CN108732684A - A kind of single fiber bi-directional multi-wavelength light transmitting-receiving subassembly - Google Patents
A kind of single fiber bi-directional multi-wavelength light transmitting-receiving subassembly Download PDFInfo
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- CN108732684A CN108732684A CN201810848591.6A CN201810848591A CN108732684A CN 108732684 A CN108732684 A CN 108732684A CN 201810848591 A CN201810848591 A CN 201810848591A CN 108732684 A CN108732684 A CN 108732684A
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- 239000000835 fiber Substances 0.000 title claims abstract description 26
- 230000003287 optical effect Effects 0.000 claims abstract description 182
- 230000013011 mating Effects 0.000 claims abstract description 27
- 238000000354 decomposition reaction Methods 0.000 claims abstract description 22
- 239000000758 substrate Substances 0.000 claims abstract description 20
- 230000010287 polarization Effects 0.000 claims description 40
- 230000005540 biological transmission Effects 0.000 description 13
- 239000013307 optical fiber Substances 0.000 description 13
- 238000010586 diagram Methods 0.000 description 7
- 238000004891 communication Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000004020 luminiscence type Methods 0.000 description 4
- 239000000919 ceramic Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000005622 photoelectricity Effects 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
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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
- G02B6/4287—Optical modules with tapping or launching means through the surface of the waveguide
-
- 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
- G02B6/2753—Optical coupling means with polarisation selective and adjusting means characterised by their function or use, i.e. of the complete device
- G02B6/2773—Polarisation splitting or combining
-
- 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
-
- 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
- G02B6/4206—Optical features
-
- 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
-
- 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
- G02B6/4296—Coupling light guides with opto-electronic elements coupling with sources of high radiant energy, e.g. high power lasers, high temperature light sources
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/40—Transceivers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J14/00—Optical multiplex systems
- H04J14/02—Wavelength-division multiplex systems
- H04J14/0201—Add-and-drop multiplexing
- H04J14/0215—Architecture aspects
- H04J14/0216—Bidirectional architectures
Abstract
The present invention discloses a kind of single fiber bi-directional multi-wavelength light transmitting-receiving subassembly, including transmitting terminal, receiving terminal, common end, light transmitting-receiving optical module.Transmitting terminal includes laser group, collimation lens set and WDM optical component；Receiving terminal includes photodiode group, plus lens group and Wave Decomposition multiplex optical component；Common end is the input/output port of optical signal.WDM optical component includes the first reflector plate, the first, second and third wavelength-division multiplex diaphragm；Wave Decomposition multiplex optical component includes optical base-substrate, the first optical filter, the second optical filter, third optical filter, the 4th optical filter；It includes the first polarizing beam splitter, magnetic rotation mating plate, 22.5 degree of 1/2 wave plate, the second polarizing beam splitter, second and third reflector plate, optical path compensation piece that light, which receives and dispatches optical module,.The present invention carries out outputting and inputting for multiple wavelength optical signal over the same fiber, reduces the size and cost of optical transceiving device, there is wavelength multiplexing diaphragm plated film to be easy, performance is more preferable, the advantages such as at low cost.
Description
Technical field
The present invention relates to a kind of single fiber bi-directional in technical field of optical fiber communication more particularly to technical field of optical fiber communication is more
Wavelength optical transceiver module.
Background technology
Since optical-fibre communications is quickly grown, as the promotion of simple optical fiber transmission capacity requirements is (such as transmission video image
Deng), directly require the maximum width for utilizing optical fiber.Wavelength-division multiplex (WDM) technology is the key technology for improving transmission capacity
One of.The wdm system multiple optical signals different from each other to each wavelength multiplex.In recent years, it is desirable that the WDM of optical module
Change, for example, as carrying out wavelength multiplexing with the optical signal in conjunction with the different wave length sent out from multiple light sources
The TOSA of the optical module of light emission component, it is known that have the CAN packaging parts for accommodating LD (laser diode) by four to identical
Direction forms a line and the TOSA that configures.On the other hand, in recent years, it is desirable that the optical modules such as light transmitter receiver it is further
Miniaturization.Such as, it is desirable that the transmitter receiver specification for the optical fiber being connect with corresponding to 40~100GbE i.e. CFP (Compact
Form factor Pluggable) QSFP (QuadSmall Form-factor Pluggable) corresponding small lights transmitting-receiving two
With machine, the small light transmitter receiver of single fiber multi-wavelength is especially required.
Meanwhile the draft of LAN-WDM standards, it is to being respectively provided with transmission speed that each wavelength is 25Gbps and bandwidth
Four optical signals of 800GHz are multiplexed, to realize the transmission capacity of 100Gbps.The wavelength of optical signal is accordingly
1295.56nm,1300.05nm,1304.58nm,1309.14nm.Optical transceiver specified in LAN-WDM drafts, which has, to be followed
The external dimensions of CFP (100G plug types) multi-source agreements (MSA).However, it is also very desirable to further decrease the ruler of optical transceiver
Very little and cost, to install optical transceiver to high-density in a communications device.
