CN102624478B - A kind of wavelength tag loading method and device - Google Patents
A kind of wavelength tag loading method and device Download PDFInfo
- Publication number
- CN102624478B CN102624478B CN201210071485.4A CN201210071485A CN102624478B CN 102624478 B CN102624478 B CN 102624478B CN 201210071485 A CN201210071485 A CN 201210071485A CN 102624478 B CN102624478 B CN 102624478B
- Authority
- CN
- China
- Prior art keywords
- vmux
- control command
- parts
- code word
- wavelength
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Optical Communication System (AREA)
Abstract
The present invention provides a kind of wavelength tag loading method, including：Generate the wavelength tag signal of each optical channel；Control command is generated according to the wavelength tag signal, the control command is sent and gives VMUX parts；The VMUX parts are according to the control command, and the luminous intensity to each optical channel of the VMUX parts is adjusted.The present invention also provides a kind of wavelength tag loading device.The present invention is not changing existing system structure, does not increase existing system interface quantity, in the case of not increasing extra optical device cost, wavelength tag management function is added in wavelength-division multiplex system.
Description
Technical field
The present invention relates to optical communication technique, in particular, it is related to optical communication system medium wavelength label loading method and dress
Put.
Background technology
Wavelength label technology is to be superimposed low frequency on the wavelength in optical-fiber network to adjust top signal, while each node in a network
Tune top signal in upper identification optical channel, information entrained in the signal of top is adjusted by solving, and obtains optical signal in a network
Transmission path and other wavelength channel relevant informations.
Wavelength label technology refers to the Chinese posts and telecommunications industry standard YD/T 2003-2009 " OADMs of restructural
(ROADM) Appendix D of equipment and technology requirement ", describes ROADM (Reconfigurable Optical Add-Drop
Multiplexer, ROADM) application in wavelength trace monitoring (wavelength tag) technology.In wavelength path
Source endpoint, using encoder be modulated coding before wavelength signals enter wavelength-division network, be that each wavelength signals are additional
One the whole network is uniquely identified (wavelength tag)；In each reference point of each node passed through in wavelength path, it can lead to
Embedded wavelength tag detector is crossed to monitor and recognize the label for each wavelength for passing through the point.
The tune top technology introduction that wavelength tag is related to is as follows：It is that each wavelength loads a tune top in wavelength-division multiplex system
(pilot tone) signal, it is possible to achieve a variety of special applications, this in the industry cycle early has research.Top signal is adjusted also to be low frequency sometimes
Perturbation (low-frequency dither) signal, wavelength signals loading adjusts influence of the top signal to transmission performance almost to neglect
Slightly disregard.The many units such as Britain BT laboratories, Sweden Ericsson in 1993 are combined on lightwave technology journal to be delivered
" A transport network layer based on optical network elements (one kind be based on optical-fiber network
The transmission Internet of network element) ", it is proposed that realize the wavelength channel in wavelength-division multiplex system needed for fault management using top signal is adjusted
Confirmation and power management.Patent " the method for the Kim B.Roberts applications of also 1994 Nortel companies of Canada
(light is passed and apparatus for monitoring performance of optical transmission systems
The method and apparatus of the performance monitoring of defeated system) ", patent publication No. is US005513029, it is proposed that one kind monitoring image intensifer
The method of performance, that is, monitor the tune top signal of known modulation depth, realize the signal of image intensifer and estimating for noise component(s).This
It is outer to also have Fred Heismann of AT＆T Labs of the U.S. in 1996 et al. to deliver " signal in the meetings of ECOC ' 96
Tracking and performance monitoring in multi-wavelength optical networks (many ripples
The signal trace of long optical-fiber network and performance monitoring) ", paper number is WeB2.2, discloses a kind of wavelength division multiplexed network and realizes
The scheme of wire type Wavelength routing tracking, i.e., each wavelength modulates unique adjusts and pushes up signal, and passes through frequency shift keying side
Formula carries out the coding of digital information, and top signal is adjusted in any website monitoring in optical-fiber network, so as to know the wavelength of the whole network
Routing iinformation.
