WO2024114148A1 - 一种光通讯设备、光器件及其组装方法 - Google Patents

一种光通讯设备、光器件及其组装方法 Download PDF

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Publication number
WO2024114148A1
WO2024114148A1 PCT/CN2023/125171 CN2023125171W WO2024114148A1 WO 2024114148 A1 WO2024114148 A1 WO 2024114148A1 CN 2023125171 W CN2023125171 W CN 2023125171W WO 2024114148 A1 WO2024114148 A1 WO 2024114148A1
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WIPO (PCT)
Prior art keywords
optical
filter
laser emitter
receiver
light
Prior art date
Application number
PCT/CN2023/125171
Other languages
English (en)
French (fr)
Inventor
葛召江
高飞
董浩
李杨洁
李吉祥
周娅玲
Original Assignee
华为技术有限公司
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Publication of WO2024114148A1 publication Critical patent/WO2024114148A1/zh

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G02B6/4201—Packages, e.g. shape, construction, internal or external details
    • G02B6/4204—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms
    • G02B6/4215—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms the intermediate optical elements being wavelength selective optical elements, e.g. variable wavelength optical modules or wavelength lockers
    • 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
    • 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
    • G02B6/4201—Packages, e.g. shape, construction, internal or external details
    • G02B6/4219—Mechanical fixtures for holding or positioning the elements relative to each other in the couplings; Alignment methods for the elements, e.g. measuring or observing methods especially used therefor
    • G02B6/4236—Fixing or mounting methods of the aligned elements
    • G02B6/4239—Adhesive bonding; Encapsulation with polymer material
    • 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
    • G02B6/4201—Packages, e.g. shape, construction, internal or external details
    • G02B6/4256—Details of housings
    • G02B6/4257—Details of housings having a supporting carrier or a mounting substrate or a mounting plate
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/006—Filter holders

Definitions

  • the present application relates to the field of optical communication technology, and in particular to an optical communication device, an optical component and an assembly method thereof.
  • 50G PON 50Gbit/s PON, 50000M passive optical network
  • existing optical transceiver devices cannot meet the needs of simultaneous transmission and reception of GPON, 10G PON, and 50G PON optical signals.
  • the embodiments of the present application provide an optical communication device, an optical device and an assembly method thereof, which can meet the requirements of simultaneous transmission and reception of optical signals of GPON, 10G PON and 50G PON.
  • an embodiment of the present application provides an optical device.
  • the optical device includes an optical interface, an optical transmitting device, an optical receiving device, and a plurality of filters.
  • the optical transmitting device includes a first laser transmitter, a second laser transmitter, and a third laser transmitter.
  • the first laser transmitter, the second laser transmitter, and the third laser transmitter are respectively used to transmit optical signals of three different communication protocols.
  • the three different communication protocols can be a first communication protocol for the 10G PON protocol, a second communication protocol for the 50G PON protocol, and a third communication protocol for the GPON protocol.
  • the first communication protocol includes receiving a modulated optical signal with a rate of 10Gbps and a wavelength of 1260 to 1280nm, and converting the received modulated electrical signal with a rate of 10Gbps into a modulated optical signal with a wavelength of 1575 to 1580nm for transmission.
  • the second communication protocol includes receiving a modulated optical signal with a rate of 50Gbps and a wavelength of 1284 to 1288nm, and converting the received modulated electrical signal with a rate of 50Gbps into a modulated optical signal with a wavelength of 1340 to 1344nm for transmission.
  • the third communication protocol includes receiving a modulated optical signal with a rate of 1.25 Gbps and a wavelength of 1290-1330 nm, and converting the received modulated electrical signal with a rate of 2.5 Gbps into a modulated optical signal with a wavelength of 1480-1490 nm for transmission.
  • the optical signals of three different communication protocols emitted by the first laser emitter, the second laser emitter, and the third laser emitter in the embodiment of the present application can also be other communication protocols, which will not be described one by one here.
  • the optical receiving device includes a first optical receiver, a second optical receiver and a third optical receiver.
  • the first optical receiver, the second optical receiver and the third optical receiver are used to receive optical signals of three different communication protocols.
  • the optical signals of the three different communication protocols received here can also be the first communication protocol, the second communication protocol and the third communication protocol, or optical signals of other communication protocols.
  • the optical signal of each communication protocol can be received by an optical receiver in the optical device and emitted by a laser transmitter.
  • the optical device also includes a plurality of filters, which are arranged at intervals.
  • the plurality of filters include a first filter group, a second filter group, a third filter group and a fourth filter group.
  • the first filter group is located on the receiving optical path of the first optical receiver, and is used to import the optical signal of the first communication protocol among the optical signals containing three different communication protocols imported from the optical interface to the first optical receiver, and to export the optical signal of the second communication protocol and the optical signal of the third communication protocol among the three different communication protocol optical signals.
  • the second filter group is located on the optical path from the first filter group to the second optical receiver, and is used to import the optical signal of one communication protocol transmitted from the first filter group into the second optical receiver, and allow the optical signal of another communication protocol to be exported.
  • the third filter group is located on the optical path from the second filter group to the third optical receiver, and is used to import the optical signal exported from the second filter group into the third optical receiver. Therefore, the optical device of the embodiment of the present application can simultaneously meet the requirements of receiving GPON, 10G PON and 50G PON optical signals at the same time.
  • the fourth filter group is located on the outgoing optical path of the first laser transmitter, the second laser transmitter and the third laser transmitter. The fourth filter group is used to combine the optical signal of the first communication protocol emitted by the first laser emitter, the optical signal of the first communication protocol emitted by the second laser emitter, and the optical signal of the third communication protocol emitted by the third laser emitter into the optical interface. Therefore, the optical device of the embodiment of the present application can simultaneously meet the requirements of simultaneous emission of GPON, 10G PON, and 50G PON optical signals.
  • the optical device also includes a housing, and the plurality of filters are located in the housing.
  • the optical interface, the optical transmitting device and the optical receiving device can be arranged in On the housing.
  • the optical port of the optical interface, the optical outlet of the optical emitting device, and the optical inlet of the optical receiving device are all located in the housing.
  • a mounting surface is formed on the inner wall of the housing. The side surface of at least one of the multiple filters is bonded to the mounting surface.
  • the edge line or edge corner of the filter itself can be used as an adjustment reference, so that the installation position and angle of the filter are more accurate, thereby reducing the installation error of multiple filters to below ⁇ 0.3°, ensuring the wave splitting accuracy of the filters in the optical device.
  • the optical device also includes a Z-block filter assembly, which includes at least one of the above-mentioned multiple filters and an adjustment support. All filters in the Z-block filter assembly can be set on the adjustment support.
  • the adjustment support can specifically be an adjustment prism or an adjustment bracket.
  • the adjustment support can be connected to the shell by bonding.
  • the edge line or edge of the adjustment support itself can be used as an adjustment reference, so that the installation position and installation angle of all filters in the Z-block filter assembly are more accurate. Thereby, the installation error of multiple filters can be reduced to less than ⁇ 0.3°, ensuring the accuracy of wave separation of filters in the optical device.
  • the optical device further includes one or more adjustment racks, and the adjustment racks can be connected to the inner wall of the shell.
  • the adjustment racks are connected to the inner wall of the shell by bonding.
  • the number of adjustment racks can be equal to the number of filters, or the number of adjustment racks can be less than the number of filters. If there is one adjustment rack, one of the multiple filters is installed on the adjustment rack. If there are multiple adjustment racks and they are equal to the number of filters, the multiple filters can be assembled with the multiple adjustment racks in a one-to-one correspondence. If there are multiple adjustment racks and they are less than the number of filters, some of the multiple filters can be assembled with the multiple adjustment racks in a one-to-one correspondence.
  • it can adapt to the different sizes of space in the shell.
  • the adjustment frame can manually adjust the installation angle.
  • the optical device further includes a driving member, such as a driving motor, which is in driving connection with the adjustment frame.
  • a driving member such as a driving motor
  • the distribution of multiple filters is also different.
  • the above-mentioned first filter group includes a first filter and a second filter arranged in sequence along the light incident direction of the first optical receiver.
  • the first filter is arranged opposite to the optical interface, and is used to reflect the optical signal of the first communication protocol among the optical signals of three different communication protocols contained in the optical signal introduced by the optical interface to the second filter, and allow the optical signal of the second communication protocol and the optical signal of the third communication protocol among the optical signals of three different communication protocols to be transmitted.
  • the second filter is used to reflect the optical signal reflected by the first filter to the first optical receiver.
  • the second filter group includes a third filter and a fourth filter arranged in sequence along the light incident direction of the second optical receiver.
  • the third filter is located on the transmission light path of the first filter, and is used to reflect the optical signal of the second communication protocol transmitted by the first filter to the fourth filter, and allow the optical signal of the third communication protocol to be transmitted; the fourth filter is used to reflect the optical signal reflected by the third filter to the second optical receiver.
  • the third filter group includes a fifth filter and a sixth filter arranged in sequence along the light incident direction of the third optical receiver.
  • the fifth filter is located on the transmission light path of the third filter and is used to reflect the optical signal of the third communication protocol transmitted by the third filter to the sixth filter.
  • the sixth filter is used to reflect the optical signal reflected by the fifth filter to the optical receiver.
  • the fifth filter, the third filter and the first filter are all located on the optical path between the optical emitting device and the optical interface, and are arranged in sequence along the light emitting direction of the optical emitting device.
  • the fifth filter, the third filter and the first filter are also used to allow the optical signal of the first communication protocol emitted by the first laser emitter, the optical signal of the second communication protocol emitted by the second laser emitter and the optical signal of the third communication protocol emitted by the third laser emitter to be combined and introduced into the optical interface.
  • the first filter group also includes a seventh filter located on the reflected light path of the second filter, the seventh filter is arranged opposite to the first light receiver, and is used to filter the impurity light signal in the light signal reflected by the second filter, and allow the filtered light signal to be transmitted to the first light receiver.
  • the second filter group also includes an eighth filter located on the reflected light path of the fourth filter, the eighth filter is arranged opposite to the second light receiver, and is used to filter the impurity light signal in the light signal reflected by the fourth filter, and allow the filtered light signal to be transmitted to the second light receiver.
  • the third filter group also includes a ninth filter located on the reflected light path of the sixth filter, the ninth filter is arranged opposite to the third light receiver, and is used to filter the impurity light signal in the light signal reflected by the sixth filter, and allow the filtered light signal to be transmitted to the third light receiver.
  • the optical device Based on the distribution of the above-mentioned filters, for an optical device with a small space in the housing, the optical device also includes three adjustment racks connected to the inner wall of the housing.
  • the three adjustment racks are: a first adjustment rack, a second adjustment rack, and a third adjustment rack.
  • the second filter is mounted on the first adjustment rack.
  • the fourth filter is mounted on the second adjustment rack.
  • the sixth filter is mounted on the third adjustment rack.
  • the first filter group includes a first filter, a second filter, and a third filter arranged in sequence along the light incident direction of the first optical receiver.
  • the first filter is arranged opposite to the optical interface, and the first filter is used to guide the optical interface into the three Optical signals of different communication protocols are reflected to the second filter.
  • the second filter is used to reflect the optical signal containing three different communication protocols to the third filter.
  • the third filter is used to reflect the optical signal of the second communication protocol and the optical signal of the third communication protocol among the optical signals containing three different communication protocols reflected by the second filter, and allow the optical signal of the first communication protocol among the optical signals containing three different communication protocols to be transmitted to the first optical receiver.
  • the second filter group includes a fourth filter located on the optical path from the third filter to the second optical receiver.
  • the fourth filter is used to reflect the optical signal of the third communication protocol among the optical signals reflected by the third filter, and allow the optical signal of the second communication protocol to be transmitted to the second optical receiver.
  • the third filter group includes a fifth filter located on the optical path from the fourth filter to the third optical receiver. The fifth filter is used to reflect the optical signal of the third communication protocol reflected by the fourth filter to the third optical receiver.
  • the first filter is located on the optical path between the optical emitting device and the optical interface.
  • the first filter is also used to allow the optical signal of the first communication protocol emitted by the first laser emitter, the optical signal of the second communication protocol emitted by the second laser emitter, and the optical signal of the third communication protocol emitted by the third laser emitter to be combined and introduced into the optical interface.
  • the first filter group also includes a sixth filter located on the transmission light path of the third filter, the sixth filter is arranged opposite to the first light receiver, and is used to filter the impurity light signals in the light signal transmitted by the third filter, and transmit the light signal to the first light receiver.
  • the second filter group also includes a seventh filter located on the transmission light path of the fourth filter, the seventh filter is arranged opposite to the second light receiver, and is used to filter the impurity light signals in the light signal transmitted by the fourth filter, and transmit the light signal to the second light receiver.
  • the third filter group also includes an eighth filter located on the reflection light path of the fifth filter, the eighth filter is arranged opposite to the third light receiver, and is used to filter the impurity light signals in the light signal reflected by the fifth filter, and transmit the light signal to the third light receiver.
  • the optical device Based on the distribution of the above-mentioned filters, for an optical device with a small space in the housing, the optical device also includes three adjustment racks connected to the inner wall of the housing.
  • the three adjustment racks are: a first adjustment rack, a second adjustment rack, and a third adjustment rack.
  • the second filter is mounted on the first adjustment rack.
  • the third filter is mounted on the second adjustment rack.
  • the fourth filter or the fifth filter is mounted on the third adjustment rack.
  • the optical path from the second laser emitter to the optical interface intersects with the optical path from the third laser emitter to the optical interface.
  • the above-mentioned multiple filters also include a tenth filter and an eleventh filter.
  • the tenth filter is arranged at the intersection of the optical path from the second laser emitter to the optical interface and the optical path from the third laser emitter to the optical interface.
  • the tenth filter is used to merge and export the optical signal of the second communication protocol emitted by the second laser emitter with the optical signal of the third communication protocol emitted by the third laser emitter.
  • the optical path from the first laser emitter to the optical interface intersects with the exit optical path of the tenth filter.
  • the eleventh filter is arranged at the intersection of the optical path from the first laser emitter to the optical interface and the exit optical path of the tenth filter.
  • the eleventh filter is used to merge the optical signal exported by the tenth filter with the optical signal of the first communication protocol emitted by the first laser emitter and import it into the optical interface.
  • the optical device further includes a first collimating lens and a second collimating lens, and the first collimating lens is disposed at the optical port of the optical interface close to the inner side of the housing.
  • the second collimating lens is disposed on the exit optical path of the first laser emitter, the second laser emitter, and the third laser emitter.
  • the second collimating lens is used to convert the optical signals emitted by the first laser emitter, the second laser emitter, and the third laser emitter from converging light to parallel light.
  • the first collimating lens is used to convert the converging light introduced from the optical interface into parallel light, and is also used to convert the parallel light emitted by the second collimating lens into converging light.
  • the optical device further includes an isolator, which is arranged on the outgoing optical paths of the first laser emitter, the second laser emitter, and the third laser emitter.
  • the number of isolators is one, and the isolator is arranged at the intersection of the outgoing optical paths of the first laser emitter, the second laser emitter, and the third laser emitter.
  • the isolator is located between the outgoing optical path of the eleventh filter and the second collimating lens. The isolator can simultaneously prevent the first laser emitter, the second laser emitter, and the third laser emitter from crosstalk of optical signals.
  • the number of isolators can be three, and the three isolators are respectively arranged on the outgoing optical paths of the first laser emitter, the second laser emitter, and the third laser emitter.
  • the three isolators can respectively and individually prevent the corresponding laser emitters from crosstalk of optical signals.
  • the first laser emitter, the second laser emitter and the third laser emitter in the above-mentioned light emitting device are all packaged separately and distributed at intervals on the housing.
  • any two of the first laser emitter, the second laser emitter and the third laser emitter in the above-mentioned light emitting device are integrated and packaged into an integral structure, and the remaining one is packaged separately.
  • the light emitting device is small in size, which is conducive to the miniaturization of optical devices.
  • the first laser emitter, the second laser emitter and the third laser emitter in the above light emitting device are integrated and packaged into an integral structure.
  • the light emitting device is small in size, which is conducive to the miniaturization of optical devices.
  • the first optical receiver, the second optical receiver and the third optical receiver are all separately packaged and arranged. And they are distributed on the shell at intervals.
  • any two of the first optical receiver, the second optical receiver and the third optical receiver in the optical receiving device are integrated and packaged into an integral structure, and the remaining one is packaged separately.
  • the optical receiving device is small in size, which is conducive to the miniaturization of optical devices.
  • the first optical receiver, the second optical receiver and the third optical receiver in the optical receiving device are integrated and packaged into an integral structure.
  • the optical receiving device is small in size, which is conducive to the miniaturization of optical devices.
  • the first laser emitter, the second laser emitter, the third laser emitter, the first optical receiver, the second optical receiver and the third optical receiver may be packaged individually or integrated, and the packaging form may be coaxial packaging or box packaging.
  • the embodiment of the present application also includes an optical communication device, which can be a PON device, such as an optical line terminal device, an optical network unit device, an optical network device, etc., or an optical module.
  • the optical communication device includes a circuit board and the optical device described in the above embodiment, and the optical device is electrically connected to the circuit board. Since the optical device in the optical communication device of the embodiment of the present application has the same structure as the optical device described in the above embodiment, both can solve the same technical problems and obtain the same technical effects, which will not be repeated here.
  • an embodiment of the present application includes an assembly method for an optical device of the above embodiment.
  • the assembly method specifically includes the following steps: installing a plurality of filters at preset reference positions in a housing; wherein at least one filter is fixedly mounted on an adjustment frame, and the adjustment frame is movably connected to the housing.
  • the embodiments of the present application also include another method for assembling the optical device of the above-mentioned embodiment.
  • the assembly method specifically includes the following steps: dispensing glue on the mounting surface in the housing according to the preset mounting position of the filter in the housing. Lay the side of the filter on the glue layer on the mounting surface, and use the edge line or corner of the filter as a reference for installation to adjust the installation angle of the filter until the preset installation angle is reached. Cure the glue layer between the side of the filter and the mounting surface.
  • the embodiments of the present application also include another method for assembling the optical device of the above-mentioned embodiments.
  • the assembly method specifically includes the following steps: movably installing the filter and the Z-BLOCK filter assembly at a preset reference position in the housing. Input the detection light into the optical interface, and adjust the installation angle of the Z-BLOCK filter assembly in the housing until the angle of the detection light beam derived from the filter and the Z-BLOCK filter assembly reaches a preset angle.
  • the Z-BLOCK filter assembly is fixedly connected to the housing.
  • FIG1 is a schematic diagram of the structure of an optical communication device in an embodiment of the present application as an optical modem
  • FIG2 is a schematic diagram of the structure of a circuit board assembly in an optical communication device according to an embodiment of the present application
  • FIG3 is a schematic diagram of the structure of an optical device having a laser transmitter and a light receiver
  • FIG4 is a schematic diagram of the structure of an optical device having two laser transmitters and two optical receivers
  • FIG5 is a schematic cross-sectional view of an optical device according to an embodiment of the present application.
  • FIG6 is a schematic diagram of the three-dimensional structure of a housing in an optical device according to an embodiment of the present application.
  • FIG7 is a schematic diagram of a partial structure of an optical device in which a filter is mounted on a fixing frame;
  • FIG8 is a cross-sectional schematic diagram of a housing of an optical device according to an embodiment of the present application having a mounting surface
  • FIG9 is a schematic diagram of the three-dimensional structure of a filter in an optical device according to an embodiment of the present application.
  • FIG10 is a schematic diagram of the structure of the bonding between the filter and the mounting surface of the housing in the optical device according to the embodiment of the present application;
  • FIG11 is a cross-sectional schematic diagram of an optical device with a Z-block filter assembly according to an embodiment of the present application.
  • FIG12 is a schematic diagram of the three-dimensional structure of a Z-block filter assembly in an optical device according to an embodiment of the present application.
  • FIG. 13 is a schematic structural diagram of the assembly of a filter and an adjustment frame in an optical device according to an embodiment of the present application at a first viewing angle
  • FIG14 is a schematic structural diagram of the assembly of the filter and the adjustment frame in the optical device according to the embodiment of the present application at a second viewing angle;
  • FIG15 is a diagram showing the angle adjustment of the filter in the optical device according to an embodiment of the present application.
  • FIG16 is a schematic diagram of the assembly of a filter and a driver in an optical device according to an embodiment of the present application.
  • 17 is a schematic diagram of the optical path between the optical receiving device and the optical interface in the optical device of Example 1;
  • FIG18 is a schematic diagram of the optical path between the light emitting device and the optical interface in the optical device of Example 1;
  • FIG19 is a schematic diagram of an optical path between an optical receiving device and an optical interface in an optical device having a stray light filtering function in Example 1;
  • FIG20 is a schematic diagram of the optical path between the light emitting device and the optical interface in the optical device with stray light filtering function in Example 1;
  • FIG21 is a schematic diagram of the structure of an optical device of Example 1 having three adjustment racks;
  • FIG22 is a schematic diagram of the structure of the housing of the optical device of Example 1 having a mounting surface
  • FIG23 is a schematic diagram of the structure of an optical device of Example 2.
  • FIG24 is a schematic diagram of the structure of an optical device of Example 3.
  • FIG25 is a schematic diagram of an optical path between an optical receiving device and an optical interface in an optical device of Example 4.
