CN109143494A - A kind of optical module device and implementation method for multi-wavelength transmission - Google Patents
A kind of optical module device and implementation method for multi-wavelength transmission Download PDFInfo
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- CN109143494A CN109143494A CN201811013297.XA CN201811013297A CN109143494A CN 109143494 A CN109143494 A CN 109143494A CN 201811013297 A CN201811013297 A CN 201811013297A CN 109143494 A CN109143494 A CN 109143494A
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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
-
- 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
- G02B6/4296—Coupling light guides with opto-electronic elements coupling with sources of high radiant energy, e.g. high power lasers, high temperature light sources
-
- 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
- G02B6/43—Arrangements comprising a plurality of opto-electronic elements and associated optical interconnections
Abstract
The present invention relates to technical field of photo communication, provide a kind of optical module device and implementation method for multi-wavelength transmission.Device includes one or more light emitting unit, and there is the laser of corresponding at least two output wavelength quantity, and the first wavelength division multiplexer for being coupled to the output port of the light emitting unit for completing at least two output wavelength in each light emitting unit；Corresponding to the output optical port of each light emitting unit, coupled respectively with the second wavelength division multiplexer；Wavelength of the laser for transmitting in each light emitting unit is selected from the optical signal, and differs pre-determined distance between each laser wavelength of optical signal to be emitted in a corresponding light emitting unit.Present invention reduces the cost of entire solution, also improve in the prior art for adjacent high density optical signal in optical transmitting set internal crosstalk problem.
Description
[technical field]
The present invention relates to technical field of photo communication, more particularly to a kind of optical module device and reality for multi-wavelength transmission
Existing method.
[background technique]
With being constantly progressive for Intemet data traffic etc., the demand to bandwidth is constantly promoted, ever-increasing data flow
Amount demand also proposes new challenge to Metropolitan Area Network construction, and the update of light delivery module inevitable will also carry out steadily.Than
Such as, the trill in popular Internet application, average daily data traffic reach 100TB or more.Under the premise of keeping lower cost, mention
The data transmission capacity of high simple optical fiber is to solve instantly and the trusted path of the following increasingly huger data traffic demand.
Using DWDM as the preferred option of optimization network transmission, the optical channel interval of system also has for major systems provider and operation commercial city
200GHz is strided forward to 100GHz and 50GHz.However, as channel spacing is more and more closer, the multiplex of the close light wave of wavelength,
Partial wave problem becomes more to be difficult to solve.If according to traditional dual carrier module, a length of adjacent two wavelength channel of the light wave of output,
So the confined space in module is just needed to be designed to avoid its crosstalk in multiplex；Be also required to when partial wave using height at
This coherent reception is spaced two minimum wavelength channels to distinguish.
Divide wave stability to improve multiplex, while reducing cost, needs to consider that a kind of new method completes dual carrier
The design of module.
[summary of the invention]
Technical problems to be solved of the embodiment of the present invention are a length of adjacent two wavelength channels of light wave exported in the prior art,
So the confined space in module is just needed to be designed to avoid its crosstalk in multiplex；Be also required to when partial wave using height at
This coherent reception is spaced two minimum wavelength channels to distinguish.And actual conditions are, in the prior art for single optical mode
Wavelength-division multiplex unit inside block, the considerations of being typically based on cost, do not use solution high-precision enough therefore to bring
When if desired carrying out multi-wavelength transmission in optical module, more or less exist between the adjacent wavelength channels inside optical module
Cross-interference issue.
The embodiment of the present invention adopts the following technical scheme that
In a first aspect, the present invention provides a kind of optical module device for multi-wavelength transmission, the optical module device is used
It is λ in emitting one group of wavelength1, λ2... ..., λkOptical signal, optical module device includes:
One or more light emitting unit, and there are corresponding at least two output wavelength quantity in each light emitting unit
Laser, and the first wave for being coupled to the output port of the light emitting unit for completing at least two output wavelength
Division multiplexer；
Corresponding to the output optical port of each light emitting unit, coupled respectively with the second wavelength division multiplexer；
Wherein, the laser in each light emitting unit is selected from the optical signal for the wavelength of transmitting, and corresponding
Pre-determined distance is differed between each laser wavelength of optical signal to be emitted in one light emitting unit.
It preferably, is λ in the quantity of the optical signal1, λ2... ..., λ2NIt is a, the quantity of the light emitting unit be it is N number of,
And number of lasers included in each light emitting unit is when being 2, each laser in one light emitting unit of correspondence
Pre-determined distance is differed between the device wavelength of optical signal to be emitted, is specifically included:
According to pre-determined distance N by the λ1, λ2... ..., λ2NA wavelength is divided into N group, comprising: (λ1, λN+1), (λ2,
λN+2) ..., (λN, λ2N)；
Wherein, each light emitting unit obtains the demand setting of one group of wavelength transmitting.
Preferably, optical module device further includes light receiving unit, first wave decomposition multiplex unit and the second wavelength-division demultiplexing
Unit；
The first wave decomposition multiplex unit is used for the optical signal λ that will be received in optical-fiber network1, λ2... ..., λ2N, split
At N group wavelength signals, including (λ1, λN+1), (λ2, λN+2) ..., (λN, λ2N)；
The N group wavelength signals are passed to N number of light receiving unit by the second wavelength-division demultiplexing unit respectively, by each light-receiving list
First wave decomposition multiplex unit in member by the wavelength (de) multiplexing of respective sets at independent two wavelength signals, and by setting
Detector completes the reception processing of optical signal.