Canadian Tropic Networks house journals US7155122 " Channel identification in
Proposed in communications networks (gap marker of communication network) " and low frequency modulations letter is carried out to each wavelength
The loading of number (dither tone), realizes wavelength tag information transfer.Each passage is required for using one group of independent feedback control
Circuit.
The patent CN02102246 " method and its device of implementing modulation in optical transmission system " of Huawei Tech Co., Ltd
Describe a kind of loading method adjusted and push up signal.The patent requirements increase electric adjustable optical attenuator and tune on each input channel
Device processed, then be controlled by one analog signal of modulator generation.
Prior art requirement increases a set of control device on each unicast long-channel.So do, considerably increase and be
System complexity, improves cost.
The content of the invention
The technical problem to be solved in the present invention is to propose a kind of wavelength tag loading method and device, overcomes the prior art to be
Realize that wavelength label technology introduces a large amount of parts and optical fiber interface so that system is more complicated, and integrated level is low, cost height etc. is asked
Topic.
In order to solve the above-mentioned technical problem, the invention provides a kind of wavelength tag loading method, including：
Generate the wavelength tag signal of each optical channel；
Control command is generated according to the wavelength tag signal, the control command is sent and gives VMUX parts；
The VMUX parts are according to the control command, and the luminous intensity to each optical channel of the VMUX parts is adjusted
Section.
Further, the above method can also have the characteristics that：
The wavelength tag signal is the code stream that multiple code words or code word combination are constituted；
Described to generate control command according to the wavelength tag signal, send the control command includes to VMUX parts：
The corresponding control command of each code word or code word combination in the streams of code words of the wavelength tag signal is obtained, by each code word
Or the corresponding control command of code word combination is sent to the VMUX parts successively.
Further, the above method can also have the characteristics that：
Methods described also includes, and each code word or the corresponding control command of code word combination are determined according to following manner：
When the VMUX parts are closed loop VMUX parts, the luminous power detection letter of each optical channel of VMUX parts is obtained
Breath, the work at present value of each optical channel is obtained according to the luminous power detection information, by the work at present value and target modulation
Value is compared, and judges whether that meeting modulation requires, if be unsatisfactory for, according to the target modulation value, adjust each code word or
The corresponding control command of code word combination, is required until meeting the modulation.
Further, the above method can also have the characteristics that：
The work at present value includes current luminous power and/or current modulation depth, and the target modulation value includes target
Luminous power and/or target modulation depth.
Further, the above method can also have the characteristics that：
Methods described also includes, and each code word or the corresponding control command of code word combination are determined according to following manner：
When the VMUX parts are open loop VMUX parts,
The control command demarcated under different modulating requirement, generates control command list；
According to target modulation value, the control command list is inquired about, each code word or the corresponding control life of code word combination is obtained
Order.
Further, the above method can also have the characteristics that：
Control command under the demarcation different modulating requirement includes：Demarcate the corresponding control life of different optical power attenuation amounts
Order；Or, the corresponding control command of different modulating depth；
The target modulation value is target optical power attenuation amount or target modulation depth.
The present invention also provides a kind of wavelength tag loading device, including information control unit, VMUX control units and VMUX
Part, wherein：
Described information control unit is used for, and generates the wavelength tag signal of each optical channel；
The VMUX control units are used for, and control command is generated according to the wavelength tag signal, send the control life
Make to the VMUX parts；
The VMUX parts are used for, and according to the control command, the luminous intensity to each optical channel of the VMUX parts is entered
Row regulation.
Further, said apparatus can also have the characteristics that：
The code stream that the wavelength tag signal of described information control unit generation constitutes for multiple code words or code word combination；
The VMUX control units are to be used for：Obtain each code word or code word combination in the streams of code words of the wavelength tag signal
Corresponding control command, the VMUX parts are sent to by each code word or the corresponding control command of code word combination successively.
Further, said apparatus can also have the characteristics that：
When the VMUX parts are closed loop VMUX parts, described device also includes：Feedback control unit, wherein：
The VMUX parts are additionally operable to：The luminous power detection information of each optical channel of VMUX parts is obtained, is exported to institute
State feedback control unit；
The feedback control unit is used for：Each light is obtained according to the luminous power detection information of each passage of VMUX parts to lead to
The work at present value in road, is sent to the VMUX control units；
The VMUX control units are additionally operable to：Compare the work at present value and target modulation value, judge whether to meet and adjust
System is required, if be unsatisfactory for, according to the target modulation value, adjusts each code word or the corresponding control command of code word combination, directly
Required to the modulation is met.