  • FIG26 is a schematic diagram of the optical path between the optical emitting device and the optical interface in the optical device of Example 4;
  • FIG27 is a schematic diagram of an optical path between an optical receiving device and an optical interface in an optical device having a stray light filtering function in Example 4;
  • FIG28 is a schematic diagram of the optical path between the light emitting device and the optical interface in the optical device with stray light filtering function of Example 4;
  • FIG29 is a schematic diagram of the structure of an optical device of Example 4 having three adjustment racks;
  • FIG30 is a schematic diagram of the structure of an optical device in Example 5.
  • FIG31 is a schematic diagram of the structure of an optical device of Example 6;
  • FIG32 is a schematic diagram of the structure of an optical device of Example 7.
  • FIG33 is a schematic diagram of the structure of an optical device of Example 8.
  • FIG34 is a schematic diagram of the structure of an optical device of Example 9;
  • FIG35 is a schematic diagram of the structure of the optical device of Example 10.
  • first”, “second”, etc. are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features.
  • a feature defined as “first”, “second”, etc. may explicitly or implicitly include one or more of the feature.
  • “plurality” means two or more.
  • directional terms such as “up”, “down”, “left”, “right”, “horizontal” and “vertical” are defined relative to the orientation of the components in the drawings. It should be understood that these directional terms are relative concepts. They are used for relative description and clarification, and they may change accordingly according to the changes in the orientation of the components in the drawings.
  • connection should be understood in a broad sense.
  • connection can refer to the connection of mechanical structure or physical structure.
  • it can be a fixed connection, a detachable connection, or an integrated connection; it can be directly connected or indirectly connected through an intermediate medium.
  • connection can also be understood as the physical contact and electrical conduction of components, and it can also be understood as the form in which different components in the circuit structure are connected through physical lines such as PCB copper foil or wires that can transmit electrical signals.
  • the embodiment of the present application includes an optical communication device, which may be a PON device, such as an optical line terminal (OLT) device, an optical network unit (ONU) device, an optical network device (ONT), or an optical transceiver.
  • the optical network device may be an optical modem.
  • the optical module may be applied to an optical line terminal device, or to a communication network device such as a router.
  • the optical module may be an onboard optical module or a pluggable optical module.
  • FIG1 shows a solution in which the optical communication device is an optical modem.
  • the optical modem 1000 includes a circuit board 100 and an optical device 200 as shown in FIG2 , and the optical device 200 is electrically connected to the circuit board 100.
  • the optical device 200 can be an optical transceiver device.
  • the circuit board 100 also has other circuits, chips, or chip packaging structures, which are not described one by one here.
  • the optical device 200 can transmit signals with other circuits, chips, or chip packaging structures on the circuit board 100.
  • the optical device 200 may include a laser transmitter 20 and an optical receiver 30.
  • the laser transmitter 20 is used to transmit an optical signal of the GPON protocol.
  • the optical receiver 30 is used to receive an optical signal of the GPON protocol.
  • the optical device 200 may include two laser transmitters 20a and 20b, and two optical receivers 30a and 30b.
  • the two optical receivers 30a and 30b are respectively used to receive optical signals of two different communication protocols.
  • the two laser transmitters 20a and 20b are respectively used to send optical signals of two different communication protocols.
  • the laser transmitter 20a is used to transmit optical signals of the GPON protocol.
  • the laser transmitter 20b is used to send optical signals of the 10G PON protocol.
  • the optical receiver 30a is used to receive optical signals of the GPON protocol.
  • the optical receiver 30b is used to receive optical signals of the 10G PON protocol. Therefore, the optical device 200 is a combo PON device, which can meet the needs of simultaneously transmitting and receiving GPON and 10G PON optical signals.
  • the optical device 200 includes a housing 10, an optical interface 1, an optical transmitting device 2 and an optical receiving device 3.
  • the housing 10 can be used as a supporting structure.
  • the optical interface 1, the light emitting device 2 and the light receiving device 3 can all be installed on the housing 10.
  • the optical port of the optical interface 1, the light outlet of the light emitting device 2 and the light inlet of the light receiving device 3 are all located in the housing 10.
  • the housing 10 shown in Fig. 6 is in the shape of a cuboid.
  • the housing 10 may also be made into other shapes that are convenient for installing the optical interface 1, the light emitting device 2 and the light receiving device 3, and this application does not limit this.
  • the above-mentioned optical interface 1 can introduce an external optical signal.
  • the optical signal can be a detection optical signal, which is used for assembly and debugging of the optical device 200.
  • the optical signal can also be a modulated optical signal carrying transmission data.
  • the optical interface 1 can have a coaxial optical fiber.
  • the coaxial optical fiber can introduce the optical signal into the optical device 200.
  • the optical interface 1 can also transmit the optical signal emitted by the optical emitting device 2.
  • the light emitting device 2 comprises a first laser emitter 21, a second laser emitter 22 and a third laser emitter 23.
  • the first laser emitter 21, the second laser emitter 22 and the third laser emitter 23 are used to emit optical signals of three different communication protocols respectively.
  • the optical receiving device 3 comprises a first optical receiver 31, a second optical receiver 32 and a third optical receiver 33.
  • the first optical receiver 31, the second optical receiver 32 and the third optical receiver 33 are used to receive optical signals of three different communication protocols.
  • the housing 10 further includes an optical film assembly 4 as shown in FIG5 , and the optical film assembly 4 is installed in the housing 10.
  • the optical film assembly 4 includes a plurality of filters 41, and the plurality of filters 41 can be distributed at intervals in the housing 10.
  • the plurality of filters 41 includes a first filter group 41a, a second filter group 41b, a third filter group 41c, and a fourth filter group 41d.
  • the first filter group 41a is located on the receiving optical path of the first optical receiver 31.
  • the first filter group 41a is used to import the optical signal of the first communication protocol among the optical signals of the three different communication protocols imported from the optical interface 1 into the first optical receiver 31, and allow the optical signal of the second communication protocol and the optical signal of the third communication protocol to be exported among the optical signals of the three different communication protocols.
  • the second filter group 41b is located on the optical path from the first filter group 41a to the second optical receiver 32.
  • the second filter group 41b is used to guide the optical signal of one communication protocol derived from the first filter group 41a to the second optical receiver 32, and to allow the optical signal of another communication protocol derived from the first filter group 41a to be derived.
  • the third filter group 41c is located on the optical path from the second filter group 41b to the third optical receiver 33.
  • the third filter group 41c is used to guide the optical signal transmitted from the second filter group 41b to the third optical receiver 33.
  • the fourth filter group 41d is located on the outgoing optical paths of the first laser emitter 21, the second laser emitter 22, and the third laser emitter 23.
  • the fourth filter group 41d is used to combine the optical signal of the first communication protocol emitted by the first laser emitter 21, the optical signal of the second communication protocol emitted by the second laser emitter 22, and the optical signal of the third communication protocol emitted by the third laser emitter 23 and introduce them into the optical interface 1.
  • the optical device 200 of the embodiment of the present application can separate the optical signals of three different communication protocols introduced into the optical interface 1 through the first filter group 41a, the second filter group 41b and the third filter group 41c in sequence, and introduce them into the first optical receiver 31, the second optical receiver 32 and the third optical receiver 33 respectively. It can also merge the optical signals of three different communication protocols emitted by the first laser emitter 21, the second laser emitter 22 and the third laser emitter 23 through the fourth filter group 41d, and transmit them into the optical interface 1.
  • the first communication protocol includes receiving a modulated optical signal with a rate of 10Gbps and a wavelength of 1260-1280nm, converting the received modulated electrical signal with a rate of 10Gbps into a modulated optical signal with a wavelength of 1575-1580nm for transmission.
  • the second communication protocol includes receiving a modulated optical signal with a rate of 50Gbps and a wavelength of 1284-1288nm, converting the received modulated electrical signal with a rate of 50Gbps into a modulated optical signal with a wavelength of 1340-1344nm for transmission.
  • the third communication protocol includes receiving a modulated optical signal with a rate of 1.25Gbps and a wavelength of 1290-1330nm, converting the received modulated electrical signal with a rate of 2.5Gbps into a modulated optical signal with a wavelength of The modulated optical signal of 1480 ⁇ 1490nm is transmitted.
  • the first filter group 41a can separate the combined optical signal imported from the optical interface 1, which includes a modulated optical signal with a rate of 1.25 Gbps and a wavelength of 1290-1330 nm, a modulated optical signal with a rate of 10 Gbps and a wavelength of 1260-1280 nm, and a modulated optical signal with a rate of 50 Gbps and a wavelength of 1284-1288 nm, and import the modulated optical signal with a rate of 10 Gbps and a wavelength of 1260-1280 nm into the first optical receiver 31, and export the modulated optical signal with a rate of 1.25 Gbps and a wavelength of 1290-1330 nm and the modulated optical signal with a rate of 50 Gbps and a wavelength of 1284-1288 nm.
  • the second filter group 41b can introduce the modulated optical signal with a rate of 50 Gbps and a wavelength of 1284-1288 nm emitted by the first filter group 41a into the second optical receiver 32, and export the modulated optical signal with a rate of 1.25 Gbps and a wavelength of 1290-1330 nm.
  • the third filter group 41c can introduce the modulated optical signal with a rate of 1.25 Gbps and a wavelength of 1290-1330 nm emitted from the second filter group 41b into the third optical receiver 33.
  • the first laser emitter 21 is used to convert the received modulated electrical signal at a rate of 10 Gbps into a modulated optical signal emitting a wavelength of 1575 to 1580 nm.
  • the second laser emitter 22 is used to convert the received modulated electrical signal at a rate of 50 Gbps into a modulated optical signal emitting a wavelength of 1340 to 1344 nm.
  • the third laser emitter 23 is used to convert the received modulated electrical signal at a rate of 2.5 Gbps into a modulated optical signal emitting a wavelength of 1480 to 1490 nm.
  • the fourth filter group 41d can combine the modulated optical signal at a wavelength of 1575 to 1580 nm emitted by the first laser emitter 21, the modulated optical signal at a wavelength of 1340 to 1344 nm emitted by the second laser emitter 22, and the modulated optical signal at a wavelength of 1480 to 1490 nm emitted by the third laser emitter 23 and import them into the optical interface 1. Therefore, the first laser transmitter 21 and the first optical receiver 31 form a pair of transceiver components for 10G PON, the second laser transmitter 22 and the second optical receiver 32 form a pair of transceiver components for 50G PON, and the third laser transmitter 22 and the second optical receiver 32 form a pair of transceiver components for GPON.
  • the optical device 200 of the embodiment of the present application includes three groups of transceiver components, which can simultaneously meet the requirements of simultaneous transceiver of GPON, 10G PON, and 50G PON optical signals.
  • optical signals of the above three different communication protocols emitted by the first laser emitter 21, the second laser emitter 22 and the third laser emitter 23, and the optical signals of the above three different communication protocols received by the first optical receiver 31, the second optical receiver 32 and the third optical receiver 33 are only examples.
  • the first laser emitter 21, the second laser emitter 22 and the third laser emitter 23 can also emit optical signals of other communication protocols
  • the first optical receiver 31, the second optical receiver 32 and the third optical receiver 33 can also receive optical signals of other communication protocols
  • the optical device 200 of the embodiment of the present application includes three groups of transceiver components that can respectively transmit and receive optical signals of three different communication protocols.
  • the first laser emitter 21, the second laser emitter 22 and the third laser emitter 23 in the light emitting device 2 can be individually packaged and spaced apart on the housing 10.
  • any two of the first laser emitter 21, the second laser emitter 22 and the third laser emitter 23 are integrated and packaged as an integral structure, and the remaining one of the first laser emitter 21, the second laser emitter 22 and the third laser emitter 23 is individually packaged, which can improve the integration of the light emitting device 2, reduce the volume of the light emitting device 2, and facilitate the miniaturization of the optical device 200.
  • a laser emitter that is individually packaged and the other two laser emitters that are integrated and packaged are spaced apart on the housing 10, which can facilitate the installation of multiple filters 41 and achieve optical path separation.
  • the first laser emitter 21 , the second laser emitter 22 and the third laser emitter 23 are integrated and packaged into an integral structure, which further improves the integration of the light emitting device 2 , reduces the volume of the light emitting device 2 , and is conducive to the miniaturization of the optical device 200 .
  • the structures of the first light receiver 31, the second light receiver 32 and the third light receiver 33 in the light receiving device 3 may be similar to the structures of the first laser emitter 21, the second laser emitter 22 and the third laser emitter 23 in the light emitting device 2 in the above embodiment.
  • the first optical receiver 31, the second optical receiver 32, and the third optical receiver 33 in the optical receiving device 3 can be packaged separately and spaced apart on the housing 10.
  • any two of the first optical receiver 31, the second optical receiver 32, and the third optical receiver 33 are packaged as an integrated structure, and the remaining one of the first optical receiver 31, the second optical receiver 32, and the third optical receiver 33 is packaged separately, which improves the integration of the optical receiving device 3, reduces the volume of the optical receiving device 3, and is conducive to the miniaturization of the optical device 200.
  • a separately packaged optical receiver and the other two integrated packaged optical receivers are spaced apart on the housing 10 to facilitate the installation of multiple filters 41 and achieve optical path separation.
  • the first optical receiver 31, the second optical receiver 32, and the third optical receiver 33 are packaged as an integrated structure, which further improves the integration of the optical emitting device 2, reduces the volume of the optical emitting device 2, and is conducive to the miniaturization of the optical device 200.
  • the separate packaging form or integrated packaging form of the first laser emitter 21, the second laser emitter 22, and the third laser emitter 23 can be coaxial (transistor outline, TO) packaging or box (BOX) packaging, and the present application does not limit this.
  • the separate packaging form or integrated packaging form of the first light receiver 31, the second light receiver 32, and the third light receiver 33 can be coaxial packaging or box packaging, and the present application does not limit this.
  • part of the filter 410 can be for example, all or part of the filters 410 in the fourth filter group 41d are integrated with two or three laser emitters in the same tube shell.
  • part of the filters 410 such as all or part of the filters 410 in the first filter group 41a, the second filter group 41b or the third filter group 41c, can be integrated with the two or three optical receivers in the same tube shell.
  • the optical film assembly 4 of the optical device 200 of the present application may also include an isolator 42, a collimating lens 43 and other devices as shown in FIG5 , and the present application does not limit this.
  • the isolator 42 is used to reduce the crosstalk problem of the optical signal to the light emitting device 2.
  • the collimating lens 43 is used to convert the converged light into parallel light or convert the parallel light into converged light.
  • the fixing frames 101 can be integrally formed with the housing 10.
  • the fixing frame 101 has a notch matching the size and shape of the filter 410.
  • the periphery of the entire filter 410 is connected to the notch of the fixing frame 101.
  • the positions of the multiple filters 41 in the housing 10 are fixed and cannot be adjusted.
  • the preset installation position and angle of the filter 410 in the housing 10 deviate, resulting in changes in the wave separation curve of one or more filters, and inaccurate wave separation of the optical signal.
  • filters 410 with smaller spacing filters 410 with installation errors will result in poor accuracy in optical path splitting, seriously affecting the accuracy of simultaneous transmission and reception of GPON, 10G PON, and 50G PON optical signals by the optical device 200.
  • a mounting surface 102 is formed in the housing 10.
  • the mounting surface 102 shown in FIG8 is parallel to the XZ plane.
  • the side of the filter 410 can be connected to the mounting surface 102 by gluing.
  • the filter 410 shown in FIG9 is a rectangular parallelepiped, and the filter 410 has four side surfaces 4101.
  • One side surface 4101a of the filter 410 is connected to the mounting surface 102 by gluing, as shown in FIG10.
  • the shape of the filter 410 can also be other shapes, and the present application does not limit this.
  • the filter 410 When installing the filter 410, you can first dispense glue (specifically, epoxy glue) on the mounting surface 102 of the housing 10 corresponding to the preset mounting position of the filter 410. Afterwards, during the mounting process, use the edge line or corner of the filter 410 as a mounting reference, and fine-tune the mounting position and mounting angle of the filter 410 (rotate the filter 410 as shown in Figure 10) until the preset mounting position and the preset mounting angle are reached. It is also possible to combine the active mounting method (i.e., input the detection light through the optical interface 1, and use the detection device to detect whether the detection light passing through the filter 410 reaches the target light output angle) to determine whether the filter 410 reaches the preset mounting position and the preset mounting angle. Then cure the glue layer so that the filter 410 is fixed on the housing 10. Therefore, multiple filters 41 can be accurately installed in the housing 10. Thereby, the assembly error is reduced and the wave separation accuracy of multiple filters 41 is ensured.
  • glue specifically, epoxy glue
  • the mounting surface 102 in the shell 10 can be one, or two or more, so that the multiple filter plates 41 arranged at intervals can be fixed on the shell 10 using the above-mentioned side mounting method, thereby ensuring that the installation accuracy of the multiple filter plates 41 is high.
  • the optical device 200 further includes a Z-block filter assembly 40.
  • the Z-block filter assembly 40 includes one or more filters among the above-mentioned multiple filters 41, and an adjustment support 401.
  • the Z-block filter assembly 40 includes two filters 410 among the above-mentioned multiple filters 41, and the two filters 410 are both arranged on the adjustment support 401.
  • the two filters 410 can be fixed to the adjustment support 401 by bonding.
  • the adjustment support 401 can also be fixed to the housing 10 by bonding.
  • the adjustment support 401 can be an adjustment bracket or an adjustment prism, and the present application does not limit this.
  • the volume of the adjustment support 401 is limited and the distance between the two filters 410 is small, it is suitable for the scenario where two or more laser emitters are integrated together in the laser emitting device 2, or two or more optical receivers are integrated together in the optical receiving device 3.
  • the first optical receiver 31 and the second optical receiver 32 in the optical receiving device 3 shown in FIG11 are integrated into an integrated structure.
  • the bonding and assembly process of the adjustment prism and the housing 10 is the same as the bonding and assembly process of the side of the filter 410 being mounted on the mounting surface 102 of the housing 10 in the above-mentioned embodiment. That is, the adjustment prism is pre-installed in the housing 10 by means of an adhesive material (such as epoxy glue), and then the edge line or corner of the adjustment prism itself is used as a mounting reference, and the adjustment prism is fine-tuned to change the installation position and installation angle of the filter 410 until the preset installation position and the preset installation angle are reached.
  • an adhesive material such as epoxy glue
  • the active mounting method i.e., the optical interface 1 inputs the detection light, and the detection device detects whether the detection light passing through the filter 410 reaches the target light output angle
  • the detection device detects whether the detection light passing through the filter 410 reaches the preset installation position and the preset installation angle. Then the adhesive layer is cured so that the filter 410 is fixed on the housing 10. Therefore, the filter 410 in the Z-block filter assembly 40 can also be accurately installed, reducing the assembly error and ensuring the accuracy of the wave separation of the filter 410.
  • the Z-block filter assembly 40 may also be provided with other optical films, such as a reflective film or a reflective mirror, according to the needs of the optical path.
  • the reflective film can be directly mounted on the adjustment prism, and the reflective mirror can be directly mounted on the adjustment bracket.
  • the adjustment support 401 shown in FIG. 12 is an adjustment prism, and a reflective film 402 is mounted on the adjustment prism 401.
  • the embodiment of the present application does not limit the number of Z-block filter assemblies 40 in the optical device 200, and it can be one, two, or more than two. superior.
  • the optical device 200 also includes an adjustment frame 5 as shown in Figure 13, and the above-mentioned filter 410 can be installed on the adjustment frame 5, such as the filter 410 is fixed on the adjustment frame 5 by bonding.
  • the adjustment frame 5 is connected to the inner wall of the housing 10.
  • the filter 410 can be fixed on the adjustment frame 5 first.
  • the adjustment frame 5 is movably connected to the housing 10 (such as rotatably connected).
  • the adjustment frame 5 includes a mounting bracket 51 and an adjustment base 52, and the filter 410 is installed on the mounting bracket 51.
  • the adjustment base 52 can be cylindrical, and a matching hole is provided on the housing 10, and the adjustment base 52 can be rotatably installed in the mounting hole.
  • the mounting bracket 51 is fixedly connected to one side end face of the adjustment base 52, and the other end face of the adjustment base 52 is formed with an adjustment groove 521 as shown in Figure 14.
  • the adjustment tool can be a wrench with a shape matching the adjustment slot 521. Insert the wrench into the adjustment slot 521 to apply a rotational force so that the adjustment base 52 rotates in the matching hole to adjust the installation angle of the filter 410.
  • the optical interface 1 is input with a detection light, and the detection device can detect whether the detection light passing through the filter 410 reaches the preset light output angle ⁇ . Thereby, it is determined whether the filter 410 reaches the preset installation angle to ensure the installation accuracy of the filter 410 and the accuracy of the wave separation.
  • the filter 410 is fixed to the adjustment frame 5 by, for example, bonding.
  • the optical device 200 further includes a driving member 6 as shown in FIG16, and the driving member 6 is connected to the adjustment frame 5 by transmission.
  • the driving member 6 can be a driving motor.
  • the optical device 200 may include a plurality of adjustment racks 5, and the plurality of filters 41 are respectively mounted on the plurality of adjustment racks 5.
  • the number of adjustment racks 5 and filters 410 in the optical device 200 is the same.
  • the plurality of filters 41 are mounted on the plurality of adjustment racks 5 in a one-to-one correspondence.
