CN112180521A - Single-fiber bidirectional multi-channel transmission optical module system - Google Patents
Single-fiber bidirectional multi-channel transmission optical module system Download PDFInfo
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- CN112180521A CN112180521A CN202010979416.8A CN202010979416A CN112180521A CN 112180521 A CN112180521 A CN 112180521A CN 202010979416 A CN202010979416 A CN 202010979416A CN 112180521 A CN112180521 A CN 112180521A
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4246—Bidirectionally operating package structures
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/26—Optical coupling means
- G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
- G02B6/293—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means
- G02B6/29379—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means characterised by the function or use of the complete device
- G02B6/2938—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means characterised by the function or use of the complete device for multiplexing or demultiplexing, i.e. combining or separating wavelengths, e.g. 1xN, NxM
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/26—Optical coupling means
- G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
- G02B6/293—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means
- G02B6/29379—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means characterised by the function or use of the complete device
- G02B6/29389—Bandpass filtering, e.g. 1x1 device rejecting or passing certain wavelengths
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- 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
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- 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
- G02B6/4207—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms with optical elements reducing the sensitivity to optical feedback
- G02B6/4208—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms with optical elements reducing the sensitivity to optical feedback using non-reciprocal elements or birefringent plates, i.e. quasi-isolators
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- 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
- G02B6/4214—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms the intermediate optical element having redirecting reflective means, e.g. mirrors, prisms for deflecting the radiation from horizontal to down- or upward direction toward a device
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- 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
Abstract
A single-fiber bidirectional multi-channel transmission optical module system comprises two optical modules and single-mode optical fibers, wherein the two optical modules are interconnected through the single-mode optical fibers; the optical module comprises a transmitting optical path and a receiving optical path, wherein the transmitting optical path comprises a transmitting unit component, an optical filter component and an optical port, and the receiving optical path comprises a receiving unit component, an optical filter component and an optical port; the emission light path is used for synthesizing a plurality of paths of light beams with different wavelengths generated by the current optical module into a path of emission light beam with the same propagation direction through the emission unit assembly, emitting the emission light beam to the single-mode fiber through the optical filter assembly and the light port in sequence, and transmitting the emission light beam to another optical module through the single-mode fiber; the receiving light path is used for receiving a light beam emitted by another optical module through a single-mode fiber and is used as a receiving light beam of the current optical module, the receiving light beam sequentially passes through the light port and the optical filter assembly and is transmitted to the receiving unit assembly, and the receiving light beam is divided into original multiple paths of light beams with different wavelengths through the receiving unit assembly.
Description
Technical Field
The invention relates to the field of optical fiber communication, in particular to a single-fiber bidirectional multi-channel transmission optical module system.
Background
Along with the process of digitization, data processing, storage and transmission are rapidly developed, the development of a supercomputer and a storage-based data center is greatly driven by the rapid growth of search service and video service with large data volume, and the design idea of a data center optical module is to provide higher access density through smaller volume and lower cost, so that the user access capacity is finally improved.
The high-speed bidirectional multichannel wavelength division multiplexing transmission optical module has wide market application prospect. In the high-speed bidirectional multichannel wavelength division multiplexing transmission optical module, the light intercommunication among 2 optical modules is realized by a single optical fiber, and compared with the prior art, if one optical fiber is used, the work which can be completed by two optical fibers is completed, the transmission quantity of the existing optical fiber is doubled, and the optical fiber resource is greatly saved.
Disclosure of Invention
In view of the technical defects and technical drawbacks in the prior art, an embodiment of the present invention provides a single-fiber bidirectional multi-channel transmission optical module system that overcomes or at least partially solves the above problems, and the specific scheme is as follows:
a single-fiber bidirectional multi-channel transmission optical module system comprises two optical modules and a single-mode optical fiber, wherein the two optical modules are interconnected through the single-mode optical fiber; the optical module comprises a transmitting optical path and a receiving optical path, wherein the transmitting optical path comprises a transmitting unit component, an optical filter component and an optical port, and the receiving optical path comprises a receiving unit component, an optical filter component and an optical port;
the emission light path is used for synthesizing a plurality of paths of light beams with different wavelengths generated by the current optical module into a path of light beam with the same propagation direction through the emission unit assembly, namely, an emission light beam, emitting the emission light beam to the single-mode optical fiber through the optical filter assembly and the optical port in sequence, and transmitting the emission light beam to another interconnected optical module through the single-mode optical fiber;
the receiving optical path is used for receiving an emission beam from another interconnected optical module through a single-mode optical fiber and serving as a receiving beam of the current optical module, transmitting the receiving beam to the receiving unit assembly through the optical port and the optical filter assembly in sequence, and dividing the receiving beam into original multiple paths of beams with different wavelengths through the receiving unit assembly.