Further, said apparatus can also have the characteristics that：
The work at present value includes current luminous power and/or current modulation depth, and the target modulation value includes target
Luminous power and/or target modulation depth.
Further, said apparatus can also have the characteristics that：
When the VMUX parts are open loop VMUX parts, the VMUX control units are additionally operable to, and preserve the VMUX parts
Control command table, the control command under different modulating requirement is included in the control command table；And, sending control command
Before the VMUX parts, according to target modulation value, the control command list is inquired about, each code word or code word combination correspondence is obtained
Control command.
Further, said apparatus can also have the characteristics that：
The control command table includes：The corresponding control command of different optical power attenuation amounts；Or, different modulating depth
Corresponding control command；
The target modulation value is target optical power attenuation amount or target modulation depth.
The present invention is proposed in wavelength-division multiplex system, and the method and dress of wavelength tag loading are realized based on VMUX parts
Put.The present invention is not changing existing system structure, does not increase existing system interface quantity, does not increase the feelings of extra optical device cost
Under condition, wavelength tag management function is added in wavelength-division multiplex system.
Brief description of the drawings
Fig. 1 is closed loop VMUX modular construction figures；
Fig. 2 is open loop VMUX modular construction figures；
Fig. 3 is the installation drawing that closed loop VMUX realizes wavelength label technology；
Fig. 4 is the flow chart that closed loop VMUX realizes wavelength label technology；
Fig. 5 is the installation drawing that open loop VMUX realizes wavelength label technology；
Fig. 6 is the flow chart that open loop VMUX realizes wavelength label technology.
Embodiment
For the object, technical solutions and advantages of the present invention are more clearly understood, below in conjunction with accompanying drawing to the present invention
Embodiment be described in detail.It should be noted that in the case where not conflicting, in the embodiment and embodiment in the application
Feature can mutually be combined.
Application of the present invention according to wavelength label technology in wavelength-division multiplex system, it is proposed that using high speed VOA
VMUX (the Optical Channel Power of (Variable Optical Attenuator, adjustable optical attenuator)
Variable Multiplex, light path power adjustable multiplexer) part realizes wavelength label technology.Wavelength tag information is through toning
Frequently, after amplitude modulation, any modulation system such as phase modulation, wavelength tag signal is transformed into.The loading of wavelength tag signal can pass through
VMUX parts individually carry out light intensity modulation to each wavelength to realize.High speed VOA components in VMUX parts can be realized soon
The optical power attenuation of speed change, it is achieved thereby that fast-changing light intensity modulation, it is achieved thereby that wavelength tag signal plus
Carry.VMUX parts have path multiplexing function, it is achieved thereby that arbitrarily loading wavelength tag signal to all optical channels.
VMUX devices are divided into closed loop VMUX and open loop VMUX, Fig. 1 show closed loop VMUX structure, and Fig. 2 is shown out
Ring VMUX structure.Closed loop VMUX and open loop VMUX difference is, closed loop VMUX after the luminous intensity regulation of each passage,
Before multiplex, optical power monitor is added, luminous intensity regulation can be carried out according to the optical power monitoring result to each passage.
And open loop VMUX only carries out controllable light intensity regulation and multiplex.
In the wavelength-division multiplex system using VMUX, because VMUX has controllable adjustment work(to the luminous intensity of each passage
Can, so, it is not necessary to increase interface, it is only necessary to extend VMUX control function, realize the wavelength to any optical channel in circuit
The loading of label signal.The present invention is not changing existing system structure, does not increase existing system interface quantity, does not increase extra light
In the case of device cost, wavelength tag management function is added in wavelength-division multiplex system.
The embodiment of the present invention provides a kind of wavelength tag loading method, including：
Generate the wavelength tag signal of each optical channel；
Control command is generated according to the wavelength tag signal, the control command is sent and gives VMUX parts；
The VMUX parts are according to the control command, and the luminous intensity to each optical channel of the VMUX parts is adjusted
Section.