  • the number of adjustment racks 5 in the optical device 200 is less than the number of filters 410. That is, only some of the filters 410 in the above-mentioned multiple filters 41 can be installed on the adjustment rack 5 accordingly. For example, some of the filters 410 in the multiple filters 41 have the function of reflecting the optical signal to other filters 410, and the filter 410 that receives the reflected optical signal can be selected to be installed on the adjustment rack 5.
  • the filter 410 that reflects the optical signal has an installation error
  • the filter 410 that receives the optical signal with the light output angle error will not further amplify the error, thereby reducing the influence of the installation error on the accuracy of the wavelength division.
  • the structure and distribution of the light emitting device 2 , the light receiving device 3 , and the optical film assembly 4 in the optical device 200 are described below with reference to several specific examples.
  • the optical device 200 of this example includes a housing 10, on which an optical interface 1, an optical emitting device 2 and an optical receiving device 3 are provided.
  • the optical emitting device 2 includes a first laser emitter 21, a second laser emitter 22 and a third laser emitter 23, which are all individually packaged.
  • the optical receiving device 3 includes a first optical receiver 31, a second optical receiver 32 and a third optical receiver 33, which are all individually packaged.
  • the first laser emitter 21, the second laser emitter 22 and the third laser emitter 23, the first optical receiver 31, the second optical receiver 32 and the third optical receiver 33 shown in FIG. 17 are all coaxially packaged.
  • the first laser emitter 21, the second laser emitter 22, the third laser emitter 23, the first optical receiver 31, the second optical receiver 32 and the third optical receiver 33 are arranged at intervals on the housing 10. Moreover, compared with the optical emitting device 2, the first optical receiver 31, the second optical receiver 32 and the third optical receiver 33 in the optical receiving device 3 are located in a part of the housing 10 close to the optical interface 1.
  • the first laser transmitter 21, the second laser transmitter 22 and the third laser transmitter 23 are used to transmit optical signals of the first communication protocol, the second communication protocol and the third communication protocol respectively.
  • the first optical receiver 31, the second optical receiver 32 and the third optical receiver 33 are used to receive optical signals of the first communication protocol, the second communication protocol and the third communication protocol respectively.
  • one of the first laser emitter 21, the second laser emitter 22 and the third laser emitter 23 is arranged opposite to the optical interface 1.
  • the second laser emitter 22 shown in FIG. 17 is arranged opposite to the optical interface 1.
  • the first laser emitter 21, the third laser emitter 23, the first optical receiver 31, the second optical receiver 32 and the third optical receiver 33 are located between the first laser emitter 21 and the optical interface 1.
  • the third laser emitter 23, the first laser emitter 21, the third optical receiver 33, the second optical receiver 32 and the first optical receiver 31 are arranged in sequence from far to near from the optical interface 1.
  • the optical film assembly 4 is installed in the housing 10 .
  • the optical film assembly 4 includes a plurality of filters 41 .
  • the plurality of filters 41 include a first filter group 41 a , a second filter group 41 b , a third filter group 41 c and a fourth filter group 41 d .
  • the first filter group 41a includes a first filter 411 and a second filter 412.
  • the first filter 411 and the second filter 412 are both located on the optical path of the optical signal of the first communication protocol received by the first optical receiver 31, and are sequentially arranged along the light incident direction of the first optical receiver 31.
  • the first filter 411 is arranged relative to the optical interface 1.
  • the first filter 411 can transmit the first combined optical signal (including the first The optical signal of the first communication protocol in the first combined optical signal emitted by the optical interface 1 is separated from the optical signal of the second communication protocol and the optical signal of the third communication protocol.
  • the first filter 411 can reflect the optical signal of the first communication protocol in the first combined optical signal emitted by the optical interface 1 to the second filter 412, and allow the optical signal of the second communication protocol and the optical signal of the third communication protocol in the first combined optical signal to be transmitted.
  • the second filter 412 can reflect the optical signal of the second communication protocol reflected by the first filter 411 to the first optical receiver 31.
  • the second filter group 41b includes a third filter 413 and a fourth filter 414, and the third filter 413 and the fourth filter 414 are both located on the optical path of the second optical receiver 32 receiving the optical signal of the second communication protocol, and are sequentially arranged along the light incident direction of the second optical receiver 32.
  • the third filter 413 is located on the transmission optical path of the first filter 411.
  • the third filter 413 is used to separate the optical signal of the second communication protocol from the optical signal of the third communication protocol in the second combined optical signal (including the optical signal of the second communication protocol and the optical signal of the third communication protocol) after transmission through the first filter 411.
  • the third filter 413 allows the optical signal of the third communication protocol in the second combined signal to be transmitted, and reflects the optical signal of the second communication protocol to the fourth filter 414.
  • the fourth filter 414 can reflect the optical signal of the second communication protocol reflected by the third filter 413 to the second optical receiver 32.
  • the third filter group 41b includes a fifth filter 415 and a sixth filter 416, which are both located on the optical path of the optical signal of the third communication protocol received by the third optical receiver 33, and are sequentially arranged along the light incident direction of the third optical receiver 33.
  • the fifth filter 415 is located on the transmission optical path of the third filter 413.
  • the fifth filter 415 is used to reflect the optical signal of the third communication protocol transmitted by the third filter 413 to the sixth filter 416.
  • the sixth filter 416 can reflect the optical signal of the third communication protocol reflected by the fifth filter 415 to the third optical receiver 33.
  • the first filter 411 is located at the position where the light paths of the three light receivers overlap
  • the third filter 413 is located at the position where the light paths of the two light receivers overlap. Therefore, the first light receiver 31, the second light receiver 32, and the third light receiver 33 have little influence on each other.
  • the second filter 412 will not affect the installation of the third filter 413 and the fourth filter 414.
  • the distribution method of the above-mentioned multiple filters 41 is suitable for the optical device 200 in which the first light receiver 31, the second light receiver 32, and the third light receiver 33 are all individually packaged and have a large spacing.
  • the first filter group 41a further includes a seventh filter 417, which is located on the reflection optical path of the second filter 412 and is arranged opposite to the first optical receiver 31.
  • the seventh filter 417 can filter the impurity optical signal in the optical signal of the first communication protocol reflected by the second filter 412, and allow the filtered optical signal of the first communication protocol to be transmitted to the first optical receiver 31.
  • the second filter group 41b further includes an eighth filter 418, which is located on the reflected light path of the fourth filter 414 and is arranged opposite to the second optical receiver 32.
  • the eighth filter 418 can filter the impurity optical signal in the optical signal of the second communication protocol reflected by the fourth filter 414, and allow the filtered optical signal of the second communication protocol to be transmitted to the second optical receiver 32.
  • the third filter group 41c further includes a ninth filter 419, which is located on the reflection light path of the sixth filter 416 and is arranged opposite to the third optical receiver 33.
  • the ninth filter 419 can filter the impurity optical signal in the optical signal of the third communication protocol reflected by the sixth filter 416, and allow the filtered optical signal of the third communication protocol to be transmitted to the third optical receiver 33.
  • the impurity optical signal can be prevented from entering the first optical receiver 31, the second optical receiver 32 and the third optical receiver 33.
  • the optical path from the second laser emitter 22 to the optical interface 10 intersects with the optical path from the third laser emitter 23 to the optical interface 10.
  • the fourth filter group 41b includes a tenth filter 420 and an eleventh filter 421, and the tenth filter 420 is located at the optical path from the second laser emitter 22 to the optical interface 10 and the optical path from the third laser emitter 23 to the optical interface 10.
  • the optical path from the first laser emitter 21 to the optical interface 10 intersects with the outgoing optical path of the tenth filter 420.
  • the eleventh filter 421 is located at the intersection of the optical path from the first laser emitter 21 to the optical interface 10 and the outgoing optical path of the tenth filter 420.
  • the tenth filter 420 combines the optical signal of the second communication protocol emitted by the second laser emitter 22 and the optical signal of the third communication protocol emitted by the third laser emitter 23 into a third combined optical signal, and allows the third combined optical signal to be transmitted to the eleventh filter 421.
  • the eleventh filter 421 combines the optical signal of the first communication protocol emitted by the first laser emitter 2 and the third combined optical signal into a fourth combined optical signal, and transmits it to the optical interface 1.
  • the first filter 411, the third filter 413 and the fifth filter 415 shown in FIG20 are all located on the light-emitting optical paths of the first laser emitter 21, the second laser emitter 22 and the third laser emitter 23.
  • the fifth filter 415, the third filter 413 and the first filter 411 are sequentially located on the light-emitting optical path of the light-emitting device 2.
  • the fifth filter 415, the third filter 413 and the first filter 411 are also used for The optical signal of the first communication protocol emitted by the first laser emitter 21, the optical signal of the second communication protocol emitted by the second laser emitter 22, and the optical signal of the third communication protocol emitted by the third laser emitter 23 are allowed to be combined and transmitted to the optical interface 1. Therefore, the fourth combined optical signal derived from the eleventh filter 421 can be transmitted to the optical interface 1 through the fifth filter 415, the third filter 413, and the first filter 411 in sequence.
  • the optical device 200 may include eleven adjustment racks 5, and the eleven filters 410 may be arranged on the eleven adjustment racks 5 in a one-to-one correspondence.
  • the eleven adjustment racks 5 are connected to the inner wall of the housing 10.
  • the installation position and installation angle of the filter 410 are adjusted by adjusting the installation position and installation angle of the adjustment racks 5.
  • the eleven filters 41 can be accurately installed, the assembly error is reduced, and the accuracy of the wave separation is ensured.
  • the optical device 200 of this example further includes a plurality of driving members 6, and the plurality of adjustment frames 5 may also be in transmission connection with one or more driving members 6.
  • the driving member 6 is specifically a driving motor, so as to realize automatic adjustment of the installation angle of the filter 410.
  • the optical device 200 may include three adjustment racks 5, which are respectively a first adjustment rack 501, a second adjustment rack 502, and a third adjustment rack 503.
  • the second filter 412 is mounted on the first adjustment rack 501
  • the fourth filter 414 is mounted on the second adjustment rack 502
  • the sixth filter 416 is mounted on the third adjustment rack 503.
  • the installation error of the multiple filters 41 can be reduced to less than ⁇ 0.3°, thereby ensuring the wavelength separation accuracy of the multiple filters 41 in the optical device 200 .
  • the first adjustment frame 501, the second adjustment frame 502, and the third adjustment frame 503 may all be transmission-connected to the driving member 6.
  • the first adjustment frame 501, the second adjustment frame 502, and the third adjustment frame 503 may be transmission-connected to the same driving member 6.
  • the first adjustment frame 501, the second adjustment frame 502, and the third adjustment frame 503 may be transmission-connected to three driving members 6 one by one, respectively. This application is not limited to this.
  • the optical device 200 of the above structure can be assembled by the following assembly method:
  • the above S101 specifically includes:
  • the plurality of filters 41 are respectively disposed on the plurality of adjustment frames 5. Then, the assembly of the plurality of filters 41 and the adjustment frames 5 is movably connected to the housing 10 respectively.
  • the above S101 specifically includes:
  • At least one filter 410 among the plurality of filters 41 is fixedly mounted on the adjustment frame 5 , and the assembly of the filter 410 and the adjustment frame 5 , as well as the remaining filter 410 among the plurality of filters 41 are movably mounted in the housing 10 .
  • the movable connection between the adjustment frame 5 and the housing 10 may be rotatably connected mechanically, or directly connected via an adhesive material that requires a special curing operation.
  • S102 Input the detection light into the optical interface 1, and adjust the installation angle of the filter 410 through the adjustment frame 5 in sequence according to the optical path until the angle of the light beam exported or imported by the detection light through the filter 410 reaches a preset angle, and then fix the adjustment frame 5 to the housing 10.
  • the installation angle of the second filter 412 can be adjusted by the first adjustment frame 501, and then the installation angle of the fifth filter 415 can be adjusted by the second adjustment frame 502, and then the installation angle of the eighth filter 418 can be adjusted by the third adjustment frame 503.
  • the first adjustment frame 501, the second adjustment frame 502 and the third adjustment frame 503 can be adjusted manually or automatically.
  • the adjustment frame 5 and the housing 10 are rotatably connected by mechanical means, the adjustment frame 5 and the housing 10 may be fixedly connected by welding or gluing the adjustment frame 5 and the housing 10 directly.
  • the above-mentioned fixed connection method of the adjustment frame 5 and the housing 10 can be specifically: the adhesive material between the adjustment frame 5 and the housing 10 is cured.
  • the adhesive material between the adjustment frame 5 and the housing 10 is first pre-cured, and specifically can be cured by UV light. After that, the adhesive material between the adjustment frame 5 and the housing 10 is further cured, and specifically can be cured by light curing or heat curing process.
  • a mounting surface 102 as shown in FIG. 22 can be formed on the inner wall of the housing 10.
  • Multiple filters 41 can be bonded to the mounting surface 102, or only one or several filters 410 can be bonded to the mounting surface 102.
  • the installation error of multiple filters 41 can be reduced to less than ⁇ 0.3°, ensuring the accuracy of the wavelength separation of the filters 410 in the optical device 200.
  • a mounting surface 102 is formed in the housing 10 shown in FIG. 22, and the mounting surface 102 is parallel to the XZ plane. Multiple filters 41 are mounted on the mounting surface 102.
  • the multiple filters 41 in the optical device 200 can be assembled using the following assembly method:
  • the installation positions and installation angles of the multiple filters 41 on the mounting surface 102 of the housing 10 are designed to meet the wave separation characteristics of the multiple filters 41.
  • the installation position is a preset installation position
  • the installation angle is a preset installation angle.
  • Glue is dispensed at the preset installation positions of the multiple filters 41 on the mounting surface 102 of the housing 10.
  • a side surface 4101 of any filter 410 is attached to the adhesive layer of the mounting surface 102.
  • the side line or corner of the filter 410 is used as a mounting reference to adjust the mounting angle of the filter 410 until the mounting angle of the filter 410 reaches a preset mounting angle. After that, the above steps are repeated in sequence according to the optical path sequence to adjust the mounting angles of multiple filters 41.
  • the glue layer between the side surface 4101 of the filter 410 and the mounting surface 102 may be pre-cured, specifically by UV light, and then further cured, specifically by light curing or heat curing, on the glue layer between the side surface 4101 of the filter 410 and the mounting surface 102.
  • the optical film assembly 4 in this example also includes an isolator 42 and a collimating lens 43 as shown in FIG21.
  • the number of isolators 42 can be one, and the isolator 42 is arranged on the exit optical path of the first laser emitter 21, the second laser emitter 22 and the third laser emitter 23 in the light emitting device 2.
  • the first laser emitter 21, the second laser emitter 22 and the third laser emitter 23 can be protected from optical signal crosstalk at the same time.
  • the number of isolators 42 can also be three, as shown in FIG22, the three isolators 42 are respectively the first isolator 42a, the second isolator 42b and the third isolator 42c.
  • the first isolator 42a is arranged opposite to the light outlet of the first laser emitter 21, the second isolator 42b is arranged opposite to the light outlet of the second laser emitter 22, and the third isolator 42c is arranged opposite to the light outlet of the third laser emitter 23.
  • the first isolator 42a can protect the first laser emitter 21 from optical signal crosstalk.
  • the second isolator 42b can protect the second laser emitter 22 from optical signal crosstalk.
  • the third isolator 42c can protect the third laser emitter 23 from optical signal crosstalk.
  • the two collimating lenses 43 can be two collimating lenses 43, and the two collimating lenses 43 are respectively a first collimating lens 431 and a second collimating lens 432.
  • the first collimating lens 431 is arranged at the optical port of the optical interface 1 close to the inner cavity of the shell 10.
  • the first collimating lens 431 is used to convert the converged light introduced from the optical interface 1 into parallel light.
  • the second collimating lens 432 is arranged between the eleventh filter 421 and the fifth filter 415.
  • the second collimating lens 432 is used to convert the fourth combined optical signal combined by the eleventh filter 421 from converged light to parallel light.
  • the first collimating lens 431 is also used to convert the parallel light emitted by the first filter 411 into converged light and introduce it into the optical interface 1.
  • the structure of the optical device 200 in this example is similar to that of Example 1, except that any two of the first laser emitter 21, the second laser emitter 22, and the third laser emitter 23 of the light emitting device 2 in the optical device 200 in this example are integrated and packaged into an integral structure, and the remaining one is packaged separately. Therefore, the light emitting device 2 in this example has a high degree of integration, which reduces the volume of the light emitting device 2 and is conducive to the miniaturization of the optical device 200.
  • the second laser emitter 22 and the third laser emitter 23 shown in FIG23 are packaged as an integrated structure.
  • the second laser emitter 22 and the third laser emitter 23 can be packaged as an integrated structure using a box package or a coaxial package.
  • the first laser emitter 21 can be packaged as a box package or a coaxial package.
  • the second laser emitter 22 and the third laser emitter 23 shown in FIG23 are integrated as an integrated structure using a coaxial package, and the first laser emitter 21 is also packaged as a coaxial package.
  • the second laser emitter 22 and the third laser emitter 23 packaged as an integrated structure can be arranged opposite to the optical interface 1.
  • the first laser emitter 21 is arranged at intervals from the second laser emitter 22 and the third laser emitter 23 of the integrated structure, and the first laser emitter 21 is located on a side of the second laser emitter 22 and the third laser emitter 23 of the integrated structure close to the optical interface 1.
  • the optical device 200 of this example further includes an adjustment support 401 and a reflective film 402, and the adjustment support 401 can specifically be an adjustment prism.
  • the reflective film 402 and the tenth filter 420 are both attached to the adjustment prism to form a Z-block filter assembly 40.
  • the reflective film 402 is located on the emission optical path of the second laser emitter 22 and the third laser emitter 23 of the integrated structure.
  • the reflection optical path of the reflective film 402 intersects with the emission optical path of the second laser emission chip in the second laser emitter 22 and the third laser emitter 23 of the integrated structure.
  • the tenth filter 420 is located at the intersection of the reflection optical path of the reflective film 402 and the emission optical path of the second laser emission chip in the second laser emitter 22 and the third laser emitter 23 of the integrated structure.
  • the optical signal of the third communication protocol emitted by the third laser emission chip in the second laser emitter 22 and the third laser emitter 23 of the integrated structure is reflected by the reflective film 402 to the tenth filter 420 through the adjustment prism.
  • the optical signal of the second communication protocol emitted by the second laser emitting chip in the second laser emitting chip 22 and the third laser emitting chip 23 of the integrated structure enters the tenth filter.
  • the tenth filter 420 combines the optical signal of the second communication protocol and the optical signal of the third communication protocol into a third combined optical signal, and transmits the third combined optical signal to the eleventh filter 421.
  • the Z-block filter assembly 40 is integrated with the second laser emitter 22 and the third laser emitter 23 in the same tube shell.
  • the above-mentioned adjustment prism can also be replaced with an adjustment bracket, and the above-mentioned reflection film 402 can also be replaced with a reflection mirror, and the present application does not impose any limitation on this.
  • the structure of the optical device 200 in this example is similar to that of Example 1, except that the first laser emitter 21, the second laser emitter 22, and the third laser emitter 23 of the light emitting device 2 in the optical device 200 in this example are integrated and packaged together. Therefore, the light emitting device 2 in this example has a high degree of integration, which reduces the volume of the light emitting device 2 and is conducive to the miniaturization of the optical device 200.
  • first laser emitter 21, the second laser emitter 22 and the third laser emitter 23 which are integrated and packaged as an integral structure can be packaged in a box type or in a coaxial type.
  • the first laser emitter 21, the second laser emitter 22 and the third laser emitter 23 shown in FIG24 are packaged in a box type as an integral structure.
  • the first laser emitter 21, the second laser emitter 22, and the third laser emitter 23 packaged as an integrated structure can be arranged opposite to the optical interface 1.
  • the optical device 200 of this example further includes an adjustment support 401, a first reflection film 4021, and a second reflection film 4022, wherein the adjustment support 401 is specifically an adjustment prism.
  • the first reflection film 4021, the second reflection film 4022, the tenth filter 420, and the eleventh filter 421 are all attached to the adjustment prism to form a Z-block filter assembly 40.
  • the first reflection film 4021 is located on the emission light path of the third laser emission chip in the first laser emitter 21, the second laser emitter 22, and the third laser emitter 23 of the integrated structure.
  • the reflection light path of the first reflection film 4021 intersects with the emission light path of the second laser emission chip in the first laser emitter 21, the second laser emitter 22, and the third laser emitter 23 of the integrated structure.
  • the tenth filter 420 is located at the intersection of the reflection light path of the first reflection film 4021 and the emission light path of the second laser emission chip in the first laser emitter 21, the second laser emitter 22 and the third laser emitter 23 of the integrated structure.
  • the second reflection film 4022 is located on the reflection light path of the tenth filter 420.
  • the emission light path of the first laser emission chip in the first laser emitter 21, the second laser emitter 22 and the third laser emitter 23 of the integrated structure intersects with the reflection light path of the second reflection film 4022.
  • the eleventh filter 421 is located at the intersection of the emission light path of the first laser emission chip in the first laser emitter 21, the second laser emitter 22 and the third laser emitter 23 of the integrated structure and the reflection light path of the second reflection film 4022.
  • the optical signal of the third communication protocol emitted by the third laser emission chip in the first laser emitter 21, the second laser emitter 22 and the third laser emitter 23 of the integrated structure is reflected by the first reflective film 4021 to the tenth filter 420 through the adjustment prism.
