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WO2019173999A1 - Composant émetteur-récepteur optique, module optique et dispositif de communication - Google Patents

Composant émetteur-récepteur optique, module optique et dispositif de communication Download PDF

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Publication number
WO2019173999A1
WO2019173999A1 PCT/CN2018/079139 CN2018079139W WO2019173999A1 WO 2019173999 A1 WO2019173999 A1 WO 2019173999A1 CN 2018079139 W CN2018079139 W CN 2018079139W WO 2019173999 A1 WO2019173999 A1 WO 2019173999A1
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WO
WIPO (PCT)
Prior art keywords
light
laser
angle
filter
optical
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2018/079139
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English (en)
Chinese (zh)
Inventor
康竞然
李远谋
卫张
李希光
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huawei Technologies Co Ltd
Original Assignee
Huawei Technologies Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Priority to PCT/CN2018/079139 priority Critical patent/WO2019173999A1/fr
Priority to CN201880091229.7A priority patent/CN111868590B/zh
Publication of WO2019173999A1 publication Critical patent/WO2019173999A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • G02B6/24—Coupling light guides
    • G02B6/42—Coupling light guides with opto-electronic elements

Definitions

  • the present invention relates to the field of optical communication technologies, and in particular, to a light-emitting device, an optical module, and a communication device.
  • the optical module is mainly used to realize photoelectric and electro-optical conversion, that is, the transmitted data signal is converted into an optical signal and transmitted to the opposite end through the optical fiber, and the optical signal transmitted from the opposite end is received from the optical fiber and converted into the optical signal. After the electrical signal is generated, the received data is recovered from the electrical signal.
  • the existing bidirectional optical component for the optical module integrates the original receiver, the laser, the amplifier and the like into a package body, and the transmitting part and the receiving part share a package body and a coupling lens, and the emitted light and the received light pass through a 45.
  • the filter is multiplexed, the laser is horizontally illuminated relative to the base, and the optical path is completed in a chamber of a package. Since the receiver is not additionally protected, the laser emitting light may pass through the wave plate during transmission to cause optical crosstalk.
  • Embodiments of the present invention provide a light-receiving device that overcomes the technical problem of generating optical crosstalk when transmitting or receiving an optical signal.
  • the embodiment of the invention further provides an optical module and a communication device.
  • a light-emitting device includes a susceptor, a laser, an optical receiver, and a filter; the filter is provided with a splitting surface, the pedestal includes a mesa, the optical receiver and the filter Placed on the mesa, and the filter is disposed obliquely with respect to the mesa, the laser is located on a side of the filter provided with the demultiplexing surface, and the optical receiver is located at the filter Deviating from a side of the laser, and the filter shields a receiving optical port of the optical receiver, the optical receiver receiving light transmitted through the filter, and the light emitted by the laser passes through the demultiplexing surface Reflected, and the optical axis of the laser emitting light has an angle of less than 45 degrees with the normal of the surface of the separating surface. Increasing the isolation of the light receiver from the emitted light reduces the problem of optical crosstalk generated by the laser emitting light during transmission.
  • the angle between the optical axis of the laser emitting light and the normal of the demultiplexing surface is less than or equal to 40 degrees, which can improve the shielding of the optical crosstalk.
  • the optical axis of the light emitted by the laser is disposed at a first angle with the mesa, and the first angle is greater than or equal to 0 degrees; to achieve an optical axis of the laser emitting light and a normal of the demultiplexing surface The angle is less than 45 degrees.
  • the optical axis of the light emitted by the laser and the first angle of the mesa are greater than 0 degrees, and the filter is inclined at an angle of less than or equal to 45 degrees with respect to the mesa, wherein the light-emitting device comprises
  • the cap includes a top wall, a peripheral wall disposed around the top wall, and a lens disposed on the top wall, the optical axis of the lens being perpendicular to the mesa.
  • the angle of the laser is changed without changing the angle commonly used by the filter, and the angle between the optical axis of the laser emitting light and the normal of the surface of the separating surface is less than 45 degrees.
  • the pedestal is provided on one side of the mesa with a support boss, the support boss includes a support plane parallel to the mesa, and the laser is located on the support plane.
  • a mirror on the optical path of the laser the mirror being disposed obliquely with respect to the support plane such that an optical axis of the laser emitting light is reflected by the mirror to be at the first angle with the mesa,
  • the laser can be placed on a plane to achieve tilting of the exiting light by a tilted mirror without changing the angle of the supporting plane to reduce the optical crosstalk problem generated by the laser emitting light during transmission.
