WO2023040536A1 - Émetteur-récepteur optique multidirectionnel à fibre unique et module optique - Google Patents

Émetteur-récepteur optique multidirectionnel à fibre unique et module optique Download PDF

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Publication number
WO2023040536A1
WO2023040536A1 PCT/CN2022/112226 CN2022112226W WO2023040536A1 WO 2023040536 A1 WO2023040536 A1 WO 2023040536A1 CN 2022112226 W CN2022112226 W CN 2022112226W WO 2023040536 A1 WO2023040536 A1 WO 2023040536A1
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Prior art keywords
light
wave
optical
mirror
signal
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PCT/CN2022/112226
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English (en)
Chinese (zh)
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雷星宇
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中兴通讯股份有限公司
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Publication of WO2023040536A1 publication Critical patent/WO2023040536A1/fr

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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 application relates to the technical field of optical fiber communication, in particular to a single-fiber multi-directional optical transceiver device and an optical module.
  • Single-fiber multi-directional optical transceivers are favored by customers as a laying solution that can save half of the fiber.
  • One-fiber multi-wavelength 10Gbps low-rate optical transceivers such as the single-fiber four-way small SFP+10G COMBO PON OLT optical module of the TO solution are very popular in the market.
  • Embodiments of the present application provide a single-fiber multi-directional optical transceiver device and an optical module.
  • the embodiment of the first aspect of the present application provides a single-fiber multi-directional optical transceiver, including: an optical port, the optical port is used to install a single-port optical fiber; a light emitting module, the light emitting module includes at least two light emitters, each The light emitters are arranged in parallel and at intervals, and the light output direction of the light emitters is along the first direction; a detection module, the detection module includes at least two detectors, and each of the detectors is arranged at intervals along the second direction; a combination mirror group , the wave-combining mirror group is set to converge the light emission signals emitted from each of the light emitters, and the light emission signals are converged and directed to the optical port;
  • the receiving signal can be directed to the wave splitting mirror group, and the wave splitting mirror group is configured to separate each of the light receiving signals entering from the optical port, and reflect each of the light receiving signals to the corresponding detection device; a circuit processing unit, and the circuit processing unit is communicatively connected to both the light emitting module
  • the embodiment of the second aspect of the present application also provides an optical module, including the single-fiber multi-directional optical transceiver device according to the embodiment of the first aspect.
  • Fig. 1 is the schematic diagram of the transceiver device in the known technology
  • Figure 2 is a schematic diagram of adding a TEC temperature control function to the transmitting unit in the known technology
  • Fig. 3 is a schematic diagram of a transceiver device with three transmissions and three receptions in the known technology
  • Fig. 4 is the schematic diagram of the transceiver device of two optical ports in the known technology
  • Fig. 5 is the circuit connection diagram of the transceiver device of two optical ports in the known technology
  • FIG. 6 is a schematic diagram of the circuit connection of the photoelectric conversion frame in this embodiment.
  • Fig. 7 is a front view of an implementation mode of the single-fiber multi-directional optical transceiver device in this embodiment when three receptions and three transmissions are performed;
  • Fig. 8 is a schematic diagram of an implementation mode of the single-fiber multi-directional optical transceiver device in this embodiment when two transmissions and two receptions are performed;
  • Fig. 9 is a schematic diagram of the wave combining mirror group in the embodiment shown in Fig. 8;
  • Fig. 10 is a schematic diagram of the wave splitting mirror group in the embodiment shown in Fig. 8;
  • Fig. 11 is a schematic diagram of another implementation mode of the single-fiber multi-directional optical transceiver device in this embodiment when three receptions and three transmissions are performed;
  • Figure 12 is a front view of the embodiment shown in Figure 11;
  • Fig. 13 is a schematic diagram of the wave combining mirror group in the embodiment shown in Fig. 11;
  • Fig. 14 is a schematic diagram of the wave splitting mirror group in the embodiment shown in Fig. 11
  • Fig. 15 is a schematic diagram of another embodiment of the multiplexing mirror group when the single-fiber multi-directional optical transceiver device in this embodiment receives three times and sends three times;
  • Fig. 16 is a schematic diagram of another embodiment of the three-receive and three-transmit time-division mirror group of the single-fiber multi-directional optical transceiver device in this embodiment.
  • orientation descriptions such as up, down, front, back, left, right, etc. indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only In order to facilitate the description of the present application and simplify the description, it does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present application.