Wherein, the wavelength tag signal is the code stream that multiple code words or code word combination are constituted；
Described to generate control command according to the wavelength tag signal, send the control command includes to VMUX parts：
The corresponding control command of each code word or code word combination in the streams of code words of the wavelength tag signal is obtained, by each code word
Or the corresponding control command of code word combination is sent to the VMUX parts successively.
Wherein, methods described also includes, and each code word or the corresponding control command of code word combination are determined according to following manner：
When the VMUX parts are closed loop VMUX parts, the luminous power detection letter of each optical channel of VMUX parts is obtained
Breath, the work at present value of each optical channel is obtained according to the luminous power detection information, by the work at present value and target modulation
Value is compared, and judges whether that meeting modulation requires, if be unsatisfactory for, according to the target modulation value, adjust each code word or
The corresponding control command of code word combination, is required until meeting the modulation.
Wherein, the work at present value includes current luminous power and/or current modulation depth, and the target modulation value includes
Target luminous power and/or target modulation depth.
Wherein, methods described also includes, and each code word or the corresponding control command of code word combination are determined according to following manner：
When the VMUX parts are open loop VMUX parts,
The control command demarcated under different modulating requirement, generates control command list；
According to target modulation value, the control command list is inquired about, each code word or the corresponding control life of code word combination is obtained
Order.
Wherein, the control command under the demarcation different modulating requirement includes：Demarcate different optical power attenuation amounts corresponding
Control command；Or, the corresponding control command of different modulating depth；
The target modulation value is target optical power attenuation amount or target modulation depth.
The present invention also provides a kind of wavelength tag loading device, including information control unit, VMUX control units and VMUX
Part, wherein：
Described information control unit is used for, and generates the wavelength tag signal of each optical channel；
The VMUX control units are used for, and control command is generated according to the wavelength tag signal, send the control life
Make to the VMUX parts；
The VMUX parts are used for, and according to the control command, the luminous intensity to each optical channel of the VMUX parts is entered
Row regulation.
Wherein, the wavelength tag signal of described information control unit generation is that multiple code words or code word combination are constituted
Code stream；
The VMUX control units are to be used for：Obtain each code word or code word combination in the streams of code words of the wavelength tag signal
Corresponding control command, the VMUX parts are sent to by each code word or the corresponding control command of code word combination successively.
Wherein, when the VMUX parts are closed loop VMUX parts, described device also includes：Feedback control unit, wherein：
The VMUX parts are additionally operable to：The luminous power detection information of each optical channel of VMUX parts is obtained, is exported to institute
State feedback control unit；
The feedback control unit is used for：Each light is obtained according to the luminous power detection information of each passage of VMUX parts to lead to
The work at present value in road, is sent to the VMUX control units；
The VMUX control units are additionally operable to：Compare the work at present value and target modulation value, judge whether to meet and adjust
System is required, if be unsatisfactory for, according to the target modulation value, adjusts each code word or the corresponding control command of code word combination, directly
Required to the modulation is met.
Wherein, the work at present value includes current luminous power and/or current modulation depth, and the target modulation value includes
Target luminous power and/or target modulation depth.
Wherein, when the VMUX parts are open loop VMUX parts；
The VMUX control units are additionally operable to, and are preserved in the control command table of the VMUX parts, the control command table
Include the control command under different modulating requirement；And, before control command is sent to the VMUX parts, according to target modulation
Value, inquires about the control command list, obtains each code word or the corresponding control command of code word combination.
Wherein, the control command table includes：The corresponding control command of different optical power attenuation amounts；Or, the not people having the same aspiration and interest
The corresponding control command of depth processed；
The target modulation value is target optical power attenuation amount or target modulation depth.
The apparatus and method of wavelength label technology, which are said, to be realized to closed loop VMUX of the present invention with reference to Fig. 3
It is bright.
Realize that device includes using closed loop VMUX：Information control unit 24, VMUX control units 22, feedback control unit
23rd, closed loop VMUX parts 20.