  • the pedestal is provided with a supporting boss on a side of the mesa, the supporting boss includes a supporting plane parallel to the mesa, and the laser includes a housing and is protruded from the housing and a light-emitting tube of the surface of the vertical surface of the table, the end of the light-emitting tube is a light-emitting hole, and the central axis of the light-emitting tube is at the first angle compared with the surface of the housing.
  • the structure is simple and does not need to be Adding an extra structure to the abutment requires only changing the exit angle of the laser to achieve a first angle setting with the table.
  • the pedestal is provided with a supporting boss on a side of the mesa, the supporting boss includes a supporting inclined surface at the first angle with respect to the mesa, and the laser is placed on the supporting inclined surface And the optical axis of the laser emitting light is parallel to the supporting slope.
  • the structure is simple, and it is easy to manufacture without adding an extra structure to the base.
  • the angle of the filter is inclined relative to the mesa is greater than 45 degrees, and the optical axis of the light emitted by the laser is parallel to the mesa.
  • only the angle of the filter is determined during the process of creative labor, so that the angle of the filter is determined.
  • the angle is set to satisfy that the angle between the optical axis of the laser emitting light and the normal of the demultiplexing surface is less than 45 degrees, and the structure is simple and easy to assemble.
  • the lens disposed on the top wall and the peripheral wall disposed around the top wall the lens is spherical and disposed at a center position of the top wall, and an optical axis of the lens is disposed at an angle with the mesa, and
  • the light emitted by the laser is reflected by the splitting surface and passes through the optical axis of the lens.
  • the reflected light passing through the filter is emitted through the lens, and the light returned through the lens is also received by the shopping accelerator.
  • the filter comprises a wave plate, a metal film and a microporous metal film, the wave plate comprising a light passing region opposite to the receiving light port of the light receiver and a shielding region surrounding the light passing region, the metal
  • the film is attached to a shielding area on a surface of the wave plate, and the microporous metal film is attached to the other surface of the wave plate.
  • the filter is covered on both sides by a metal film to form a battery shielding function to prevent the electromagnetic signal of the laser from generating point crosstalk to interfere with the performance of the optical receiver.
  • the microporous metal film is made of an anti-oxidation metal material
  • the metal film is made of gold or a light-transmitting metal material.
  • the shielding surface is further provided with a shielding cover
  • the shielding cover includes an open end
  • the filter piece is fixed on the shielding cover and seals the open end
  • the shielding cover is disposed on the light receiving On the device.
  • the electrical shielding effect is directly achieved by the shield cover that covers the light receiver, which is easy to assemble.
  • the pedestal includes a surface, and the surface is concavely provided with a shielding groove, the mesa is a surface of the bottom wall of the shielding groove, and the light receiver and the filter are received in the shielding groove, and the The optical receiver is disposed in the shielding slot, and the laser is located outside the shielding slot, which can effectively prevent electromagnetic interference generated by the laser to the optical receiver.
  • the sum of the angle value of the first angle and the angle value of the second angle is 90 degrees.
  • the best anti-crosstalk effect is achieved by achieving the best angle between the laser light and the sky.
  • the support body and the support boss are integrally formed with the base, or the table top is a surface of a flat plate, and the support body and the support boss protrude from the flat plate.
  • the flat plate is mounted on the shielding groove or surface of the base to realize a simple manufacturing process of the base.
  • the embodiment of the invention provides an optical module, comprising a circuit board and the above-mentioned light-emitting device, wherein the light-emitting device is electrically connected to the circuit board.
  • the embodiment of the invention provides a communication device, which comprises the optical module.
  • the communication device is an optical line terminal (OLT) or an optical network unit (ONU).
  • OLT optical line terminal
  • ONU optical network unit
  • the light-receiving device can reduce the angle between the optical axis of the laser emitting light and the normal of the wave-dividing surface by less than 45 degrees, which can effectively reduce the laser emission light during the transmission process. The resulting optical crosstalk problem.
  • the light-emitting device of the invention has an optical axis of the laser emitting light and an angle of the normal of the wave-dividing surface less than 45 degrees, so as to increase the isolation of the light-receiver from the emitted light and prevent the part of the light from being reflected back to the filter.
  • the large-angle light is directly transmitted through the filter to the optical receiver to form optical crosstalk, thereby reducing the optical crosstalk problem generated by the laser emitted light during transmission.
  • FIG. 1 is a schematic view showing the structure of a light-emitting device according to a first embodiment of the present invention.
  • FIG. 2 is a schematic cross-sectional view showing a portion of the structure of the light-emitting device shown in FIG. 1, wherein the embodiment of the laser realizes a first implementation in which the optical axis of the emitted light is at a first angle a1 from the mesa.