  • the 10G rate downlink transmitting unit is usually equipped with a thermoelectric cooler (Thermo Electric Cooler, TEC) temperature control function, and the 2.5G rate downlink transmitting unit does not have a laser temperature control unit.
  • TEC thermoelectric cooler
  • the feasible length dimension of the transceiver device is A
  • the standard limited width dimension is B.
  • the TEC temperature control function needs to be added.
  • the 50G rate TO-CAN will increase the height dimension and increase the width of the transceiver.
  • the width of the transceiver exceeds Dimension b makes it impossible to meet SFP+.
  • the transmitting unit and the receiving unit need two optical ports to complete, and the transmitting unit has been attached with a WDM prism combining prism group, and the combined optical signal is output from one optical port.
  • the receiving unit inputs the optical wavelength signal from another optical port with a demultiplexing prism group to complete the demultiplexing.
  • this structure is to complete the single-fiber transceiver, a WDM multiplexer and demultiplexer group needs to be placed at the two optical ports. Not only is the structure complex, but also the optical fiber needs to be coiled in the device, and the process requirements are also improved.
  • an embodiment of the present application provides a single-fiber multi-directional optical transceiver, including an optical port, a light emitting module, a detection module, a wave combining mirror group 10, a wave splitting mirror group 20 and a circuit processing unit.
  • the circuit processing unit is communicatively connected with the light-emitting module and the detection module to control the conversion of the photoelectric signal or the uplink and downlink transmission.
  • the optical port is correspondingly formed with an optical channel.
  • the light transmitting signal is combined by the wave combining mirror group 10 and then directed to the optical port along the optical channel.
  • the wave combining mirror group 10 and the wave splitting mirror group 20 in this embodiment constitute an optical module, hereinafter referred to as this module; the single-fiber multi-directional optical transceiver device in this embodiment, hereinafter referred to as this device.
  • the optical path refers to the propagation path in space when the light emitted by the optical fiber fixed at the optical port enters the device through the optical port and does not pass through the wave combining mirror group 10 and the wave splitting mirror group 20 .
  • the optical channel need not be formed by a specific physical structure.
  • the wave-splitting mirror group 20 and the wave-combining mirror group 10 are arranged in sequence along the direction away from the optical port, that is, the light receiving signal entering from the optical port is split after being directed to the wave-splitting mirror group 20, and will not be directed to the multiplexer. mirror group 10; and the emitted light signal from the light-emitting module is transmitted through the wave-splitting mirror group 20 after being combined, and then directed to the optical port. It can be understood that the wave splitting mirror group 20 will not affect the propagation of the light beam formed by converging the transmitted optical signal.
  • the light emitting module includes at least two light emitters 13 , and it is easy to understand that the light emission signals emitted by each light emitter 13 have different wavelengths.
  • the light emitters can be lasers.
  • each light emitter can be provided with a collimator lens 14 at the light exit respectively, and the collimator lens 14 can make the light energy emitted by the light emitter 13 form a collimated light column and enter the module, so as to ensure that the light emission signal is transmitted in the module.
  • the propagation path in the group is clear and precise.
  • Each light emitter 13 sends light emission signals of different wavelengths to the wave combining mirror group 10, and the wave combining mirror group 10 is set to converge the light emission signals sent from each light emitter, and after the light emission signals are converged, they can be directed to the optical port along the optical path channel , the optical fiber at the optical port can transmit all optical transmission signals of different wavelengths outward.
  • the detecting module includes at least two detectors, and each detector is set to receive light-receiving signals of different wavelengths.
  • the light receiving signal sent from the optical port can enter the wave splitting mirror group 20 along the optical path.
  • the optical port itself does not send out the light receiving signal, but the light receiving signal reaches the optical port through the optical fiber, and enters the device from the optical port.
  • the wave splitting mirror group 20 is configured to separate the received light signals entering from the optical port, and reflect the received light signals to corresponding detectors.
  • each detector can be provided with a converging lens 23 at the receiving place, and the received light signal can be converged on the main optical axis after passing through the converging lens 23, so that the detector can fully collect the light quantity of the received light signal.
  • the light emitters are arranged in parallel and at intervals, and the detectors are arranged at intervals. Since the light emitter and the detector are arranged at intervals, it is convenient to install the light emitter 13 and the detector. It can be understood that all the turning light paths corresponding to the optical ports may be perpendicular to the first direction, or may not be perpendicular to the first direction. Referring to FIG. 7 , the light emitters are arranged at intervals along the first direction, and the detectors are arranged at intervals along the second direction.
