CN104730641A - Optical circulator and single-fiber bidirectional optical module using same - Google Patents
Optical circulator and single-fiber bidirectional optical module using same Download PDFInfo
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- CN104730641A CN104730641A CN201510118471.7A CN201510118471A CN104730641A CN 104730641 A CN104730641 A CN 104730641A CN 201510118471 A CN201510118471 A CN 201510118471A CN 104730641 A CN104730641 A CN 104730641A
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- beam splitter
- polarizing beam
- catoptron
- wave plate
- polarized component
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/09—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on magneto-optical elements, e.g. exhibiting Faraday effect
- G02F1/093—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on magneto-optical elements, e.g. exhibiting Faraday effect used as non-reciprocal devices, e.g. optical isolators, circulators
-
- 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
- G02B6/27—Optical coupling means with polarisation selective and adjusting means
- G02B6/2746—Optical coupling means with polarisation selective and adjusting means comprising non-reciprocal devices, e.g. isolators, FRM, circulators, quasi-isolators
-
- 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
- G02B6/4213—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms the intermediate optical elements being polarisation selective optical elements
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Nonlinear Science (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
Abstract
The invention discloses an optical circulator and a single-fiber bidirectional optical module using the same. The optical circulator comprises a transmitting end, a receiving end, a common end, a first polarization beam splitter, a second polarization beam splitter, a half wave plate and a faraday rotator. When the transmitting end transmits parallel direction polarized beams, the parallel direction polarized beams arrive at the common end at least passing the first polarization beam splitter, the half wave plate, the faraday rotator and the second polarization beam splitter in sequence; when the common end sends an optical signal, the optical signal is decomposed into a first polarized component and a second polarized component through the second polarization beam splitter, the polarization direction of the first polarized component is perpendicular to the polarization direction of the second polarized component, the first polarized component arrives at the receiving end at least passing the faraday rotator, the half wave plate and the first polarization beam splitter in sequence, and the second polarized component arrives at the receiving end at least passing the second polarization beam splitter, the faraday rotator, the half wave plate and the first polarization beam splitter in sequence. Only two polarization beam splitters are used, cost is low, and the size is small.
Description
Technical field
The invention belongs to the optical transceiver module in technical field of optical fiber communication, be specifically related to a kind of optical circulator and apply its simplex optical module.
Background technology
In optical communication, the transmitting-receiving of light signal all needs optical fiber to transmit, and the laying of long-distance optical fiber is a great engineering.Usually, identical transmission range needs two different optical fiber to receive and dispatch light signal respectively.Although carry out a large amount of multiplexing research increasing the channel capacity of optical fiber to improve the utilization factor of fiber resource, do not catch up with the great demand of optical communication development to fiber resource far away.
Simplex optical module only carries out the transmitting-receiving of light signal with an optical fiber, save the fiber resource of half.Traditional simplex optical module utilizes WDM(Wavelength Division Multiplexing, wavelength-division multiplex) technology, send and need to use different centre wavelength with the light signal receiving both direction, add module making difficulty, and technical costs is high.
Optical circulator is used for by the light signal of forward transmission and reverse transfer in same optical fiber separately, realizing the launching and receiving of same centre wavelength or different centre wavelength light signal.
Snigle of the prior art, when transmitting terminal and receiving end are positioned at the side of half-wave plate, needs at least three polarizing beam splitters when common port is positioned at the opposite side of half-wave plate.Such Snigle cost is higher.
Summary of the invention
The object of the application is to solve the transmitting and receiving technical matters of simple optical fiber to single wavelength or different wave length light signal.
For achieving the above object, the application one embodiment provides a kind of optical circulator, comprises transmitting terminal, receiving end, common port and optical frames group.Wherein, optical frames group comprises the first polarizing beam splitter, the second polarizing beam splitter, half-wave plate and Faraday rotator; When transmitting terminal launches parallel direction light beam, parallel direction light beam arrives common port through the first polarizing beam splitter, half-wave plate, Faraday rotator and the second polarizing beam splitter at least successively; When common port sends light signal, light signal is through the second polarizing beam splitter, be broken down into mutually perpendicular first polarized component in polarization direction and the second polarized component, first polarized component is at least successively through Faraday rotator, half-wave plate, the first polarizing beam splitter, arrive receiving end, second polarized component, at least successively through the second polarizing beam splitter, Faraday rotator, half-wave plate and the first polarizing beam splitter, arrives receiving end.