  • the optical signal of the second communication protocol emitted by the second laser emission chip in the first laser emitter 21, the second laser emitter 22 and the third laser emitter 23 of the integrated structure enters the tenth filter 420.
  • the tenth filter 420 combines the optical signal of the second communication protocol with the optical signal of the third communication protocol into a third combined optical signal, and transmits the third combined optical signal to the second reflective film 4022 through the adjustment prism.
  • the second reflective film 4022 reflects the third combined optical signal to the eleventh filter 421.
  • the optical signal of the first communication protocol emitted by the first laser emission chip in the first laser emitter 21, the second laser emitter 22 and the third laser emitter 23 of the integrated structure enters the eleventh filter 421.
  • the eleventh filter 421 combines the optical signal of the first communication protocol with the third combined optical signal into a fourth combined optical signal, and transmits it to the optical interface 1.
  • the Z-block filter assembly 40 is integrated with the first laser emitter 21 , the second laser emitter 22 , and the third laser emitter 23 in the same tube shell.
  • the above-mentioned adjustment prism can also be replaced with an adjustment bracket, and the above-mentioned first reflection film 4021 and the second reflection film 4022 can also be replaced with reflection mirrors, and the present application does not impose any limitation on this.
  • the optical device 200 in this example is similar to some structures of Example 1, except that: with reference to FIG. 25 and FIG. 26, the first filter group 41a in the optical device 200 in this example includes a first filter 411, a second filter 412 and a third filter 413.
  • the first filter 411, the second filter 412 and the third filter 413 are all located on the receiving optical path of the first optical receiver 31, the second optical receiver 32 and the third optical receiver 33.
  • the first filter 411, the second filter 412 and the third filter 413 are sequentially distributed along the incident light direction of the first optical receiver 31.
  • the first filter 411 reflects the first combined optical signal including the optical signal of the first communication protocol, the optical signal of the second communication protocol and the optical signal of the third communication protocol emitted by the optical interface 1 to the second filter 412.
  • the second filter 412 reflects the first combined optical signal to the third filter 413.
  • the third filter 413 separates the optical signal of the first communication protocol from the optical signal of the second communication protocol and the optical signal of the third communication protocol.
  • the third filter 413 may reflect the optical signal of the second communication protocol and the optical signal of the third communication protocol, and allow the optical signal of the first communication protocol to be transmitted to the first optical receiver 31 .
  • the second filter group 41b includes a fourth filter 414, which is located between the third filter 413 and the second light receiver 32.
  • the fourth filter 414 can reflect the optical signal of the third communication protocol reflected by the third filter 413, and allow the optical signal of the second communication protocol to be transmitted to the second optical receiver 32.
  • the fourth filter 414 can separate the optical signal of the second communication protocol reflected by the third filter 413 from the optical signal of the third communication protocol.
  • the third filter group 41c includes a fifth filter 415, which is located on an optical path from the fourth filter 414 to the third optical receiver 33.
  • the fifth filter 415 can reflect the optical signal of the third communication protocol reflected by the fourth filter 414 to the third receiver 33.
  • the optical receiving device 3 in this example requires fewer filters 410 , which is suitable for application scenarios where the first optical receiver 31 , the second optical receiver 32 , and the third optical receiver 33 are spaced relatively close together on the housing 10 .
  • the above-mentioned first filter group 41a further includes a sixth filter 416, which is located on the transmission light path of the third filter 413 and is arranged opposite to the first optical receiver 31.
  • the sixth filter 416 can filter the impurity optical signal in the optical signal of the first communication protocol transmitted by the third filter 413, and transmit the filtered optical signal to the first optical receiver 31.
  • the second filter group 41a further includes a seventh filter 417, which is located on the transmission light path of the fourth filter 414 and is arranged opposite to the second optical receiver 32.
  • the seventh filter 417 can filter the impurity optical signal in the optical signal of the second communication protocol transmitted by the fourth filter 414, and transmit the filtered optical signal to the second optical receiver 32.
  • the third filter group 41c further includes an eighth filter 418, which is located on the reflected light path of the fifth filter 415 and is arranged opposite to the third optical receiver 33.
  • the eighth filter 418 can filter the impurity optical signal in the optical signal of the third communication protocol reflected by the fifth filter 415, and transmit the filtered optical signal to the third optical receiver 33.
  • the first filter 411 is located on the light output paths of the first laser emitter 21, the second laser emitter 22, and the third laser emitter 23.
  • the first filter 411 can also allow the optical signal of the first communication protocol emitted by the first laser emitter 21, the optical signal of the second communication protocol emitted by the second laser emitter 22, and the optical signal of the third communication protocol emitted by the third laser emitter 23 to be transmitted to the optical interface 1. Therefore, the fourth combined optical signal derived by the eleventh filter 421 can be transmitted to the optical interface 1 through the first filter 411 in sequence.
  • the internal space of the optical device 200 shown in FIG28 is small, and eight adjustment racks 5 cannot be set in the housing 10 to respectively install eight filters 41. Therefore, three adjustment racks 5 can be set in the housing 10, as shown in FIG29, and the three adjustment racks 5 are respectively a first adjustment rack 501, a second adjustment rack 502, and a third adjustment rack 503.
  • the second filter 412 is installed on the first adjustment rack 501
  • the third filter 413 is installed on the second adjustment rack 502
  • the fifth filter 415 is installed on the third adjustment rack 503.
  • the installation error of multiple filters 41 can be reduced to less than ⁇ 0.3°, ensuring the accuracy of the wavelength separation of the filters 410 in the optical device 200.
  • the fourth filter 414 can also be installed on the third adjustment frame 503, and the above technical effect can also be achieved.
  • the assembly and debugging method of the three adjustment frames 5 and the housing 10 is the same as that of Example 1, and the first adjustment frame 501 , the second adjustment frame 502 , and the third adjustment frame 503 can be assembled and debugged in sequence, which will not be described in detail here.
  • the optical device 200 in this example is similar to some structures of Example 4, except that any two of the first optical receiver 31, the second optical receiver 32 and the third optical receiver 33 of the optical receiving device 3 in the optical device 200 in this example are integrated and packaged as an integral structure, and the remaining one is packaged separately. Therefore, the optical receiving device 3 in this example has a high degree of integration, which reduces the volume of the optical receiving device 3 and is conducive to the miniaturization of the optical device 200.
  • the second optical receiver 32 and the third optical receiver 33 of the optical receiving device 3 are integrated and packaged into an integral structure, and the first optical receiver 31 is packaged separately.
  • the second optical receiver 32 and the third optical receiver 33 are packaged into an integral structure using a box package or a coaxial package.
  • the first optical receiver 31 is packaged in a box package or a coaxial package.
  • the seventh filter 417 in the second filter group 41b is arranged opposite to the second optical chip in the second optical receiver 32 and the third optical receiver 33 of the integrated structure.
  • the second filter group 41b can introduce the optical signal of the second communication protocol into the second optical chip in the second optical receiver 32 and the third optical receiver 33 of the integrated structure, and reflect the optical signal of the second communication protocol to the third filter group 41c. Therefore, the second filter group 41b can separate the optical signal of the second communication protocol from the optical signal of the third communication protocol.
  • the eighth filter 418 in the third filter group 41c is arranged opposite to the third optical chip in the second optical receiver 32 and the third optical receiver 33 of the integrated structure.
  • the third filter group 41c can introduce the optical signal of the third communication protocol into the third optical chip in the second optical receiver 32 and the third optical receiver 33 of the integrated structure.
  • the optical device 200 in this example is similar to the structure of Example 4, except that: Referring to FIG. 31, the first optical receiver 31 and the second optical receiver 32 of the optical receiving device 3 in the optical device 200 in this example are integrated and packaged into an integral structure, and the third optical receiver 33 is packaged separately. In addition, the first optical receiver 31 and the second optical receiver 32 are packaged into an integral structure using a box package or a coaxial package. The third optical receiver 33 is packaged in a box package or a coaxial package.
  • the first filter group 41a includes a first filter 411, a second filter 412, a third filter 413 and a sixth filter 416.
  • the second filter group 41b includes a fourth filter 414 and a seventh filter 417.
  • the optical device 200 also includes an adjustment support 401 and a reflective film 402, and the adjustment support 401 is specifically an adjustment prism.
  • the third filter 413, the fourth filter 414, and the reflective film 402 are all arranged on the adjustment support 401 to form a Z-block filter assembly 40.
  • the first filter 411, the second filter 412, the third filter 413 and the sixth filter 416 in the first filter group 41a are all located on the receiving optical path of the first optical receiver 31, and are arranged in sequence along the light incident direction of the first optical receiver 31.
  • the first filter 411 reflects the first combined optical signal including the optical signal of the first communication protocol, the optical signal of the second communication protocol and the optical signal of the third communication protocol emitted by the optical interface 1 to the second filter 412.
  • the second filter 412 reflects the first combined optical signal to the third filter 413 through the adjustment prism.
  • the third filter 413 reflects the optical signal of the second communication protocol and the optical signal of the third communication protocol, and allows the optical signal of the first communication protocol to be transmitted to the sixth filter 416.
  • the third filter 413 separates the optical signal of the first communication protocol from the optical signal of the second communication protocol and the optical signal of the third communication protocol.
  • the sixth filter 416 is arranged opposite to the first optical chip in the first optical receiver 31 and the second optical receiver 32 of the integrated structure. The sixth filter 416 filters the impurity optical signal in the optical signal of the first communication protocol transmitted by the third filter 413 , and transmits the filtered optical signal to the first optical receiver 31 .
  • the above-mentioned reflective film 402 is bonded or formed on the partial surface of the adjustment prism in the reflection light path of the third filter 413.
  • the fourth filter 414 in the second filter group 41b is located on the receiving light path of the second optical receiver 32.
  • the fourth filter 414 is bonded to the partial surface of the adjustment prism in the reflection light path of the reflective film 402.
  • the seventh filter 417 is arranged opposite to the second optical chip in the first optical receiver 31 and the second optical receiver 32 of the integrated structure.
  • the fourth filter 414 and the seventh filter 417 are arranged in sequence along the light incident direction of the second optical receiver 32.
  • the reflective film 402 reflects the second combined optical signal including the optical signal of the second communication protocol and the optical signal of the third communication protocol reflected by the third filter 413 to the fourth filter 414.
  • the fourth filter 414 can reflect the optical signal of the third communication protocol to the seventh filter 417, and allow the optical signal of the second communication protocol to be transmitted to the seventh filter 417.
  • the fourth filter 414 can separate the optical signal of the second communication protocol from the optical signal of the third communication protocol.
  • the seventh filter 417 can filter out impurity optical signals in the optical signal of the second communication protocol transmitted by the fourth filter 414 , and transmit the filtered optical signal to the second optical receiver 32 .
  • the third filter group 41c includes a fifth filter 415, which is located on the reflected light path of the fourth filter 414 and is arranged opposite to the third optical receiver 33.
  • the fifth filter 415 can filter the impurity optical signal in the optical signal of the third communication protocol reflected by the fourth filter 414, and transmit the filtered optical signal to the third optical receiver 33.
  • Example 5 Compared with Example 5, the number of filters 410 required for the light receiving device 3 in this example is reduced to seven.
  • the distribution of the optical film assembly 4 in this example is suitable for a scenario where any two of the first light receiver 31, the second light receiver 32, and the third light receiver 33 are integrated into an integrated structure.
  • the first filter 411 is located on the light output path of the first laser emitter 21, the light output path of the second laser emitter 22, and the light output path of the third laser emitter 23.
  • the first filter 411 can also allow the optical signal of the first communication protocol emitted by the first laser emitter 21, the optical signal of the second communication protocol emitted by the second laser emitter 22, and the combined optical signal of the third communication protocol emitted by the third laser emitter 23 to be transmitted to the optical interface 1.
  • the above-mentioned adjustment prism can also be replaced with an adjustment bracket, and the above-mentioned reflection film 402 can also be replaced with a reflection mirror, and the present application does not impose any limitation on this.
  • the Z-block filter assembly 40 and the housing 10 may be assembled by the following assembly method:
  • the installation positions and installation angles of the multiple filters 41 and the Z-BLOCK filter assembly 40 in the housing 10 are designed to ensure the wave separation characteristics of the multiple filters 41.
  • the installation position is a preset installation position
  • the installation angle is a preset installation angle.
  • Glue is dispensed at multiple preset installation positions on the inner wall of the housing 10.
  • S302 Input the detection light into the optical interface 1, and adjust the installation angle of the Z-BLOCK filter assembly 40 in the housing 10 until the angle of the light beam derived by the detection light through other filters 410 and the filter 410 in the Z-BLOCK filter assembly 40 reaches a preset light output angle.
  • one side of the Z-BLOCK filter assembly 40 is attached to the adhesive layer on the mounting surface 102.
  • the assembly and debugging process of the remaining filters 410 and the inner wall of the housing 10 can be the same as the side mounting process of the filter 410 in Example 1, and will not be described one by one here.
  • the remaining filters 410 can be directly fixedly connected to the housing 10 using the fixing frame 101, or can be connected to the inner wall of the housing 10 using a side mounting method.
  • the adhesive layer between the Z-BLOCK filter assembly 40 and the inner wall of the housing 10, and the adhesive layer between the side surfaces of the plurality of filters 41 and the inner wall of the housing 10 may be pre-cured, and specifically, may be cured by UV light. Afterwards, the adhesive layer between the Z-BLOCK filter assembly 40 and the inner wall of the housing 10, and the adhesive layer between the side surfaces 4101 of the plurality of filters 41 and the inner wall of the housing 10 may be further cured, and specifically, a light curing or heat curing process may be used.
  • the structure of the optical device 200 in this example is similar to that of Example 6, except that: referring to FIG. 32 , the optical receiving device 3 of the optical device 200 in this example includes a first optical receiver 31, a second optical receiver 32, and a third optical receiver 33, which are integrated and packaged into an integral structure.
  • the packaging form of the optical receiving device 3 can be a box-type package or a coaxial package. Therefore, the optical receiving device 3 in this example has a high degree of integration, which reduces the volume of the optical receiving device 3 and is conducive to the miniaturization of the optical device 200.
  • the Z-BLOCK filter assembly 40 in this example further includes a first reflective film 4021, a second reflective film 4022, and a fifth filter 415 in the third filter group 41c.
  • the first reflective film 4021 is located on the partial surface of the adjustment prism in the reflection light path of the third filter 413.
  • the fourth filter 414 is located on the partial surface of the adjustment prism in the reflection light path of the first reflective film 4021.
  • the second reflective film 4022 is located on the partial surface of the adjustment prism in the reflection light path of the fourth filter 414.
  • the fifth filter 415 is located on the partial surface of the adjustment prism in the reflection light path of the second reflective film 4022.
  • the specific optical path is similar to the above example, and will not be described one by one here.
  • the third filter group 41c further includes an eighth filter 418, which is disposed opposite to the third optical chip in the first optical receiver 31, the second optical receiver 32, and the third optical receiver 33 of the integrated structure.
  • the eighth filter 418 filters the impurity optical signal in the optical signal of the third communication protocol transmitted by the third filter 413, and transmits the filtered optical signal to the third optical receiver 33.
  • the structure of the optical device 200 in this example is similar to that of Example 8, except that: as shown in FIG34 , the first laser emitter 21, the second laser emitter 22, and the third laser emitter 23 of the light emitting device 2 in the optical device 200 in this example are integrated and packaged together. Therefore, the light emitting device 2 in this example has a high degree of integration, which reduces the volume of the light emitting device 2, and further facilitates the miniaturization of the optical device 200.
  • the optical device 200 in this example includes a first Z-block filter assembly 40a and a second Z-block filter assembly 40b.
  • the composition of the first Z-block filter assembly 40a is the same as that of the Z-block filter assembly 40 in Example 8.
  • the adjustment support member in the first Z-block filter assembly 40a is a first adjustment support member 401a.
  • the first Z-block filter assembly 40a is integrated with the first optical receiver 31, the second optical receiver 32, and the third optical receiver 33 into an integrated structure.
  • the second Z-block filter assembly 40b is integrated with the first laser 21, the second laser 22 and the third laser 23 into an integral structure.
  • the second Z-block filter assembly 40b includes a second adjustment support 401b, a third reflection film 4023, a fourth reflection film 4024, a tenth filter 420 and an eleventh filter 421.
  • the second adjustment support 401b is specifically an adjustment prism.
  • the third reflection film 4023 is located on a partial surface of the second adjustment support 401b in the emission light path of the first laser 21.
  • the tenth filter 420 is located on a partial surface of the second adjustment support 401b in the emission light path of the third reflection film 4023.
  • the fourth reflective film 4024 is located on the surface of the second adjustment support member 401b that is located in the reflection light path of the tenth filter plate 420.
  • the wave plate 421 is located on a surface of the second adjustment support member 401 b that is in the reflection light path of the fourth reflection film 4024 .
  • the fourth reflective film 4024 reflects the third combined optical signal to the eleventh filter 421.
  • the eleventh filter 421 combines the optical signal of the first communication protocol emitted by the first laser emitter chip in the first laser emitter 21, the second laser emitter 22 and the third laser emitter 23 of the integrated structure with the third combined optical signal into a fourth combined optical signal, and transmits it to the optical interface 1.
  • the second Z-block filter assembly 40b is integrated and packaged into an integral structure with the first laser emitter 21, the second laser emitter 22 and the third laser emitter 23.
  • the packaging form shown in Fig. 34 is a box-type packaging.
  • the above-mentioned adjustment prism can also be replaced with an adjustment bracket, and the above-mentioned third reflection film 4023 and the fourth reflection film 4024 can also be replaced with reflection mirrors, and the present application does not impose any limitation on this.
  • the structure of the optical device 200 in this example is similar to that of Example 9, except that: as shown in FIG35 , the light outlet of the integrated light emitting device 2 and the light inlet of the integrated light receiving device 3 in the optical device 200 in this example face the same direction.
  • the first filter group 41a further includes a twelfth filter 422, which is disposed on the optical path between the second filter 412 and the third filter 413, and is used to reflect the first combined optical signal including the optical signal of the first communication protocol, the optical signal of the second communication protocol, and the optical signal of the third communication protocol reflected by the second filter 412 to the third filter 413.