  • FIG. 3 is a schematic cross-sectional view of the light-emitting device shown in FIG. 1.
  • FIG. 4 is a schematic view showing a second implementation manner of the light-emitting device of the first embodiment of the present invention for realizing the optical axis of the light emitted by the laser at a first angle a1 from the mesa.
  • FIG. 5 is a schematic diagram showing a third implementation manner of the light-emitting device of the first embodiment of the present invention for realizing the optical axis of the light emitted by the laser at a first angle a1 from the mesa.
  • Figure 6 is a schematic cross-sectional view of the filter of the embodiment of the present invention illustrated in Figures 1 - 5.
  • Figure 7 is a schematic cross-sectional view showing a portion of the structure of the light-emitting device of the second embodiment of the present invention.
  • Figure 8 is a schematic cross-sectional view showing a portion of the structure of the light-emitting device of the third embodiment of the present invention.
  • Fig. 9 is a schematic view showing another mode of the light-emitting device shown in Fig. 8.
  • Embodiments of the present invention provide a light-receiving device and an optical module.
  • the optical module includes the light-receiving device and a circuit board, and the light-emitting device is electrically connected to the circuit board.
  • the light-emitting device comprises a susceptor, a laser, an optical receiver and a filter; the filter is provided with a splitting surface, the base comprises a mesa; the optical receiver and the filter are placed in the a mesa on the mesa, wherein the filter is disposed obliquely with respect to the mesa, the laser is located on a side of the filter provided with the demultiplexing surface, and the optical receiver is located away from the laser of the filter One side, and the filter shields a receiving optical port of the optical receiver, the optical receiver receives light transmitted through the filter, and the light emitted by the laser is reflected via the splitting surface, and The angle between the optical axis of the laser emitting light and the normal of the demultiplexing surface is less
  • an optical axis of the light emitted by the laser is disposed at a first angle with the mesa, and the first angle is greater than or equal to 0 degrees, thereby implementing an optical axis of the laser emitting light and a normal of the demultiplexing surface.
  • the angle is less than 45 degrees.
  • an angle between an optical axis of the emitted light of the laser and a normal line of the splitting surface is less than or equal to 40 degrees, and the anti-light crosstalk effect can be achieved in a better state.
  • the light-emitting device and the optical module provided by the embodiments of the present invention are further described in the following specific embodiments.
  • the light-emitting device according to the first embodiment of the present invention includes a susceptor 10, a laser 12, a light receiver 14 and a filter 16; the filter 16 is provided with a splitting surface 161, and the pedestal 10 Includes a countertop 101.
  • the optical receiver 14 and the filter 16 are placed on the mesa 101, and the filter 16 is disposed obliquely with respect to the mesa 101.
  • the placement of the optical receiver 14 and the filter 16 on the mesa 101 means that it is supported on the mesa by the support, or can be directly placed on the mesa, and is set according to actual needs.
  • the laser 12 is located on a side of the filter 16 on which the demultiplexing surface 161 is disposed, and the optical receiver 14 is located on a side of the filter 16 facing away from the laser 12, and the filter 16 is Blocking the receiving optical port of the light receiving 14 (not shown), the light receiver 14 receives the light transmitted through the filter 16, and the light emitted by the laser 12 is reflected by the splitting surface 161, together Referring to FIG. 2, the angle a between the optical axis of the light emitted by the laser 12 and the normal O of the partial surface 161 is less than 45 degrees.
  • the optical axis of the light emitted by the laser 12 and the first angle a1 of the mesa 101 are greater than 0 degrees, and the angle of inclination of the filter 16 relative to the mesa 101 is the second angle a2 is less than or equal to 45 degrees.
  • the second angle in the embodiment is 45 degrees.
  • the sum of the first angle a1 and the second angle a2 is greater than 50 degrees.
  • the first angle a1 is 35 degrees
  • the second angle a2 may be selected to be 27.5 degrees.
  • the sum of the angle value of the first angle and the angle value of the second angle is 90 degrees.
  • the optical axis of the light emitted by the laser is reflected by the polarization surface and is opposite to the optical axis of the lens. Ejecting along the optical axis of the lens can reduce the dispersion of light and achieve the best anti-light crosstalk effect.
  • the base 10 includes a surface 1001 having a rectangular shielding groove 11 recessed therein.
  • the shielding groove 11 includes a groove bottom wall parallel to the surface 1001, that is, the table top 101 and two opposite groove side walls 111.
  • the table top 101 is a horizontal plane.
  • the light-emitting device further includes a cap 30 including a top wall 301 and a peripheral wall 302 disposed around the top wall 301, and a lens 31 disposed on the top wall 301.
  • the lens 31 is spherical and is provided at the center of the top wall 301.
  • the peripheral wall 302 of the cap 30 abuts against the periphery of the surface 11 and simultaneously houses the laser 12, the light receiver 14, and the filter 16 therein with the top wall 301.
  • the optical axis of the lens 31 is perpendicular to the mesa, and the lens 31 is spherical and disposed at a center position of the top wall.