As the further improvement of the application one embodiment, transmitting terminal and receiving end are located at the side of half-wave plate, and the opposite side of half-wave plate is located at by common port.
As the further improvement of the application one embodiment, optical frames group also comprises the first catoptron, the second catoptron and the 3rd catoptron, when transmitting terminal launches parallel direction light beam, parallel direction light beam arrives common port through the first catoptron, the first polarizing beam splitter, half-wave plate, Faraday rotator, the second catoptron and the second polarizing beam splitter successively; When common port sends light signal, light signal is through the second polarizing beam splitter, be broken down into mutually perpendicular first polarized component in polarization direction and the second polarized component, first polarized component arrives receiving end through Faraday rotator, half-wave plate, the 3rd catoptron, the first polarizing beam splitter successively, and the second polarized component arrives receiving end through the second polarizing beam splitter, the second catoptron, Faraday rotator, half-wave plate and the first polarizing beam splitter successively.
As the further improvement of the application one embodiment, optical frames group also comprises the first catoptron, the second catoptron and the 3rd catoptron, when transmitting terminal launches parallel direction light beam, parallel direction light beam arrives common port through the first catoptron, the first polarizing beam splitter, the 3rd catoptron, half-wave plate, Faraday rotator second polarizing beam splitter successively; When common port sends light signal, light signal is through the second polarizing beam splitter, be broken down into mutually perpendicular first polarized component in polarization direction and the second polarized component, first polarized component arrives receiving end through the second catoptron, Faraday rotator, half-wave plate, the first polarizing beam splitter successively, and the second polarized component arrives receiving end through the second polarizing beam splitter, Faraday rotator, half-wave plate the 3rd catoptron and the first polarizing beam splitter successively.
As the further improvement of the application one embodiment, the light beam that transmitting terminal is launched and the light beam that receiving end receives are parallel to each other.
As the further improvement of the application one embodiment, the light beam that transmitting terminal is launched and the light beam that common port receives are parallel to each other.
As the further improvement of the application one embodiment, the light beam that transmitting terminal is launched and the light beam that receiving end receives are positioned at the one or both sides of the straight line at the light beam place that common port receives.
As the further improvement of the application one embodiment, the light beam that transmitting terminal sends and the light beam that common port receives are on same straight line.
As the further improvement of the application one embodiment, optical circulator also comprises reflecting prism light being carried out to translation, in the light path of reflecting prism between the first polarizing beam splitter and receiving end, or, in the light path of reflecting prism between the first catoptron and transmitting terminal.
As the further improvement of the application one embodiment, the light that transmitting terminal sends arrives optical frames group after isolator.
The another aspect of the application provides a kind of simplex optical module, comprises transmitter module and receiver module, also comprises the above-mentioned optical circulator of power.
Snigle of the prior art, when transmitting terminal and receiving end are positioned at the side of half-wave plate, needs at least three polarizing beam splitters when common port is positioned at the opposite side of half-wave plate.Compared with prior art, the optical circulator that the application provides and simplex optical module, use less polarizing beam splitter, cost is lower.
Accompanying drawing explanation
Fig. 1 is the first light path schematic diagram of the application's optical circulator one embodiment;
Fig. 2 is the second light path schematic diagram of the application's optical circulator one embodiment;
Fig. 3 is the first light path schematic diagram of the another embodiment of the application's optical circulator;
Fig. 4 is the second light path schematic diagram of the another embodiment of the application's optical circulator;
Fig. 5 is the first light path schematic diagram of another embodiment of the application's optical circulator;
Fig. 6 is the second light path schematic diagram of another embodiment of the application's optical circulator.