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Abstract

本申请实施例公开了一种光通讯设备、光器件及其组装方法，涉及光通讯领域。光器件包括光接口、多个滤波片、光发射装置及光接收装置。光发射装置包括分别发射三种不同通信协议光信号的第一激光发射器、第二激光发射器和第三激光发射器。光接收装置包括分别接收三种不同通信协议的光信号的第一光接收器、第二光接收器和第三光接收器。多个滤波片将光接口导入的三种不同通信协议的光信号分离，并分别导入第一光接收器、第二光接收器和第三光接收器；还将第一激光发射器、第二激光发射器及第三激光发射器发射的三种不同通信协议的光信号合并导入光接口。所以，光器件可实现GPON、10G PON、50GPON光信号同时收发。

Description

一种光通讯设备、光器件及其组装方法
本申请要求于2022年12月01日提交中国专利局、申请号为202211525974.2、申请名称为“一种光通讯设备、光器件及其组装方法”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及光通讯技术领域，尤其涉及一种光通讯设备、光器件及其组装方法。
背景技术
在PON(passive optical network，无源光纤网络)光网络的接近二十年演进中，先后经历了GPON(gigabit-capable PON，千兆无源光网络)、10G PON(10Gbit/s PON，万兆无源光网络)的两代产品商用化，实现了从百兆到千兆网络的跨越。
随着光网络需求的不断提升，业内出现了50G PON(50Gbit/s PON，5万兆无源光网络)产品。但是，现有光收发器件无法满足GPON、10G PON、50G PON光信号同时收发的需求。
发明内容
本申请实施例提供一种光通讯设备、光器件及其组装方法，可以满足GPON、10G PON、50G PON的光信号同时收发的需求。
为达到上述目的，本申请采用如下技术方案：
第一方面，本申请实施例提供一种光器件。该光器件包括光接口、光发射装置、光接收装置以及多个滤波片。光发射装置包括第一激光发射器、第二激光发射器和第三激光发射器。第一激光发射器、第二激光发射器及第三激光发射器分别用于发射三种不同通信协议的光信号。其中，三种不同的通信协议可以分别为用于10G PON协议的第一通信协议、用于50G PON协议的第二通信协议及用于GPON协议的第三通信协议。所以，第一通信协议包括接收速率为10Gbps且波长为1260～1280nm的调制光信号、将接收的速率为10Gbps的调制电信号转换为波长为1575～1580nm的调制光信号发射。第二通信协议包括接收速率为50Gbps速率且波长为1284～1288nm的调制光信号、将接收的速率为50Gbps的调制电信号转换为波长为1340～1344nm的调制光信号发射。第三通信协议包括接收速率为1.25Gbps且波长为1290～1330nm的调制光信号、将接收的2.5Gbps速率的调制电信号转换为波长为1480～1490nm的调制光信号发射。除了上述三种通信协议，本申请实施例的第一激光发射器、第二激光发射器及第三激光发射器发射的三种不同通信协议的光信号还可以为其他通信协议，此处不再一一赘述。
并且，上述光接收装置包括第一光接收器、第二光接收器及第三光接收器。第一光接收器、第二光接收器和第三光接收器用于接收三种不同通信协议的光信号。此处接收的三种不同通信协议的光信号同样可以为上述第一通信协议、第二通信协议及第三通信协议，或者为其他通信协议的光信号。每种通信协议的光信号均可以通过光器件中的一个光接收器接收，一个激光发射器发射。
光器件还包括多个滤波片，多个滤波片间隔设置。多个滤波片包括第一滤波片组、第二滤波片组、第三滤波片组及第四滤波片组。其中，第一滤波片组位于第一光接收器的接收光路上，且用于将从光接口导入的包含三种不同通信协议的光信号中第一通信协议的光信号导入至第一光接收器，并三种不同通信协议光信号中第二通信协议的光信号和第三通信协议的光信号导出。第二滤波片组位于第一滤波片组到第二光接收器的光路上，且用于将从第一滤波片组透射的一种通信协议的光信号导入第二光接收器，并允许另一种通信协议的光信号导出。第三滤波片组位于第二滤波片组到第三光接收器的光路上，且用于将从第二滤波片组导出的光信号导入第三光接收器。所以，本申请实施例的光器件可以同时满足GPON、10G PON、50G PON光信号同时接收的需求。第四滤波片组位于第一激光发射器、第二激光发射器及第三激光发射器的出射光路上。第四滤波片组用于将第一激光发射器发射的第一通信协议的光信号、第二激光发射器发射的第一通信协议的光信号及第三激光发射器发射的第三通信协议的光信号合并导入光接口。所以，本申请实施例的光器件可以同时满足GPON、10G PON、50G PON光信号同时发射的需求。
并且，光器件还包括壳体，多个滤波片均位于壳体内。光接口、光发射装置及光接收装置可以设置在 壳体上。例光接口的光口、光发射装置的光出口及光接收装置的入光口均位于壳体内。当多个滤波片安装于壳体内时，容易会出现装配误差，导致滤波片的分波曲线发声变化，使得分波不准确。尤其是，对于间距较小的滤波片，严重影响了光路分光准确度。所以，在一些实施例中，壳体的内壁形成有贴装面。多个滤波片中至少一个的侧面与贴装面粘接。在滤波片与贴装面粘接时，可以以滤波片自身的边线或棱角作为调节参考，使得滤波片的安装位置和角度较精准，从而，可以将多个滤波片的安装误差降低至±0.3°以下，保证了光器件中滤波片的分波准确度。
在本申请的一些实施例中，光器件还包括Z-block滤波片组件，Z-block滤波片组件包括上述多个滤波片中的至少一个、以及调节支撑件。Z-block滤波片组件中的所有滤波片可以均设置在调节支撑件上。调节支撑件具体可以为调节棱镜、或调节支架。调节支撑件可以通过粘接方式与壳体连接。类似地，调节支撑件与壳体内壁粘结时，可以以调节支撑件自身的边线或棱角作为调节参考，使得Z-block滤波片组件中的所有滤波片的安装位置和安装角度较精准。从而，可以将多个滤波片的安装误差降低至±0.3°以下，保证了光器件中滤波片的分波准确性。
此外，在其他一些实施例中，光器件还包括一个或多个调节架，调节架可以连接在壳体的内壁上。如调节架通过粘接方式连接在壳体内壁上。并且，调节架的数量与滤波片的数量可以相等，或调节架的数量少于滤波片的数量。若调节架为一个，则多个滤波片中的一个滤波片安装在调节架上。若调节架为多个且与滤波片的数量相等，则多个滤波片可以与多个调节架一一对应组装。若调节架为多个且少于滤波片的数量，则多个滤波片中的部分可以与多个调节架一一对应组装。从而，在保证光器件中滤波片的分波准确性的前提下，适应壳体内空间大小不同的情况。
并且，在一些实施例中，上述调节架可以手动调节安装角度。在另一些实施例中，光器件还包括驱动件，如驱动电机，驱动件与调节架传动连接。从而，实现滤波片的自动调节安装角度的功能。
根据光器件中光发射装置和光接收装置的封装形式和分布方式不同，多个滤波片在分布情况也不同。在一些实施例中，上述第一滤波片组包括沿第一光接收器的入光方向依次设置的第一滤波片和第二滤波片。第一滤波片与光接口相对设置，且用于将光接口导入的光信号中包含三种不同通信协议的光信号中的第一通信协议的光信号反射至第二滤波片，并允许含三种不同通信协议的光信号中的第二通信协议的光信号和第三通信协议的光信号透射。第二滤波片用于将经第一滤波片反射的光信号反射至第一光接收器。第二滤波片组包括沿第二光接收器的入光方向依次设置的第三滤波片和第四滤波片，第三滤波片位于第一滤波片的透射光路上，且用于将经第一滤波片透射的第二通信协议的光信号反射至第四滤波片，并允许第三通信协议的光信号透射；第四滤波片用于将第三滤波片反射的光信号反射至第二光接收器。第三滤波片组包括沿第三光接收器的入光方向依次设置的第五滤波片和第六滤波片。第五滤波片位于第三滤波片的透射光路上，且用于将经第三滤波片透射的第三通信协议的光信号反射至第六滤波片。第六滤波片用于将经第五滤波片反射的光信号反射至光接收器。
并且，第五滤波片、第三滤波片及第一滤波片均位于光发射装置与光接口之间的光路上，且沿光发射装置的出光方向依次设置。第五滤波片、第三滤波片及第一滤波片均还用于允许第一激光发射器发射的第一通信协议的光信号、第二激光发射器发射的第二通信协议的光信号及第三激光发射器发射的第三通信协议的光信号合并导入光接口。
基于以上，为了避免杂质光信号进入第一光接收器、第二光接收器及第三光接收器，在一些实施例中，第一滤波片组还包括位于第二滤波片的反射光路上的第七滤波片，第七滤波片与第一光接收器相对设置，且用于过滤第二滤波片反射的光信号中的杂质光信号，并允许过滤后的光信号透射至第一光接收器。第二滤波片组还包括位于第四滤波片的反射光路上的第八滤波片，第八滤波片与第二光接收器相对设置，且用于过滤第四滤波片反射的光信号中的杂质光信号，并允许过滤后的光信号透射至第二光接收器。第三滤波片组还包括位于第六滤波片的反射光路上的第九滤波片，第九滤波片与第三光接收器相对设置，且用于过滤第六滤波片反射的光信号中的杂质光信号，并允许过滤后的光信号透射至第三光接收器。
基于上述滤波片的分布情况，对于壳体内空间较小的光器件，光器件还包括连接在壳体内壁上的三个调节架。三个调节架分别为：第一调节架、第二调节架及第三调节架。第二滤波片安装在第一调节架上。第四滤波片安装在第二调节架上。第六滤波片安装在第三调节架上。从而，该光器件也可以实现将多个滤波片的安装误差降低至±0.3°以下，保证了光器件中滤波片的分波准确性。
在本申请的另一些实施例中，上述第一滤波片组包括沿第一光接收器的入光方向依次设置的第一滤波片、第二滤波片及第三滤波片。第一滤波片与光接口相对设置，第一滤波片用于将光接口导入的包含三种 不同通信协议的光信号反射至第二滤波片。第二滤波片用于将包含三种不同通信协议的光信号反射至第三滤波片。第三滤波片用于将第二滤波片反射的包含三种不同通信协议的光信号中的第二通信协议的光信号和第三通信协议的光信号反射，并允许包含三种不同通信协议的光信号中的第一通信协议的光信号透射至第一光接收器。第二滤波片组包括位于第三滤波片到第二光接收器的光路上的第四滤波片。第四滤波片用于将第三滤波片反射的光信号中的第三通信协议的光信号反射，并允许第二通信协议的光信号透射至第二光接收器。第三滤波片组包括位于第四滤波片到第三光接收器的光路上的第五滤波片。第五滤波片用于将第四滤波片反射的第三通信协议的光信号反射至第三光接收器。
并且，基于此，第一滤波片位于光发射装置与光接口之间的光路上。第一滤波片还用于允许第一激光发射器发射的第一通信协议的光信号、第二激光发射器发射的第二通信协议的光信号及第三激光发射器发射的第三通信协议的光信号合并导入光接口。
同理，为了避免杂质光信号进入第一光接收器、第二光接收器及第三光接收器，第一滤波片组还包括位于第三滤波片的透射光路上的第六滤波片，第六滤波片与第一光接收器相对设置，且用于过滤第三滤波片透射的光信号中的杂质光信号，并将光信号透射至第一光接收器。第二滤波片组还包括位于第四滤波片的透射光路上的第七滤波片，第七滤波片与第二光接收器相对设置，且用于过滤第四滤波片透射的光信号中的杂质光信号，并将光信号透射至第二光接收器。第三滤波片组还包括位于第五滤波片的反射光路上的第八滤波片，第八滤波片与第三光接收器相对设置，且用于过滤第五滤波片反射的光信号中的杂质光信号，并将光信号透射至第三光接收器。
基于上述滤波片的分布情况，对于壳体内空间较小的光器件，光器件还包括连接在壳体内壁上的三个调节架。三个调节架分别为：第一调节架、第二调节架及第三调节架。第二滤波片安装在第一调节架上。第三滤波片安装在第二调节架上。第四滤波片或第五滤波片安装在第三调节架上。从而，该光器件也可以实现将多个滤波片的安装误差降低至±0.3°以下，保证了光器件中滤波片的分波准确性。
基于以上，在本申请的一些实施例中，第二激光发射器到光接口的光路与第三激光发射器到光接口的光路相交。上述多个滤波片还包括第十滤波片和第十一滤波片。其中，第十滤波片设置在第二激光发射器到光接口的光路与第三激光发射器到光接口的光路的相交处。第十滤波片用于将第二激光发射器发射的第二通信协议的光信号与第三激光发射器发射的第三通信协议的光信号合并导出。第一激光发射器到光接口的光路与第十滤波片的出射光路相交。第十一滤波片设置在第一激光发射器到光接口的光路与第十滤波片的出射光路相交处。并且，第十一滤波片用于将第十滤波片导出的光信号与第一激光发射器发射的第一通信协议的光信号合并导入光接口。
并且，在本申请的一些实施例中，光器件还包括第一准直透镜和第二准直透镜，第一准直透镜设置在光接口靠近壳体内侧的光口处。第二准直透镜设置在第一激光发射器、第二激光发射器和第三激光发射器的出射光路上。第二准直透镜用于将第一激光发射器、第二激光发射器和第三激光发射器出射的光信号从汇聚光转换为平行光。第一准直透镜用于将从光接口导入的汇聚光转换为平行光，还用于将第二准直透镜出射的平行光转换为汇聚光。
此外，在本申请的一些实施例中，光器件还包括隔离器，隔离器设置在第一激光发射器、第二激光发射器和第三激光发射器的出射光路上。在一些示例中，隔离器的数量为一个，该隔离器设置在第一激光发射器的出射光路、第二激光发射器的出射光路和第三激光发射器的出射光路的交汇位置。例如，该隔离器位于第十一滤波片的出射光路与第二准直透镜之间。该隔离器可以同时对第一激光发射器、第二激光发射器和第三激光发射器起到防光信号串扰的作用。在另一些示例中，隔离器的数量可以为三个，三个隔离器分别设置在第一激光发射器、第二激光发射器和第三激光发射器的出射光路上。从而，三个隔离器可以分别单独对对应的激光发射器起到防光信号串扰的作用。
在本申请的一些实施例中，上述光发射装置中第一激光发射器、第二激光发射器和第三激光发射器均单独封装设置，且间隔分布在壳体上。
在本申请的一些实施例中，上述光发射装置中第一激光发射器、第二激光发射器和第三激光发射器中的任两个集成封装为一体结构，剩余一个单独封装设置。该光发射装置的体积较小，有利于光器件的小型化。
在本申请的一些实施例中，上述光发射装置中第一激光发射器、第二激光发射器和第三激光发射器集成封装为一体结构。该光发射装置的体积小，有利于光器件的小型化。
同理，在本申请的一些实施例中，上述第一光接收器、第二光接收器和第三光接收器均单独封装设置， 且间隔分布在壳体上。
在本申请的一些实施例中，上述光接收装置中第一光接收器、第二光接收器和第三光接收器中的任两个集成封装为一体结构，剩余一个单独封装设置。该光接收装置的体积较小，有利于光器件的小型化。
在本申请的一些实施例中，上述光接收装置中第一光接收器、第二光接收器和第三光接收器集成封装为一体结构。该光接收装置的体积小，有利于光器件的小型化。
基于以上，上述第一激光发射器、第二激光发射器、第三激光发射器、第一光接收器、第二光接收器及第三光接收器不管是单独封装还是集成封装，封装形式可以采用同轴封装，也可以采用盒式封装。
第二方面，本申请实施例还包括一种光通讯设备，该光通讯设备可以为PON设备，如光线路终端设备、光网络单元设备、光网络设备等，也可以为光模块。该光通信设备包括电路板及上述实施例所述的光器件，该光器件电连接在电路板上。由于本申请实施例的光通讯设备中的光器件与上述实施例所述的光器件结构相同，两者能够解决相同的技术问题，获得相同的技术效果，此处不再赘述。
第三方面，本申请实施例包括一种用于上述实施例的光器件的组装方法。该组装方法具体包括以下步骤：将多个滤波片安装在壳体内的预设参考位置；其中，至少一个滤波片固定安装在调节架上，调节架与壳体活动连接。将检测光输入光接口，按照光路顺序，依次通过调节架来调节滤波片的安装角度，直至检测光通过多个滤波片导出或导入光束的角度达到预设角度。将调节架与壳体固定。
第四方面，本申请实施例还包括另一种用于上述实施例的光器件的组装方法。该组装方法具体包括以下步骤：按照滤波片在壳体内的预设安装位置，在壳体内的贴装面上进行点胶。将滤波片的侧面贴合在贴装面上的胶层上，并以滤波片的边线或边角为安装参考，调整滤波片的安装角度直至达到预设安装角度。对滤波片的侧面与贴装面之间的胶层进行固化。
第五方面，本申请实施例还包括其他一种用于上述实施例的光器件的组装方法。该组装方法具体包括以下步骤：将滤波片和Z-BLOCK滤波片组件活动安装在壳体内的预设参考位置。将检测光输入光接口，调节Z-BLOCK滤波片组件在壳体内的安装角度，直至检测光通过滤波片、Z-BLOCK滤波片组件导出光束的角度达到预设角度。将Z-BLOCK滤波片组件与壳体固定连接。
附图说明
为了说明本申请实施例的技术方案，下面将对本申请实施例中所需要使用的附图进行说明。
图1为本申请实施例光通信设备为光调制解调器的结构示意图；
图2为本申请实施例光通信设备中电路板组件的结构示意图；
图3为一种具有一个激光发射器和一个光接收器的光器件的结构示意图；
图4为一种具有两个激光发射器和两个光接收器的光器件的结构示意图；
图5为本申请实施例光器件的截面示意图；
图6为本申请实施例光器件中壳体的立体结构示意图；
图7为一种滤波片安装在固定架上的光器件的局部结构示意图；
图8为本申请实施例光器件的壳体具有贴装面的截面示意图；
图9为本申请实施例光器件中滤波片的立体结构示意图；
图10为本申请实施例光器件中滤波片与壳体的贴装面粘结的结构示意图；
图11为本申请实施例光器件具有Z-block滤波片组件的截面示意图；
图12为本申请实施例光器件中Z-block滤波片组件的立体结构示意图；
图13为本申请实施例光器件中滤波片与调节架组装在第一视角的结构示意图；
图14为本申请实施例光器件中滤波片与调节架组装在第二视角的结构示意图；
图15为本申请实施例光器件中滤波片角度调节演示图；
图16为本申请实施例光器件中滤波片与驱动件的组装示意图；
图17为示例1光器件中光接收装置与光接口之间的光路示意图；
图18为示例1光器件中光发射装置与光接口之间的光路示意图；
图19为示例1具有过滤杂光功能的光器件中光接收装置与光接口之间的光路示意图；
图20为示例1具有过滤杂光功能的光器件中光发射装置与光接口之间的光路示意图；
图21为示例1光器件具有三个调节架的结构示意图；
图22为示例1光器件的壳体具有贴装面的结构示意图；
图23为示例2光器件的结构示意图；
图24为示例3光器件的结构示意图；
图25为示例4光器件中光接收装置与光接口之间的光路示意图；
图26为示例4光器件中光发射装置与光接口之间的光路示意图；
图27为示例4具有过滤杂光功能的光器件中光接收装置与光接口之间的光路示意图；
图28为示例4具有过滤杂光功能的光器件中光发射装置与光接口之间的光路示意图；
图29为示例4光器件具有三个调节架的结构示意图；
图30为示例5光器件的结构示意图；
图31为示例6光器件的结构示意图；
图32为示例7光器件的结构示意图；
图33为示例8光器件的结构示意图；
图34为示例9光器件的结构示意图；
图35为示例10光器件的结构示意图。
附图标号：
1000-光调制解调器，100-电路板，200-光器件，10-壳体，101-固定架，102-贴装面，1-光接口，2-光
发射装置，20、20a、20b-激光发射器，21-第一激光发射器，22-第二激光发射器，23-第三激光发射器，3-光接收装置，30、30a、30b-光接收器，31-第一光接收器，32-第二光接收器，33-第三光接收器，4-光学膜片组件，41-多个滤波片，410-滤波片，4101/4101a-侧面，41a-第一滤波片组，41b-第二滤波片组，41c-第三滤波片组，41d-第四滤波片组，411-第一滤波片，412-第二滤波片，413-第三滤波片，414-第四滤波片，415-第五滤波片，416-第六滤波片，417-第七滤波片，418-第八滤波片，419-第九滤波片，420-第十滤波片，421-第十一滤波片，422-第十二滤波片，42-隔离器，42a-第一隔离器，42b-第二隔离器，42c-第三隔离器，43-准直透镜，431-第一准直透镜，432-第二准直透镜，40-Z-block滤波片组件，40a-第一Z-block滤波片组件，40b-第二Z-block滤波片组件，401-调节支撑件，401a-第一调节支撑件，401b-第二调节支撑件，402-反射膜/反射镜，4021-第一反射膜，4022-第二反射膜，4023-第三反射膜，4024-第四反射膜，5-调节架，501-第一调节架，502-第二调节架，503-第三调节架，51-安装托架，52-调节底座，521-调节槽，6-驱动件。
具体实施方式
为了使本申请的目的、技术方案和优点更加清楚，下面将结合附图对本申请作进一步地详细描述。
以下，术语“第一”、“第二”等仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”等的特征可以明示或者隐含地包括一个或者更多个该特征。在本申请的描述中，除非另有说明，“多个”的含义是两个或两个以上。
此外，本申请中，“上”、“下”、“左”、“右”、“水平”以及“竖直”等方位术语是相对于附图中的部件示意置放的方位来定义的，应当理解到，这些方向性术语是相对的概念，它们用于相对于的描述和澄清，其可以根据附图中部件所放置的方位的变化而相应地发生变化。
在本申请中，除非另有明确的规定和限定，术语“连接”应做广义理解，例如，“连接”可以是指的机械构造，物理构造的连接。如可以是固定连接，也可以是可拆卸连接，或成一体；可以是直接相连，也可以通过中间媒介间接相连。还可理解为元器件物理接触并电导通，也可理解为线路构造中不同元器件之间通过PCB铜箔或导线等可传输电信号的实体线路进行连接的形式。
本申请实施例包括一种光通信设备，该光通信设备可以为PON设备，如光线路终端(optical line terminal，OLT)设备、光网络单元(optical network unit，ONU)设备、光网络设备(Optical network terminal，ONT)，也可以为光模块(optical transceiver)。其中，光网络设备具体可以为光调制解调器。上述光模块可以应用于光线路终端设备，也可以应用于通信网络设备如路由器上。并且，光模块可以为板载光模块，也可以为可插拔光模块。