  • the three light emitters 13 are arranged side by side, on the basis that one of the light emitters 13 already has a temperature control unit, even if the remaining light emitters 13 are provided with a temperature control unit, the number of light emitters 13 with a large thickness will not increase.
  • Increasing and further increasing the width of the device is beneficial to the realization of miniaturized packaging. Understandably, the first direction is parallel to the second direction, thereby reducing the width of the device and effectively improving space utilization.
  • the multiplexer mirror group 10 includes at least two multiplexer mirrors arranged along the first direction, the number of multiplexer mirrors is the same as that of the light emitters, and the positions of the multiplexer mirrors and the light emitters correspond one-to-one .
  • the wave combining mirror is divided into at least two first wave combining mirrors 11 and one second wave combining mirror 12 .
  • the second multiplex mirror 12 has a converging place located in the optical path channel, each first multiplex mirror 11 can reflect the corresponding optical transmission signal to the converging place, and the second multiplex mirror 12 can transmit the corresponding optical transmission signal to the converging place. After all the optical transmission signals converge at the convergence point, they can be sent to the optical port along the optical path. At least two wave combining mirrors are arranged along the first direction.
  • each wave combining mirror is a filter with specific reflection and transmission characteristics, and the wave combining mirrors are arranged at intervals and parallel to each other.
  • Each first multiplex mirror 11 forms an included angle of 45° with the direction of propagation of the light transmission signal incident from the light emitter, ensuring that each first multiplex mirror 11 can reflect the corresponding light transmission signal; correspondingly, the second multiplexer
  • the mirror 12 also forms an included angle of 45° between the propagation direction of the light emission signal incident from the light emitter, so that the second wave combining mirror 12 can reflect the light emission signal incident from the remaining light emitters, and can also make the light emission signal incident on the corresponding light emitter The light emission signal is transmitted through.
  • the second wave combining mirror 12 reflects the light emission signals incident from the remaining light emitters to propagate along the optical path, and also makes the light emission signals incident on the corresponding light emitters propagate along the optical path after transmission, and the light emission signals incident from all light emitters After converging at the converging place, a light beam is formed, and each optical transmission signal is combined and emitted to the optical port along the optical path.
  • each wave combining mirror is a prism
  • the side of the prism has a coating layer
  • the wave combining mirrors are glued to each other through a glue layer.
  • an angle of 45° is formed between each first multiplexer 11 and the propagation direction of the light transmission signal incident from the light emitter, and correspondingly, the second multiplexer 12 is also connected to the direction of propagation of the light transmission signal incident from the light emitter. There is an angle of 45° between the propagation directions.
  • the prism with a coating layer can reflect the incident light transmission signal of the corresponding light emitter to the converging place of the second multiplex mirror 12 , and can also transmit the light transmission signal incident from other light emitters.
  • the glued surface of the first combined mirror 11 closest to the second combined mirror 12 and the second combined mirror 12 form a converging place, and the light transmission signals incident from the rest of the light emitters are reflected by the glued surface after arriving at the converging place, At the same time, the light emission signal incident from the light emitter corresponding to the second multiplex mirror 12 also reaches the focal point after being transmitted.
  • the light transmission signals incident from all the light emitters are converged at the converging point to form a light beam, and each light transmission signal is combined and emitted to the optical port along the optical path.
  • the number of first multiplexer mirrors 11 is one.
  • the two optical emission signals injected from the light emitter are optical emission signal ⁇ 1 and optical emission signal ⁇ 2 in sequence. It is easy to understand that the wavelength of the optical emission signal ⁇ 1 is ⁇ 1, and the wavelength of the optical emission signal ⁇ 2 is ⁇ 2.
  • the optical transmission signal ⁇ 1 enters from the first light emitter 131 and shoots to the first wave combining mirror 11, and the first wave combining mirror 11 reflects the light transmitting signal ⁇ 1 to the converging place of the second wave combining mirror 12; at the same time, the light transmitting signal ⁇ 2 enters from the second light emitter 132 and goes to the second multiplexer mirror 12 .