Preferably, when the optical module device is specifically used for realizing 100G PAM4 optical module, in the first light emitting unit
Laser implement body realized by packaged 25G TOSA1 and 25G TOSA2, the optical module device further include:
Each corresponding light emitting unit be provided with a set of PAM4 processing unit, driving unit, the first light receiving unit and
First wave decomposition multiplex unit；Wherein, corresponding first light emitting unit is additionally provided with the first light receiving unit, and described first
Light receiving unit includes 25G ROSA1 and 25G ROSA2；
The PAM4 processing unit, driving unit, the first light emitting unit and the first wavelength division multiplexer successively cascade；It is described
PAM4 processing unit is also connected with the 25G ROSA1 and 25G ROSA2；
Wherein, it is λ that 25G TOSA1 and 25G TOSA2, which is respectively used to launch wavelength,1And λN+1Optical signal；
The second wavelength-division demultiplexing unit is used to the optical signal received being divided into (λ1, λN+1), (λ2, λN+2) ...,
(λN, λ2N) group, and by (λ1, λN+1) it is transferred to first light receiving unit, so as to the 25G in first receiving unit
ROSA1 and 25G ROSA2 completes the λ1And λN+1Optical signal reception processing；Wherein, the second wavelength-division demultiplexing unit is also used
In by other (λ2, λN+2) ..., (λN, λ2N) group, it is respectively transmitted to corresponding second light receiving unit ... N/2 light receiving unit,
So that the 25G ROSA in each receiving unit completes the reception processing of respective sets optical signal.
It preferably, is λ in the quantity of the optical signal1, λ2... ..., λ2NA, the optical module device is specifically used for realizing
When 200G PAM4 optical module, laser implement body in the first light emitting unit by packaged 25G TOSA1,25G TOSA2,
25G TOSA3 and 25G TOSA4 are realized, with the optical module device further include:
Each corresponding light emitting unit is provided with a set of PAM4 processing unit, driving unit, the first light receiving unit, the
One wavelength-division demultiplexing unit and the second wavelength-division demultiplexing unit；Wherein, the first light receiving unit includes 25G ROSA1,25G
ROSA2,25G ROSA3 and 25G ROSA4；
The PAM4 processing unit, driving unit, the first light emitting unit and the first wavelength division multiplexer successively cascade；It is described
The optical signal that 25G TOSA1,25G TOSA2,25G TOSA3 and 25G TOSA4 are exported is coupled into first wavelength-division multiplex
Device；The PAM4 processing unit is also connected with the 25G ROSA1,25G ROSA2,25G ROSA3 and 25G ROSA4；
Wherein, it is (λ that 25G TOSA1,25G TOSA2,25G TOSA3 and 25G TOSA4, which are respectively used to launch wavelength,1,
λN/2+1, λ3N/2+1, λN+1) optical signal；
The second wavelength-division demultiplexing unit is used to the optical signal received being divided into (λ1, λN/2+1, λ3N/2+1, λN+1),
(λ2, λN/2+2, λ3N/2+2, λN+2) ..., (λN, λN/2+N, λ3N/2+N, λ2N) group, and by (λ1, λN/2+1, λ3N/2+1, λN+1) be transferred to it is described
First light receiving unit, so as to 25G ROSA1,25G ROSA2, the 25G ROSA3 and 25G in first receiving unit
(λ described in ROSA4 completion1, λN/2+1, λ3N/2+1, λN+1) optical signal reception processing；
Wherein, the second wavelength-division demultiplexing unit is also used to other (λ2, λN/2+2, λ3N/2+2, λN+2) ..., (λN, λN/2+N,
λ3N/2+N, λ2N) group, it is respectively transmitted to corresponding second light receiving unit ... N/2 light receiving unit, so as in each receiving unit
25G ROSA completes the reception processing of respective sets optical signal.
Preferably, when the optical signal is in C-band, the spacing range of each wavelength is 1529.16nm between signal light
To between 1567.01nm.
Second aspect, the present invention also provides a kind of optical module implementation method for multi-wavelength transmission, method includes
Obtain optical module device in light emitting unit quantity and single light emitting unit in possess for transmitting refer to
Determine the quantity of the laser of wavelength signals；
Determine the signal wavelength quantity of optical signal to be launched, and according to possessing in single light emitting unit for transmitting
The optical signal is split into one group or multiple groups optical signal by the quantity of the laser of specified wavelength signal；Wherein, each group of light
Signal includes to match with number of lasers in the corresponding specified single light emitting unit for completing transmitting；
Wherein, optical signal is from the optical module emission process, first complete grouping optical signal inside light emitting unit it
Between light multiplexing, then complete light emitting unit between each group optical signal between light multiplexing.
Preferably, it is provided with the light receiving unit to match with the light emitting unit in the optical module, specific:
Optical signal first completes the demultiplexing between the grouping optical signal after being obtained by optical module, and will demultiplex it
Each grouping optical signal afterwards sends corresponding light receiving unit to；
Each light receiving unit again demultiplexes the one group of optical signal respectively got, and by its internal optical detector
Complete the reception processing of optical signal.
It preferably, is λ in the quantity of the optical signal1, λ2... ..., λ2NIt is a, the quantity of the light emitting unit be it is N number of,
And number of lasers included in each light emitting unit is when being 2, each laser in one light emitting unit of correspondence
Pre-determined distance is differed between the device wavelength of optical signal to be emitted, is specifically included:
According to pre-determined distance N by the λ1, λ2... ..., λ2NA wavelength is divided into N group, comprising: (λ1, λN+1), (λ2,
λN+2) ..., (λN, λ2N)；
Wherein, each light emitting unit obtains the demand setting of one group of wavelength transmitting.
Preferably, the quantity of the optical signal is λ1, λ2... ..., λ2NA, the quantity of the light emitting unit is N/2,
And number of lasers included in each light emitting unit is when being 4, each laser in one light emitting unit of correspondence
Pre-determined distance is differed between the device wavelength of optical signal to be emitted, is specifically included:
According to pre-determined distance N by the λ1, λ2... ..., λ2NA wavelength is divided into N/2 group, comprising: (λ1, λN/2+1, λ3N/2+1,
λN+1), (λ2, λN/2+2, λ3N/2+2, λN+2) ..., (λN, λN/2+N, λ3N/2+N, λ2N)；
Wherein, each light emitting unit obtains the demand setting of one group of wavelength transmitting；Wherein, N/2,3N/2 take its operation
Integer part.