Currently, shown in a kind of optical principle of existing multi-wavelength multiplex, by 4 optical signal multiplexers.If will be more
High capacity, it is necessary to which 8 optical signals are multiplexed or are demultiplexed.The multiplexing of obvious 8 wavelength and demultiplexing, except finishing
Structure is complicated outer, it is also necessary to increase by the filter plate of the LD chip and 4 kinds of wavelength of 4 kinds of wavelength.The present invention receives and dispatches optical module using light
Based on, to receiving and dispatching the light of both direction, it is multiplexed and is demultiplexed, equally realize the function of 8 optical signals.For reality
400G application of existing 8 wavelength per wavelength 50G, there is critical effect.
Invention content
Present invention aims at a kind of single fiber bi-directional multi-wavelength light transmitting-receiving subassembly is provided, more waves are carried out over the same fiber
Long optical signal is output and input, and reduces the size and cost of optical transceiving device；Realize the double of optical fiber transmission capacity.
A kind of single fiber bi-directional multi-wavelength light transmitting-receiving subassembly, it is characterised in that：
Optical module 5 is received and dispatched including transmitting terminal 1, common end 2, receiving terminal 3, light；
Transmitting terminal 1 includes the laser group 11 containing multiple lasers being arranged in order, the convergence containing multiple positive lens
Positive lens groups 12, the diverging negative lens group 13 containing multiple negative lenses and the first total reflection mirror 141 and multiple wavelength-divisions containing there are one
It is multiplexed the WDM optical component group 14 of diaphragm, first group of transmitting terminal is combined as laser, positive lens, negative lens, first entirely
Speculum 141, other group of transmitting terminal are combined as laser, positive lens, negative lens, wavelength-division multiplex diaphragm；
Common end 2 is the input/output port of optical signal；
Receiving terminal 3 includes the photodiode group 31 containing several photodiodes being arranged in order, contains several convergences
The plus lens group 32 and Wave Decomposition multiplex optical component 6 of lens, Wave Decomposition multiplex optical component 6 include 61 sum number of optical base-substrate
A optical filter；
Light transmitting-receiving optical module 5 includes being arranged in rectangular diagonal the first polarizing beam splitter 511 and second polarization
Optical splitter 512；Another diagonal second total reflection mirror 551 and third total reflection mirror 552 rectangular positioned at this；Magnet ring 56, magnetic rotation
The combination of 57,22.5 degree of 1/2 wave plate, 58 threes of mating plate is between the second total reflection mirror 551 and the second polarizing beam splitter 512, light
Journey compensating plate 59 is between the first polarizing beam splitter 511 and third total reflection mirror 552；
144 position of wavelength-division multiplex diaphragm of last group of transmitting terminal combination is corresponding with the first polarizing beam splitter 511；
First polarizing beam splitter, 511 position is corresponding with optical base-substrate 61；
2 position of common end is corresponding with the second polarizing beam splitter 512.
Between the wavelength-division multiplex diaphragm 144 and the first polarizing beam splitter 511 of last group of transmitting terminal combination, it is provided with
45 ° of 1/2 wave plate 145.
Another scheme is：
A kind of single fiber bi-directional multi-wavelength light transmitting-receiving subassembly, it is characterised in that：
Optical module 5 is received and dispatched including transmitting terminal 1, common end 2, receiving terminal 3, light；
Transmitting terminal 1 includes the laser group 11 containing multiple lasers being arranged in order, the convergence containing multiple positive lens
Positive lens groups 12, the diverging negative lens group 13 containing multiple negative lenses and the first total reflection mirror 141 and multiple wavelength-divisions containing there are one
It is multiplexed the WDM optical component group 14 of diaphragm, first group of transmitting terminal is combined as laser, positive lens, negative lens, first entirely
Speculum 141, other group of transmitting terminal are combined as laser, positive lens, negative lens, wavelength-division multiplex diaphragm；
Common end 2 is the input/output port of optical signal；
Receiving terminal 3 includes the photodiode group 31 containing several photodiodes being arranged in order, contains several convergences
The plus lens group 32 and Wave Decomposition multiplex optical component 6 of lens, Wave Decomposition multiplex optical component 6 include 61 sum number of optical base-substrate
A optical filter；
Light transmitting-receiving optical module 5 includes being arranged in rectangular diagonal the first polarizing beam splitter 511 and second polarization
Optical splitter 512；Another diagonal second total reflection mirror 551 and third total reflection mirror 552 rectangular positioned at this；Magnet ring 56, magnetic rotation
The combination of 57,22.5 degree of 1/2 wave plate, 58 threes of mating plate between the second total reflection mirror 551 and the second polarizing beam splitter 512, and
And the combination of 57,22.5 degree of magnet ring 56, magnetic rotation mating plate 1/2 wave plate, 58 threes is located at the first polarizing beam splitter 511 and third
Between total reflection mirror 552；
144 position of wavelength-division multiplex diaphragm of last group of transmitting terminal combination is corresponding with the first polarizing beam splitter 511；
First polarizing beam splitter, 511 position is corresponding with optical base-substrate 61；
2 position of common end is corresponding with the second polarizing beam splitter 512.