  • the optical transmission signal ⁇ 2 is transmitted through the second wave combining mirror 12 and reaches the converging place, and the second wave combining mirror 12 reflects the light transmitting signal ⁇ 1, so that the light transmitting signal ⁇ 1 can propagate along the optical path after being reflected at the converging place, that is, the light After being reflected by the second wave combining mirror 12, the transmit signal ⁇ 1 is aggregated with the light transmit signal ⁇ 2 to form a light beam, and the merged beam is emitted to the optical port along the optical path.
  • the wave combining mirror is a prism
  • the light emitting signal ⁇ 2 enters from the second light emitter
  • the light emitting signal ⁇ 2 propagates along the optical path
  • the second wave combining mirror 12 does not affect the propagation direction of the light emitting signal ⁇ 2; and
  • the wave combining mirror is a filter
  • the light emission signal ⁇ 2 does not propagate along the optical path when it enters from the second light emitter.
  • the light emission signal ⁇ 2 is refracted and reaches The propagation direction of the optical emission signal ⁇ 2 at the converging point is along the direction of the optical path.
  • the number of the second multiplexer mirrors 12 is at least two.
  • the number of first multiplexer mirrors 11 is at least two. It is easy to understand that the wavelengths of the optical transmission signals that can be reflected by each first multiplexer mirror 11 are different.
  • the first multiplexer mirror 11 has a first end face and a second end face opposite to each other. The first end surfaces of each first multiplexer mirror 11 are far away from the second multiplexer mirror 12 , and the first multiplexer mirror 11 can transmit the optical transmission signal incident from the first end surface.
  • the second end surface of the first multiplex mirror 11 closest to the second multiplex mirror 12 is opposite to or attached to the second multiplex mirror 12.
  • the remaining first multiplex mirrors 11 can at least transmit the light transmission signal incident from its first end face; or , all the first multiplex mirrors 11 can transmit the light transmission signals of the remaining wavelength bands except that the light transmission signals of a specific wavelength band emitted by the corresponding light emitters can be reflected.
  • the reflection directions of the first multiplex mirrors 11 are all parallel to the first direction.
  • the reflection direction of the first multiplex mirror 11 refers to the propagation direction of the optical transmission signal after being reflected by the first multiplex mirror 11 .
  • the glued surfaces of the first wave combining mirror 11 and the second wave combining mirror 12 play a role of total transmission for the transmitted optical signal, and play a role of total reflection for the split-wave received signal.
  • a collimating lens 14 may be provided at the light exit of each light emitter 13 .
  • the three light emitters 13 are respectively the first light emitter 131, the second light emitter 132 and the third light emitter 133.
  • the collimator lenses 14 corresponding to the positions of the light emitters 13 are the first collimator lenses respectively. 141 , a second collimating lens 142 and a third collimating lens 143 .
  • each wave combining mirror is a prism
  • Figure 11 When each wave combining mirror is a prism, refer to Figure 11 to Figure 13; when each wave combining mirror is a filter with transmission and reflection for a specific wavelength band, refer to Figure 15.
  • the case where the number of light emitters 13 is three is taken as an example for description.
  • the three light emission signals emitted by the three light emitters are light emission signal ⁇ 1, light emission signal ⁇ 2 and light emission signal ⁇ 3 in sequence. It is easy to understand that the wavelength of the light emission signal ⁇ 1 emitted by the first light emitter 131 is ⁇ 1, and the wavelength of the light emission signal ⁇ 1 from the second light emitter 131 is ⁇ 1.
  • the wavelength of the optical emission signal ⁇ 2 emitted by 132 is ⁇ 2
  • the wavelength of the optical emission signal ⁇ 3 emitted by the third light emitter 133 is ⁇ 3, and ⁇ 1, ⁇ 2 and ⁇ 3 are different.
  • the light transmission signal ⁇ 1 enters from the first light emitter and shoots to the first first multiplexer 11, the light transmission signal ⁇ 1 is reflected by the first first multiplexer 111, and the reflected light transmission signal ⁇ 1 is fully transmitted through Through No. 2 first multiplex mirror 112, shoot to the converging place of second multiplex mirror 12;
  • the mirror 112 reflects the optical emission signal ⁇ 2, and the reflected optical emission signal ⁇ 2 is converged with the optical emission signal ⁇ 1 after passing through the second multiplexer mirror 112 and is directed to the converging point of the second multiplexer mirror 12 together.
  • the light emission signal ⁇ 2 is reflected by the second multiplex mirror 112 after being reflected by the reflected light signal ⁇ 1 transmitted through the first multiplex mirror 112. merged, and the merged light beams are directed to the second wave combining mirror 12 together.