图1示出了一种光通信设备为光调制解调器的方案。该光调制解调器1000包括图2所示的电路板100和光器件200，光器件200电连接在电路板100上。其中，光器件200具体可以为光收发器件。电路板100上还具有其他电路、芯片或芯片封装结构等，此处不在一一说明。光器件200可以与电路板100上的其他电路、芯片或芯片封装结构进行信号传输。
为满足包括不同通信协议的光信号的光通信网络的收发需求，光收发器件可以采用不同的结构。例如，对于只需接收和发送一种通信协议的光信号，如图3所示，该光器件200可以包括一个激光发射器20和一个光接收器30。示例的，激光发射器20用于发射GPON协议的光信号。光接收器30用于接收GPON协议的光信号。
当需要接收和发送两种不同通信协议的光信号时，如图4所示，该光器件200可以包括两个激光发射器20a和20b、及两个光接收器30a和30b。两个光接收器30a和30b分别用于接收两种不同通信协议的光信号。两个激光发射器20a和20b分别用于发送两种不同通信协议的光信号。例如，激光发射器20a用于发射GPON协议的光信号。激光发射器20b用于发送10G PON协议的光信号。光接收器30a用于接收GPON协议的光信号。光接收器30b用于接收10G PON协议的光信号。所以，该光器件200为combo PON器件，可以满足GPON和10G PON光信号同时收发的需求。
但是，随着光网络需求的不断提升，业内出现了50G PON通信设备。为了满足GPON、10G PON和50G PON光信号同时收发的需求。所以，本申请实施例提出了一种光器件200。参照图5，该光器件200包括壳体10、光接口1、光发射装置2和光接收装置3。
其中，壳体10可以作为支撑结构。光接口1、光发射装置2和光接收装置3可以均安装在壳体10上。光接口1的光口、光发射装置2的光出口及光接收装置3的入光口均位于壳体10内。
示例的，图6示出的壳体10为长方体形。壳体10也可以制作为其他便于光接口1、光发射装置2和光接收装置3安装的形状，本申请对此不做限定。
上述光接口1可以引入外部的光信号。该光信号可以为检测光信号，检测光信号用于光器件200的组装调试。光信号也可以为承载有传输数据的调制光信号。示例的，光接口1可以具有同轴光纤。同轴光纤可以将光信号引入光器件200。光接口1还可以将光发射装置2发射的光信号传输出去。
返回参照图5，上述光发射装置2包括第一激光发射器21、第二激光发射器22和第三激光发射器23。第一激光发射器21、第二激光发射器22及第三激光发射器23分别用于发射三种不同通信协议的光信号。
上述光接收装置3包括第一光接收器31、第二光接收器32及第三光接收器33。第一光接收器31、第二光接收器32和第三光接收器33用于接收三种不同通信协议的光信号。
上述壳体10还包括如图5所示的光学膜片组件4，该光学膜片组件4均安装在壳体10内。光学膜片组件4包括多个滤波片41，多个滤波片41可以间隔分布在壳体10内。多个滤波片41包括第一滤波片组41a、第二滤波片组41b、第三滤波片组41c及第四滤波片组41d。
其中，第一滤波片组41a位于第一光接收器31的接收光路上。第一滤波片组41a用于将从光接口1导入的三种不同通信协议的光信号中第一通信协议的光信号导入第一光接收器31，并允许三种不同通信协议的光信号中第二通信协议的光信号和第三通信协议的光信号导出。
第二滤波片组41b位于第一滤波片组41a到第二光接收器32的光路上。第二滤波片组41b用于将从第一滤波片组41a导出的一种通信协议的光信号导入第二光接收器32，并允许从第一滤波片组41a导出的另一种通信协议的光信号导出。
第三滤波片组41c位于第二滤波片组41b到第三光接收器33的光路上。第三滤波片组41c用于将从第二滤波片组41b透射的光信号导入第三光接收器33。
第四滤波片组41d位于第一激光发射器21、第二激光发射器22、第三激光发射器23的出射光路上。第四滤波片组41d用于将第一激光发射器21发射的第一通信协议的光信号、第二激光发射器22发射的第二通信协议的光信号及第三激光发射器23发射的第三通信协议的光信号合并导入光接口1。
因此，本申请实施例的光器件200可以将光接口1导入的三种不同通信协议的光信号可以依次通过第一滤波片组41a、第二滤波片组41b及第三滤波片组41c分离开，并分别导入第一光接收器31、第二光接收器32及第三光接收器33，还可以将第一激光发射器21、第二激光发射器22及第三激光发射器23发射的三种不同通信协议的光信号通过第四滤波片组41d合并，并透射至光接口1内。
若第一通信协议的光信号为10G PON协议的光信号，第二通信协议的光信号为50G PON协议的光信号，第三通信协议的光信号为GPON协议的光信号，则第一通信协议包括接收速率为10Gbps且波长为1260～1280nm的调制光信号、将接收的速率为10Gbps的调制电信号转换为波长为1575～1580nm的调制光信号发射。第二通信协议包括接收速率为50Gbps速率且波长为1284～1288nm的调制光信号、将接收的速率为50Gbps的调制电信号转换为波长为1340～1344nm的调制光信号发射。第三通信协议包括接收速率为1.25Gbps且波长为1290～1330nm的调制光信号、将接收的2.5Gbps速率的调制电信号转换为波长为 1480～1490nm的调制光信号发射。
因此，在一些实施例中，第一滤波片组41a可以将从光接口1导入的包含速率为1.25Gbps且波长为1290～1330nm的调制光信号、速率为10Gbps且波长为1260～1280nm的调制光信号、速率为50Gbps速率且波长为1284～1288nm的调制光信号的合并光信号分离，并将速率为10Gbps且波长为1260～1280nm的调制光信号导入至第一光接收器31中，将速率为1.25Gbps且波长为1290～1330nm的调制光信号、速率为50Gbps速率且波长为1284～1288nm的调制光信号导出。第二滤波片组41b可以将第一滤波片组41a出射的速率为50Gbps速率且波长为1284～1288nm的调制光信号导入至第二光接收器32，并将速率为1.25Gbps且波长为1290～1330nm的调制光信号导出。第三滤波片组41c可以将从第二滤波片组41b出射的速率为1.25Gbps且波长为1290～1330nm的调制光信号导入第三光接收器33。
第一激光发射器21用于将接收的10Gbps速率的调制电信号转换为发射1575～1580nm波长的调制光信号。第二激光发射器22用于将接收的50Gbps速率的调制电信号并转换为发射1340～1344nm波长的调制光信号。第三激光发射器23用于将接收的2.5Gbps速率的调制电信号转换为发射1480～1490nm波长的调制光信号。第四滤波片组41d可以将第一激光发射器21发射的1575～1580nm波长的调制光信号、第二激光发射器22发射的1340～1344nm波长的调制光信号、第三激光发射器23发射的1480～1490nm波长的调制光信号合并导入光接口1。因此，第一激光发射器21与第一光接收器31组成一对用于10G PON的收发组件，第二激光发射器22与第二光接收器32组成一对用于50G PON的收发组件，第三激光发射器22与第二光接收器32组成一对用于GPON的收发组件。本申请实施例的光器件200包含三组收发组件，可以同时满足GPON、10G PON、50G PON光信号同时收发的需求。
可以理解的是，上述第一激光发射器21、第二激光发射器22及第三激光发射器23对应发射的上述三种不同通信协议的光信号，第一光接收器31、第二光接收器32及第三光接收器33对应接收上述三种不同通信协议的光信号仅为示例。在其他一些实施例中，第一激光发射器21、第二激光发射器22及第三激光发射器23还可以发射其他通信协议的光信号，第一光接收器31、第二光接收器32及第三光接收器33也可以接收其他通信协议的光信号，本申请对此不作限制。本申请实施例的光器件200包含三组收发组件可以分别收发三种不同通信协议的光信号即可。
并且，上述光器件200中光发射装置2和光接收装置3的结构和分布方案有多种。例如，如图5所示，光发射装置2中第一激光发射器21、第二激光发射器22和第三激光发射器23可以均单独封装，且间隔分布在壳体10上。又如，第一激光发射器21、第二激光发射器22和第三激光发射器23中的任两个集成封装为一体结构，第一激光发射器21、第二激光发射器22和第三激光发射器23中的剩余一个单独封装，可以提高光发射装置2的集成度，缩小了光发射装置2的体积，有利于光器件200的小型化。并且，单独封装的一个激光发射器与集成封装的另外两个激光发射器在壳体10上间隔分布，可以便于多个滤波片41的安装及实现光路分离。又如，第一激光发射器21、第二激光发射器22和第三激光发射器23集成封装为一体结构，进一步提高了光发射装置2的集成度，缩小光发射装置2的体积，有利于光器件200的小型化。
同理，光接收装置3中第一光接收器31、第二光接收器32和第三光接收器33的结构可以与上述实施例中光发射装置2中的第一激光发射器21、第二激光发射器22和第三激光发射器23的结构类似。
例如，如图5所示，光接收装置3中的第一光接收器31、第二光接收器32和第三光接收器33可以均单独封装，且间隔分布在壳体10上。又如，第一光接收器31、第二光接收器32和第三光接收器33中的任两个集成封装为一体结构，第一光接收器31、第二光接收器32和第三光接收器33中的剩余一个单独封装，提高了光接收装置3的集成度，缩小了光接收装置3的体积，有利于光器件200的小型化。并且，单独封装的一个光接收器与集成封装的另外两个光接收器在壳体10上间隔设置，以便于多个滤波片41的安装及实现光路分离。又如，第一光接收器31、第二光接收器32和第三光接收器33集成封装为一体结构，进一步提高光发射装置2的集成度，缩小光发射装置2的体积，有利于光器件200的小型化。
并且，不管上述光发射装置2中第一激光发射器21、第二激光发射器22和第三激光发射器23是分别单独封装，还是两个或三个集成封装为一体结构的实施例，第一激光发射器21、第二激光发射器22和第三激光发射器23的单独封装形式或集成封装形式均可以为同轴(transistor outline，TO)封装或盒式(BOX)封装，本申请对此不作限制。同理，不管光接收装置3中第一光接收器31、第二光接收器32和第三光接收器33是分别单独封装，还是两个或三个集成封装在一起的实施例，第一光接收器31、第二光接收器32和第三光接收器33的单独封装形式或集成封装形式均可以为同轴封装或盒式封装，本申请对此不作限制。
需要说明的是，在光发射装置2中两个或三个激光发射器集成为一体结构时，可以将部分滤波片410， 如第四滤波片组41d中的所有或部分滤波片410，与两个或三个激光发射器集成在同一个管壳中。同理，在光接收装置3中两个或三个光接收器集成为一体结构时，可以将部分滤波片410，如第一滤波片组41a、第二滤波片组41b或第三滤波片组41c中的所有或部分滤波片410，与两个或三个光接收器集成在同一个管壳中。
需要注意的是，本申请光器件200的光学膜片组件4除了包含上述多个滤波片41，还可以包括如图5所示的隔离器42、准直透镜43等器件，本申请对此不作限制。隔离器42用于减少光信号对光发射装置2的串扰问题。准直透镜43用于将汇聚光转换为平行光或将平行光转换为汇聚光。
为了实现上述光器件200中不同的光发射装置2和光接收装置3的封装结构及分布方式，需要将上述多个滤波片41设置在壳体10内的不同位置。当将多个滤波片41与壳体10组装时，若壳体10的内壁上固定设有多个如图7所示的固定架101，固定架101可以与壳体10一体成型设置。固定架101具有与滤波片410大小和形状匹配的槽口。整个滤波片410的外周均与固定架101的槽口连接。多个滤波片41在壳体10内的位置固定，无法调节。由于多个固定架101和壳体10在制作过程或组装过程中会容易出现误差，使得滤波片410在壳体10内的预设安装位置和角度出现偏差，导致一个或多个滤波片的分波曲线发生变化，对光信号分波不准确。尤其是，对于间距较小的滤波片410，具有安装误差的滤波片410会使得光路分光准确度较差，严重影响光器件200对GPON、10G PON、50G PON光信号同时收发准确。
所以，为了解决该问题，在本申请的一些实施例中，壳体10内形成有贴装面102。图8示出的贴装面102与XZ平面平行。滤波片410的侧面可以通过胶粘方式与贴装面102连接。图9示出的滤波片410为长方体，滤波片410具有四个侧面4101。滤波片410的一个侧面4101a通过胶粘方式与贴装面102连接，如图10所示。滤波片410的形状也可以为其他形状，本申请对此不做限制。
在安装滤波片410时，可以先在壳体10的贴装面102上对应滤波片410的预设安装位置点胶(具体可以为滴环氧胶)。之后，在贴装过程以滤波片410的边线或边角为贴装参考，微调滤波片410的安装位置和安装角度(如图10所示旋转滤波片410)直至达到预设安装位置和预设安装角度。还可以结合有源贴装方式(即通过光接口1输入检测光，通过检测装置检测检测经滤波片410的检测光是否达到目标出光角度)来确定滤波片410是否达到预设安装位置和预设安装角度。再对胶层进行固化，使得滤波片410固定在壳体10上。因此，多个滤波片41可以在壳体10内进行精准安装。从而，降低了装配误差，确保多个滤波片41的分波准确性。
需要说明的是，根据滤波片410的安装位置，壳体10内的贴装面102可以为一个，也可以为两个或两个以上，以便于将间隔设置的多个滤波片41均采用上述侧面贴装方式固定在壳体10上，保证了多个滤波片41的安装精度均较高。
此外，在一些实施例中，参照图11，光器件200还包括Z-block滤波片组件40。如图12所示，Z-block滤波片组件40包括上述多个滤波片41中的一个或多个滤波片、以及调节支撑件401。以Z-block滤波片组件40包括上述多个滤波片41中的两个滤波片410，这两个滤波片410均设置在调节支撑件401上为例。两个滤波片410可以采用粘接方式固定在调节支撑件401上。调节支撑件401也可以粘接方式固定在壳体10上。示例的，调节支撑件401可以为调节支架，也可以为调节棱镜，本申请对此不作限制。
并且，由于调节支撑件401的体积有限，两个滤波片410之间的间距较小，所以适用于激光发射装置2中两个或两个以上的激光发射器集成在一起、或者光接收装置3中两个或两个以上的光接收器集成在一起的场景。图11所示的光接收装置3中第一光接收器31和第二光接收器32集成为一体结构。
并且，以调节支撑件401为调节棱镜为例，调节棱镜与壳体10的粘接组装过程与上述实施例中滤波片410的侧面贴装在壳体10的贴装面102的粘接组装过程相同。即将调节棱镜通过胶粘材料(如环氧胶)预安装在壳体10内，再以调节棱镜自身的边线或边角为贴装参考，微调调节棱镜以改变滤波片410的安装位置和安装角度直至达到预设安装位置和预设安装角度。还可以结合有源贴装方式(即光接口1输入检测光，通过检测装置检测检测经滤波片410的检测光是否达到目标出光角度)来确定滤波片410是否达到预设安装位置和预设安装角度。再对胶层进行固化，使得滤波片410固定在壳体10上。因此，Z-block滤波片组件40中的滤波片410也可以进行精准安装，降低了装配误差，确保滤波片410的分波准确性。
需要说明的是，Z-block滤波片组件40除了具有上述一个或多个滤波片和调节支撑件401，还可以根据光路需要设置其他光学膜片，如反射膜或反射镜。反射膜可以直接贴装在调节棱镜上，反射镜可以直接安装在调节支架上。图12所示的调节支撑件401为调节棱镜，调节棱镜401上贴装有反射膜402。并且，本申请实施例对光器件200中Z-block滤波片组件40的数量不作限制，可以为一个，也可以两个或两个以 上。
除了上述两种方式可以保证滤波片410能够在壳体10上精准安装，在本申请的一些实施例中，光器件200还包括如图13所示的调节架5，上述滤波片410可以安装在调节架5上，如滤波片410采用粘接方式固定在调节架5上。而调节架5与壳体10的内壁连接。在滤波片410、调节架5及壳体10进行组装时，可以先将滤波片410固定在调节架5上。之后，再将调节架5与壳体10活动连接(如可旋转连接)。例如，如图13所示，调节架5包括安装托架51和调节底座52，滤波片410安装在安装托架51上。调节底座52可以为圆柱形，壳体10上开设有配合孔，调节底座52可旋转安装在该安装孔内。安装托架51固定连接在调节底座52的一侧端面上，调节底座52的另一端面上形成有如图14所示的调节槽521。调节工具可以为具有与调节槽521形状配合的扳手。将扳手插入该调节槽521来施加旋转力，使得调节底座52在配合孔内旋转，以调节滤波片410的安装角度。如图15所示，光接口1输入有检测光，通过检测装置可以检测经滤波片410的检测光是否达到预设出光角度θ。从而，确定滤波片410是否达到预设安装角度，以保证滤波片410的安装精度，确保分波准确性。最后，再通过如粘接方式将滤波片410固定在调节架5上。
但是，上述调节架5在组装过程中需采用手动方式进行调节，操作较麻烦。因此，在本申请的一些实施例中，光器件200还包括如图16所示的驱动件6，驱动件6与调节架5传动连接。在光器件200组装时，可以通过驱动件6带动调节架5旋转，实现了自动调整滤波片410的安装角度的功能。具体地，该驱动件6可以为驱动电机。
可以理解的是，光器件200可以包括多个调节架5，多个滤波片41分别对应安装在多个调节架5上。例如，光器件200中调节架5和滤波片410的数量相同。多个滤波片41一一对应安装在多个调节架5上。
对于壳体10内空间较小的一些光器件200，无法在壳体10内安装与多个滤波片41数量相等的调节架5。因此，在一些实施例中，光器件200中调节架5的数量小于滤波片410的数量。即上述多个滤波片41中仅有部分滤波片410可以对应安装在调节架5上。示例的，多个滤波片41中的部分滤波片410具有将光信号反射至其他滤波片410的功能，可以选择将接收被反射的光信号的滤波片410安装在调节架5上。因此，即使反射光信号的滤波片410具有安装误差，接收具有出光角度误差的光信号的滤波片410也不会将该误差进一步放大，减少了安装误差对分波准确性的影响。
以下结合具体的几个示例对光器件200中的光发射装置2、光接收装置3、光学膜片组件4的结构和分布方式进行说明。
示例1
参照图17和图18，本示例的光器件200包括壳体10，壳体10上设有光接口1、光发射装置2及光接收装置3。其中，光发射装置2包括均单独封装的第一激光发射器21、第二激光发射器22和第三激光发射器23。光接收装置3包括均单独封装的第一光接收器31、第二光接收器32和第三光接收器33。图17示出的第一激光发射器21、第二激光发射器22和第三激光发射器23、第一光接收器31、第二光接收器32和第三光接收器33均采用同轴封装。第一激光发射器21、第二激光发射器22、第三激光发射器23、第一光接收器31、第二光接收器32和第三光接收器33间隔设置在壳体10上。并且，相较于光发射装置2，光接收装置3中的第一光接收器31、第二光接收器32和第三光接收器33位于靠近光接口1的部分壳体10。第一激光发射器21、第二激光发射器22和第三激光发射器23分别用于发射第一通信协议、第二通信协议及第三通信协议的光信号。第一光接收器31、第二光接收器32和第三光接收器33分别用于接收第一通信协议、第二通信协议及第三通信协议的光信号。
示例的，第一激光发射器21、第二激光发射器22和第三激光发射器23中的一个与光接口1相对设置。例如，图17所示的第二激光发射器22与光接口1相对设置。第一激光发射器21、第三激光发射器23、第一光接收器31、第二光接收器32和第三光接收器33位于第一激光发射器21与光接口1之间的位置。并且，沿距离光接口1由远至近的方向依次设置第三激光发射器23、第一激光发射器21、第三光接收器33、第二光接收器32及第一光接收器31。
上述壳体10内安装有光学膜片组件4，光学膜片组件4包括多个滤波片41，多个滤波片41包括第一滤波片组41a、第二滤波片组41b、第三滤波片组41c及第四滤波片组41d。
其中，第一滤波片组41a包括第一滤波片411和第二滤波片412。第一滤波片411和第二滤波片412均位于第一光接收器31接收第一通信协议的光信号的光路上，且沿第一光接收器31的入光方向依次设置。第一滤波片411与光接口1相对设置。第一滤波片411可以将光接口1发出的第一合并光信号(包含第一 通信协议的光信号、第二通信协议的光信号及第三通信协议的光信号)中的第一通信协议的光信号与第二通信协议的光信号、第三通信协议的光信号分离。第一滤波片411可以将光接口1发出的第一合并光信号中的第一通信协议的光信号反射至第二滤波片412，并允许第一合并光信号中的第二通信协议的光信号和第三通信协议的光信号透射。第二滤波片412可以将经第一滤波片411反射的第二通信协议的光信号反射至第一光接收器31。
第二滤波片组41b包括第三滤波片413和第四滤波片414，第三滤波片413和第四滤波片414均位于第二光接收器32接收第二通信协议的光信号的光路上，且沿第二光接收器32的入光方向依次设置。第三滤波片413位于第一滤波片411的透射光路上。第三滤波片413用于将经第一滤波片411透射后的第二合并光信号(包含第二通信协议的光信号和第三通信协议的光信号)中的第二通信协议的光信号与第三通信协议的光信号分离。第三滤波片413允许第二合并信号中的第三通信协议的光信号透射，而将第二通信协议的光信号反射至第四滤波片414。第四滤波片414可以将经第三滤波片413反射的第二通信协议的光信号反射至第二光接收器32。
第三滤波片组41b包括第五滤波片415和第六滤波片416，第五滤波片415和第六滤波片416均位于第三光接收器33接收第三通信协议的光信号的光路上，且沿第三光接收器33的入光方向依次设置。第五滤波片415位于第三滤波片413的透射光路上。第五滤波片415用于将第三滤波片413透射的第三通信协议的光信号反射至第六滤波片416。第六滤波片416可以将经第五滤波片415反射的第三通信协议的光信号反射至第三光接收器33。