  • the optical receiver 14 receives and transmits optical signals transmitted through the
  • the filter 16 is in the form of a sheet, and includes the splitting surface 161 and a plane 162 disposed opposite to the splitting surface.
  • the filter 16 is located in the shielding slot 11 to shield the optical receiver 14 and is inclined with respect to the mesa 101.
  • the plane 162 faces the light receiver 14, and the splitting surface 161 faces away from the light receiver 14 and has a second angle a2 with the mesa 101 of 45 degrees.
  • the filter 16 can also be supported in the shielding slot 11 by the support.
  • a support body (not shown) is disposed on the mesa 101 on both sides of the laser 12, and the support body includes a slope for supporting the filter 16.
  • the laser 12 is supported by a support boss.
  • the support body and the support boss are integrally formed with the base, or the table top is a surface of a flat plate, and the support body and the support boss protrude from the flat plate, and the flat plate Mounted on the shielding groove or surface of the base.
  • a preamplifier 15 is disposed on a side of the optical receiver 14 remote from the filter 16.
  • the preamplifier 15 is placed on the mesa 101 and connected to the optical receiver 14 through a wire.
  • the feedback signal is sent to the preamplifier 15 and converted into a voltage signal output by the preamplifier 15.
  • the optical receiver 14 receives the optical signal and transmits it to the preamplifier 15 and converts it into a voltage signal through the preamplifier 15
  • the pin output of the preamplifier 15 is connected.
  • the laser 12, the optical receiver 14 and the filter 16 and the preamplifier 15 are placed in the shielding slot 11 and the filter 16 shields at least the receiving optical port of the optical receiver 14.
  • the frequency interference signal hardly enters the shielding slot 11 and is received by the optical receiver 14, and the reduction of the transmitting end, that is, the electromagnetic signal of the laser 12, crosstalks the optical receiver 14, and the crosstalk of the light can also be reduced.
  • the support boss 105 includes The supporting slope 50 of the first angle a1 is opposite to the mesa 101.
  • the laser 12 is supported on the supporting inclined surface 106, and the optical axis of the laser 12 emits light is parallel to the supporting inclined surface 106.
  • the support boss 103 is cut and formed toward the groove sidewall 111 of the splitting surface 161 of the filter 16.
  • the laser 12 is supported on the support slope 106 by a square block 017, and the laser 12 emits light. The light is directed toward the splitting surface 161.
  • the supporting inclined surface 106 is disposed at a first angle a1
  • the light of the laser 12 is emitted at a first angle a1
  • the light is incident on the partial surface 161 of the filter 16, and
  • the angle a of the normal O of the wave splitting surface 161 is less than 45 degrees. In this embodiment, it is only necessary to change the plane supporting the laser to a bevel, and the structure is simple, and it is easy to manufacture without adding an extra structure to the base.
  • a second implementation manner of realizing the optical axis of the light emitted by the laser 12 and the mesa 101 at a first angle a1 is as follows:
  • the embodiment is different in that the pedestal 10 is located on the side of the mesa 101 and is provided with a support boss 103.
  • the support boss 103 includes a support plane 104 parallel to the mesa 101, and the support plane 104 is provided with a support plane 104.
  • the mirror 121 is disposed obliquely with respect to the support plane 104, and an optical axis of the laser 12 emitting light and the mesa 101 are at the first angle In a1, the angle a between the optical axis of the light emitted by the laser 12 and the normal O of the branching surface 161 is less than 45 degrees.
  • the surface 1001 of the supporting protrusion 103 on the shielding groove 11 side, the laser 12 and the mirror 121 are fixed on the supporting plane 104, and the light exiting hole of the laser 12 faces away from the supporting convex
  • the stage 103, and the optical axis of the emitted light of the laser 12 and the first angle a1 of the mesa 101 are greater than 45 degrees, which can be understood as being close to or equal to 90 degrees.
  • the surface and the surface of the laser 12 are emitted.
  • the 101 is arranged in parallel, and the first angle a1 may be an angle between the surface of the laser 12 and the light.
  • the emitted light of the laser 12 enters the mirror 121 and is reflected back to the branching surface 161, and an angle a with the normal O of the wave splitting surface 161 is less than 45 degrees, and the light splitting through the splitting surface 161 enters the Light within the lens 31 and passing back through the lens 31 is received by the optical receiver 14 through the filter 16.
  • the laser can be placed on a plane to achieve tilting of the exiting light by a tilted mirror without changing the angle of the supporting plane to achieve the problem of reducing the optical crosstalk generated by the laser emitted light during transmission.
  • a third implementation manner of realizing the optical axis of the light emitted by the laser 12 and the mesa 101 at a first angle a1 is as follows:
  • the embodiment of the present invention is characterized in that the laser 12 includes a housing 121 and a light-emitting tube 122 protruding from a surface of the housing 121 perpendicular to the mesa 101.
  • the end of the light-emitting tube 122 is a light-emitting hole.
  • the light-emitting tube 122 faces the splitting surface 161, and the central axis of the light-emitting tube 122 is disposed at the first angle a1 compared to the table 101.