  • the light beam combined by the optical emission signal ⁇ 1 and the optical emission signal ⁇ 2 reaches the converging place of the second wave combining mirror 12, and is totally reflected by the second wave combining mirror 12 to change the direction of propagation; while the light emitting signal ⁇ 3 emitted from the third light emitter 133 is transmitted through After passing through the second wave combining mirror 12 and arriving at the converging place, the optical transmission signal ⁇ 3 is aggregated with the combined optical transmission signal ⁇ 1 and optical transmission signal ⁇ 2 to form a beam, and the combined beam is emitted to the optical port along the optical path.
  • the wave splitting mirror group 20 includes at least two wave splitting mirrors 22 and a mirror group, the mirror group is configured to reflect the light receiving signal to each wave splitting mirror 22, the wave splitting mirror 22 and The number of detectors is the same, and the positions of the wave splitting mirrors 22 correspond to the detectors one by one.
  • the wave-splitting mirrors 22 are all prisms, and the sides of the prisms have coating layers, and the wave-splitting mirrors 22 are glued to each other through a glue layer. It is easy to understand that the wavelengths of the received light signals that can be reflected by each wavelength splitting mirror 22 are different.
  • the wave splitting mirror group 20 may further include a turning mirror, and the turning mirror is located between the wave splitting mirror 22 and the detector.
  • the turning mirror can reflect the received light signal emitted from the wave splitting mirror 22 to the corresponding detector.
  • the turning mirror can change the direction of the light receiving signal, so that the arrangement of the detection module is more flexible, and it is beneficial to improve the space utilization rate.
  • the reflector group includes a reflector 21 , the reflection direction of the reflector 21 is parallel to the second direction, the reflection direction and the propagation direction of the received light signal reflected by the reflector 21 .
  • Each wave-splitting mirror 22 is arranged along the second direction, and each wave-splitting mirror 22 is respectively configured to reflect a light receiving signal to a corresponding detector.
  • the reflective mirror 21 is also a prism, and the side of the reflective mirror 21 has a coating layer, and the reflective mirror 21 and the nearest wave splitting mirror 22 are glued to each other by a glue layer.
  • the angle between the outgoing light of the optical path channel and the normal direction of the reflective surface of the reflector 21 is 13° to 50°
  • each wave-splitting mirror 22 has opposite first end faces and second end faces, and each wave-splitting mirror 22 has an angle of 13° to 50°.
  • the first end surface and the second end surface are parallel to the reflective surface of the mirror element 21 . Therefore, after the light receiving signal is reflected by the corresponding wave splitting mirror 22, it can be bent at a right angle and then propagated. length and width.
  • the angle between the outgoing light of the optical path channel and the normal direction of the reflecting surface of the reflecting mirror 21 may be 45°.
  • the case where the number of the wave-splitting mirrors 22 is three is used as an example for illustration, and the wave-splitting mirrors 22 are arranged in sequence along a direction gradually away from the reflecting mirror 21 .
  • the light beam entering from the optical port along the optical path includes a received light signal ⁇ 4, a received light signal ⁇ 5, and a received light signal ⁇ 6. It is easy to understand that the received light signal ⁇ 4 has a wavelength of ⁇ 4, and the received light signal ⁇ 5 has a wavelength of ⁇ 5. , the wavelength of the light receiving signal ⁇ 6 is ⁇ 6, and ⁇ 4, ⁇ 5 and ⁇ 6 are not equal.
  • the light beam reaches the reflection mirror 21 along the optical path, and the reflection mirror 21 reflects the light beam to the No.
  • the end face of the wave splitting mirror 223 reflects the light receiving signal ⁇ 6 to the third detector, and the remaining light receiving
  • the signal ⁇ 4 and the light-receiving signal ⁇ 5 are transmitted through the No. 3 wave-splitting mirror 223 until the light beam combined by the light-receiving signal ⁇ 4 and the light-receiving signal ⁇ 5 propagates to the No. 2 wave-splitting mirror 222, and the end face of the wave-splitting mirror 222 will The light-receiving signal ⁇ 5 is reflected to the second detector, and the remaining light-receiving signal ⁇ 4 is transmitted through the No.
  • each wavelength splitting mirror 22 is away from the reflection mirror 21 , and the wavelength splitting mirror 22 can transmit the light receiving signal incident from the first end surface thereof.