Embodiment
Below with reference to embodiment shown in the drawings, the application is described in detail.But these embodiments do not limit the application, the structure that those of ordinary skill in the art makes according to these embodiments, method or conversion functionally are all included in the protection domain of the application.
The application's optical circulator, comprises transmitting terminal 1, common port 2, receiving end 3 and optical frames group.Wherein, common port 2 is connected with optical fiber.Transmitting terminal 1 inputs parallel direction light beam, first through isolator 7, then through optical frames group, by common port 2 outgoing, forms the first light path.Common port 2 inputs random polarization state light beam, by receiving end 3 outgoing after optical frames group, forms the second light path.The light signal of the first light path and the second light path can be Same Wavelength or different wave length.
Fig. 1 and Fig. 2 illustrates the transmission path of the first light path and the second light path in first embodiment respectively.Figure Zhong “ ∣ " represent parallel direction light beam, " " represents vertical direction light beam.It is to be appreciated that in optical circulator duty, the first light path and the second light path can simultaneously and deposit.
With reference to figure 1 and Fig. 2, optical frames group comprises the first polarizing beam splitter 53, second polarizing beam splitter 55, half-wave plate 62 and Faraday rotator 72.First polarizing beam splitter 53 and the second polarizing beam splitter 55 make the light beam of parallel direction through, vertical direction light beam is reflected.
Optical frames group also comprises the first catoptron 41, second catoptron 43, the 3rd catoptron 45.In this embodiment, the first catoptron 41, second catoptron 43, the 3rd catoptron 45 all angles at 45 ° with light path.Each light path is through wherein two catoptrons, that is, the first light path and the second light path are respectively hung oneself twice reflection, beam projecting direction and light direction keeping parallelism.So, achieve transmitting terminal 1 and be positioned at the side of optical circulator with receiving end 3 and be parallel to each other, common port 2 is positioned at the relative opposite side of optical circulator, and common port 2 is parallel with receiving end 3 with transmitting terminal 1.Certainly, also can be uneven in other embodiments.
Should be understood that, catoptron is not limited to the number of the present embodiment.In order to adapt to the status requirement of transmitting terminal 1, receiving end 3 and common port 3, different number of mirrors can be set to change light path exit direction.With reference to figure 1, the first light path arrives the first polarizing beam splitter 53 in optical frames group after the first catoptron 41 reflects.Because the first light path is parallel direction light beam, can pass through the first polarizing beam splitter 53, more successively through half-wave plate 62 and Faraday rotator 72, in this process, polarization direction does not rotate, and is still parallel direction.Light path continues arrival second catoptron 43, through the second polarizing beam splitter 55 after its reflection, arrives common port 2.In this transmitting procedure, the light polarization of the first light path does not change all the time, just carries out reflecting and transmission, is still parallel direction polarized light during arrival common port 2.
In the second light path, the polarized component of parallel direction and vertical direction is separately transmitted, and the polarized component of parallel direction is rotated to be vertical direction, and the polarized component of vertical direction is rotated to be parallel direction, then comes together in receiving end 3.
With reference to figure 2, the second light path, after the second polarizing beam splitter 55, is divided into the two-beam of the separation with mutual perpendicular polarisation state.Wherein, the polarized component of vertical direction is reflected rear arrival Faraday rotator 72, then through half-wave plate 62, polarization state, by half-twist, becomes parallel direction.This polarized component continues, through the first polarizing beam splitter 53 after the 3rd catoptron 45 reflects, to arrive receiving end 3.
On the other hand, the second light path is after the second polarizing beam splitter 55, and the polarized component of parallel direction cuts across, and arrives the second catoptron 43, arrive Faraday rotator 72, then through half-wave plate 62, polarization state, by half-twist, becomes vertical direction after its reflection.This polarized component reflects through the first polarizing beam splitter 53 again, arrives receiving end 3.