  • the structure is simple, and no additional structure is needed on the base, only Changing the exit angle of the laser allows a first angle setting with the table top.
  • the light of the laser 12 is emitted from the light exit hole of the light-emitting tube 122, the optical axis of the emitted light is at a first angle a1 with the mesa 101, and the light is incident on the partial surface 161 of the filter 16.
  • the angle a from the normal O of the wave splitting surface 161 is less than 45 degrees.
  • the filter 16 includes a wave plate 162, a metal film 163, and a microporous metal film 164.
  • the wave plate 162 includes a light passing region opposite to the receiving optical port of the light receiver 14. 1621 and a shielding region 1622 surrounding the light-passing region 1621, the metal film 163 is attached to the shielding region 1622 on a surface of the wave plate 162, and the microporous metal film 164 is attached to the other surface of the wave plate 162. .
  • the filter 16 shields the light receiver 14 , and the surface of the light receiving region 1621 is provided with a metal film 163 and a microporous metal film 164 to form an electromagnetic shielding effect on the region where the light receiver 14 is located to prevent the laser 12 from being shielded.
  • the electromagnetic signal is crosstalked to the optical receiver 14 to avoid affecting the receiving sensitivity of the optical receiver 14.
  • the microporous metal film 164 is made of an anti-oxidation metal material
  • the metal film 163 is made of gold or a light-transmitting metal material.
  • the surface 1001 of the susceptor 10 is the mesa
  • the light-emitting device further includes a shielding cover 18, the light
  • the receiver 14 and the filter 16 and the preamplifier 15 are placed on the mesa 101 and are enclosed in the shield case 18.
  • This embodiment is described by way of a third embodiment of the first embodiment.
  • the support boss 105 is supported outside the shield cover 18, and the shield cover 18 includes a metal sidewall 181 and a top wall 182.
  • the sidewall 181 and the top wall 182 are provided with an open end at the junction, the filter 16 is fixed on the shield cover 18 and seals the open end, and is disposed at an angle of 45 degrees with respect to the mesa 101.
  • the splitting surface 161 is disposed opposite to the laser 12, and the light emitted by the laser 12 is reflected by the splitting surface 161.
  • the lens is emitted, and the light that has passed through the lens passes through the filter 16 and enters the shield 18 and is received by the light receiver 14.
  • Other positions of the shield can form an electromagnetic shielding function to prevent the electromagnetic signal of the laser 12 from being crosstalked to the light.
  • Receiver 14 avoid influence The receiver 14 of the reception sensitivity.
  • the shield case 18 of the second embodiment of the present invention can be applied to the base plate provided with the shielding groove of the first embodiment to improve the shielding effect.
  • the first embodiment is different from the first embodiment in that the angle of the filter is inclined with respect to the mesa, that is, the second angle is greater than 45 degrees, and the optical axis of the light emitted by the laser Parallel to the mesa, that is, the first angle a1 is 0 degrees, and the angle a between the optical axis of the laser 12 and the normal O of the demultiplexing surface 161 is ensured to be less than 45 degrees.
  • the cap 19 includes a top wall 191, a lens 192 disposed at the center of the top wall 191, and a peripheral wall 193 disposed around the top wall 191.
  • the edge of the peripheral wall 193 is a slope, and the cap 19 is covered by
  • the lens 192 is spherical and the optical axis of the lens 192 is disposed at an angle with the mesa 101, and the light emitted by the laser 12 is reflected by the splitting surface 161 and passes through the
  • the optical axis of the lens 192 further ensures that when the angle a between the optical axis of the laser 12 and the normal O of the demultiplexing surface 161 is less than 45 degrees, the reflected light passing through the filter 16 is emitted through the lens 192. And the light coming back through the lens 192 is also received by the shopping accelerator 14.
  • one end of the base 10 away from the surface 1001 may be a slope so that the surface 1001 and the table top 101 are inclined, and the cap 19 may be vertically covered on the base 10.
  • the light-emitting device further includes a casing, and the casing is disposed outside the pipe cap and disposed coaxially with the pipe cap.
  • the end of the casing facing the lens is provided with a through hole, and the other end is provided with a port for inserting the optical fiber, and the beam and the center line of the through hole of the port coincide with the center line of the lens.
  • the optical fiber mainly refers to an adapter including a fiber ferrule and a casing, and the optical receiver 14 receives an optical signal that comes back through the optical fiber.
  • the embodiment of the invention further protects an optical module, comprising the light-emitting device of any one of the above embodiments of the circuit board, wherein the light-emitting device is electrically connected to the circuit board.
  • the embodiment of the invention also protects a communication device, including the optical module described above.
  • the communication device is an optical line terminal (OLT) or an optical network unit (ONU).
  • OLT optical line terminal
  • ONU optical network unit
  • OLT optical line terminal
  • ONU optical network unit
  • it can also be other communication devices, and is not limited to the ones listed in this embodiment.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Semiconductor Lasers (AREA)