Preferably, when the optical signal is in C-band, the spacing range of each wavelength is 1529.16nm between signal light
To between 1567.01nm.
Compared with prior art, the beneficial effect of the embodiment of the present invention is:
The present invention carries out preparatory grouping to wavelength to be launched, and has fully considered light multiplexing inside light emitting unit
The property difference of light multiplexing between light emitting unit reduces in such a way that optical signal is grouped to inside light emitting unit
The required precision of first wavelength division multiplexer, and by improve light emitting unit between the second wavelength-division multiplex unit precision (relative to
For the quantity of light emitting unit, the ratio with the second wavelength-division multiplex element number is mostly than one), believing to meet highdensity light
Number multiplexing therefore reduce the cost of entire solution, also improve in the prior art for adjacent high density optical signal
In optical transmitting set internal crosstalk problem.
A kind of miniaturization dual carrier 200G PAM4 optical module has also been devised in a preferred embodiment of the invention, provides one
Kind low crosstalk, low cost, high density DWDM optical module solution.
[Detailed description of the invention]
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the centre frequency and wavelength corresponding relationship in 96 channel of C-band provided in an embodiment of the present invention；
Fig. 2 is a kind of structural schematic diagram of optical module device for multi-wavelength transmission provided in an embodiment of the present invention；
Fig. 3 is the structural schematic diagram of another optical module device for multi-wavelength transmission provided in an embodiment of the present invention；
Fig. 4 is the structural schematic diagram of also a kind of optical module device for multi-wavelength transmission provided in an embodiment of the present invention；
Fig. 5 is a kind of structural schematic diagram of optical mode block system for multi-wavelength transmission provided in an embodiment of the present invention；
Fig. 6 is a kind of optical module method flow schematic diagram for multi-wavelength transmission provided in an embodiment of the present invention.
[specific embodiment]
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
In the description of the present invention, term "inner", "outside", " longitudinal direction ", " transverse direction ", "upper", "lower", "top", "bottom" etc. refer to
The orientation or positional relationship shown be based on the orientation or positional relationship shown in the drawings, be merely for convenience of description the present invention rather than
It is required that the present invention must be constructed and operated in a specific orientation, therefore it is not construed as limitation of the present invention.
In addition, as long as technical characteristic involved in the various embodiments of the present invention described below is each other not
Constituting conflict can be combined with each other.
Conventionally, as the rapid development for the data volume for needing to transmit, more and more light emitting units are made
It is made comprising multi-laser, and supports the integration module of multi-wavelength output.However, due to cost considerations, in the prior art greatly
The precision for the first wavelength division multiplexer that most light emitting units are internally integrated usually shows generally, because, for general use
For, which is also sufficient for demand.But inventor has found to work as and existing light emitting unit is used for high density optical signal
When transmission, crosstalk inside optical module that conventional implementation will produce bigger effect between optical signal, and conventional improvement
Means to manufacturing process complexity and can match for the precision of the first wavelength division multiplexer simultaneously inside raising light emitting unit
Part at itself bringing biggish burden, and what the present invention then exactly proposed under such overall situation.
For example, being as shown in Figure 1 C-band wavelength, minimum wavelength spacing is that (wave-length coverage arrives 50GHz for 1529.16nm
1567.01nm is shown in the table in Fig. 1 in detail), contain up to 96 different wave length signal wavelength-divisions be multiplexed into a single mode optical fiber into
The transmission of row signal is, it can be achieved that maximum 50Gbps × 96, the i.e. data throughout of maximum 4.8Tbps.It is in light emitting unit
Higher requirements are also raised for the optical signal crosstalk in portion.
Embodiment 1:
The embodiment of the present invention 1 provides a kind of optical module device for multi-wavelength transmission, as shown in Fig. 2, the optical mode
Block assembly is λ for emitting one group of wavelength1, λ2... ..., λkOptical signal, wherein k is natural number, and optical module device includes:
One or more light emitting unit (for example, light emitting unit 10 as shown in Figure 2 and light emitting unit 20), and
Have the laser of corresponding at least two output wavelength quantity (for example, the light that corresponds to as shown in Figure 2 is sent out in each light emitting unit
Penetrate the laser 101 and laser 102 of unit 10, and laser 201 and laser 202 corresponding to transmitting unit 20), with
And the first wavelength division multiplexer for for completing at least two output wavelength being coupled to the output port of the light emitting unit
(for example, first wavelength division multiplexer 103 and the second wavelength division multiplexer 203 as shown in Figure 2)；In embodiments of the present invention, described
The form of expression of laser 201 can be isolated chip of laser, be also possible to laser array, can also be packaged
Optical module (such as TOSA).
Corresponding to the output optical port of each light emitting unit, respectively with the second wavelength division multiplexer (for example, as shown in Figure 2 the
Two wavelength division multiplexers 30) coupling；
Wherein, the laser in each light emitting unit is selected from the optical signal for the wavelength of transmitting, and corresponding
Pre-determined distance is differed between each laser wavelength of optical signal to be emitted in one light emitting unit.
In embodiments of the present invention, the pre-determined distance can be arranged using equidistant mode, and it is suitable for entire light
The more consistent situation of each light emitting unit performance in modular device, at this point, receiving end can also pass through the week of Cyclic AWG
Phase characteristic sends each group optical signal of demultiplexing to optical receiver in a manner of the wavelength combination of corresponding grouping；However, specifically answering
Often more complicated than what is theoretically considered with situation, therefore, the embodiment of the present invention also proposed a kind of packet mode of unequal spacing,
I.e. according to the performance difference of light emitting unit in optical module device, wavelength to be launched is divided into the multiple groups of not equal part, at this point, receiving
End then can use common AWG and demultiplex to signal light, also, by pressing to different light receiving unit output signals
According to the packet sequencing mode of transmitting terminal, the signals revivification purpose of receiving end and transmitting terminal is completed.