Another scheme is：
A kind of single fiber bi-directional multi-wavelength light transmitting-receiving subassembly, it is characterised in that：
Optical module 5 is received and dispatched including transmitting terminal 1, common end 2, collimating mirror 4, light；
Transmitting terminal 1 includes the laser group 11 containing multiple lasers being arranged in order, the convergence containing multiple positive lens
Positive lens groups 12, the diverging negative lens group 13 containing multiple negative lenses and the first total reflection mirror 141 and multiple wavelength-divisions containing there are one
It is multiplexed the WDM optical component group 14 of diaphragm, first group of transmitting terminal is combined as laser, positive lens, negative lens, first entirely
Speculum 141, other group of transmitting terminal are combined as laser, positive lens, negative lens, wavelength-division multiplex diaphragm；
Common end 2 is the input/output port of optical signal；
Light transmitting-receiving optical module 5 includes being arranged in rectangular diagonal the first polarizing beam splitter 511 and second polarization
Optical splitter 512；Another diagonal second total reflection mirror 551 and third total reflection mirror 552 rectangular positioned at this；Magnet ring 56, magnetic rotation
The combination of 57,22.5 degree of 1/2 wave plate, 58 threes of mating plate between the second total reflection mirror 551 and the second polarizing beam splitter 512, and
And the combination of 57,22.5 degree of magnet ring 56, magnetic rotation mating plate 1/2 wave plate, 58 threes is located at the first polarizing beam splitter 511 and third
Between total reflection mirror 552；
144 position of wavelength-division multiplex diaphragm of last group of transmitting terminal combination is corresponding with the first polarizing beam splitter 511；
The 4th total reflection mirror 553 is equipped between first polarizing beam splitter, 511 position and collimating mirror 4；
2 position of common end is corresponding with the second polarizing beam splitter 512.
Another scheme is：
A kind of single fiber bi-directional multi-wavelength light transmitting-receiving subassembly, it is characterised in that：
Optical module 5 is received and dispatched including collimating mirror 4, common end 2, receiving terminal 3, light；
Common end 2 is the input/output port of optical signal；
Receiving terminal 3 includes the photodiode group 31 containing several photodiodes being arranged in order, contains several convergences
The plus lens group 32 and Wave Decomposition multiplex optical component 6 of lens, Wave Decomposition multiplex optical component 6 include 61 sum number of optical base-substrate
A optical filter；
Light transmitting-receiving optical module 5 includes being arranged in rectangular diagonal the first polarizing beam splitter 511 and second polarization
Optical splitter 512；Another diagonal second total reflection mirror 551 and third total reflection mirror 552 rectangular positioned at this；Magnet ring 56, magnetic rotation
The combination of 57,22.5 degree of 1/2 wave plate, 58 threes of mating plate between the second total reflection mirror 551 and the second polarizing beam splitter 512, and
And the combination of 57,22.5 degree of magnet ring 56, magnetic rotation mating plate 1/2 wave plate, 58 threes is located at the first polarizing beam splitter 511 and third
Between total reflection mirror 552；
4 position of collimating mirror is corresponding with the first polarizing beam splitter 511；
First polarizing beam splitter, 511 position is corresponding with optical base-substrate 61；First polarizing beam splitter, 511 position and optical base-substrate
The 4th total reflection mirror 553 is equipped between 61；
2 position of common end is corresponding with the second polarizing beam splitter 512.
Laser group sends out the linearly polarized light of several different wave lengths.
What laser group was sent out the collimation lens set that laser group is constituted by convergence positive lens groups and diverging negative lens group
Divergent beams are collimated into collimated light beam.
The collimated light beam of reception is converged to photodiode group by plus lens group.
The light transmitting-receiving kernel of the present invention realizes two sides of light-receiving and transmitting using polarizing beam splitter, wave plate, magnetic rotation mating plate
To multiplexing and demultiplexing.
Collimation directional light, single polarizing beam, 45 ° of four road light of wavelength-division multiplex diaphragm pair are utilized in WDM optical component
It is multiplexed.
As needed, either receiving terminal can export external independent transmitting terminal or receiving terminal to transmitting terminal with optical fiber.
Light transmitting-receiving kernel can turn in solid space.
Transmitting terminal using the positive lens of convergence and the negative lens group of diverging at collimation lens set, correct laser direction and
Position deviation.
Light receive and dispatch optical module, in addition to four wavelength, be equally applicable for six wavelength, eight wavelength, ten wavelength, 12 wavelength and
Other multi-wavelength numbers.
Light receives and dispatches optical module, is indiscriminate to various wavelength in certain wave-length coverage, so originator and receiving end
Wavelength/wavelength group, can be likewise, can also be different.
The advantage of the invention is that：
1, light transmitting-receiving optical module realizes light-receiving and transmitting both direction using polarizing beam splitter, wave plate, magnetic rotation mating plate
Multiplexing and demultiplexing.
2, in WDM optical component using collimation directional light, single polarization state, 45 ° of four road light of wavelength-division multiplex diaphragm pair into
Row multiplexing.
3, as needed, either receiving terminal can export external independent transmitting terminal or receiving terminal to transmitting terminal with optical fiber.
4, transmitting terminal corrects the direction of laser using the positive lens of convergence and the negative lens group of diverging at collimation lens set
And position deviation.
5, light transmitting-receiving optical module can turn in solid space.
6, light receives and dispatches optical module, is indiscriminate to wavelength in a wavelength range, arbitrary interval may be implemented
The multiplexing of odd, even group of wavelength and demultiplexing.
In 5G transceiver module standards, the two groups of wavelength of odd even for using the wavelength intervals 50G/100G are needed, to realize one group
Emit one group of reception.The light of the present invention receives and dispatches optical module, and in a certain range (limited range of magnetic rotation mating plate and wave plate, one
As be 60nm), be indiscriminate to optical wavelength, the multiplexing of two groups of odd even wavelength groups of arbitrary wavelength interval may be implemented and demultiplex
With, it is clear that the present invention can comply fully with the application requirement of 5G.
