to the inner sidewall 112 of the housing 11, and the linear motor 142 moves in the central axis direction B of the housing 11 relative to the inner sidewall 112 of the housing 11 through the linear motor bracket 174. So set up, with the linear electric motor 142 fixed in linear electric motor bracket 174 through the fastener, along with the linear electric motor bracket 174 reciprocates relative to the inside wall 112 of shell 11, adjusts to suitable position, adjusts in a flexible way.
In the embodiment shown in fig. 1, the bracket assembly includes a gear bracket 176. The gear bracket 176 is fixed to the inner side wall 112 of the housing 11 by a fastener, and the driving wheel 161 and the driven wheel 162 of the rotary motor are fixed to the inner side wall 112 of the housing 11 by the gear bracket 176. In this embodiment, the fastener may be a bolt. The gear bracket 176 is fixed to the inner side wall 112 of the housing 11 by bolts, and the driving wheel 161 and the driven wheel 162 are fixed to the gear bracket 176 by bolts, respectively. The driving wheel 161 and the driven wheel 162 are fixed to the inner side wall 112 of the housing 11 by the gear bracket 176, and the fixing effect is good.
In other embodiments, the gear bracket 176 is movably assembled to the inner sidewall 112 of the housing 11, the gear bracket 176 moves in the central axis direction B of the housing 11 relative to the inner sidewall 112 of the housing 11, and the driving wheel 161 and the driven wheel 162 of the rotary motor move in the central axis direction B of the housing 11 relative to the inner sidewall 112 of the housing 11 through the gear bracket 176. So set up, fix the driving wheel 161 and the driven wheel 162 on the gear bracket 176 through the fastener, move up and down along with the gear bracket 176 relative to the inner side wall 112 of the shell 11, adjust to suitable position, adjust flexibly.
In this embodiment, the laser 12 may be a CO 2 A laser. An accurate angle adjustment is required, and two implementation methods exist. One way is to fix the bottom of the laser 12 to an optical base with two-dimensional angle adjustment, which is a common optical instrument, with high precision and easy acquisition. Another way is by temporarily connecting the sides of the laser 12Is fixed to the auxiliary optical base which can be adjusted in five dimensions, and is fixed to the bottom wall 113 of the housing 11 by cementing or welding after the angular position is adjusted, and then the auxiliary optical base is removed. The present application is not limited thereto.
In the present embodiment, the lens assembly 13 uses two conical lenses 131, and the two conical lenses 131 are made of zinc selenide (ZnSe) to ensure CO protection 2 The laser light has high transmittance, and the transmittance is further improved by plating an antireflection film. The diameter of the axicon 131 is 1 inch or 2 inches. The two axicon lenses 131 also require precise angular and positional adjustment, which are fixed to a 1-inch or 2-inch three-dimensional lens holder 172. The lens holder 172 is fixed to the inner side wall 112 of the housing 11 by bolts or welding. When cost reduction is required, the three-dimensional lens support 172 may not be used, and the non-adjustable lens support 172 may be used instead. The alignment is adjusted using the auxiliary optical base 171, and after the adjustment, glued or welded to the housing 11, the auxiliary optical base 171 is removed.
In this embodiment, the feeder assembly 14 uses a linear motor 142 to transport the optical fibers. The optical fiber is made into a round rod with the diameter of 1 mm-2 mm and the length of 50 mm-200 mm, and is fixed at the top end of the linear motor 142. The linear motor 142 may be selected from a variety of different precision and configuration schemes. For different forms of the linear motor 142, an adapter part can be arranged, one end of the adapter part is a cylinder, a raw material rod of an optical fiber can be inserted and fixed, and the other end of the adapter part is connected with the linear motor 142 through a fastener. The linear motor 142 is also fixed by considering adjustment, a linear motor bracket 174 for assisting adjustment can be used, and the linear motor bracket is welded on the housing 11 for fixation after adjustment, and the adjustment function can be reserved. The angle and position adjustment can be achieved using such a motor adjustment bracket 175 in both the upper and lower positions. The motor adjustment bracket 175 is welded to the housing 11 by a linear motor bracket 174. In this embodiment, the thickness of the linear motor bracket 174 is set to be not more than 2mm, so that excessive shielding of the ring laser is avoided, and the processing effect of the optical fiber is prevented from being affected. The motor wire 144 of the linear motor 142 of this embodiment is disposed at the bottom, and does not additionally block the laser. The device has the advantages of simple structure, low cost and wide application range.