上述多个滤波片41中仅有第一滤波片411位于三个光接收器的入光光路重合的位置，第三滤波片413位于两个光接收器的入光光路重合的位置。因此，第一光接收器31、第二光接收器32及第三光接收器33相互影响较小。例如，第二滤波片412不会影响第三滤波片413、第四滤波片414的安装。上述多个滤波片41的分布方式适用于第一光接收器31、第二光接收器32及第三光接收器33均单独封装且间距较大的光器件200。
可以理解的是，当第一激光发射器21、第二激光发射器22、第三激光发射器23、第一光接收器31、第三光接收器33及第二光接收器32在壳体10上的分布位置交换时，上述多个滤波片41与第一光接收器31、第二光接收器32、第三光接收器33的光路对应关系也相应发生改变，此处不再一一赘述。
基于上述滤波片410的设置，为了避免杂质光信号进入第一光接收器31、第二光接收器32及第三光接收器33，在一些实施例中，如图19和图20所示，第一滤波片组41a还包括第七滤波片417，第七滤波片417位于第二滤波片412的反射光路上，且与第一光接收器31相对设置。第七滤波片417可以将第二滤波片412反射的第一通信协议的光信号中的杂质光信号过滤，允许过滤后的第一通信协议的光信号透射至第一光接收器31。
同理，第二滤波片组41b还包括第八滤波片418，第八滤波片418位于第四滤波片414的反射光路上，且与第二光接收器32相对设置。第八滤波片418可以将第四滤波片414反射的第二通信协议的光信号中的杂质光信号过滤，允许过滤后的第二通信协议的光信号透射至第二光接收器32。
同理，第三滤波片组41c还包括第九滤波片419，第九滤波片419位于第六滤波片416的反射光路上，且与第三光接收器33相对设置。第九滤波片419可以将第六滤波片416反射的第三通信协议的光信号中的杂质光信号过滤，允许过滤后的第三通信协议的光信号透射至第三光接收器33。从而，可以避免杂质光信号进入第一光接收器31、第二光接收器32及第三光接收器33内。
第二激光发射器22到光接口10的光路与第三激光发射器23到光接口10的光路相交。第四滤波片组41b包括第十滤波片420和第十一滤波片421，第十滤波片420位于第二激光发射器22到光接口10的光路与第三激光发射器23到光接口10的光路上。第一激光发射器21到光接口10的光路与第十滤波片420的出射光路相交。第十一滤波片421位于第一激光发射器21到光接口10的光路与第十滤波片420的出射光路相交处。第十滤波片420将第二激光发射器22发射的第二通信协议的光信号与第三激光发射器23发射的第三通信协议的光信号合并为第三合并光信号，并允许第三合并光信号透射至第十一滤波片421。第十一滤波片421将第一激光发射器2发射的第一通信协议的光信号与第三合并光信号合并为第四合并光信号，并透射至光接口1。
图20示出的第一滤波片411、第三滤波片413及第五滤波片415均位于第一激光发射器21、第二激光发射器22和第三激光发射器23的出光光路上。并且，第五滤波片415、第三滤波片413及第一滤波片411依次位于光发射装置2的出光光路上。第五滤波片415、第三滤波片413及第一滤波片411还均用于 允许第一激光发射器21发射的第一通信协议的光信号、第二激光发射器22发射的第二通信协议的光信号及第三激光发射器23发射的第三通信协议的光信号合并透射至光接口1。所以，第十一滤波片421导出的第四合并光信号可以依次经第五滤波片415、第三滤波片413及第一滤波片411透射至光接口1。
对于壳体10内空间较大的光器件200，光器件200可以包括十一个调节架5，上述十一个滤波片410可以分别一一对应设置在十一个调节架5上。十一个调节架5与壳体10的内壁连接。在调节架5与壳体10组装时，通过调整调节架5的安装位置和安装角度来调节滤波片410的安装位置和安装角度。从而，保证十一个滤波片41可以进行精准安装，降低了装配误差，确保了分波准确性。
并且，在一些实施例中，本示例的光器件200还包括多个驱动件6，上述多个调节架5还可以与一个或多个驱动件6传动连接。该驱动件6具体为驱动电机。从而，实现自动调整滤波片410的安装角度。
但是，图20所示的光器件200中壳体10内的空间较小，因此，仅可以在壳体10内设置少量调节架5。如图21所示，光器件200可以包括三个调节架5，三个调节架5分别为第一调节架501、第二调节架502、第三调节架503。上述第二滤波片412安装在第一调节架501上，第四滤波片414安装在第二调节架502上，第六滤波片416安装在第三调节架503上。所以，即使第一滤波片411、第三滤波片413及第五滤波片415具有安装误差，由于第二滤波片412、第四滤波片414及第六滤波片416安装精准，所以，第二滤波片412不会在反射时将第一滤波片411的安装误差放大，第四滤波片414不会在反射时将第三滤波片413的安装误差放大，第六滤波片416不会在反射时将第五滤波片415的安装误差放大。从而，多个滤波片41的安装误差可以降低至±0.3°以下，保证了光器件200中多个滤波片41的分波准确度。
并且，在一些实施例中，第一调节架501、第二调节架502、第三调节架503可以均与驱动件6传动连接。第一调节架501、第二调节架502、第三调节架503可以与同一个驱动件6传动连接。或者，第一调节架501、第二调节架502、第三调节架503可以分别与三个驱动件6一一传动连接。本申请对此不作限制。
基于以上，上述结构的光器件200可以如下组装方法进行组装：
S101：将多个滤波片41活动安装在壳体10内的预设参考位置。
示例的，对于光器件200中的滤波片410和调节架5数量相等，如光器件200包括十一个滤波和十一个调节架5，则上述S101具体包括：
先将多个滤波片41分别对应设置在多个调节架5上。之后，再将多个滤波片41与调节架5的组装件分别与壳体10活动连接。
对于光器件200中滤波片410的数量大于调节架5的数量，则上述S101具体包括：
将多个滤波片41中的至少一个滤波片410固定安装在调节架5上，并将滤波片410与调节架5的组装件、以及多个滤波片41中剩余滤波片410均活动安装在壳体10内。
需要说明的是，调节架5与壳体10活动连接具体可以为通过机械方式可旋转方式连接，也可以直接通过需要专门固化操作的胶粘材料连接。
S102：将检测光输入光接口1，按照光路顺序，依次通过调节架5来调节滤波片410的安装角度，直至检测光通过滤波片410导出或导入的光束角度达到预设角度，再将调节架5与壳体10固定。
示例的，以图21所示的光器件200为例，可以先通过第一调节架501调节第二滤波片412的安装角度，再通过第二调节架502调节第五滤波片415的安装角度，之后通过第三调节架503调节第八滤波片418的安装角度。其中，第一调节架501、第二调节架502及第三调节架503可以采用手动方式调节，也可以采用自动方式调节。
若调节架5与壳体10通过机械方式可旋转方式连接，则上述调节架5与壳体10固定连接的方式具体可以为：将调节架5与壳体10可以通过焊接或胶粘方式直接固定。
若调节架5与壳体10需要专门固化操作的胶粘材料连接，则上述调节架5与壳体10的固定连接的方式具体可以为：将调节架5与壳体10之间的胶粘材料进行固化。例如。先对调节架5与壳体10之间的胶粘材料进行预固化操作，具体可以通过UV光进行固化。之后，再对调节架5与壳体10之间的胶粘材料进行进一步固化操作，具体可以采用光固化或热固化工艺。
此外，本示例中壳体10的内壁上可以形成有图22所示的贴装面102。多个滤波片41可以全部粘结在贴装面102上，也可以仅一个或几个滤波片410粘贴在贴装面102上。从而，多个滤波片41的安装误差可以降低至±0.3°以下，保证了光器件200中滤波片410的分波准确性。图22示出的壳体10内形成有一个贴装面102，该贴装面102与XZ平面平行。多个滤波片41均贴装在该贴装面102上。
对应地，上述光器件200中的多个滤波片41可以采用如下组装方法进行组装：
S201：按照滤波片410在壳体10内的预设参考方位，在壳体10内的贴装面102上进行点胶。
示例的，根据壳体10上光发射装置2和光接收装置3的分布位置，设计多个滤波片41在壳体10的贴装面102上的安装位置和安装角度，以满足多个滤波片41的分波特性。该安装位置为预设安装位置，安装角度为预设安装角度。在壳体10的贴装面102上多个滤波片41的预设安装位置进行点胶。
S202：将滤波片410的侧面4101贴合在贴装面102上的胶层上，并以滤波片410的边线或边角为安装参考，调整滤波片410的安装角度直至到达预设安装角度。
示例的，将任一滤波片410的一个侧面4101贴合在贴装面102的胶层上。以该滤波片410自身的边线或边角为安装参考，调整滤波片410的安装角度，直至滤波片410的安装角度到达预设安装角度。之后，根据光路顺序依次重复上述步骤对多个滤波片41进行安装角度调整。
S203：对滤波片410的侧面4101与贴装面102之间的胶层进行固化。
示例的，可以先对滤波片410的侧面4101与贴装面102之间的胶层进行预固化操作，具体可以通过UV光进行固化。之后，再在对滤波片410的侧面4101与贴装面102之间的胶层进行进一步固化操作，具体可以采用光固化或热固化工艺。
需要说明的是，本示例中光学膜片组件4还包括如图21所示的隔离器42和准直透镜43。其中，隔离器42的数量可以为一个，该隔离器42设置在光发射装置2中第一激光发射器21、第二激光发射器22及第三激光发射器23的出射光路上。从而，可以同时对第一激光发射器21、第二激光发射器22及第三激光发射器23均进行防光信号串扰保护。隔离器42的数量也可以三个，如图22所示，三个隔离器42分别为第一隔离器42a、第二隔离器42b、第三隔离器42c。第一隔离器42a与第一激光发射器21的出光口相对设置，第二隔离器42b与第二激光发射器22的出光口相对设置，第三隔离器42c与第三激光发射器23的出光口相对设置。从而，第一隔离器42a可以对第一激光发射器21进行防光信号串扰保护。第二隔离器42b可以对第二激光发射器22进行防光信号串扰保护。第三隔离器42c可以对第三激光发射器23进行防光信号串扰保护。
准直透镜43可以为两个，两个准直透镜43分别为第一准直透镜431、第二准直透镜432。第一准直透镜431设置在光接口1靠近壳体10内腔的光口处。第一准直透镜431用于将从光接口1导入的汇聚光转换为平行光。第二准直透镜432设置在第十一滤波片421与第五滤波片415之间。第二准直透镜432用于将经第十一滤波片421合并的第四合并光信号从汇聚光转换为平行光。第一准直透镜431还用于将经第一滤波片411出射的平行光转换为汇聚光并导入光接口1。
示例2
本示例中的光器件200与示例1的结构类似，区别在于：本示例光器件200中光发射装置2的第一激光发射器21、第二激光发射器22及第三激光发射器23中的任两个集成封装为一体结构，剩余一个单独封装。所以，本示例的光发射装置2的集成度较高，缩小了光发射装置2的体积，有利于光器件200的小型化。
图23示出的第二激光发射器22、第三激光发射器23封装为一体结构。并且，第二激光发射器22和第三激光发射器23可以采用盒式封装或同轴封装为一体结构。第一激光发射器21可以采用盒式封装或同轴封装。图23示出的第二激光发射器22和第三激光发射器23采用同轴封装集成为一体结构，第一激光发射器21也采用同轴封装。
继续参照图23，上述封装为一体结构的第二激光发射器22和第三激光发射器23可以与光接口1相对设置。第一激光发射器21与一体结构的第二激光发射器22和第三激光发射器23间隔设置，且第一激光发射器21位于一体结构的第二激光发射器22和第三激光发射器23靠近光接口1的一侧。
并且，本示例的光器件200还包括调节支撑件401和反射膜402，调节支撑件401具体可以为调节棱镜。反射膜402和第十滤波片420均贴合在调节棱镜上，以组成Z-block滤波片组件40。反射膜402位于一体结构的第二激光发射器22和第三激光发射器23中的第三激光发射芯片的发射光路上。反射膜402的反射光路与一体结构的第二激光发射器22和第三激光发射器23中的第二激光发射芯片的发射光路相交。第十滤波片420位于反射膜402的反射光路与一体结构的第二激光发射器22和第三激光发射器23中的第二激光发射芯片的发射光路的相交处。一体结构的第二激光发射器22和第三激光发射器23中的第三激光发射芯片发射的第三通信协议的光信号经调节棱镜、被反射膜402反射至第十滤波片420。一体结构的第二激光发射器22和第三激光发射器23中的第二激光发射芯片发射的第二通信协议的光信号进入第十滤波 片420。第十滤波片420将第二通信协议的光信号和第三通信协议的光信号合并为第三合并光信号，并将第三合并光信号透射至第十一滤波片421。
此外，在一些实施例中，如图23所示，Z-block滤波片组件40与第二激光发射器22、第三激光发射器23集成在同一个管壳中。
可以理解的是，上述调节棱镜也可以更换为调节支架，上述反射膜402也可以更换为反射镜，本申请对此不作限制。
示例3
参照图24，本示例中的光器件200与示例1的结构类似，区别在于：本示例光器件200中光发射装置2的第一激光发射器21、第二激光发射器22及第三激光发射器23集成封装在一起。所以，本示例的光发射装置2的集成度高，缩小了光发射装置2的体积，有利于光器件200的小型化。
并且，上述集成封装为一体结构的第一激光发射器21、第二激光发射器22及第三激光发射器23可以采用盒式封装，也可以采用同轴封装。图24示出的第一激光发射器21、第二激光发射器22及第三激光发射器23采用盒式封装为一体结构。
继续参照图24，上述封装为一体结构的第一激光发射器21、第二激光发射器22及第三激光发射器23可以与光接口1相对设置。并且，本示例的光器件200还包括调节支撑件401、第一反射膜4021和第二反射膜4022，调节支撑件401具体为调节棱镜。第一反射膜4021、第二反射膜4022、第十滤波片420、第十一滤波片421均贴合在调节棱镜上，以组成Z-block滤波片组件40。第一反射膜4021位于一体结构的第一激光发射器21、第二激光发射器22及第三激光发射器23中的第三激光发射芯片的发射光路上。第一反射膜4021的反射光路与一体结构的第一激光发射器21、第二激光发射器22及第三激光发射器23中的第二激光发射芯片的发射光路相交。第十滤波片420位于第一反射膜4021的反射光路与一体结构的第一激光发射器21、第二激光发射器22及第三激光发射器23中的第二激光发射芯片的发射光路的相交处。第二反射膜4022位于第十滤波片420的反射光路上。一体结构的第一激光发射器21、第二激光发射器22及第三激光发射器23中的第一激光发射芯片的发射光路与第二反射膜4022的反射光路相交。第十一滤波片421位于一体结构的第一激光发射器21、第二激光发射器22及第三激光发射器23中的第一激光发射芯片的发射光路与第二反射膜4022的反射光路的相交处。
一体结构的第一激光发射器21、第二激光发射器22及第三激光发射器23中第三激光发射芯片发射的第三通信协议的光信号经调节棱镜、被第一反射膜4021反射至第十滤波片420。一体结构的第一激光发射器21、第二激光发射器22及第三激光发射器23中第二激光发射芯片发射的第二通信协议的光信号进入第十滤波片420。第十滤波片420将第二通信协议的光信号和第三通信协议的光信号合并为第三合并光信号，并将第三合并光信号经调节棱镜透射至第二反射膜4022。第二反射膜4022将第三合并光信号反射至第十一滤波片421。一体结构的第一激光发射器21、第二激光发射器22及第三激光发射器23中第一激光发射芯片发射的第一通信协议的光信号进入第十一滤波片421。第十一滤波片421将第一通信协议的光信号与第三合并光信号合并为第四合并光信号，并透射至光接口1。
此外，在一些实施例中，如图24所示，Z-block滤波片组件40与第一激光发射器21、第二激光发射器22、第三激光发射器23集成在同一个管壳中。
可以理解的是，上述调节棱镜也可以更换为调节支架，上述第一反射膜4021和第二反射膜4022也可以更换为反射镜，本申请对此不作限制。
示例4
本示例中的光器件200与示例1的部分结构类似，区别在于：参照图25和图26，本示例光器件200中第一滤波片组41a包括第一滤波片411、第二滤波片412和第三滤波片413。第一滤波片411、第二滤波片412、第三滤波片413均位于第一光接收器31、第二光接收器32、第三光接收器33的接收光路上。并且，第一滤波片411、第二滤波片412及第三滤波片413沿第一光接收器31的入光方向依次分布。第一滤波片411将光接口1发出的包含第一通信协议的光信号、第二通信协议的光信号、第三通信协议的光信号的第一合并光信号反射至第二滤波片412。第二滤波片412将第一合并光信号反射至第三滤波片413。第三滤波片413将第一通信协议的光信号与第二通信协议的光信号、第三通信协议的光信号分离。第三滤波片413可以将第二通信协议的光信号和第三通信协议的光信号反射，并允许第一通信协议的光信号透射至第一光接收器31。
第二滤波片组41b包括第四滤波片414，第四滤波片414位于第三滤波片413到第二光接收器32的光 路上。第四滤波片414可以将第三滤波片413反射的第三通信协议的光信号反射，并允许第二通信协议的光信号透射至第二光接收器32。从而，第四滤波片414可以将第三滤波片413反射的第二通信协议的光信号和第三通信协议的光信号分离。
第三滤波片组41c包括第五滤波片415，第五滤波片415位于第四滤波片414到第三光接收器33的光路上。第五滤波片415可以将第四滤波片414反射的第三通信协议的光信号反射至第三接收器33。
相较于示例1，本示例中的光接收装置3所需的滤波片410的数量较少，适用于第一光接收器31、第二光接收器32及第三光接收器33在壳体10上间距较小的应用场景。
可以理解的是，当第一光接收器31、第三光接收器33及第二光接收器32在壳体10上的分布位置交换时，上述第一滤波片组41a、第二滤波片组41b及第三滤波片组41c与第一光接收器31、第二光接收器32、第三光接收器33的光路对应关系也相应发生改变，此处不再一一赘述。
基于上述多个滤波片41的设置，为了避免杂质光信号进入第一光接收器31、第二光接收器32及第三光接收器33，在本示例的一些实施例中，参照图27和图28，上述第一滤波片组41a还包括第六滤波片416，第六滤波片416位于第三滤波片413的透射光路上，且与第一光接收器31相对设置。第六滤波片416可以将第三滤波片413透射的第一通信协议的光信号中的杂质光信号过滤，并将过滤后的光信号透射至第一光接收器31。
第二滤波片组41a还包括第七滤波片417，第七滤波片417位于第四滤波片414的透射光路上，且与第二光接收器32相对设置。第七滤波片417可以将第四滤波片414透射的第二通信协议的光信号中的杂质光信号过滤，并将过滤后的光信号透射至第二光接收器32。
第三滤波片组41c还包括第八滤波片418，第八滤波片418位于第五滤波片415的反射光路上，且与第三光接收器33相对设置。第八滤波片418可以将第五滤波片415反射的第三通信协议的光信号中的杂质光信号过滤，并将过滤后的光信号透射至第三光接收器33。
并且，上述第一滤波片411位于第一激光发射器21、第二激光发射器22及第三激光发射器23的出光光路上。第一滤波片411还可以允许第一激光发射器21发射的第一通信协议的光信号、第二激光发射器22发射的第二通信协议的光信号及第三激光发射器23发射的第三通信协议的光信号透射至光接口1。所以，第十一滤波片421导出的第四合并光信号可以依次经第一滤波片411透射至光接口1。
基于以上，上述八个滤波片同样可以采用侧面贴装的方式与壳体10连接，该贴装方案与示例1类似，可以按照第一滤波片411、第二滤波片412、第三滤波片413、第六滤波片416、第四滤波片414、第七滤波片417、第五滤波片415、第八滤波片418的顺序依次进行组装调试，此处不再详细说明。
图28所示的光器件200的内部空间较小，无法在壳体10内设置八个调节架5来分别安装八个滤波片41。所以，可以在壳体10内设置三个调节架5，如图29所示，三个调节架5分别为第一调节架501、第二调节架502、第三调节架503。上述第二滤波片412安装在第一调节架501上，第三滤波片413安装在第二调节架502上，第五滤波片415安装在第三调节架503上。所以，即使第一滤波片411具有安装误差，由于第二滤波片412、第三滤波片413及第五滤波片415安装精准，所以，第二滤波片412和第三滤波片413均不会在反射时将第一滤波片411的安装误差放大，第五滤波片415不会在反射时将第四滤波片414的安装误差放大。从而，多个滤波片41的安装误差可以降低至±0.3°以下，保证了光器件200中滤波片410的分波准确性。其中，也可以将第四滤波片414安装在第三调节架503上，也可以获得上述技术效果。
并且，上述三个调节架5与壳体10的组装调试方式与示例1相同，可以按照第一调节架501、第二调节架502、第三调节架503依次进行组装调试，此处不再详细说明。
示例5
本示例中的光器件200与示例4的部分结构类似，区别在于：本示例光器件200中光接收装置3的第一光接收器31、第二光接收器32及第三光接收器33中的任两个集成封装为一体结构，剩余一个单独封装。所以，本示例的光接收装置3的集成度较高，缩小了光接收装置3的体积，有利于光器件200的小型化。
参照图30，光接收装置3的第二光接收器32和第三光接收器33集成封装为一体结构，第一光接收器31单独封装。并且，第二光接收器32和第三光接收器33采用盒式封装或同轴封装为一体结构。第一光接收器31采用盒式封装或同轴封装。
第二滤波片组41b中的第七滤波片417与一体结构的第二光接收器32和第三光接收器33中的第二光芯片相对设置。第二滤波片组41b可以将第二通信协议的光信号导入一体结构的第二光接收器32和第三光接收器33中的第二光芯片，将第二通信协议的光信号反射至第三滤波片组41c。所以，第二滤波片组 41b可以第二通信协议的光信号与第三通信协议的光信号分离。