In the optical circulator of the Snigle of prior art, when transmitting terminal and receiving end are positioned at the side of half-wave plate, when common port is positioned at the opposite side of half-wave plate, need at least three polarizing beam splitters.Relative to prior art, the optical frames group of the application only arranges two polarizing beam splitters, and cost reduces, and volume is corresponding reduction also.It should be noted that, transmitting terminal and receiving end are positioned at the side of half-wave plate herein, the opposite side that common port is positioned at half-wave plate refers to, the light that transmitting terminal and receiving end transmit and receive and the light that common port transmits and receives is parallel to each other or close to time parallel, half-wave plate between transmitting terminal and common port, also between receiving end and common port.
Reflecting prism 9 to be selectively arranged in the second light path between the first polarizing beam splitter 53 and receiving end 3, in order to move in parallel the outgoing beam of the second light path, transmitting terminal 1 and the distance of receiving end 3 can be regulated easily, make optical circulator range of size adjustable, adapt to disparate modules space requirement.
Fig. 3 and Fig. 4 illustrates the transmission path of the first light path and the second light path in another embodiment respectively, the difference of itself and previous embodiment is, there are 90 ° of rotations in the agent structure of optical frames group relative to the position of transmitting terminal 1, common port 2, receiving end 3, correspondingly, first light path path changing, and the path of the second light path polarized component occurs opposed.
With reference to figure 3, the first light path arrives the first polarizing beam splitter 53 in optical frames group after the first catoptron 41 reflects.Because the first light path is parallel direction light beam, can pass through the first polarizing beam splitter 53, arrive the 3rd catoptron 45, through half-wave plate 62 and Faraday rotator 72 after being reflected, now polarization direction does not rotate, and is still parallel direction.Light path cuts across the second polarizing beam splitter 55, arrives common port 2.Identical with a upper embodiment, in transmitting procedure, the light polarization of the first light path does not change, and only carries out reflecting and transmission, is still parallel direction polarized light during arrival common port 2.
With reference to figure 4, the second light path, after the second polarizing beam splitter 55, is divided into the two-beam of the separation with mutual perpendicular polarisation state.Wherein, after the polarized component transmission of parallel direction, arrive Faraday rotator 72, then through half-wave plate 62, polarization state, by half-twist, becomes vertical direction.This polarized component arrives the first polarizing beam splitter 53 again after the 3rd catoptron 45 reflects, and arrives receiving end 3 through reflection.
On the other hand, the second light path is after the second polarizing beam splitter 55, and the polarized component of vertical direction is reflected to the second catoptron 43, reach Faraday rotator 72, then through half-wave plate 62, polarization state, by half-twist, becomes parallel direction after its reflection.This polarized component through the first polarizing beam splitter 53, is joined with another polarized component again, arrives receiving end 3.
Reflecting prism 9 to be selectively arranged in the second light path between the first polarizing beam splitter 53 and receiving end 3.
Fig. 5 and Fig. 6 illustrates the 3rd embodiment.The key distinction of itself and above-mentioned second embodiment is, reflecting prism 9 to be arranged in the first light path between transmitting terminal 1 and the first catoptron 41.So, compared to second embodiment, transmitting terminal 1 exchanges with the relative position of receiving end 3, and common port 2 and incidence end 1 can be made to be positioned at same level line, or make common port 2 in the horizontal direction between incidence end 1 and receiving end 3, optical circulator structure is compacter.
Similarly, the application's the 4th embodiment (not shown) adopts the light path substantially identical with first embodiment, difference is, reflecting prism 9 to be arranged in the first light path between transmitting terminal 1 and the first catoptron 41, similarly can save or adjust the space of optical circulator, be beneficial to the layout of optical module or other parts.
Similarly, reflecting prism 9 can also arrange between common port 2 and the second polarizing beam splitter 55 by the application's the 5th embodiment (not shown), similarly can play the effect of saving or adjusting optical circulator space, be beneficial to the layout of optical module or other electronic unit.
The application's optical circulator is applied in simplex optical module as light element, is connected with sending module, receiver module, reduces module cost, realizes the high efficiency of transmission of light signal.Further, the existence due to reflecting prism can make deviser better carry out layout to the inner space of simplex optical module, reaches and optimizes space layout, hold the effect of more multi-part or reduced volume.