In embodiments of the present invention, two kinds of optional modes are also provided for the mode of grouping:
Mode one:
Directly since first wavelength, next wavelength is obtained according to preset distance；And promote backward one by one, and
When encountering the wavelength for being divided group, jumps to next wavelength and carry out described obtaining next wavelength according to preset distance again
Establish combined process.Such as: it can establish (λ1, λ4), (λ2, λ5), (λ3, λ6), (λ7, λ10) ... grouping, wherein the 4th group
In because of first data λ4First group has been assigned to go, after prolong one λ5Also it is assigned to second group, λ3It is assigned to third
Group, therefore be directly extended to from λ7Start；(λ can also be established1, λ6), (λ2, λ7), (λ3, λ8), (λ4, λ9) ... grouping etc.
It is a, then this repeats no more.
Mode two:
Entire wavelength sequence is directly divided into multiple subsequences, and according to the quantity of the laser in light emitting unit from
In the subsequence of corresponding number, the wavelength for successively obtaining corresponding serial number constitutes combination described in the embodiment of the present invention.Next with
For wavelength sequence is including 16 wavelength objects, the form for being divided into two subsequences is as follows: (λ1, λ2, λ3, λ4, λ5, λ6, λ7, λ8),
(λ9, λ10, λ11, λ12, λ13, λ14, λ15, λ16), then (pre-determined distance in mode one is equivalent to for 2 one group of wavelength division
Result is grouped for 8), it successively extracts and constructs according to sequence where two subsequence medium wavelengths are as follows: (λ1, λ9), (λ2, λ10),
(λ3, λ11), (λ4, λ12), (λ5, λ13), (λ6, λ14), (λ7, λ15), (λ8, λ16)。
By taking wavelength sequence includes 16 wavelength objects as an example, the form for being divided into two subsequences is as follows: (λ1, λ2, λ3, λ4),
(λ5, λ6, λ7, λ8), (λ9, λ10, λ11, λ12)(λ13, λ14, λ15, λ16), then (mode is equivalent to for 2 one group of wavelength division
Pre-determined distance in one is grouped result for 4), building is successively extracted equidistantly according to sequence where two subsequence medium wavelengths
Combination are as follows: (λ1, λ5), (λ2, λ6), (λ3, λ7), (λ4, λ8), (λ9, λ13), (λ10, λ14), (λ11, λ15), (λ12, λ16)。
By taking wavelength sequence includes 16 wavelength objects as an example, the form for being divided into two subsequences is as follows: (λ1, λ2, λ3, λ4),
(λ5, λ6, λ7, λ8), (λ9, λ10, λ11, λ12)(λ13, λ14, λ15, λ16), then (mode is equivalent to for 2 one group of wavelength division
Pre-determined distance in one is grouped result for 8), building is successively extracted equidistantly according to sequence where two subsequence medium wavelengths
Combination can be with are as follows: (λ1, λ9), (λ2, λ10), (λ3, λ11), (λ4, λ12), (λ5, λ13), (λ6, λ14), (λ7, λ15), (λ8,
λ16)。
By taking wavelength sequence includes 16 wavelength objects as an example, the form for being divided into two subsequences is as follows: (λ1, λ2, λ3, λ4),
(λ5, λ6, λ7, λ8), (λ9, λ10, λ11, λ12)(λ13, λ14, λ15, λ16), then for 2 one group of wavelength division, according to two sons
Sequence where sequence medium wavelength successively extract construct non-equidistant combination can be with are as follows: (λ1, λ13), (λ2, λ14), (λ3, λ15),
(λ4, λ16), (λ5, λ9), (λ6, λ10), (λ7, λ11), (λ8, λ12).Due to, it is non-at equal intervals compared to relatively at equal intervals for, rule
Characteristic is increasingly complex, when realization need receiving end be known in advance its layout rule (such as: λ will be known in advance in receiving end1, λ13It is
Transmitted as one group of optical signal), so as to reconfigure for the different wave length signal received, complete light letter
Number parsing.For mode compared to more above-mentioned equidistant rule, processing unit/server calculation amount will increase, still, but
Also improve the ability that proposed method of the embodiment of the present invention is applicable in complex environment.
The embodiment of the present invention carries out preparatory grouping to wavelength to be launched, and has fully considered inside light emitting unit
The property difference of light multiplexing between light multiplexing and light emitting unit reduces in such a way that optical signal is grouped to light emitting unit
The required precision of the first internal wavelength division multiplexer, and by improving the second wavelength-division multiplex unit precision between light emitting unit
(for the quantity of light emitting unit, with the ratio of the second wavelength-division multiplex element number be mostly than one), it is highly dense to meet
Therefore the multiplexing of the optical signal of degree reduces the cost of entire solution, also improve in the prior art for adjacent highly dense
Optical signal is spent in optical transmitting set internal crosstalk problem.
For a kind of optical module device for multi-wavelength transmission that the embodiment of the present invention is proposed, further pass through one group
Typical optical signal and typical light emitting unit structure are illustrated, to embody between light emitting unit and optical signal
Physical relationship.It wherein, is λ in the quantity of the optical signal1, λ2... ..., λ2NIt is a, the quantity of the light emitting unit be it is N number of,
And number of lasers included in each light emitting unit is when being 2, each laser in one light emitting unit of correspondence
Pre-determined distance is differed between the device wavelength of optical signal to be emitted, is specifically included:
According to pre-determined distance N by the λ1, λ2... ..., λ2NA wavelength is divided into N group, comprising: (λ1, λN+1), (λ2,
λN+2) ..., (λN, λ2N)；Wherein, each light emitting unit obtains the demand setting of one group of wavelength transmitting.
In specific implementation of the embodiment of the present invention, especially it is provided simultaneously with and sends and receives in the optical module device
When function, then optical module device further includes light receiving unit (for example, light receiving unit 60 as shown in Figure 2 and light receiving unit
70), first wave decomposition multiplex unit (for example, first wave decomposition multiplex unit 601 as shown in Figure 2) and the second wavelength-division demultiplexing
Unit (for example, second wavelength-division demultiplexing unit 80 as shown in Figure 2)；
The first wave decomposition multiplex unit is used for the optical signal λ that will be received in optical-fiber network1, λ2... ..., λ2N, split
At N group wavelength signals, including (λ1, λN+1), (λ2, λN+2) ..., (λN, λ2N)；
The N group wavelength signals are passed to N number of light receiving unit by the second wavelength-division demultiplexing unit respectively, by each light-receiving list
First wave decomposition multiplex unit in member by the wavelength (de) multiplexing of respective sets at independent two wavelength signals, and by setting
Detector completes the reception processing of optical signal.