Further, the emission light beam includes four wavelengths, which are λ 1, λ 2, λ 3 and λ 4; the received light beam comprises four wavelengths, namely lambda 5, lambda 6, lambda 7 and lambda 8;
further, the optical filter assembly comprises a three-piece synthetic optical filter assembly, the three-piece synthetic optical filter assembly comprises a first optical filter assembly, a second optical filter assembly and a third optical filter assembly, and the first optical filter assembly, the second optical filter assembly and the third optical filter assembly enclose a triangle; the emission light beam emitted by the emission unit assembly sequentially passes through the first optical filter assembly and the second optical filter assembly and is emitted to the light port; the receiving light beams incident from the light port sequentially pass through the second optical filter component, the first optical filter component and the third optical filter component and then are incident to the receiving unit component; the emission beam emitted by the emission unit component passes through the first optical filter component and the second optical filter component and then is parallel to the emission beam to be emitted to the light port; the received light beam incident from the optical port passes through the second optical filter and the first optical filter in sequence and then is incident to the third optical filter in a direction perpendicular to the received light beam.
Further, the transmitting unit assembly comprises a multipath laser diode, a plurality of first coupling lenses, an optical multiplexing assembly (MUX) and an Isolator;
the multi-path laser diode is used as a carrier for signal transmission, is respectively used for transmitting a plurality of paths of light beams with different wavelengths, and respectively transmits the plurality of paths of light beams with different wavelengths to the plurality of first coupling lenses;
the first coupling lens is used for shaping the received light beam, shaping the divergent light into parallel light and emitting the parallel light to the optical multiplexing component MUX;
the optical wave combination component MUX is used for combining multiple paths of parallel light emitted by the first coupling lenses into one path, the path of parallel light serves as a light emitting beam, and the light emitting beam after combination enters the Isolator;
the Isolator is used for preventing reflected light on the optical transmission link from entering the laser diode to influence the corresponding high-frequency performance of the laser diode, and emitted light beams passing through the Isolator enter the optical filter assembly.
Further, the receiving unit assembly includes an optical wavelength division assembly DEMUX, a plurality of second coupling lenses, and a plurality of photodiodes;
the optical wavelength division component DEMUX is used for dividing the received light beams into original multiple paths of light beams with different wavelengths, and the multiple paths of light beams with different wavelengths after light splitting respectively enter the multiple second coupling lenses;
the second coupling lens is used for converting the entering parallel light into convergent light, and the multiple paths of light beams with different wavelengths enter the photodiode after being converged by the corresponding second coupling lens;
the photodiode is used for converting optical signals into electric signals, so that optical path conversion of multiple paths of optical signals is realized.
Further, the optical filter assembly still includes band pass filter, band pass filter is located between three formula synthesis optical filter assemblies and the receiving element subassembly, and the received beam passes through light mouthful in proper order, three formula synthesis optical filter assemblies and band pass filter and transmits for the receiving element subassembly, band pass filter is used for carrying out selective filtering, and the astigmatism in the received beam is received in the filtering.
Further, the optical filter assembly still includes the light path prism of buckling, the light path prism of buckling is located between band pass filter and the receiving element subassembly, and the received beam is buckled the prism and is transmitted for the receiving element subassembly through light mouth, three formula synthetic optical filter assemblies, band pass filter and light path in proper order, the light path prism of buckling is used for giving the receiving element subassembly with the beam reflection of band pass filter outgoing.
Further, the system also includes an optical adapter and a third coupling lens, the optical adapter and the third coupling lens being positioned between the optical filter assembly and the optical port;
the receiving light beam incident from the light port is incident to the third coupling lens after passing through the light adapter, and is incident to the optical filter assembly after being shaped into parallel light by the third coupling lens;
and after the emission light beam emitted from the emission unit assembly is shaped by the third coupling lens, the corresponding light energy is coupled into the light adapter and is emitted to the light port through the light adapter.