A kind of single fiber bi-directional multi-wavelength light transmitting-receiving subassembly provided by the invention can carry out multi-wavelength light over the same fiber
Signal is output and input, and reduces the size and cost of optical transceiving device, and performance is more preferable, the advantages such as at low cost, especially in fact
The double of optical fiber transmission capacity is showed.
Description of the drawings
Fig. 1 is one single fiber bi-directional multi-wavelength light transmitting-receiving subassembly optical texture schematic diagram of the embodiment of the present invention；
Fig. 2 is that two transmitting terminal of the embodiment of the present invention adds wave plate rotatory polarization direction schematic diagram；
Fig. 3 is that three light of the embodiment of the present invention receives and dispatches the full polarization state light path schematic diagram of optical module；
Fig. 4 is four single fiber bi-directional multi-wavelength light transmitting-receiving subassembly optical texture schematic diagram of the embodiment of the present invention；
Fig. 5 is five single fiber bi-directional multi-wavelength light transceiver module optical texture schematic diagram of the embodiment of the present invention.
Attached drawing indicates：
1- transmitting terminals；
11- laser groups；111- first laser devices；112- second lasers；113- third lasers；The 4th laser of 114-
Device；
12- converges positive lens groups；The first positive lens of 121-；The second positive lens of 122-；123- third positive lens；124- the 4th
Positive lens；
13- dissipates negative lens group；The first negative lenses of 131-；The second negative lenses of 132-；133- third negative lenses；134 the 4th
Negative lens；
14- WDM optical component groups；The first total reflection mirrors of 141-；142- the first wavelength-division multiplex diaphragms；143- second
Wavelength-division multiplex diaphragm；144- third wavelength-division multiplex diaphragms；145-45 ° of 1/2 wave plate；
The common ends 2-；
3- receiving terminals；
31- photodiode groups；The first photodiodes of 311-；The second photodiodes of 312-；313- thirds photoelectricity two
Pole pipe；The 4th photodiodes of 314-；
32- plus lens groups；The first plus lens of 321-；The second plus lens of 322-；323- third plus lens；324-
4th plus lens；
4- collimators；
5- light receives and dispatches optical module；The first polarizing beam splitters of 511-；The second polarizing beam splitters of 512-；551- second is totally reflected
Mirror；552- third total reflection mirrors；The 4th total reflection mirrors of 553-；56- magnet rings；57- magnetic rotation mating plates；58-22.5 spending 1/2 wave plate；59-
Optical path compensation piece；
6- Wave Decomposition multiplex optical components；61- optical base-substrates；The first optical filters of 621-；The second optical filters of 622-；623-
Three optical filters；The 4th optical filters of 624-.
11'- linearly polarized lights；12'- linearly polarized lights；21'- linearly polarized lights；22'- linearly polarized lights；
Specific implementation mode
To make the foregoing features and advantages of the present invention clearer and more comprehensible, special embodiment below, and coordinate attached drawing, make detailed
Carefully it is described as follows.
For the ease of expression, figure orbicular spot of the present invention is the light of vertical paper, and straight line is the light of parallel paper.
It is one single fiber bi-directional multi-wavelength light transmitting-receiving subassembly of the embodiment of the present invention with reference to figure 1, including including transmitting terminal 1, public
End 2, receiving terminal 3, light receive and dispatch optical module 5.
Transmitting terminal 1 includes laser group 11, convergence positive lens groups 12, diverging negative lens group 13 and WDM optical component
Group 14.
Laser group 11 includes first laser device 111；Second laser 112；Third laser 113；4th laser
114。
It includes the first positive lens 121 to converge positive lens groups 12；Second positive lens 122；Third positive lens 123；4th just thoroughly
Mirror 124.
It includes the first negative lens 131 to dissipate negative lens group 13；Second negative lens 132；Third negative lens 133；4th is negative
Mirror 134.
WDM optical component 14 is multiple including the first total reflection mirror 141, the first wavelength-division multiplex diaphragm 142, the second wavelength-division
With diaphragm 143, third wavelength-division multiplex diaphragm 144.
First laser device 111, the first positive lens 121, the first negative lens 131, the first total reflection mirror 141 are first group of transmitting
End combination, other transmitting terminals are combined as laser, positive lens, negative lens, wavelength-division multiplex diaphragm.
Common end 2 is the input/output port of optical signal, by metalwork, ceramic sleeve, ceramic insertion core and collimation lens
Composition, common end 2 are Wire jumper joint/lock pins external interface connection, are directional lights at 5 end of light transmitting-receiving optical module
Beam.
Receiving terminal 3 includes photodiode group 31, plus lens group 32 and Wave Decomposition multiplex optical component 6.
Photodiode group 31 includes the first photodiode 311；Second photodiode 312；Third photodiode
313；4th photodiode 314.
Plus lens group 32 includes the first plus lens 321；Second plus lens 322；Third plus lens 323；4th
Plus lens 324.
Wave Decomposition multiplex optical component 6 includes optical base-substrate 61, the first optical filter 621, the second optical filter 622, third filter
Mating plate 623, the 4th optical filter 624.