As shown in Fig. 2, usually corresponding to each light emitting unit wherein in typical structure and being provided with a set of processing unit
40, driving unit 50, the light receiving unit (light receiving unit 60 and correspondence of correspondence first set light emitting unit as shown in Figure 2
The light receiving unit 70 of second set of light emitting unit), wherein in optical module device shown in Fig. 2, optical signal quantity is specially
The quantity of optical signal is λ1, λ2, λ3, λ4, then the method that is proposed according to the embodiment of the present invention, wherein laser 101 and laser
Device 102 is specifically respectively used to transmitting wavelength of optical signal λ1And λ3(or λ2And λ4).It may be noted that come, in Fig. 2, due to
Light receiving unit and the reason of light emitting unit layout type in optical module device, causes the second Wave decomposing multiplexer 80 in Fig. 2
The optical fiber for being transferred back to light receiving unit 60 is formd with the second wavelength division multiplexer 30 intersects effect, still, between be not present
The interactive process of optical signal.
In embodiments of the present invention, the corresponding relationship between the light emitting unit and laser can show as entity
The corresponding relationship between TOSA and its inner laser device in environment；The light emitting unit can also show as multiple TOSA's
Combination, at this point, laser then accordingly shows as packaged TOSA.That either above-mentioned appearance form, they are intended to show
Wavelength-division multiplex (being completed using the first wavelength division multiplexer) and transmitting unit between the laser that transmitting unit is included out
Between wavelength-division multiplex (i.e. using the second wavelength division multiplexer complete).In specific embodiment scene, due to different application scene
Under complexity difference, it is similar there are also the scene that third wavelength division multiplexer, the 4th wavelength division multiplexer are intervened, introduce scene at it
Still it is related to the mechanism that grouping proposed by the invention is realized in if, belongs in the scope of the present invention then remaining on.
It is λ in the quantity of the optical signal in conjunction with the embodiment of the present invention1, λ2... ..., λ2NIt is a, also, in the optical mode
When block assembly is specifically used for realizing 100G PAM4 optical module, as shown in figure 3, laser implement body in the first light emitting unit by
Packaged 25G TOSA1 and 25G TOSA2 is realized, in this implementation, uses the 25G TOSA1 and 25G
It include the mode of single laser inside TOSA2, however, the number of lasers for including can also inside it in concrete application scene
To be multiple, wherein 25G TOSA1 and 25G TOSA2 respectively it is internal comprising number of lasers be multiple when (such as: can be with
Regard the first transmitting unit in 2 as a TOSA, and contain 2 lasers inside it), the embodiment of the present invention is proposed described
First wavelength division multiplexer is then more likely to refer to the wavelength division multiplexer (such as AWG) inside TOSA.It is described in this implementation
Optical module device further include:
Each corresponding light emitting unit be provided with a set of PAM4 processing unit, driving unit, the first light receiving unit and
First wave decomposition multiplex unit；Wherein, corresponding first light emitting unit is additionally provided with the first light receiving unit, and described first
Light receiving unit includes 25G ROSA1 and 25G ROSA2；
The PAM4 processing unit, driving unit, the first light emitting unit and the first wavelength division multiplexer successively cascade；It is described
PAM4 processing unit is also connected with the 25G ROSA1 and 25G ROSA2；
Wherein, it is λ that 25G TOSA1 and 25G TOSA2, which is respectively used to launch wavelength,1And λN+1Optical signal；
The second wavelength-division demultiplexing unit is used to the optical signal received being divided into (λ1, λN+1), (λ2, λN+2) ...,
(λN, λ2N) group, and by (λ1, λN+1) it is transferred to first light receiving unit, so as to the 25G in first receiving unit
ROSA1 and 25G ROSA2 completes the λ1And λN+1Optical signal reception processing；Wherein, the second wavelength-division demultiplexing unit is also used
In by other (λ2, λN+2) ..., (λN, λ2N) group, it is respectively transmitted to corresponding second light receiving unit ... N/2 light receiving unit,
So that the 25G ROSA in each receiving unit completes the reception processing of respective sets optical signal.
It is λ in the quantity of the optical signal in conjunction with the embodiment of the present invention1, λ2... ..., λ2NIt is a, the optical module device tool
When body is for realizing 200G PAM4 optical module, as shown in figure 4, the laser implement body in the first light emitting unit is by packaged
25G TOSA1,25G TOSA2,25G TOSA3 and 25G TOSA4 are realized, with the optical module device further include:
Each corresponding light emitting unit is provided with a set of PAM4 processing unit, driving unit, the first light receiving unit, the
One wavelength-division demultiplexing unit and the second wavelength-division demultiplexing unit；Wherein, the first light receiving unit includes 25G ROSA1,25G
ROSA2,25G ROSA3 and 25G ROSA4；
The PAM4 processing unit, driving unit, the first light emitting unit and the first wavelength division multiplexer successively cascade；It is described
The optical signal that 25G TOSA1,25G TOSA2,25G TOSA3 and 25G TOSA4 are exported is coupled into first wavelength-division multiplex
Device；The PAM4 processing unit is also connected with the 25G ROSA1,25G ROSA2,25G ROSA3 and 25G ROSA4；
Wherein, it is (λ that 25G TOSA1,25G TOSA2,25G TOSA3 and 25G TOSA4, which are respectively used to launch wavelength,1,
λN/2+1, λ3N/2+1, λN+1) optical signal；
The second wavelength-division demultiplexing unit is used to the optical signal received being divided into (λ1, λN/2+1, λ3N/2+1, λN+1),
(λ2, λN/2+2, λ3N/2+2, λN+2) ..., (λN, λN/2+N, λ3N/2+N, λ2N) group, and by (λ1, λN/2+1, λ3N/2+1, λN+1) be transferred to it is described
First light receiving unit, so as to 25G ROSA1,25G ROSA2, the 25G ROSA3 and 25G in first receiving unit
(λ described in ROSA4 completion1, λN/2+1, λ3N/2+1, λN+1) optical signal reception processing；
Wherein, the second wavelength-division demultiplexing unit is also used to other (λ2, λN/2+2, λ3N/2+2, λN+2) ..., (λN, λN/2+N,
λ3N/2+N, λ2N) group, it is respectively transmitted to corresponding second light receiving unit ... N/2 light receiving unit, so as in each receiving unit
25G ROSA completes the reception processing of respective sets optical signal.