Further, the optical module is packaged by QSFP, QSFP-DD or OSFP.
The invention has the following beneficial effects:
the invention defines a single-fiber bidirectional multichannel wavelength division multiplexing transmission optical module in a limited packaging size shell required by a multi-source agreement (MSA). The high-speed optical signals are interconnected between the two optical modules through single-mode optical fibers, and then signal communication is achieved. The optical module comprises a transmitting unit assembly, a receiving unit assembly and an optical filter assembly, wherein each unit assembly comprises a plurality of optical subunit elements, the optical structure of the conventional whole optical module is complex, the requirement on the positioning precision of each element is high, the displacement deviation required after each optical element is fixed is small, the process is complex, and the problem of mass production is not facilitated.
Drawings
Fig. 1 is a schematic diagram of optical interconnection between two optical modules according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a portion of a packaging system according to an embodiment of the present invention;
FIG. 3 is a diagram illustrating an optical system corresponding to a package according to an embodiment of the present invention;
fig. 4 is an optical path diagram of an optical module system according to an embodiment of the present invention;
FIG. 5 is a diagram of the optical path of a transmitted beam through a filter assembly according to an embodiment of the present invention;
FIG. 6 is an optical path diagram of a received beam through an optical filter assembly according to an embodiment of the present invention;
in the figure: 1. the optical module comprises an optical module, 2, a single mode optical fiber, 11, an optical port, 12, an optical filter component, 13, a transmitting unit component, 14, a receiving unit component, 15, a flexible printed circuit board FPC, 16, a PCBA board, 17, an optical adapter, 18, a third coupling lens, 121, a three-piece type synthetic optical filter component, 122, a band-pass optical filter, 123, an optical path bending prism, 131, an Isolator, 132, an optical multiplexer component MUX, 133, a first coupling lens, 134, a laser diode, 141, an optical demultiplexer component DEMUX, 142, a second coupling lens, 143, a reflector, 144, a photodiode, 145 and TIA.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention has defined a kind of single fiber two-way multichannel transmission optical module system, adopt QSFP, QSFP-DD or OSFP to capsulate, adopt the single mode LC interface, two optical modules 1 can realize the long distance transmission of the high speed when using the optical interconnection of the single mode fiber 2, its basic framework is as shown in figure 1, it includes optical module 1 and single mode fiber 2, said optical module 1 is two, two optical modules 1 are interconnected through the single mode fiber 2; the optical module 1 comprises a transmitting optical path and a receiving optical path, wherein the transmitting optical path comprises a transmitting unit component 13, an optical filter component 12 and an optical port 11, and the receiving optical path comprises a receiving unit component 14, an optical filter component 12 and an optical port 11;
the emission light path is used for synthesizing a plurality of paths of light beams with different wavelengths generated by the current optical module 1 into a path of light beam with the same propagation direction through an emission unit component 13, namely, an emission light beam, emitting the emission light beam to the single-mode fiber 2 through the optical filter component 12 and the light port 11 in sequence, and transmitting the emission light beam to another interconnected optical module 1 through the single-mode fiber 2;
the receiving optical path is used for receiving a transmission beam from another interconnected optical module 1 through a single-mode fiber 2, and as a receiving beam of the current optical module 1, transmitting the receiving beam to a receiving unit assembly 14 through an optical port 11 and an optical filter assembly 12 in sequence, and dividing the receiving beam into original multiple paths of beams with different wavelengths through the receiving unit assembly 14.
As shown in fig. 1, the front optical module 1 generates a plurality of light beams of different wavelengths λ 1, λ 2, λ 3 and λ 4, respectively, and the emitted light beams include four wavelengths λ 1, λ 2, λ 3 and λ 4, respectively. The emission light beam of the further optical module 1 comprises four wavelengths, λ 5, λ 6, λ 7 and λ 8, respectively.
As shown in fig. 2, the two optical modules 1 are optically interconnected, and the two optical modules 1 are a first optical module and a second optical module.