Be to be understood that, although this instructions is described according to embodiment, but not each embodiment only comprises an independently technical scheme, this narrating mode of instructions is only for clarity sake, those skilled in the art should by instructions integrally, technical scheme in each embodiment also through appropriately combined, can form other embodiments that it will be appreciated by those skilled in the art that.
A series of detailed description listed is above only the illustrating of feasibility embodiment for the application; they are also not used to the protection domain limiting the application, and the equivalent implementations that all the application's of disengaging skill spirit is done or change all should be included within the protection domain of the application.
Claims (11)
1. an optical circulator, comprises transmitting terminal, receiving end, common port and optical frames group, it is characterized in that, described optical frames group comprises the first polarizing beam splitter, the second polarizing beam splitter, half-wave plate and Faraday rotator; When described transmitting terminal launches parallel direction light beam, described parallel direction light beam arrives common port through the first polarizing beam splitter, half-wave plate, Faraday rotator and the second polarizing beam splitter at least successively; When described common port sends light signal, described light signal is through the second polarizing beam splitter, be broken down into mutually perpendicular first polarized component in polarization direction and the second polarized component, described first polarized component is at least successively through Faraday rotator, half-wave plate, the first polarizing beam splitter, arrive receiving end, described second polarized component, at least successively through the second polarizing beam splitter, Faraday rotator, half-wave plate and the first polarizing beam splitter, arrives receiving end.
2. optical circulator according to claim 1, is characterized in that, described transmitting terminal and receiving end are located at the side of described half-wave plate, and the opposite side of described half-wave plate is located at by described common port.
3. optical circulator according to claim 2, it is characterized in that, described optical frames group also comprises the first catoptron, the second catoptron and the 3rd catoptron, when described transmitting terminal launches parallel direction light beam, described parallel direction light beam arrives common port through the first catoptron, the first polarizing beam splitter, half-wave plate, Faraday rotator, the second catoptron and the second polarizing beam splitter successively; When described common port sends light signal, described light signal is through the second polarizing beam splitter, be broken down into mutually perpendicular first polarized component in polarization direction and the second polarized component, described first polarized component arrives receiving end through Faraday rotator, half-wave plate, the 3rd catoptron, the first polarizing beam splitter successively, and described second polarized component arrives receiving end through the second polarizing beam splitter, the second catoptron, Faraday rotator, half-wave plate and the first polarizing beam splitter successively.
4. optical circulator according to claim 2, it is characterized in that, described optical frames group also comprises the first catoptron, the second catoptron and the 3rd catoptron, when described transmitting terminal launches parallel direction light beam, described parallel direction light beam arrives common port through the first catoptron, the first polarizing beam splitter, the 3rd catoptron, half-wave plate, Faraday rotator second polarizing beam splitter successively; When described common port sends light signal, described light signal is through the second polarizing beam splitter, be broken down into mutually perpendicular first polarized component in polarization direction and the second polarized component, described first polarized component arrives receiving end through the second catoptron, Faraday rotator, half-wave plate, the first polarizing beam splitter successively, and described second polarized component arrives receiving end through the second polarizing beam splitter, Faraday rotator, half-wave plate the 3rd catoptron and the first polarizing beam splitter successively.
5. the optical circulator according to claim 3 or 4, is characterized in that, the light beam that described transmitting terminal is launched and the light beam that described receiving end receives are parallel to each other.
6. optical circulator according to claim 5, is characterized in that, the light beam that described transmitting terminal is launched and the light beam that described common port receives are parallel to each other.
7. optical circulator according to claim 6, is characterized in that, the light beam that described transmitting terminal is launched and the light beam that described receiving end receives are positioned at the one or both sides of the straight line at the light beam place that described common port receives.
8. optical circulator according to claim 7, is characterized in that, the light beam that described transmitting terminal sends and the light beam that described common port receives are on same straight line.