Light transmitting-receiving optical module 5 includes being arranged in rectangular diagonal the first polarizing beam splitter 511 and second polarization
Optical splitter 512；Another diagonal second total reflection mirror 551 and third total reflection mirror 552 rectangular positioned at this；Magnet ring 56, magnetic rotation
The combination of 57,22.5 degree of 1/2 wave plate, 58 threes of mating plate is between the second total reflection mirror and the second polarizing beam splitter, optical path compensation
Piece 59 is between the first polarizing beam splitter and third total reflection mirror.
144 position of wavelength-division multiplex diaphragm of last group of transmitting terminal combination is corresponding with the first polarizing beam splitter 511.
First polarizing beam splitter, 511 position is corresponding with optical base-substrate 61.
Public end position 2 is corresponding with the second polarizing beam splitter 512.
Specific implementation process is as follows：
The optical signal for four different wave lengths that the laser group 11 of transmitting terminal 1 is sent out is converged by convergence positive lens groups 12,
It after being collimated into collimated light beam using diverging negative lens group 13, is multiplexed using WDM optical component 14, passes through light later
It is exported by the reception of common end 2 after receiving and dispatching optical module 5；Passed through by the optical signal including four different wave lengths that common end 2 inputs
Light converges the collimated light beam of reception after Wave Decomposition multiplex optical component 6, then through plus lens group 32 after receiving and dispatching optical module 5
Gather the reception of photodiode group 31.
The laser group 11 of transmitting terminal 1 is swashed by first laser device 111, second laser 112, third laser the 113, the 4th
The sequence of light device 114 is placed side by side；Positive lens groups 12 are converged by the first positive lens 121, the second positive lens 122, third positive lens
123, the sequence of the 4th positive lens 124 is placed side by side；Dissipate negative lens group 13 by the first negative lens 131, the second negative lens 132,
Third negative lens 133, the sequence of the 4th negative lens 134 are placed side by side.
Laser group 11 sends out the linearly polarized light of λ 1, λ 2,4 four λ 3, λ different wave lengths.The λ 1 that first laser device 111 is sent out
Wavelength linearly polarized light reaches the first total reflection mirror after the convergence of the first positive lens 121 after being collimated using the first negative lens 131
141, the first wavelength-division multiplex diaphragm 142 is reached after being reflected by the first total reflection mirror 141, is transmitted by the first wavelength-division multiplex diaphragm 142；
The 2 wavelength linearly polarized lights of λ that second laser 112 is sent out are after the convergence of the second positive lens 122, using the second negative lens 132
The first wavelength-division multiplex diaphragm 142 is reached after collimation, is reflected by the first wavelength-division multiplex diaphragm 142, therefore the first wavelength-division multiplex diaphragm
142 are multiplexed together λ 1 and 2 wavelength light beams of λ as λ 12, are transmitted through the second wavelength-division multiplex diaphragm 143.
The 3 wavelength linearly polarized lights of λ that third laser 113 is sent out are negative using third after the convergence of third positive lens 123
Lens 133 reach the second wavelength-division multiplex diaphragm 143 after collimating, and are reflected by the second wavelength-division multiplex diaphragm 143；It is answered with through the second wavelength-division
The λ 12 transmitted with diaphragm 143 synthesizes λ 123, is reflected through third wavelength-division multiplex diaphragm 144.
The 4 wavelength linearly polarized lights of λ that 4th laser 114 is sent out are negative using the 4th after the convergence of the 4th positive lens 124
Lens 134 reach third wavelength-division multiplex diaphragm 144 after collimating, and are transmitted by third wavelength-division multiplex diaphragm 144；It is answered with through third wavelength-division
The λ 123 reflected with diaphragm 144 synthesizes λ 1234.
λ 1234 is perpendicular linear polarization light 11', reaches the first polarizing beam splitter 511, is S light at this time, through the first polarization spectro
Device 511 reflects, then after the reflection of the second total reflection mirror 551, reaches 22.5 degree of 1/2 wave plate 58, polarization direction rotates 45 degree, then passes through
Magnetic rotation mating plate 57 is crossed, the polarization direction of light beam has rotated clockwise 45 degree again, therefore the polarization direction of linearly polarized light 12 has rotated
90 °, become P light from S light, transmits from the polarization spectro film surface of the second polarizing beam splitter 512, exported by common end 2.
What common end 2 inputted is the random polarization state light beam for including λ 1, λ 2,4 four λ 3, λ different wave lengths, partially by second
It shakes and is divided into the orthogonal two-beam of polarization state, respectively the linearly polarized light 21' and Vertical Square of horizontal direction after optical splitter 512
To linearly polarized light 22'.Wherein horizontal linear polarization light 21' is that P light is directly transmitted by the second polarizing beam splitter 512, by magnetic rotation
After mating plate 57, polarization direction continues to rotate clockwise 45 degree, is rotated counterclockwise using 22.5 degree of 1/2 58 rear polarizer direction of wave plate
45 degree, that is, the polarization direction of linearly polarized light 21' do not change, and after the reflection of second total reflective mirror 551, reaches first
Polarizing beam splitter 511, because being P light, linearly polarized light 21' is transmitted from the first polarizing beam splitter 511.
Perpendicular linear polarization light 22' is S light, is reflected by the second polarizer 512, then by after the reflection of third total reflective mirror 552, is transmitted
By optical path compensation piece 59, the first polarizing beam splitter 511 is reached, because being S light, linearly polarized light 22 is from the first polarization point
Light device 511 reflects.To which linearly polarized light 21' and linearly polarized light 22' is exported after the first polarizing beam splitter 511 reflects and transmits.