The first optical module can emit four paths of light beams with different wavelengths and receive four paths of light beams with different wavelengths generated by the second optical module, the wavelengths corresponding to the four paths of light beams with different wavelengths emitted by the first optical module are lambda 1, lambda 2, lambda 3 and lambda 4 respectively, the four paths of light beams pass through an optical wave-combining component MUX132 in the module to synthesize one path of light beams with the same propagation direction, namely, emitted light beams, wherein the emitted light beams comprise four wavelengths of lambda 1, lambda 2, lambda 3 and lambda 4, and are transmitted to the optical filter component 12 and then transmitted to the module optical port 11; the received light beam received by the optical port 11 of the first optical module includes four wavelengths λ 5, λ 6, λ 7, and λ 8, and is transmitted to the optical filter component 12, the optical filter component 12 realizes direction selection, transmits the received light beam to the optical demultiplexer DEMUX141, and the optical demultiplexer DEMUX141 demultiplexes one light beam into four light beams with the wavelengths λ 5, λ 6, λ 7, and λ 8.
The second optical module can emit four paths of light beams with different wavelengths and receive the four paths of light beams with different wavelengths generated by the first optical module, the wavelengths corresponding to the four paths of light beams with different wavelengths emitted by the second optical module are lambda 5, lambda 6, lambda 7 and lambda 8 respectively, the four paths of light beams pass through the optical wave-combining component MUX132 in the module to synthesize one path of light beams with the same propagation direction, namely the emitted light beams of the second optical module, and the emitted light beams are transmitted to the optical filter component 12 and then transmitted to the module optical port 11; the received light beam received by the optical port 11 of the second optical module includes four wavelengths λ 1, λ 2, λ 3, and λ 4, and is transmitted to the optical filter component 12, the optical filter component 12 realizes direction selection, transmits the received light beam to the optical demultiplexer DEMUX141, and the optical demultiplexer DEMUX141 demultiplexes one light beam into four light beams with wavelengths λ 1, λ 2, λ 3, and λ 4.
Fig. 2 is a schematic diagram of the components of the packaging system, which includes a PCBA board 16, a receiving unit assembly 14, an emitting unit assembly 13, an optical filter assembly 12, and a flexible printed circuit FPC15, wherein the receiving unit assembly and the emitting unit assembly are electrically connected to the PCBA board through the flexible printed circuit FPC15, respectively.
Packaging the corresponding optical system as shown in fig. 3, the transmitting end includes, from left to right, a flexible circuit board FPC15, a four-way laser diode 134, four first coupling lenses 133, an optical multiplexer MUX132, an Isolator131, an optical filter assembly 12, an optical adapter 17, and an optical port 11. The receiving end comprises a flexible circuit board FPC15, a four-way TIA145, a four-way photodiode 144, a four-way reflector 143, four second coupling lenses 142, an optical wavelength division component DEMUX141, an optical path bending prism 123, a band-pass filter 122, a filter component 12, a third coupling lens 18, an optical adapter 17 and an optical port 11 from left to right.
An optical path diagram of the optical module 1 system is shown in fig. 4, the four first coupling lenses 133 are Lens1, Lens2, Lens3 and Lens4 respectively, the four laser diodes are LD1, LD2, LD3 and LD4 respectively, the four photodiodes 144 are PD1, PD2, PD3 and PD4 respectively, and the four second coupling lenses 142 are Lens5, Lens6, Lens7 and Lens8 respectively; the wavelengths corresponding to the four emission beams are λ 1, λ 2, λ 3, λ 4, respectively, and are shaped into parallel light by the four first coupling lenses Lens1, Lens2, Lens3, Lens4, and then are incident to the optical wave combining component MUX132 for wave combining to form a light beam in the same transmission direction, and then the light beam is transmitted to the three-piece synthesis filter component 121 through the Isolator131, and is shaped by the third coupling Lens 18, and the corresponding light energy is coupled into the optical adapter 17. The wavelengths corresponding to the received light beams are λ 5, λ 6, λ 7 and λ 8 respectively, the received light beams are incident to a third coupling Lens 18 through an optical adapter 17, are shaped into parallel light through the third coupling Lens 18, are incident to a three-piece synthesis filter assembly 121, are selectively filtered through a band-pass filter 122, are transmitted to an optical path bending prism 123, are incident to an optical branching assembly DEMUX141 for branching after the optical path bending action of the optical path bending prism 123, and the corresponding light energy with different wavelengths is shaped into condensed light through four second coupling lenses Lens5, Lens6, Lens7 and Lens8 respectively, and is coupled into 4 photodiodes PD1, PD2, PD3 and PD4 respectively.