Embodiment 2:
As described in Figure 5, a kind of dual carrier PAM4 realized for the optical module device proposed using the embodiment of the present invention 1
The Transmission system of optical module composition.The system channel is divided into 2 echelons, i.e., a total of 2N wavelength channel, by its wavelength according to
It is respectively first echelon λ after ascending order arrangement1, λ2... ..., λNWith second echelon λN+1, λN+2... ... λ2N-1, λ2N, then successively from
The completion 2N wavelength that the optical signal composition N group of extraction respective sequence distributes to N number of light emitting unit in Liang Ge echelon leads to
The transmission of road signal.The connection of module rear end carries out multiplex using the AWG that port number is N.Several optical modules 100A1To optical module
100N1, wherein 100A1The optical signal of output combines (λ1, λN+1) exported after WDM multiplex in module by the port LC, then
Into the channel of postposition AWG 1；Wherein 100B1The light λ of output2, λN+2It is exported after WDM multiplex in module by the port LC, so
Enter the channel 2 of postposition Cyclic AWG afterwards；……；Wherein 100N1The optical signal of output combines (λN, λ2N) by module
It is exported after WDM multiplex by the port LC, subsequently into the channel N of postposition AWG.The optical signal of output is carried out by the AWG of postposition
Dense wave division multipurpose, by several wavelength Xs1, λN+1……λN, λ2NMultiplex is passed to a single mode optical fiber by 80-120km optical fiber
Defeated to arrive receiving end, using de-multiplexing technique, AWG is by the wavelength X in multiplex1, λN+1……λN, λ2NIt is demultiplexing as N number of channel, channel 1
Interior is wavelength X1, λN+1Optical signal, be input to optical module 100A2Receiving end.Due to λ1And λN+1Between wavelength interval it is larger,
Only need incoherent reception can partial wave, greatly reduce cost, the λ after partial wave1, λN+1Two ROSA are respectively enterd, by optical signal
Be converted to electric signal；It similarly, is λ in channel 22, λN+2Optical signal, be input to optical module 100B2Receiving end, then after partial wave
Into two ROSA；……；It is λ in the N of channelN, λ2NOptical signal, be input to optical module 100N2Receiving end, then partial wave is laggard
Enter two ROSA.Then electric signal is converted optical signal by ROSA, is decoded via PAM4Gearbox and completes to transmit.Wherein,
Optical signal includes TDC dispersion compensation unit and OA optical amplification unit in 40-120km fiber transmission link.If transmission distance
From closer, then OA quantity or the change position OA can be reduced.
In embodiments of the present invention, in a communication system, minimum wavelength spacing is 50GHz, can have 2N wavelength logical
Road is arranged as λ according to wavelength ascending order1, λ2... ..., λNAnd λN+1, λN+2... ..., λ2N, then two output lights of optical module 100A are believed
Number wavelength is respectively λ1With λN+1, two output optical signal wavelength of optical module 100B are respectively λ2With λN+2... ..., optical module
Two output optical signal wavelength of 100N are respectively λNWith λ2N, multiplex then is carried out using matched Cyclic AWG in rear end,
Realize the dense wave division multipurpose transmission of 2N wavelength.
Particularly, wavelength XA1, λA2……λZ1, λZ2For C-band wavelength, minimum wavelength spacing is that (wave-length coverage is 50GHz
1) 1529.16nm to 1567.01nm is shown in Table in detail, contain up to 96 different wave length signal wavelength-divisions and be multiplexed into a single-mode optics
Fibre carries out signal transmission, it can be achieved that maximum 50Gbps × 96, the i.e. data throughout of maximum 4.8Tbps.
Embodiment 3:
The embodiment of the invention also provides a kind of optical module implementation method for multi-wavelength transmission, institutes of the embodiment of the present invention
The implementation method proposed can be used for realizing jointly with system described in device described in embodiment 1 or embodiment 2, such as scheme
Shown in 6, method includes:
In step 201, it obtains in optical module device and possesses in the quantity of light emitting unit and single light emitting unit
For emit specified wavelength signal laser quantity.
In step 202, the signal wavelength quantity of optical signal to be launched is determined, and according to gathering around in single light emitting unit
The optical signal is split into one group or multiple groups optical signal for emitting the quantity of the laser of specified wavelength signal by some.
Wherein, each group of optical signal includes and number of lasers phase in the corresponding specified single light emitting unit for completing transmitting
Matching.
In step 203, optical signal first completes the grouping light inside light emitting unit from the optical module emission process
Then light multiplexing between signal completes the light multiplexing between each group optical signal between light emitting unit.
The embodiment of the present invention carries out preparatory grouping to wavelength to be launched, and has fully considered inside light emitting unit
The property difference of light multiplexing between light multiplexing and light emitting unit reduces in such a way that optical signal is grouped to light emitting unit
The required precision of the first internal wavelength division multiplexer, and by improving the second wavelength division multiplexer precision (phase between light emitting unit
It is mostly than one), to meet highdensity light with the ratio of the second wavelength division multiplexer quantity for the quantity of light emitting unit
Therefore the multiplexing of signal reduces the cost of entire solution, also improve and adjacent high density light is believed in the prior art
Number in optical transmitting set internal crosstalk problem.