Including the light beam of 4 four λ 1, λ 2, λ 3, λ different wave lengths reaches Wave Decomposition multiplex optical component 6, light beam is by optics base
Piece 61 reaches the first optical filter 621 after transmiting, the first optical filter 621 transmits 3 λ of λ 1 wavelength reflection λ, 2 λ, 4 wavelength, 1 wavelength light beams of λ
The first plus lens group 321 is reached, 1 collimated light beams of λ of reception are converged to the first photodiode by the first plus lens group 321
Group 311 receives.2 λ of λ, 3 λ, 4 wavelength light beams reach second after the reflection of optical base-substrate 61 again after the reflection of the first optical filter 621 and filter
Piece 622, the second optical filter 622 transmit 2 wavelength reflection λ of λ, 3 λ, 4 wavelength, and 2 wavelength light beams of λ reach the second plus lens group 322, the
2 collimated light beams of λ of reception are converged to the second photodiode group 312 and received by two plus lens groups 322.3 λ of λ, 4 wavelength light beams pass through
Reach third optical filter 623 after the reflection of second optical filter 622 after the reflection of optical base-substrate 61 again, third optical filter 623 transmits λ 4
4 wavelength of wavelength reflection λ, 3 wavelength light beams of λ reach third plus lens group 323, and third plus lens group 323 is accurate by the λ 3 of reception
Collimated optical beam converges to the reception of third photodiode group 313.4 wavelength light beams of λ are after the reflection of third optical filter 623 again through optics base
Piece 61 reaches the 4th optical filter 624 after reflecting, the 4th optical filter 624 transmits 4 wavelength of λ, and it is saturating that 4 wavelength light beams of λ reach the 4th convergence
4 collimated light beams of λ of reception are converged to the 4th photodiode group 314 and received by microscope group 324, the 4th plus lens group 324.
With reference to figure 2, add wave plate rotatory polarization direction schematic diagram for two transmitting terminal of the embodiment of the present invention.Comparative example one,
Optical principle all, difference lies in：The linearly polarized light of the transmitting terminal of embodiment one is perpendicular to paper, the corresponding hair of the figure
The linearly polarized light for penetrating end is parallel to paper.The λ 1234 of two kinds of linearly polarized lights output, may be used and light is received and dispatched optical module
5 modes being rotated by 90 ° can also make the linear polarization of λ 1234 meet light receipts by the way of increasing by 45 ° of 1/2 wave plate 145
The requirement of luminescence component 5.
With reference to figure 3, the full polarization state light path schematic diagram of optical module is received and dispatched for three light of the embodiment of the present invention.The embodiment of the present invention
Three is the same with one optical principle of embodiment, difference lies in：Magnetic rotation mating plate 57 and 22.5 degree of 1/2 wave plate 58 become larger, and cover up and down
Two light paths.In the kernel, linearly polarized light 22' first passes through magnetic rotation mating plate 57 and rotates clockwise 45 °, using 22.5 degree 1/2
45 ° of the rotation counterclockwise of wave plate 58, polarization direction does not change, with as embodiment one or S light is by the first polarization spectro
Device 511 reflects, and beam is closed with linearly polarized light 21'.
From the full polarization state light of transmitting terminal incidence, after the first polarizing beam splitter 511, the line for being decomposed into the S light of reflection is inclined
Shake light 11 and transmission P light linearly polarized light 12'.Wherein the trend of linearly polarized light 11' is with the just the same of embodiment one, no longer
Repeated explanation.Linearly polarized light 12' reaches 22.5 degree of 1/2 wave plate 58, polarization direction rotation after the transmission of the first polarizing beam splitter 511
Turn 45 degree, using magnetic rotation mating plate 57, the polarization direction of light beam has rotated clockwise 45 degree again, therefore linearly polarized light 12''s is inclined
The direction that shakes has rotated 90 °, becomes S light from P light, after being reflected using third total reflective mirror 552, from the second polarizing beam splitter 512
It is reflected on polarization spectro film surface, closes beam with the linearly polarized light 12' transmitted through the second polarizing beam splitter 512, exported by common end 2.
In above-described embodiment one：Laser group is placed side by side by the sequence of the first, second, third, fourth laser.4
The light that laser is sent out, collimated lens group are collimated into collimated light beam, through 45 ° of wavelength-division multiplex piece multiplex, become a branch of single polarization
The linearly polarized light of state is received by common end and is exported after light receives and dispatches optical module reflection and transmission.
By common end input be random polarization state direction four wavelength channels, it is anti-through light transmitting-receiving optical module transmission
After penetrating, into Wave Decomposition multiplex optical component, by the reflection and transmission of filter set and optical base-substrate by four optical signals one
After one disassembles, receiving terminal photodiode is converged to by plus lens group and is received.
The technical solution of the embodiment of the present invention two, three is essentially the same with one optical principle of embodiment, difference lies in：Transmitting terminal
External with receiving terminal collimator, external optical fiber can be connected to individual reflection end and receiving terminal.