The optical filter assembly 12 includes a three-piece type synthetic optical filter assembly 121, where the three-piece type synthetic optical filter assembly 121 includes a first optical filter assembly, a second optical filter assembly, and a third optical filter assembly, and the first optical filter assembly, the second optical filter assembly, and the third optical filter assembly enclose a triangle; the parallel light passing through the Isolator131 enters the three-plate type synthesis filter assembly 121, the transmission path of the corresponding light beam is as shown in fig. 5, and the light beam sequentially passes through the first filter assembly and the second filter assembly to be emitted. The parallel light passing through the third coupling lens 18 enters the three-piece synthesis optical filter 12, and the corresponding light beam transmission path is as shown in fig. 6, and the entering light beam enters the receiving unit module 14 after passing through the second optical filter, the first optical filter and the third optical filter in sequence.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (9)
1. A single-fiber bidirectional multi-channel transmission optical module system is characterized by comprising two optical modules and a single-mode optical fiber, wherein the two optical modules are interconnected through the single-mode optical fiber; the optical module comprises a transmitting optical path and a receiving optical path, wherein the transmitting optical path comprises a transmitting unit component, an optical filter component and an optical port, and the receiving optical path comprises a receiving unit component, an optical filter component and an optical port;
the emission light path is used for synthesizing a plurality of paths of light beams with different wavelengths generated by the current optical module into a path of light beam with the same propagation direction through the emission unit assembly, namely, an emission light beam, emitting the emission light beam to the single-mode optical fiber through the optical filter assembly and the optical port in sequence, and transmitting the emission light beam to another interconnected optical module through the single-mode optical fiber;
the receiving optical path is used for receiving an emission beam from another interconnected optical module through a single-mode optical fiber and serving as a receiving beam of the current optical module, transmitting the receiving beam to the receiving unit assembly through the optical port and the optical filter assembly in sequence, and dividing the receiving beam into original multiple paths of beams with different wavelengths through the receiving unit assembly.
2. The optical module system for single-fiber bidirectional multi-channel transmission according to claim 1, wherein the emission beam comprises four wavelengths λ 1, λ 2, λ 3 and λ 4; the received beam includes four wavelengths, λ 5, λ 6, λ 7, and λ 8.
3. The system of claim 1, wherein the optical filter assembly comprises a three-piece composite optical filter assembly, the three-piece composite optical filter assembly comprising a first optical filter assembly, a second optical filter assembly, and a third optical filter assembly, the first optical filter assembly, the second optical filter assembly, and the third optical filter assembly enclosing a triangle; the emission light beam emitted by the emission unit assembly sequentially passes through the first optical filter assembly and the second optical filter assembly and is emitted to the light port; the received light beam incident from the light port passes through the second optical filter assembly, the first optical filter assembly and the third optical filter assembly in sequence and then enters the receiving unit assembly.
4. The optical module system according to claim 1, wherein the transmitting unit module comprises a plurality of laser diodes, a plurality of first coupling lenses, an optical Multiplexer (MUX) and an Isolator;
the multi-path laser diode is used as a carrier for signal transmission, is respectively used for transmitting a plurality of paths of light beams with different wavelengths, and respectively transmits the plurality of paths of light beams with different wavelengths to the plurality of first coupling lenses;
the first coupling lens is used for shaping the received light beam, shaping the divergent light into parallel light and emitting the parallel light to the optical multiplexing component MUX;
the optical wave combination component MUX is used for combining multiple paths of parallel light emitted by the first coupling lenses into one path, the path of parallel light serves as a light emitting beam, and the light emitting beam after combination enters the Isolator;
the Isolator is used for preventing reflected light on the optical transmission link from entering the laser diode, and emission light beams passing through the Isolator enter the optical filter assembly.