In this embodiment, the focusing mirror 151 is mounted on a 2-inch three-dimensional focusing mirror mount 173 using a 2-inch diameter parabolic mirror. The focus mirror mount 173 is fixed to the housing 11 by bolts or welding. In this embodiment, a through hole 153 is provided in the middle of the parabolic mirror to allow the optical fiber to pass through.
In this embodiment, the pulling assembly 16 uses a rotating motor, and the optical fiber 2 can be pulled up by rotation by driving the driving pulley 161 and the driven pulley 162 to clamp the optical fiber 2. The entire structure may be fixed to the inner side wall 112 of the housing 11 by bolts or welding.
The optical fiber preparation device of the embodiment has compact structure and small occupied space, is accommodated in the shell 11, can be conveniently placed in a sealed bin for toxic gas treatment or gas environment control, and has wide application range. Compared with the related art, the structure with the lower laser 12 is adopted, so that a steering mirror is not needed in the system, and the effect of saving cost is achieved. And the whole system can be vertically placed, so that the structure is more compact, the space is saved, and the construction of an airtight environment is facilitated.
It should be noted that, the above-mentioned moving modes may be all implemented by electronic control, and may be implemented by software, hardware or a combination of software and hardware, which is not limited in the present application.
Other embodiments of the application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of the application following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the application pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the application being indicated by the following claims.
It is to be understood that the application is not limited to the precise arrangements and instrumentalities shown in the drawings, which have been described above, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the application is limited only by the appended claims.
Claims (12)
1. An optical fiber preparation apparatus, comprising: the laser, the lens component, the feeding component, the focusing component and the lifting component are assembled in the shell and are sequentially arranged from bottom to top in the central axis direction of the shell; the optical fiber is clamped by the lifting assembly, extends downwards through the focusing assembly, is fixed to the top of the feeding assembly, and outputs annular laser after passing through the lens assembly, and the annular laser is focused to the top of the feeding assembly to form a heating zone so as to heat the optical fiber after passing through the focusing assembly.
2. The optical fiber preparation device according to claim 1, wherein the lens assembly comprises a pair of conical lenses arranged up and down, assembled on the inner side wall of the housing; the pair of cone lenses and the laser are coaxially arranged, the incidence surface of the cone lens positioned below of the pair of cone lenses is arranged towards the laser, the emergent surface of the cone lens positioned above is arranged towards the focusing assembly, and the incidence surface of the cone lens positioned below is smaller than the emergent surface of the cone lens positioned above and is a plane; and laser emitted by the laser passes through the pair of conical lenses to form the annular laser.
3. The optical fiber preparation device according to claim 2, further comprising a pair of lens holders;
the pair of lens brackets are fixed on the inner side wall of the shell through fasteners, and the pair of cone lenses are respectively fixed on the inner side wall of the shell through the pair of lens brackets; or (b)
The pair of lens supports are movably assembled on the inner side wall of the shell, the pair of lens supports move relative to the inner side wall of the shell in the central axis direction of the shell, and the pair of conical lenses move relative to the inner side wall of the shell in the central axis direction of the shell through the pair of lens supports respectively.
4. The fiber preparation device of claim 1, wherein the focusing assembly comprises a focusing mirror assembled on an inner sidewall of the housing and positioned above the feeding assembly; the refraction surface of the focusing reflector is a cambered surface, the cambered surface is arranged towards the emergent surface of the lens assembly, and the cambered surface is recessed towards one side far away from the lens assembly in the central axis direction of the shell; and the ring laser is focused to the top of the feeding component after passing through the cambered surface of the focusing reflector.