  • the first end face of the wave splitter mirror 22 is opposite to the second end face, and the first end face of the wave splitter mirror 21 closest to the reflective mirror 21 is attached to the reflective mirror 21 .
  • the remaining wave-splitting mirrors 22 can at least allow light receiving signals of several wavelength bands incident from their first end faces to pass through; or, All the wave splitting mirrors 22 can transmit the light receiving signals of the remaining wavelength bands except for the reflection of the light receiving signals of specific wavelength bands.
  • the reflecting mirror group has opposite first reflecting surfaces 2121 and first transmitting surfaces 2122, and the wave splitting mirrors 22 are respectively located between the first transmitting surfaces 2122 and corresponding detectors, and the splitting The wave mirror 22 can make a light receiving signal transmit to the corresponding detector, and at least one wave splitting mirror 22 can reflect the remaining light receiving signal to the first reflecting surface 2121, and the first reflecting surface 2121 reflects the remaining light receiving signal to the next adjacent wave splitting mirror 22.
  • the wave splitting mirrors 22 are arranged in sequence along a direction gradually away from the reflecting mirror 21 .
  • the light beam entering from the optical port along the optical path includes the light receiving signal ⁇ 4, the light receiving signal ⁇ 5 and the light receiving signal ⁇ 6. It is easy to understand that the wavelength of the light receiving signal ⁇ 4 is ⁇ 4, the wavelength of the light receiving signal ⁇ 5 is ⁇ 5, and the light receiving signal ⁇ 6 The wavelength of ⁇ 6, ⁇ 4, ⁇ 5 and ⁇ 6 are not equal.
  • the light beam entering from the optical port is transmitted through the first transmission surface 2122 of the mirror group and then directed to the No. 1 wave splitting mirror 221.
  • 1 wave splitting mirror 221 can make the light receiving signal ⁇ 4 transmit to the first detector, and the light receiving The signal ⁇ 6 and the light receiving signal ⁇ 5 are reflected back to the first reflective surface 2121 of the mirror group;
  • the wave-splitting mirror 222 can make the light-receiving signal ⁇ 5 transmitted to the second detector, and the light-receiving signal ⁇ 6 is reflected back to the first reflection surface 2121 of the mirror group;
  • the No. 3 demultiplexing mirror 223 can transmit the received light signal ⁇ 6 to the third detector, thereby completing the demultiplexing of the light beam. It can be understood that in this embodiment, the No. 3 wave splitting mirror 223 may not be provided, and the light receiving signal ⁇ 6 can still be sent to the third detector.
  • a converging lens 23 can be provided at the receiving place of each detector, and three converging lenses 23 correspond to each detector one by one.
  • No. 1 converging lens 231 is located between the first detector and No. 1 wave splitting mirror 221
  • No. 2 converging lens 232 is located between the second detector and No. 2 wave splitting mirror 222
  • No. 3 converging lens 233 is located between Between the third detector and the third wave splitting mirror 223 .
  • the reflective mirror group may include a reflective mirror on which both the first reflective surface 2121 and the first transmissive surface 2122 are disposed.
  • the reflector is a prism, the first reflective surface 2121 and the first transmissive surface 2122 of the reflector both have coatings, and the wave splitting mirror 22 is glued on the first transmissive surface 2122 of the reflector through a glue layer.
  • the optical channel can pass through the first transmissive surface 2122, so that the light beam entering from the optical port along the optical channel can be directed to the first transmissive surface 2122, thereby completing the above wave splitting process.
  • the reflector group includes a first reflector 211 and a second reflector 212, and the first reflective surface 2121 and the first transmissive surface 2122 are both arranged on the second reflector 212, respectively.
  • the mirror element 22 is glued on the first transmission surface 2122 of the second reflector 212 through a glue layer.
  • the second reflective mirror 212 also has an opposite second reflective surface 2123 , and the received light signal entering along the optical path is reflected by the first reflective mirror 211 and the second reflective surface 2123 in sequence, and then reaches the wave splitting mirror 22 .
  • the light beam that enters along the optical path from the optical port is first reflected by the first reflector 211 to the second reflector 212, and the light beam propagates in the second reflector 212 until it reaches the second reflective surface 2123, and the light beam reflected by the second reflective surface 2123 Then it is irradiated to the first transmission surface 2122, and the subsequent wave splitting process is the same as above.
  • the first reflection mirror 211 is glued on the second transmission surface of the second reflection mirror 212 through a glue layer.