In conjunction with the embodiment of the present invention there are a kind of preferred implementation, it is provided with and the light emitting in the optical module
The light receiving unit that unit matches, specific:
Optical signal first completes the demultiplexing between the grouping optical signal after being obtained by optical module, and will demultiplex it
Each grouping optical signal afterwards sends corresponding light receiving unit to；
Each light receiving unit again demultiplexes the one group of optical signal respectively got, and by its internal optical detector
Complete the reception processing of optical signal.
In conjunction with the embodiment of the present invention, the case for additionally providing the combination of two kinds of optical signals is specifically addressed:
Situation one:
It is λ in the quantity of the optical signal1, λ2... ..., λ2NA, the quantity of the light emitting unit is N number of and each
When number of lasers included in a light emitting unit is 2, each laser in one light emitting unit of correspondence is wanted
Pre-determined distance is differed between the wavelength of optical signal of transmitting, is specifically included:
According to pre-determined distance N by the λ1, λ2... ..., λ2NA wavelength is divided into N group, comprising: (λ1, λN+1), (λ2,
λN+2) ..., (λN, λ2N)；
Wherein, each light emitting unit obtains the demand setting of one group of wavelength transmitting.
Situation two:
The quantity of the optical signal is λ1, λ2... ..., λ2NA, the quantity of the light emitting unit is N/2, and each
When number of lasers included in a light emitting unit is 4, each laser in one light emitting unit of correspondence is wanted
Pre-determined distance is differed between the wavelength of optical signal of transmitting, is specifically included:
According to pre-determined distance N by the λ1, λ2... ..., λ2NA wavelength is divided into N/2 group, comprising: (λ1, λN/2+1, λ3N/2+1,
λN+1), (λ2, λN/2+2, λ3N/2+2, λN+2) ..., (λN, λN/2+N, λ3N/2+N, λ2N)；
Wherein, each light emitting unit obtains the demand setting of one group of wavelength transmitting；Wherein, N/2,3N/2 take its operation
Integer part.
Both the above situation is only two kinds in many achievable modes in technical though proposed by the present invention, therefore,
Based on disclosure of that of the embodiment of the present invention, when being not necessarily to creative work, the signal combination and light emitting done
Laser constitution mode in unit belongs in the range of of the invention protect.
Those of ordinary skill in the art will appreciate that all or part of the steps in the various methods of embodiment is can to lead to
Program is crossed to instruct relevant hardware and complete, which can be stored in a computer readable storage medium, storage medium
It may include: read-only memory (ROM, Read Only Memory), random access memory (RAM, Random Access
Memory), disk or CD etc..
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (10)
1. a kind of optical module device for multi-wavelength transmission, which is characterized in that the optical module device is for emitting one group of wave
A length of λ1, λ2... ..., λkOptical signal, optical module device includes:
One or more light emitting unit, and there is the laser of corresponding at least two output wavelength quantity in each light emitting unit
Device, and the first wavelength-division for completing the output port that at least two output wavelength is coupled to the light emitting unit are multiple
Use device；
Corresponding to the output optical port of each light emitting unit, coupled respectively with the second wavelength division multiplexer；
Wherein, the laser in each light emitting unit is selected from the optical signal for the wavelength of transmitting, and a corresponding light
Pre-determined distance is differed between each laser wavelength of optical signal to be emitted in transmitting unit.
2. the optical module device according to claim 1 for multi-wavelength transmission, which is characterized in that in the optical signal
Quantity is λ1, λ2... ..., λ2NA, the quantity of the light emitting unit is N number of, and included in each light emitting unit
When number of lasers is 2, phase between each laser wavelength of optical signal to be emitted in one light emitting unit of correspondence
Poor pre-determined distance, specifically includes:
According to pre-determined distance N by the λ1, λ2... ..., λ2NA wavelength is divided into N group, comprising: (λ1, λN+1), (λ2, λN+2) ...,
(λN, λ2N)；
Wherein, each light emitting unit obtains the demand setting of one group of wavelength transmitting.
3. the optical module device according to claim 2 for multi-wavelength transmission, which is characterized in that optical module device also wraps
Include light receiving unit, first wave decomposition multiplex unit and the second wavelength-division demultiplexing unit；
The first wave decomposition multiplex unit is used for the optical signal λ that will be received in optical-fiber network1, λ2... ..., λ2N, split into N group
Wavelength signals, including (λ1, λN+1), (λ2, λN+2) ..., (λN, λ2N)；
The N group wavelength signals are passed to N number of light receiving unit by the second wavelength-division demultiplexing unit respectively, by each light receiving unit
First wave decomposition multiplex unit by the wavelength (de) multiplexing of respective sets at independent two wavelength signals, and by setting detection
Device completes the reception processing of optical signal.
4. the optical module device according to claim 2 for multi-wavelength transmission, which is characterized in that packaged in the optical mode
When setting specifically for realizing 100G PAM4 optical module, the laser implement body in the first light emitting unit is by packaged 25G
TOSA1 and 25G TOSA2 realization, the optical module device further include:
Each corresponding light emitting unit is provided with a set of PAM4 processing unit, driving unit, the first light receiving unit and first
Wavelength-division demultiplexing unit；Wherein, corresponding first light emitting unit is additionally provided with the first light receiving unit, and first light connects
Receiving unit includes 25G ROSA1 and 25G ROSA2；
The PAM4 processing unit, driving unit, the first light emitting unit and the first wavelength division multiplexer successively cascade；The PAM4
Processing unit is also connected with the 25G ROSA1 and 25G ROSA2；
Wherein, it is λ that 25G TOSA1 and 25G TOSA2, which is respectively used to launch wavelength,1And λN+1Optical signal；
The second wavelength-division demultiplexing unit is used to the optical signal received being divided into (λ1, λN+1), (λ2, λN+2) ..., (λN, λ2N)
Group, and by (λ1, λN+1) be transferred to first light receiving unit, so as in first receiving unit 25G ROSA1 and
25G ROSA2 completes the λ1And λN+1Optical signal reception processing；Wherein, the second wavelength-division demultiplexing unit is also used to it
Its (λ2, λN+2) ..., (λN, λ2N) group, it is respectively transmitted to corresponding second light receiving unit ... N/2 light receiving unit, so as to each
25G ROSA in receiving unit completes the reception processing of respective sets optical signal.