5. The optical module system according to claim 1, wherein the receiving unit assembly comprises an optical wavelength division assembly DEMUX, a plurality of second coupling lenses, and a plurality of photodiodes;
the optical wavelength division component DEMUX is used for dividing the received light beams into original multiple paths of light beams with different wavelengths, and the multiple paths of light beams with different wavelengths after light splitting respectively enter the multiple second coupling lenses;
the second coupling lens is used for converting the entering parallel light into convergent light, and the multiple paths of light beams with different wavelengths enter the photodiode after being converged by the corresponding second coupling lens;
the photodiode is used for converting optical signals into electric signals, so that optical path conversion of multiple paths of optical signals is realized.
6. The optical module system according to claim 3, wherein the optical filter assembly further comprises a band pass filter, the band pass filter is located between the three-piece synthesis optical filter assembly and the receiving unit assembly, the received light beam sequentially passes through the optical port, the three-piece synthesis optical filter assembly and the band pass filter and is transmitted to the receiving unit assembly, and the band pass filter is used for selectively filtering and filtering out the scattered light in the received light beam.
7. The optical module system according to claim 6, wherein the optical filter assembly further comprises an optical path bending prism, the optical path bending prism is located between the band pass filter and the receiving unit assembly, the received light beam sequentially passes through the optical port, the three-piece synthesis filter assembly, the band pass filter and the optical path bending prism and is transmitted to the receiving unit assembly, and the optical path bending prism is configured to reflect the light beam emitted from the band pass filter to the receiving unit assembly.
8. The optical module system according to claim 1, further comprising an optical adapter and a third coupling lens, the optical adapter and the third coupling lens being located between the optical filter assembly and the optical port;
the receiving light beam incident from the light port is incident to the third coupling lens after passing through the light adapter, and is incident to the optical filter assembly after being shaped into parallel light by the third coupling lens;
and after the emission light beam emitted from the emission unit assembly is shaped by the third coupling lens, the corresponding light energy is coupled into the light adapter and is emitted to the light port through the light adapter.
9. The bi-directional multi-channel optical transceiver system of claim 1, wherein the optical transceiver is QSFP, QSFP-DD, or OSFP package.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010979416.8A CN112180521A (en) | 2020-09-17 | 2020-09-17 | Single-fiber bidirectional multi-channel transmission optical module system |
| PCT/CN2021/101385 WO2022057352A1 (en) | 2020-09-17 | 2021-06-22 | Single-fiber bidirectional multi-channel transmission optical module system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010979416.8A CN112180521A (en) | 2020-09-17 | 2020-09-17 | Single-fiber bidirectional multi-channel transmission optical module system |
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| CN112180521A true CN112180521A (en) | 2021-01-05 |
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| CN202010979416.8A Pending CN112180521A (en) | 2020-09-17 | 2020-09-17 | Single-fiber bidirectional multi-channel transmission optical module system |
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| WO (1) | WO2022057352A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022057352A1 (en) * | 2020-09-17 | 2022-03-24 | 武汉联特科技股份有限公司 | Single-fiber bidirectional multi-channel transmission optical module system |
| CN115639650A (en) * | 2022-12-26 | 2023-01-24 | 武汉乾希科技有限公司 | Laser of light transmitting and receiving component and optical module |
| CN116155383A (en) * | 2023-01-13 | 2023-05-23 | 讯芸电子科技(中山)有限公司 | Single-fiber multi-task transmission system |
| US11683095B1 (en) * | 2022-02-25 | 2023-06-20 | Shunyun Technology (Zhong Shan) Limited | Box-type packaged optical transceiver |
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| WO2022057352A1 (en) * | 2020-09-17 | 2022-03-24 | 武汉联特科技股份有限公司 | Single-fiber bidirectional multi-channel transmission optical module system |
| US11683095B1 (en) * | 2022-02-25 | 2023-06-20 | Shunyun Technology (Zhong Shan) Limited | Box-type packaged optical transceiver |
| CN115639650A (en) * | 2022-12-26 | 2023-01-24 | 武汉乾希科技有限公司 | Laser of light transmitting and receiving component and optical module |
| CN115639650B (en) * | 2022-12-26 | 2023-09-15 | 武汉乾希科技有限公司 | Light emitting and receiving component laser and optical module |
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| WO2022057352A1 (en) | 2022-03-24 |
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