  • the light beam entering from the optical port is firstly reflected by the first reflection mirror 211 to the second reflection mirror 212 and then split into waves, it can be adjusted by adjusting The relative position of the first reflector 211 and the second reflector 212 can more flexibly adjust the relative position of the optical port and the detector, without ensuring that the optical path must pass through one of the detectors.
  • the wave splitting mirror group 20 further includes an extension lens 213 configured to enhance the strength of the received light signal, and the extension lens 213 is located between the first transmission surface 2122 and the wave splitting mirror 22 , the extension lens 213 has a third transmission surface 2131 and a fourth transmission surface 2132 parallel to each other, the third transmission surface 2131 is attached to the first transmission surface 2122 , and the wave splitting mirror 22 is installed on the fourth transmission surface 2132 .
  • the extension lens 213 is a prism, the third transmission surface 2131 of the extension lens 213 is glued to the first transmission surface 2122 through the glue layer, and the wave splitting lens is glued to the fourth transmission surface 2132 through the glue layer.
  • the extended lens 213 prolongs the optical path length of the light receiving signal between the second reflector 212 and the wave splitting mirror 22, thereby reducing the distance between two adjacent light receiving signals when they are emitted, thereby reducing the time required for setting the module. desired width.
  • the circuit processing unit includes a first receiving circuit, a second receiving circuit and a conversion circuit.
  • the first receiving circuit is communicatively connected with each light emitter 13 of the light-emitting module, the first receiving circuit is configured to receive several external electrical signals, and the conversion circuit is configured to convert the external electrical signal into a downlink electrical signal and then input it to the light-emitting module, thereby Each light emitter 13 can emit light emission signals of different wavelengths.
  • the second receiving circuit is communicatively connected with each detector of the detecting module, the second receiving circuit is configured to receive a plurality of detecting electrical signals input from the detecting module, and the conversion circuit can convert the detecting electrical signals into uplink electrical signals and output them outward.
  • the light beam condensed by the light receiving signal ⁇ 4 and the light receiving signal ⁇ 5 enters the second reflector 212 from the optical port, and is reflected by the glued surface of the second reflector 212 and the first reflector 211 to reflect the light beam to the second reflector 212.
  • the second reflective surface 2123 of the mirror 212, the second reflective surface 2123 totally reflects the light beam to the No.
  • the received light signal ⁇ 5 is reflected to the first reflective surface 2121, and the first reflective surface 2121 reflects the received light signal ⁇ 5 to the second wave splitting mirror 222, and the second wave splitting mirror 222 transmits the received light signal ⁇ 5.
  • the first receiving circuit receives a number of external electrical signals, and the conversion circuit respectively converts these external electrical signals into a first downlink electrical signal, a second downlink electrical signal and a third downlink electrical signal, and transmits them to the three light emitters 13 respectively .
  • the three light emitters 13 perform electro-optic conversion after receiving the corresponding downlink electrical signals.
  • the three light emitters 13 are the first light emitter, the second light emitter and the third light emitter.
  • the first light emitter sends out the light emission signal ⁇ 1, and the second light emitter
  • the light emitter emits a light emission signal ⁇ 2
  • the third light emitter emits a light emission signal ⁇ 3, and the three light emission signals with different wavelengths are sent to the wave combining mirror group 10, and the wave combining mirror group 10 aggregates the three light emission signals into a light beam, and the light beam
  • the light emitted along the optical path to the optical port is received by the single-port optical fiber 30 .
  • the single-port optical fiber 30 guides the light beam formed by combining multiple light receiving signals to the optical port, and the light beam entering the device from the optical port shoots to the wave-splitting mirror group 20 along the optical path, and the wave-splitting mirror group 20 divides the light beam into the first light beam
  • the receiving signal ⁇ 4, the second light receiving signal ⁇ 5 and the third light receiving signal ⁇ 6, each light receiving signal is sent to each corresponding detector and received.
  • the three detectors are respectively the first detector, the second detector and the third detector.
  • the first detector converts the first light receiving signal ⁇ 4 into the first uplink electrical signal and then outputs it.
  • the second detector converts
  • the second light receiving signal ⁇ 5 is converted into a second uplink electrical signal and then output
  • the third detector converts the third light receiving signal ⁇ 6 into a third uplink electrical signal and then output.
  • An embodiment of the present application further provides an optical module, which includes the single-fiber multi-directional optical transceiver and the single-port optical fiber 30 as shown in the above-mentioned embodiments.