5. the optical module device according to claim 1 for multi-wavelength transmission, which is characterized in that in the optical signal
Quantity is λ1, λ2... ..., λ2NIt is a, when the optical module device is specifically used for realizing 200G PAM4 optical module, the first light emitting
Laser implement body in unit is realized by packaged 25G TOSA1,25G TOSA2,25G TOSA3 and 25G TOSA4, with institute
State optical module device further include:
Each corresponding light emitting unit is provided with a set of PAM4 processing unit, driving unit, the first light receiving unit, first wave
Decomposition multiplex unit and the second wavelength-division demultiplexing unit；Wherein, the first light receiving unit include 25G ROSA1,25G ROSA2,
25G ROSA3 and 25G ROSA4；
The PAM4 processing unit, driving unit, the first light emitting unit and the first wavelength division multiplexer successively cascade；The 25G
The optical signal that TOSA1,25G TOSA2,25G TOSA3 and 25G TOSA4 are exported is coupled into first wavelength division multiplexer；Institute
PAM4 processing unit is stated also to be connected with the 25G ROSA1,25G ROSA2,25G ROSA3 and 25G ROSA4；
Wherein, it is (λ that 25G TOSA1,25G TOSA2,25G TOSA3 and 25G TOSA4, which are respectively used to launch wavelength,1, λN/2+1,
λ3N/2+1, λN+1) optical signal；
The second wavelength-division demultiplexing unit is used to the optical signal received being divided into (λ1, λN/2+1, λ3N/2+1, λN+1), (λ2,
λN/2+2, λ3N/2+2, λN+2) ..., (λN, λN/2+N, λ3N/2+N, λ2N) group, and by (λ1, λN/2+1, λ3N/2+1, λN+1) it is transferred to described
One light receiving unit, so as to 25G ROSA1,25G ROSA2,25G ROSA3 and the 25G ROSA4 in first receiving unit
(λ described in completion1, λN/2+1, λ3N/2+1, λN+1) optical signal reception processing；
Wherein, the second wavelength-division demultiplexing unit is also used to other (λ2, λN/2+2, λ3N/2+2, λN+2) ..., (λN, λN/2+N, λ3N/2+N,
λ2N) group, it is respectively transmitted to corresponding second light receiving unit ... N/2 light receiving unit, so as to the 25G in each receiving unit
ROSA completes the reception processing of respective sets optical signal.
6. the optical module device according to claim 1 to 4 for multi-wavelength transmission, which is characterized in that in the light
When signal is in C-band, the spacing range of each wavelength is between 1529.16nm to 1567.01nm between signal light.
7. a kind of optical module implementation method for multi-wavelength transmission, which is characterized in that method includes
Obtain possess in the quantity of light emitting unit in optical module device and single light emitting unit for emitting specified wave
The quantity of the laser of long signal；
Determine the signal wavelength quantity of optical signal to be launched, and specified for emitting according to what is possessed in single light emitting unit
The optical signal is split into one group or multiple groups optical signal by the quantity of the laser of wavelength signals；Wherein, each group of optical signal
Comprising matching with number of lasers in the corresponding specified single light emitting unit for completing transmitting；
Wherein, optical signal is first completed between the grouping optical signal inside light emitting unit from the optical module emission process
Then light multiplexing completes the light multiplexing between each group optical signal between light emitting unit.
8. the optical module implementation method according to claim 7 for multi-wavelength transmission, which is characterized in that the optical module
In be provided with the light receiving unit to match with the light emitting unit, it is specific:
Optical signal first completes the demultiplexing between the grouping optical signal after being obtained by optical module, and will be after demultiplexing
Each grouping optical signal sends corresponding light receiving unit to；
Each light receiving unit again demultiplexes the one group of optical signal respectively got, and is completed by its internal optical detector
The reception of optical signal is handled.
9. the optical module implementation method according to claim 7 for multi-wavelength transmission, which is characterized in that believe in the light
Number quantity be λ1, λ2... ..., λ2NA, the quantity of the light emitting unit is N number of, and is wrapped in each light emitting unit
When the number of lasers contained is 2, each laser wavelength of optical signal to be emitted in one light emitting unit of correspondence it
Between differ pre-determined distance, specifically include:
According to pre-determined distance N by the λ1, λ2... ..., λ2NA wavelength is divided into N group, comprising: (λ1, λN+1), (λ2, λN+2) ...,
(λN, λ2N)；
Wherein, each light emitting unit obtains the demand setting of one group of wavelength transmitting.
10. the optical module implementation method according to claim 7 for multi-wavelength transmission, which is characterized in that the light letter
Number quantity be λ1, λ2... ..., λ2NA, the quantity of the light emitting unit is N/2, and institute in each light emitting unit
Each laser wavelength of optical signal the to be emitted when number of lasers for including is 4, in one light emitting unit of correspondence
Between differ pre-determined distance, specifically include:
According to pre-determined distance N by the λ1, λ2... ..., λ2NA wavelength is divided into N/2 group, comprising: (λ1, λN/2+1, λ3N/2+1, λN+1),
(λ2, λN/2+2, λ3N/2+2, λN+2) ..., (λN, λN/2+N, λ3N/2+N, λ2N)；
Wherein, each light emitting unit obtains the demand setting of one group of wavelength transmitting；Wherein, N/2,3N/2 take the whole of its operation
Number part.
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| CN115021811A (en) * | 2022-06-29 | 2022-09-06 | 武汉光迅科技股份有限公司 | Optical power reporting method and device of optical module |
| CN115189774A (en) * | 2022-06-29 | 2022-10-14 | 武汉光迅科技股份有限公司 | Marshallable optical module and using method |
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Application publication date: 20190104 |