It is four single fiber bi-directional multi-wavelength light transmitting-receiving subassembly of the embodiment of the present invention, the embodiment of the present invention four is the same as implementation with reference to figure 4
One optical principle of example is the same, difference lies in：Receiving terminal 3 is collimated the replacement of device 4, while increasing the 4th total reflection mirror 553, right
Light path is transferred, with compression stroke.Obviously more total reflective mirrors are used, more flexible space structure arrangement may be implemented.It connects
Receiving end 3 is replaced by collimator 4, can be exported with optical fiber, the individual reception component of external waveguide chip type or filter disc type, is reduced whole
Body complexity increases overall flexibility.
It is five single fiber bi-directional multi-wavelength light transmitting-receiving subassembly of the embodiment of the present invention, the embodiment of the present invention five, light receipts with reference to figure 5
5 part of luminescence component is the same with three optical principle of embodiment, and receiving terminal 3 embodiment, one optical principle is the same, difference lies in：Hair
It penetrates 1 collimated device 4 of end to replace, while increasing the 4th total reflection mirror 553, transfer to light path, with compression stroke.Obviously
Using more total reflective mirrors, more flexible space structure arrangement may be implemented.Transmitting terminal 1 is replaced by collimator 4, can be led with optical fiber
Go out, the independent transmission component of external waveguide chip type or filter disc type, reduce overall complexity, increases overall flexibility.In reality
It applies in example five, if collimator 4 is collimator of PMF, light receives and dispatches optical module 5, so that it may to be that the light in embodiment one is received
Luminescence component 5.
With reference to figure 4 and Fig. 5, it is clear that transmitting terminal 1 and receiving terminal 3 are all substituted with collimator 4, also possible.This feelings
Under condition, whole complexity can be further decreased, certain cost is that spatial volume becomes larger.
In the embodiment above, transmitting terminal 1 and receiving terminal 3 are all relatively independent, can from general optical principle
To reason out, the decomposition and synthesis of 4 wavelength can be realized, the decomposition and conjunction for realizing more multi-wavelength can be also improved by technology
At.Obvious transmitting terminal 1 and receiving terminal 3 similarly can be applied to 6,8,10,12,16,32 etc. multi-wavelength situations.Light is received
Luminescence component 5, normal operating wavelength range are limited by the wave-length coverage of 22.5 ° of 1/2 wave plate 58 and magnetic rotation mating plate 57,
It can be obtained by certain theoretical calculation, the range of 80nm wide as the O wave bands of 1260nm~1340nm can meet
The requirement of loss and isolation.The equally range of the 80nm wide as the C+L wave bands of 1515~1595nm, can also meet and want
It asks.There is so wide working range, and multiplexing and the demultiplexing of multi-wavelength can be met, for the single fiber bi-directional multi-wavelength of 5G applications
Transmitting-receiving application, so that it may be met with perfection.
The foregoing is merely presently preferred embodiments of the present invention, all equivalent changes done according to scope of the present invention patent with
Modification should all belong to the covering scope of the present invention.
Claims (5)
1. a kind of single fiber bi-directional multi-wavelength light transmitting-receiving subassembly, it is characterised in that：
Including transmitting terminal (1), common end (2), receiving terminal (3), light transmitting-receiving optical module (5)；
Transmitting terminal (1) includes the laser group (11) containing multiple lasers being arranged in order, the convergence containing multiple positive lens
Positive lens groups (12), the diverging negative lens group (13) containing multiple negative lenses and containing there are one the first total reflection mirrors (141) and more
The WDM optical component group (14) of a wavelength-division multiplex diaphragm, first group of transmitting terminal are combined as laser, positive lens, bear thoroughly
Mirror, the first total reflection mirror (141), other group of transmitting terminal are combined as laser, positive lens, negative lens, wavelength-division multiplex diaphragm；
Common end (2) is the input/output port of optical signal；
Receiving terminal (3) includes the photodiode group (31) containing several photodiodes being arranged in order, contains several convergences
The plus lens group (32) and Wave Decomposition multiplex optical component (6) of lens, Wave Decomposition multiplex optical component (6) includes optical base-substrate
(61) and several optical filters；
Light transmitting-receiving optical module (5) includes being arranged in rectangular diagonal first polarizing beam splitter (511) and the second polarization
Optical splitter (512)；Another diagonal second total reflection mirror (551) and third total reflection mirror (552) rectangular positioned at this；Magnet ring
(56), the combination of magnetic rotation mating plate (57), 22.5 degree of 1/2 wave plate (58) three is located at the second total reflection mirror (551) and the second polarization
Between optical splitter (512), optical path compensation piece (59) is between the first polarizing beam splitter (511) and third total reflection mirror (552)；
Wavelength-division multiplex diaphragm (144) position of last group of transmitting terminal combination is corresponding with the first polarizing beam splitter (511)；
First polarizing beam splitter (511) position is corresponding with optical base-substrate (61)；
Common end (2) position is corresponding with the second polarizing beam splitter (512).
2. a kind of single fiber bi-directional multi-wavelength light transmitting-receiving subassembly as described in claim 1, it is characterised in that：In last group transmitting
It holds between the wavelength-division multiplex diaphragm (144) and the first polarizing beam splitter (511) of combination, is provided with 45 ° of 1/2 wave plate (145).