9. the optical circulator according to claim 3 or 4, it is characterized in that, described optical circulator also comprises reflecting prism light being carried out to translation, in the light path of described reflecting prism between the first polarizing beam splitter and receiving end, or, in the light path of described reflecting prism between described first catoptron and described transmitting terminal.
10. the optical circulator according to claim arbitrary in Claims 1-4, is characterized in that, the light that described transmitting terminal sends arrives optical frames group after isolator.
11. 1 kinds of simplex optical modules, comprise transmitter module and receiver module, it is characterized in that, also comprise the arbitrary described optical circulator of claim 1-10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510118471.7A CN104730641A (en) | 2015-03-18 | 2015-03-18 | Optical circulator and single-fiber bidirectional optical module using same |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510118471.7A CN104730641A (en) | 2015-03-18 | 2015-03-18 | Optical circulator and single-fiber bidirectional optical module using same |
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| CN104730641A true CN104730641A (en) | 2015-06-24 |
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| CN201510118471.7A Pending CN104730641A (en) | 2015-03-18 | 2015-03-18 | Optical circulator and single-fiber bidirectional optical module using same |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110531469A (en) * | 2018-05-24 | 2019-12-03 | 苏州旭创科技有限公司 | Simplex optical module |
| CN111751929A (en) * | 2019-03-29 | 2020-10-09 | 福州高意通讯有限公司 | Free space circulator |
| CN112799186A (en) * | 2021-04-14 | 2021-05-14 | 武汉恩达通科技有限公司 | Four-port circulator with multiple isolators and coherent BIDI optical module |
| CN115396030A (en) * | 2022-10-31 | 2022-11-25 | 长春理工大学 | Polarization multiplexing space laser communication system and optical transmitter and receiver |
| CN116931199A (en) * | 2023-09-19 | 2023-10-24 | 成都光创联科技有限公司 | Optical device and optical transceiver integrated method |
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| KR100299120B1 (en) * | 1997-12-23 | 2001-09-03 | 윤종용 | Optical circulator |
| US20020171934A1 (en) * | 2001-05-19 | 2002-11-21 | Li Wang | Fiber optical circulator |
| CN101852613A (en) * | 2010-04-20 | 2010-10-06 | 北京航空航天大学 | Light transceiving integrated device applied to fiber sensing |
| CN104133273A (en) * | 2014-06-27 | 2014-11-05 | 厦门市贝莱光电技术有限公司 | Single-fiber bidirectional optical transceiving assembly |
| CN204479795U (en) * | 2015-03-18 | 2015-07-15 | 苏州旭创科技有限公司 | Optical circulator and apply its simplex optical module |
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| KR100299120B1 (en) * | 1997-12-23 | 2001-09-03 | 윤종용 | Optical circulator |
| US20020171934A1 (en) * | 2001-05-19 | 2002-11-21 | Li Wang | Fiber optical circulator |
| CN101852613A (en) * | 2010-04-20 | 2010-10-06 | 北京航空航天大学 | Light transceiving integrated device applied to fiber sensing |
| CN104133273A (en) * | 2014-06-27 | 2014-11-05 | 厦门市贝莱光电技术有限公司 | Single-fiber bidirectional optical transceiving assembly |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110531469A (en) * | 2018-05-24 | 2019-12-03 | 苏州旭创科技有限公司 | Simplex optical module |
| CN110531469B (en) * | 2018-05-24 | 2021-09-07 | 苏州旭创科技有限公司 | Single-fiber bidirectional optical module |
| CN111751929A (en) * | 2019-03-29 | 2020-10-09 | 福州高意通讯有限公司 | Free space circulator |
| CN112799186A (en) * | 2021-04-14 | 2021-05-14 | 武汉恩达通科技有限公司 | Four-port circulator with multiple isolators and coherent BIDI optical module |
| CN115396030A (en) * | 2022-10-31 | 2022-11-25 | 长春理工大学 | Polarization multiplexing space laser communication system and optical transmitter and receiver |
| CN116931199A (en) * | 2023-09-19 | 2023-10-24 | 成都光创联科技有限公司 | Optical device and optical transceiver integrated method |
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