第三滤波片组41c中的第八滤波片418与一体结构的第二光接收器32和第三光接收器33中的第三光芯片相对设置。第三滤波片组41c可以将第三通信协议的光信号导入一体结构的第二光接收器32和第三光接收器33中的第三光芯片。
示例6
本示例中的光器件200与示例4的部分结构类似，区别在于：参照图31，本示例光器件200中光接收装置3的第一光接收器31和第二光接收器32集成封装为一体结构，第三光接收器33单独封装。并且，第一光接收器31和第二光接收器32采用盒式封装或同轴封装为一体结构。第三光接收器33采用盒式封装或同轴封装。
在本示例中，第一滤波片组41a包括第一滤波片411、第二滤波片412、第三滤波片413和第六滤波片416。第二滤波片组41b包括第四滤波片414和第七滤波片417。光器件200还包括调节支撑件401和反射膜402，调节支撑件401具体为调节棱镜。第三滤波片413、第四滤波片414、反射膜402均设置在调节支撑件401上，以组成Z-block滤波片组件40。
第一滤波片组41a中的第一滤波片411、第二滤波片412、第三滤波片413和第六滤波片416均位于第一光接收器31的接收光路上，且沿第一光接收器31的入光方向依次设置。第一滤波片411将光接口1发出的包含第一通信协议的光信号、第二通信协议的光信号、第三通信协议的光信号的第一合并光信号反射至第二滤波片412。第二滤波片412将第一合并光信号经调节棱镜反射至第三滤波片413。第三滤波片413将第二通信协议的光信号和第三通信协议的光信号反射，并允许第一通信协议的光信号透射至第六滤波片416。从而，第三滤波片413将第一通信协议的光信号与第二通信协议的光信号、第三通信协议的光信号分离。第六滤波片416与一体结构的第一光接收器31和第二光接收器32中的第一光芯片相对设置。第六滤波片416将第三滤波片413透射的第一通信协议的光信号中的杂质光信号过滤，并将过滤后的光信号透射至第一光接收器31。
上述反射膜402贴合或形成在调节棱镜处于第三滤波片413的反射光路的部分表面上。第二滤波片组41b中的第四滤波片414位于第二光接收器32的接收光路上。并且，第四滤波片414贴合在调节棱镜位于反射膜402的反射光路的部分表面上。第七滤波片417与一体结构的第一光接收器31和第二光接收器32中的第二光芯片相对设置。第四滤波片414和第七滤波片417沿第二光接收器32的入光方向依次设置。反射膜402将第三滤波片413反射的包含第二通信协议的光信号、第三通信协议的光信号的第二合并光信号反射至第四滤波片414。第四滤波片414可以将第三通信协议的光信号反射至第七滤波片417，并允许第二通信协议的光信号透射至第七滤波片417。从而，第四滤波片414可以将第二通信协议的光信号和第三通信协议的光信号分离。第七滤波片417可以将第四滤波片414透射的第二通信协议的光信号中的杂质光信号过滤，并将过滤后的光信号透射至第二光接收器32。
第三滤波片组41c包括第五滤波片415，第五滤波片415位于第四滤波片414的反射光路上，且与第三光接收器33相对设置。第五滤波片415可以将第四滤波片414反射的第三通信协议的光信号中的杂质光信号过滤，并将过滤后的光信号透射至第三光接收器33。
相较于示例5，本示例中的光接收装置3所需的滤波片410的数量减少为七个。并且，本示例中的光学膜片组件4的分布方式适用于第一光接收器31、第二光接收器32、第三光接收器33中任两个集成为一体结构的场景。
并且，同样地，上述第一滤波片411位于第一激光发射器21的出光光路、第二激光发射器22的出光光路及第三激光发射器23的出光光路上。第一滤波片411还可以允许第一激光发射器21发射的第一通信协议的光信号、第二激光发射器22发射的第二通信协议的光信号及第三激光发射器23发射的第三通信协议的合并光信号透射至光接口1。
可以理解的是，上述调节棱镜也可以更换为调节支架，上述反射膜402也可以更换为反射镜，本申请对此不作限制。
并且，上述Z-block滤波片组件40与壳体10可以如下组装方法进行组装：
S301：将滤波片410和Z-BLOCK滤波片组件40活动安装在壳体10内的预设安装位置。
示例的，根据壳体10上光发射装置2和光接收装置3的分布位置，设计多个滤波片41和Z-BLOCK滤波片组件40在壳体10内的安装位置和安装角度，以保证多个滤波片41的分波特性。该安装位置为预设安装位置，安装角度为预设安装角度。在壳体10内壁上多个预设安装位置进行点胶。
S302：将检测光输入光接口1，调节Z-BLOCK滤波片组件40在壳体10内的安装角度，直至检测光通过其他滤波片410、Z-BLOCK滤波片组件40中的滤波片410导出光束的角度达到预设出光角度。
示例的，将Z-BLOCK滤波片组件40的一个侧面贴合在贴装面102上的胶层上。以该调节棱镜自身的边线或边角为安装参考，调整滤波片410的安装角度，直至滤波片410的安装角度到达预设安装角度。其余滤波片410与壳体10内壁的组装调试过程可以与示例1中滤波片410的侧面贴装过程相同，此处不再一一说明。其余滤波片410可以采用固定架101直接与壳体10固定连接，也可以采用侧面贴装方式与壳体10内壁连接。
S303：将Z-BLOCK滤波片组件40与壳体10固定连接。
示例的，可以先对Z-BLOCK滤波片组件40与壳体10内壁之间的胶层、多个滤波片41的侧面与壳体10内壁之间的胶层进行预固化操作，具体可以通过UV光进行固化。之后，再在对Z-BLOCK滤波片组件40与壳体10内壁之间的胶层、多个滤波片41的侧面4101与壳体10内壁之间的胶层进行进一步固化操作，具体可以采用光固化或热固化工艺。
示例7
本示例中的光器件200与示例6的结构类似，区别在于：参照图32，本示例中光器件200的光接收装置3包括第一光接收器31、第二光接收器32及第三光接收器33集成封装为一体结构。光接收装置3的封装形式可以为盒式封装，也可以为同轴封装。所以，本示例的光接收装置3的集成度高，缩小了光接收装置3的体积，有利于光器件200的小型化。
继续参照图32，本示例中Z-BLOCK滤波片组件40还包括第一反射膜4021、第二反射膜4022及第三滤波片组41c中的第五滤波片415。第一反射膜4021位于调节棱镜处于第三滤波片413的反射光路的部分表面上。第四滤波片414位于调节棱镜上处于第一反射膜4021的反射光路的部分表面上。第二反射膜4022位于调节棱镜处于第四滤波片414的反射光路的部分表面上。第五滤波片415位于调节棱镜上处于第二反射膜4022的反射光路的部分表面上。具体光路与上述示例类似，此处不再一一说明。
第三滤波片组41c还包括第八滤波片418，第八滤波片418与一体结构的第一光接收器31、第二光接收器32及第三光接收器33中的第三光芯片相对设置。第八滤波片418将第三滤波片413透射的第三通信协议的光信号中的杂质光信号过滤，并将过滤后的光信号透射至第三光接收器33。
示例8
本示例中的光器件200与示例7的结构类似，区别在于：如图33所示，将本示例中光器件200的Z-block滤波片组件40与第一光接收器31、第二光接收器32、第三光接收器33集成为一体结构。图33所示的封装形式为盒式封装。此时，不需再设置第六滤波片416、第七滤波片417及第八滤波片418。
示例9
本示例中的光器件200与示例8的结构类似，区别在于：如图34所示，本示例光器件200中光发射装置2的第一激光发射器21、第二激光发射器22及第三激光发射器23集成封装在一起。所以，本示例的光发射装置2的集成度高，缩小了光发射装置2的体积，进一步有利于光器件200的小型化。
并且，本示例中光器件200包括第一Z-block滤波片组件40a和第二Z-block滤波片组件40b，第一Z-block滤波片组件40a的组成与示例8中的Z-block滤波片组件40的组成相同，第一Z-block滤波片组件40a中的调节支撑件为第一调节支撑件401a。第一Z-block滤波片组件40a与第一光接收器31、第二光接收器32、第三光接收器33集成为一体结构。
第二Z-block滤波片组件40b与第一激光器21、第二激光器22及第三激光器23集成为一体结构。第二Z-block滤波片组件40b包括第二调节支撑件401b、第三反射膜4023、第四反射膜4024、第十滤波片420和第十一滤波片421。第二调节支撑件401b具体为调节棱镜。第三反射膜4023位于第二调节支撑件401b处于第一激光器21的发射光路的部分表面上。第十滤波片420位于第二调节支撑件401b上处于第三反射膜4023的发射光路的部分表面上。
一体结构的第一激光发射器21、第二激光发射器22及第三激光发射器23中的第三激光发射芯片发射的第三通信协议的光信号经第二调节支撑件401b、被第三反射膜4023反射至第十滤波片420。第十滤波片420将一体结构的第一激光发射器21、第二激光发射器22及第三激光发射器23中的第二激光发射芯片发射的第二通信协议的光信号与第三激光发射芯片发射的第三通信协议的光信号合并为第三合并光信号，并将第三合并光信号反射。
第四反射膜4024位于第二调节支撑件401b处于第十滤波片420的反射光路的部分表面上。第十一滤 波片421位于第二调节支撑件401b上处于第四反射膜4024的反射光路的表面上。
第四反射膜4024将第三合并光信号反射至第十一滤波片421。第十一滤波片421将一体结构的第一激光发射器21、第二激光发射器22及第三激光发射器23中的第一激光发射芯片发射的第一通信协议的光信号与第三合并光信号合并为第四合并光信号，并透射至光接口1。
并且，第二Z-block滤波片组件40b与第一激光发射器21、第二激光发射器22及第三激光发射器23集成封装为一体结构。图34所示的封装形式为盒式封装。
可以理解的是，上述调节棱镜也可以更换为调节支架，上述第三反射膜4023和第四反射膜4024也可以更换为反射镜，本申请对此不作限制。
示例10
本示例中的光器件200与示例9的结构类似，区别在于：如图35所示，本示例光器件200中一体结构的光发射装置2的出光口与一体结构的光接收装置3的入光口朝向同一方向。并且，第一滤波片组41a还包括第十二滤波片422，该第十二滤波片422设置在第二滤波片412与第三滤波片413之间的光路上，且用于将第二滤波片412反射的包含第一通信协议的光信号、第二通信协议的光信号、第三通信协议的光信号的第一合并光信号反射至第三滤波片413。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以所述权利要求的保护范围为准。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以所述权利要求的保护范围为准。

Claims (16)

  1. 一种光器件，其特征在于，包括：
    光接口；
    光发射装置，所述光发射装置包括第一激光发射器、第二激光发射器和第三激光发射器，所述第一激光发射器、所述第二激光发射器及所述第三激光发射器分别用于发射三种不同通信协议的光信号；
    光接收装置，所述光接收装置包括第一光接收器、第二光接收器和第三光接收器，所述第一光接收器、第二光接收器和第三光接收器分别用于接收三种不同通信协议的光信号；
    多个滤波片，所述多个滤波片包括：
    第一滤波片组，所述第一滤波片组位于所述第一光接收器的接收光路上，且用于将从所述光接口导入的包含三种不同通信协议的光信号中第一通信协议的光信号导入所述第一光接收器，并将包含三种不同通信协议的光信号中第二通信协议的光信号和第三通信协议的光信号导出；
    第二滤波片组，所述第二滤波片组位于所述第一滤波片组到所述第二光接收器的光路上，且用于将从所述第一滤波片组导出的第二通信协议的光信号导入所述第二光接收器，并将第三种通信协议的光信号导出；
    第三滤波片组，所述第三滤波片组位于所述第二滤波片组到所述第三光接收器的光路上，且用于将从所述第二滤波片组导出的第三通信协议的光信号导入所述第三光接收器；
    第四滤波片组，所述第四滤波片组位于所述第一激光发射器、所述第二激光发射器及所述第三激光发射器的出射光路上，所述第四滤波片组用于将所述第一激光发射器发射的第一通信协议的光信号、所述第二激光发射器发射的第二通信协议的光信号及所述第三激光发射器发射的第三通信协议的光信号合并并导入所述光接口。
  2. 根据权利要求1所述的光器件，其特征在于，所述光器件还包括壳体，所述多个滤波片均位于所述壳体内，所述壳体的内壁形成有贴装面；所述多个滤波片中至少一个的侧面与所述贴装面粘接。
  3. 根据权利要求1或2所述的光器件，其特征在于，所述光器件还包括：
    壳体，所述多个滤波片均位于所述壳体内；
    Z-block滤波片组件，所述Z-block滤波片组件包括所述多个滤波片中的至少一个、以及调节支撑件，所述Z-block滤波片组件中的滤波片均设置在所述调节支撑件上，所述调节支撑件粘接在所述壳体上。
  4. 根据权利要求1-3中任一项所述的光器件，其特征在于，所述光器件还包括：
    壳体，所述多个滤波片均位于所述壳体内；
    至少一个调节架，所述至少一个调节架连接在所述壳体的内壁上；所述多个滤波片中的至少一个分别设置在所述至少一个调节架上。
  5. 根据权利要求1-4中任一项所述的光器件，其特征在于，所述第一滤波片组包括沿所述第一光接收器的入光方向依次设置的第一滤波片和第二滤波片；所述第一滤波片与所述光接口相对设置，且用于将所述光接口导入的包含三种不同通信协议的光信号中的第一通信协议的光信号反射至所述第二滤波片，并允许包含三种不同通信协议的光信号中的第二通信协议的光信号和第三通信协议的光信号透射；所述第二滤波片用于将所述第一滤波片反射的光信号反射至所述第一光接收器；
    所述第二滤波片组包括沿所述第二光接收器的入光方向依次设置的第三滤波片和第四滤波片，所述第三滤波片位于所述第一滤波片的透射光路上，且用于将经所述第一滤波片透射的所述第二通信协议的光信号反射至所述第四滤波片，并允许所述第三通信协议的光信号透射；所述第四滤波片用于将所述第三滤波片反射的光信号反射至所述第二光接收器；
    所述第三滤波片组包括沿第三光接收器的入光方向依次设置的第五滤波片和第六滤波片；所述第五滤波片位于所述第三滤波片的透射光路上，且用于将经所述第三滤波片透射的所述第三通信协议的光信号反射至所述第六滤波片；所述第六滤波片用于将经所述第五滤波片反射的光信号反射至所述第三光接收器。
  6. 根据权利要求5所述的光器件，其特征在于，所述第一滤波片组还包括位于所述第二滤波片的反射光路上的第七滤波片，所述第七滤波片与所述第一光接收器相对设置，且用于过滤所述第二滤波片反射的光信号中的杂质光信号，并允许过滤后的所述光信号透射至所述第一光接收器；
    所述第二滤波片组还包括位于所述第四滤波片的反射光路上的第八滤波片，所述第八滤波片与所述第二光接收器相对设置，且用于过滤所述第四滤波片反射的光信号中的杂质光信号，并允许过滤后的所述光 信号透射至所述第二光接收器；
    所述第三滤波片组还包括位于所述第六滤波片的反射光路上的第九滤波片，所述第九滤波片与所述第三光接收器相对设置，且用于过滤所述第六滤波片反射的光信号中的杂质光信号，并允许过滤后的所述光信号透射至所述第三光接收器。
  7. 根据权利要求5或6所述的光器件，其特征在于，所述光器件还包括：
    壳体，所述多个滤波片均位于所述壳体内；
    三个调节架，所述三个调节架均连接在所述壳体的内壁上，所述三个调节架分别为：
    第一调节架，所述第二滤波片安装在所述第一调节架上；
    第二调节架，所述第四滤波片安装在所述第二调节架上；
    第三调节架，所述第六滤波片安装在所述第三调节架上。
  8. 根据权利要求1-4中任一项所述的光器件，其特征在于，所述第一滤波片组包括沿所述第一光接收器的入光方向依次设置的第一滤波片、第二滤波片及第三滤波片，所述第一滤波片与所述光接口相对设置，所述第一滤波片用于将所述光接口导入的包含三种不同通信协议的光信号反射至所述第二滤波片；所述第二滤波片用于将所述包含三种不同通信协议的光信号反射至所述第三滤波片；所述第三滤波片用于将所述第二滤波片反射的包含三种不同通信协议的光信号中的第二通信协议的光信号和第三通信协议的光信号反射，并允许第一通信协议的光信号透射至第一光接收器；
    所述第二滤波片组包括位于所述第三滤波片到所述第二光接收器的光路上的第四滤波片，所述第四滤波片用于将所述第三滤波片反射的光信号中的第二通信协议的光信号反射，并允许所述第二通信协议的光信号透射至所述第二光接收器；
    所述第三滤波片组包括位于所述第四滤波片到第三光接收器的光路上的第五滤波片，所述第五滤波片用于将所述第四滤波片反射的第三通信协议的光信号反射至所述第三光接收器。
  9. 根据权利要求8所述的光器件，其特征在于，所述第一滤波片组还包括位于所述第三滤波片的透射光路上的第六滤波片，所述第六滤波片与所述第一光接收器相对设置，且用于过滤所述第三滤波片透射的光信号中的杂质光信号，并将所述光信号透射至所述第一光接收器；
    所述第二滤波片组还包括位于所述第四滤波片的透射光路上的第七滤波片，所述第七滤波片与所述第二光接收器相对设置，且用于过滤所述第四滤波片透射的光信号中的杂质光信号，并将所述光信号透射至所述第二光接收器；
    所述第三滤波片组还包括位于所述第五滤波片的反射光路上的第八滤波片，所述第八滤波片与所述第三光接收器相对设置，且用于过滤所述第五滤波片反射的光信号中的杂质光信号，并将所述光信号透射至所述第三光接收器。
  10. 根据权利要求8或9所述的光器件，其特征在于，所述光器件还包括：
    壳体，所述多个滤波片均位于所述壳体内；
    三个调节架，所述三个调节架均连接在所述壳体的内壁上；所述三个调节架分别为：
    第一调节架，所述第二滤波片安装在所述第一调节架上；
    第二调节架，所述第三滤波片安装在所述第二调节架上；
    第三调节架，所述第四滤波片或所述第五滤波片安装在所述第三调节架上。
  11. 根据权利要求1-10中任一项所述的光器件，其特征在于，所述第二激光发射器到所述光接口的光路与所述第三激光发射器到所述光接口的光路相交，所述第四滤波片组还包括：
    第十滤波片，所述第十滤波片设置在所述第二激光发射器到所述光接口的光路与所述第三激光发射器到所述光接口的光路的相交处；所述第十滤波片用于将所述第二激光发射器发射的第二通信协议的光信号与所述第三激光发射器发射的第三通信协议的光信号合并导出；所述第一激光发射器到所述光接口的光路与所述第十滤波片的出射光路相交；
    第十一滤波片，所述第十一滤波片设置在所述第一激光发射器到所述光接口的光路与所述第十滤波片的出射光路相交处，且用于将所述第十滤波片导出的光信号与所述第一激光发射器发射的第一通信协议的光信号合并导入所述光接口。
  12. 根据权利要求1-11中任一项所述的光器件，其特征在于，所述第一激光发射器、第二激光发射器和第三激光发射器中的任两个集成封装为一体结构；或，所述第一激光发射器、第二激光发射器和第三激光发射器集成封装为一体结构。
  13. 根据权利要求1-12中任一项所述的光器件，其特征在于，所述第一光接收器、第二光接收器和第三光接收器中的任两个集成封装为一体结构；或，所述第一光接收器、第二光接收器和第三光接收器中的任两个集成封装为一体结构。
  14. 根据权利要求1-13中任一项所述的光器件，其特征在于，所述第一激光发射器、所述第二激光发射器、所述第三激光发射器、所述第一光接收器、所述第二光接收器及所述第三光接收器均采用同轴封装或盒式封装。
  15. 一种光通讯设备，其特征在于，包括：
    电路板；
    上述权利要求1-14中任一项所述的光器件，所述光器件电连接在所述电路板上。
  16. 一种用于上述权利要求4、7和10中任一项所述的光器件的组装方法，其特征在于，包括：
    将多个滤波片安装在壳体内的预设参考位置；其中，至少一个滤波片固定安装在调节架上，所述调节架与所述壳体活动连接；
    将检测光输入所述光接口，按照光路顺序，依次通过所述调节架来调节所述滤波片的安装角度，直至所述检测光通过所述多个滤波片导出或导入光束的角度达到预设角度；
    将所述调节架与所述壳体固定。
PCT/CN2023/125171 2022-12-01 2023-10-18 一种光通讯设备、光器件及其组装方法 WO2024114148A1 (zh)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030018024A (ko) * 2003-01-18 2003-03-04 (주) 파이오닉스 광 전송 장치 및 방법
JP2005316291A (ja) * 2004-04-30 2005-11-10 Sumitomo Electric Ind Ltd 光モジュール
CN111624714A (zh) * 2020-06-30 2020-09-04 深圳市亚派光电器件有限公司 光路结构和光器件
CN112698451A (zh) * 2019-10-22 2021-04-23 青岛海信宽带多媒体技术有限公司 一种光模块

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030018024A (ko) * 2003-01-18 2003-03-04 (주) 파이오닉스 광 전송 장치 및 방법
JP2005316291A (ja) * 2004-04-30 2005-11-10 Sumitomo Electric Ind Ltd 光モジュール
CN112698451A (zh) * 2019-10-22 2021-04-23 青岛海信宽带多媒体技术有限公司 一种光模块
CN111624714A (zh) * 2020-06-30 2020-09-04 深圳市亚派光电器件有限公司 光路结构和光器件

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