3. a kind of single fiber bi-directional multi-wavelength light transmitting-receiving subassembly, it is characterised in that：
Including transmitting terminal (1), common end (2), receiving terminal (3), light transmitting-receiving optical module (5)；
Transmitting terminal (1) includes the laser group (11) containing multiple lasers being arranged in order, the convergence containing multiple positive lens
Positive lens groups (12), the diverging negative lens group (13) containing multiple negative lenses and containing there are one the first total reflection mirrors (141) and more
The WDM optical component group (14) of a wavelength-division multiplex diaphragm, first group of transmitting terminal are combined as laser, positive lens, bear thoroughly
Mirror, the first total reflection mirror (141), other group of transmitting terminal are combined as laser, positive lens, negative lens, wavelength-division multiplex diaphragm；
Common end (2) is the input/output port of optical signal；
Receiving terminal (3) includes the photodiode group (31) containing several photodiodes being arranged in order, contains several convergences
The plus lens group (32) and Wave Decomposition multiplex optical component (6) of lens, Wave Decomposition multiplex optical component (6) includes optical base-substrate
(61) and several optical filters；
Light transmitting-receiving optical module (5) includes being arranged in rectangular diagonal first polarizing beam splitter (511) and the second polarization
Optical splitter (512)；Another diagonal second total reflection mirror (551) and third total reflection mirror (552) rectangular positioned at this；Magnet ring
(56), the combination of magnetic rotation mating plate (57), 22.5 degree of 1/2 wave plate (58) three is located at the second total reflection mirror (551) and the second polarization
Between optical splitter (512), and the combination of magnet ring (56), magnetic rotation mating plate (57), 22.5 degree of 1/2 wave plate (58) three is located at first
Between polarizing beam splitter (511) and third total reflection mirror (552)；
Wavelength-division multiplex diaphragm (144) position of last group of transmitting terminal combination is corresponding with the first polarizing beam splitter (511)；
First polarizing beam splitter (511) position is corresponding with optical base-substrate (61)；
Common end (2) position is corresponding with the second polarizing beam splitter (512).
4. a kind of single fiber bi-directional multi-wavelength light transmitting-receiving subassembly, it is characterised in that：
Including transmitting terminal (1), common end (2), collimating mirror (4), light transmitting-receiving optical module (5)；
Transmitting terminal (1) includes the laser group (11) containing multiple lasers being arranged in order, the convergence containing multiple positive lens
Positive lens groups (12), the diverging negative lens group (13) containing multiple negative lenses and containing there are one the first total reflection mirrors (141) and more
The WDM optical component group (14) of a wavelength-division multiplex diaphragm, first group of transmitting terminal are combined as laser, positive lens, bear thoroughly
Mirror, the first total reflection mirror (141), other group of transmitting terminal are combined as laser, positive lens, negative lens, wavelength-division multiplex diaphragm；
Common end (2) is the input/output port of optical signal；
Light transmitting-receiving optical module (5) includes being arranged in rectangular diagonal first polarizing beam splitter (511) and the second polarization
Optical splitter (512)；Another diagonal second total reflection mirror (551) and third total reflection mirror (552) rectangular positioned at this；Magnet ring
(56), the combination of magnetic rotation mating plate (57), 22.5 degree of 1/2 wave plate (58) three is located at the second total reflection mirror (551) and the second polarization
Between optical splitter (512), and the combination of magnet ring (56), magnetic rotation mating plate (57), 22.5 degree of 1/2 wave plate (58) three is located at first
Between polarizing beam splitter (511) and third total reflection mirror (552)；
Wavelength-division multiplex diaphragm (144) position of last group of transmitting terminal combination is corresponding with the first polarizing beam splitter (511)；
The 4th total reflection mirror (553) is equipped between first polarizing beam splitter (511) position and collimating mirror (4)；
Common end (2) position is corresponding with the second polarizing beam splitter (512).
5. a kind of single fiber bi-directional multi-wavelength light transmitting-receiving subassembly, it is characterised in that：
Including collimating mirror (4), common end (2), receiving terminal (3), light transmitting-receiving optical module (5)；
Common end (2) is the input/output port of optical signal；
Receiving terminal (3) includes the photodiode group (31) containing several photodiodes being arranged in order, contains several convergences
The plus lens group (32) and Wave Decomposition multiplex optical component (6) of lens, Wave Decomposition multiplex optical component (6) includes optical base-substrate
(61) and several optical filters；
Light transmitting-receiving optical module (5) includes being arranged in rectangular diagonal first polarizing beam splitter (511) and the second polarization
Optical splitter (512)；Another diagonal second total reflection mirror (551) and third total reflection mirror (552) rectangular positioned at this；Magnet ring
(56), the combination of magnetic rotation mating plate (57), 22.5 degree of 1/2 wave plate (58) three is located at the second total reflection mirror (551) and the second polarization
Between optical splitter (512), and the combination of magnet ring (56), magnetic rotation mating plate (57), 22.5 degree of 1/2 wave plate (58) three is located at first
Between polarizing beam splitter (511) and third total reflection mirror (552)；
Collimating mirror (4) position is corresponding with the first polarizing beam splitter (511)；
First polarizing beam splitter (511) position is corresponding with optical base-substrate (61)；First polarizing beam splitter (511) position and optics base
The 4th total reflection mirror (553) is equipped between piece (61)；
Common end (2) position is corresponding with the second polarizing beam splitter (512).
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| CN115343811A (en) * | 2022-04-21 | 2022-11-15 | 讯芸电子科技(中山)有限公司 | Butterfly type packaged optical transceiver |
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