5. The optical fiber preparation device according to claim 4, wherein the focusing mirror is provided with a through hole penetrating up and down, through which the optical fiber extends down to the top of the feeding assembly;
the through hole is positioned in the middle area of the focusing reflecting mirror and is coaxially arranged with the feeding component; and/or
The aperture of the through hole is larger than the diameter of the optical fiber; and/or
The aperture of the through hole is larger than the diameter of the optical fiber, and the size range is 0.02 mm-0.04 mm.
6. The fiber optic preparation device of claim 4, further comprising a focusing mirror support;
the focusing reflector bracket is fixed on the inner side wall of the shell through a fastener, and the focusing reflector is fixed on the inner side wall of the shell through the focusing reflector bracket; or (b)
The focusing reflector support is movably assembled on the inner side wall of the shell, the focusing reflector support moves relative to the inner side wall of the shell in the axial direction of the shell, and the focusing reflector moves relative to the inner side wall of the shell in the axial direction of the shell through the focusing reflector support.
7. The optical fiber preparation device according to claim 1, wherein the feeding assembly comprises a linear motor and a feeding member connected with the linear motor, and is assembled on the inner side wall of the housing; the feeding piece is assembled at the top of the linear motor, and the optical fiber is arranged at the top of the feeding piece.
8. The fiber preparation device of claim 7, further comprising a linear motor support;
the linear motor support is fixed on the inner side wall of the shell through a fastener, and the linear motor is fixed on the inner side wall of the shell through the linear motor support; or (b)
The linear motor support is movably assembled on the inner side wall of the shell, the linear motor support moves relative to the inner side wall of the shell in the central axis direction of the shell, and the linear motor moves relative to the inner side wall of the shell in the central axis direction of the shell through the linear motor support.
9. The optical fiber preparation device according to claim 8, wherein the linear motor support is of a plate-shaped structure, extends along the central axis direction of the housing, and has a thickness of not more than 2mm; and/or
The feeding assembly further comprises a motor adjusting bracket which is assembled on the periphery of the linear motor and is connected with the linear motor bracket; the motor adjusting bracket drives the linear motor to move relative to the inner side wall of the shell in the direction of the central axis of the shell; or the motor adjusting bracket drives the linear motor to deflect relative to the central axis direction of the shell.
10. The fiber optic preparation device of claim 1, wherein the pulling assembly comprises a rotating electrical machine assembled to an inner sidewall of the housing; the rotating motor comprises a driving wheel and a driven wheel connected with the driving wheel, the optical fiber is clamped between the driving wheel and the driven wheel, and when the driving wheel rotates, the driven wheel is driven to rotate, so that the optical fiber is pulled.
11. The fiber preparation device of claim 10, further comprising a gear rack;
the gear bracket is fixed on the inner side wall of the shell through a fastener, and the driving wheel and the driven wheel of the rotating motor are fixed on the inner side wall of the shell through the gear bracket; or (b)
The gear support is movably assembled on the inner side wall of the shell, the gear support moves relative to the inner side wall of the shell in the central axis direction of the shell, and the driving wheel and the driven wheel of the rotating motor move relative to the inner side wall of the shell in the central axis direction of the shell through the gear support.
12. The optical fiber preparation device of claim 1, further comprising an optical base to which the laser is assembled;
the optical base is fixed on the bottom wall of the shell through a fastener, and the laser is fixed on the bottom wall of the shell through the optical base; or (b)
The optical base is movably assembled on the bottom wall of the shell, the optical base moves in a first direction and a second direction of a horizontal plane relative to the bottom wall of the shell, and the laser moves in the first direction and the second direction relative to the bottom wall of the shell through the optical base; wherein the first direction and the second direction are arranged in an intersecting manner.
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| CN202310979803.5A CN116903242A (en) | 2023-08-04 | 2023-08-04 | Optical fiber preparation device |
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| CN202310979803.5A CN116903242A (en) | 2023-08-04 | 2023-08-04 | Optical fiber preparation device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN118773721A (en) * | 2024-06-25 | 2024-10-15 | 湖北汽车工业学院 | A single crystal optical fiber growth device and method with continuous feeding |
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