  • the end of the single-port optical fiber 30 is located at the optical port, and the light emitted by the single-port optical fiber 30 enters the single-fiber multi-directional optical transceiver device from the optical port, and the light emitted by the single-port optical fiber 30 can propagate along the optical path channel; After multiplexing, it can also be directed to the single-port optical fiber 30 at the optical port through the optical path channel.
  • a single-fiber multi-directional optical transceiver device and optical module proposed in the embodiment of the present application by setting the single-port optical fiber in the optical port, the wave combining mirror group aggregates the light receiving signals of different wavelengths emitted by the light emitter and guides them to the optical port.
  • the aggregated beams of different optical receiving signals emitted from the optical port are separated by the wave splitting mirror group and then directed to each detector, so that a single optical port structure can be used to transmit and receive optical signals.
  • the light emitters are arranged in parallel and at intervals with the light output direction along the first direction, and the detectors are arranged along the second direction, so that the length or width of the single-fiber multi-directional optical transceiver device will not be greatly increased when adding light emitters or detectors, effectively improving the space.
  • the utilization rate is beneficial to miniaturization and packaging, and the economy is improved.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Communication System (AREA)

Abstract

L'invention concerne un émetteur-récepteur optique multidirectionnel à fibre unique, comprenant un port optique ; un module électroluminescent comprenant au moins deux émetteurs de lumière (13) ; un module de détection comprenant au moins deux détecteurs ; un groupe de lentilles de combinaison (10), configuré pour faire converger des signaux d'émission de lumière émis par les émetteurs de lumière (13), les signaux d'émission de lumière étant convergents et ensuite émis vers le port optique ; un groupe de lentilles de séparation (20), configuré pour séparer des signaux de réception de lumière entrant à partir du port optique, et réfléchir les signaux de réception de lumière vers des détecteurs correspondants ; et une unité de traitement de circuit, connectée en communication à la fois au module électroluminescent et au module de détection. L'invention concerne un module optique comprenant l'émetteur-récepteur optique multidirectionnel à fibre unique.
PCT/CN2022/112226 2021-09-14 2022-08-12 Émetteur-récepteur optique multidirectionnel à fibre unique et module optique WO2023040536A1 (fr)

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CN202111084111.1A CN115808749A (zh) 2021-09-14 2021-09-14 一种单纤多向光收发装置及光模块

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CN117055179B (zh) * 2023-10-12 2023-12-26 武汉钧恒科技有限公司 一种50G PON Combo OLT三模兼容光器件

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006003490A (ja) * 2004-06-16 2006-01-05 Matsushita Electric Ind Co Ltd 光送受信器
CN104678515A (zh) * 2015-02-11 2015-06-03 武汉锐奥特科技有限公司 用于单纤双向的光器件光路结构
CN104991320A (zh) * 2015-07-24 2015-10-21 福州百讯光电有限公司 一种多波长单纤双向光收发模块及其工作方法
WO2018170828A1 (fr) * 2017-03-23 2018-09-27 华为技术有限公司 Ensemble optique bidirectionnel, unité de réseau optique, terminal de ligne optique et système de réseau optique passif
CN110912610A (zh) * 2019-10-29 2020-03-24 中航海信光电技术有限公司 波分复用收发一体光模块、系统及实现方法
CN210243908U (zh) * 2019-09-03 2020-04-03 深圳市迅特通信技术有限公司 一种单纤双向光模块

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006003490A (ja) * 2004-06-16 2006-01-05 Matsushita Electric Ind Co Ltd 光送受信器
CN104678515A (zh) * 2015-02-11 2015-06-03 武汉锐奥特科技有限公司 用于单纤双向的光器件光路结构
CN104991320A (zh) * 2015-07-24 2015-10-21 福州百讯光电有限公司 一种多波长单纤双向光收发模块及其工作方法
WO2018170828A1 (fr) * 2017-03-23 2018-09-27 华为技术有限公司 Ensemble optique bidirectionnel, unité de réseau optique, terminal de ligne optique et système de réseau optique passif
CN210243908U (zh) * 2019-09-03 2020-04-03 深圳市迅特通信技术有限公司 一种单纤双向光模块
CN110912610A (zh) * 2019-10-29 2020-03-24 中航海信光电技术有限公司 波分复用收发一体光模块、系统及实现方法

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