Abstract

Des modes de réalisation de la présente invention concernent un composant d'émetteur-récepteur optique, comprenant une base, un laser, un récepteur optique et un filtre. Le filtre présente une surface de division d'onde. La base comprend une mesa. Le récepteur optique et le filtre sont disposés sur la mesa et le filtre est disposé obliquement par rapport à la mesa. Le laser est disposé sur le côté du filtre présentant la surface de division d'onde. Le récepteur optique est disposé sur le côté du filtre à l'écart du laser et le filtre protège un port optique de réception du récepteur optique. Le récepteur optique reçoit une lumière transmise par l'intermédiaire du filtre. Une lumière émise par le laser est réfléchie par la surface de division d'onde, et, l'angle entre l'axe optique de la lumière projetée par le laser et la normale à la surface de division d'onde est inférieur à 45°. La présente invention concerne également un module optique et un dispositif de communication.
PCT/CN2018/079139 2018-03-15 2018-03-15 Composant émetteur-récepteur optique, module optique et dispositif de communication Ceased WO2019173999A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/CN2018/079139 WO2019173999A1 (fr) 2018-03-15 2018-03-15 Composant émetteur-récepteur optique, module optique et dispositif de communication
CN201880091229.7A CN111868590B (zh) 2018-03-15 2018-03-15 收发光器件、光模块及通讯设备

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2018/079139 WO2019173999A1 (fr) 2018-03-15 2018-03-15 Composant émetteur-récepteur optique, module optique et dispositif de communication

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WO2019173999A1 true WO2019173999A1 (fr) 2019-09-19

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Cited By (2)

* Cited by examiner, † Cited by third party
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CN110609300A (zh) * 2019-10-24 2019-12-24 杭州光珀智能科技有限公司 深度相机
CN115900596A (zh) * 2022-12-07 2023-04-04 杭州华境光电有限公司 一种光器件用滤波片安装角度检测装置

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