As in Fig. 1 and Fig. 3, closed loop VMUX parts 20 include：
Light intensity equalizer 11, comprising high speed VOA, the luminous power to each passage carries out different degrees of decay, is used for
Adjust the luminous intensity of each passage；
Light detection device 12, for carrying out light splitting (settable light splitting ratio be less than 10%) according to a certain percentage, and by light splitting
Obtained smaller part light splitting carries out photoelectric conversion, so as to obtain luminous intensity Monitoring Data；
Wave multiplexer 13, multiplex is carried out for the light to each passage Single wavelength；
Control interface 14, for controlling light intensity equalizer 11, and, the data obtained of light detection device 12 is handled,
Also realize VMUX and outside communication function.
Described information control unit 24 is used for：The wavelength tag information transmitted is needed to be modulated each optical channel, it is raw
Into the corresponding wavelength tag signal of each optical channel, the wavelength tag signal of each optical channel is sent to VMUX control units 22.
Wherein, by carrying out frequency modulation, amplitude modulation, one or more modulation systems generation wavelength tags letters such as phase modulation to wavelength tag information
Number.
The feedback control unit 23 is used for：Receive the luminous power detection for each channel wavelength that closed loop VMUX parts are sent
Information, carries out data analysis to luminous power detection information, analyzes the size of each channel optical power, and wavelength tag signal
To the modulation depth value of each passage optical signal, by the work at present value of closed loop VMUX parts, VMUX control units are sent to.When
Preceding working value can be the modulation depth of the actual luminous power size of each passage and/or reality, or wavelength tag signal is strong
Other values for representing each passage actual working state such as degree.
The VMUX control units 22 are used for：The wavelength tag signal that receive information control unit 24 is exported respectively, and
The work at present value that feedback control unit 23 is exported, control command is sent to closed loop VMUX parts.VMUX control units are according to ripple
Long label signal, control command is sent to closed loop VMUX parts, and the luminous intensity of each passage of control closed loop VMUX parts is adjusted, together
When, according to work at present value, control command is adjusted, each passage of VMUX is reached target modulation value.Target modulation value can be wrapped
Include the luminous power size of target and the modulation depth of target.The control command that VMUX control units 22 are sent will meet closed loop VMUX
The requirement of part, can be data signal or analog signal corresponding with luminous intensity regulated quantity.
The closed loop VMUX parts are used for：The luminous power detection information of each channel wavelength is sent to feedback control unit
23；And, the control command that VMUX control units 22 are sent is received, the luminous intensity to each passage is adjusted, can passed through
The luminous intensity of each passage is adjusted high speed VOA.
As shown in figure 4, the step of realizing wavelength label technology based on closed loop VMUX includes：
Step 401, information control unit 24 generates the wavelength tag signal of each passage, is sent to VMUX control units
22；
Each passage is needed the wavelength tag information transmitted to be modulated by information control unit 24, generates each passage pair
The wavelength tag signal answered.Then, the wavelength tag signal of each passage is sent to VMUX control units 22.Wavelength tag is believed
Breath can be by frequency modulation, amplitude modulation, the Different Modulations generation wavelength tag signal such as phase modulation.It is illustrated below, 80 ripple multiplex
The VMUX parts of function choose wherein passage n, it is assumed that using the light intensity of ASK (amplitude shift keying method) modulation, that is, control passage n
Degree is with wavelength tag information change, and it is Ant1 that luminous power size is controlled during transmission code word 1, and luminous power is controlled during transmission code word 0
Size is Ant0.In addition to ASK, FSK, PSK and other modulation systems can.Accordingly, during FSK modulation, transmitted codewords 1
When, frequency is f1, when amplitude is Ant1, transmitted codewords 0, and frequency is f2, and amplitude is Ant0.
In step 401, passage n is needed the wavelength tag information transmitted to be converted into wavelength tag by information control unit 24
Signal, that is, 1/0 binary code stream changed, VMUX control units 22 are sent to by code stream.
In addition to the code stream of 1/0 change, multilevel code stream is can also be, wavelength tag signal can be exponent more than one group.
Using amplitude modulation(PAM) mode, three exponents are defined, it is Ant3 that luminous power size is controlled during transmission code word A+V, is controlled during transmission code word A
Luminous power size is Ant2, and it is Ant1 that luminous power size is controlled during transmission code word A-V.Code stream is sent to by information control unit 24
VMUX control units 22.
Step 402, the luminous power detection information of each passage is sent to feedback control unit by closed loop VMUX parts；
The luminous intensity detected value of each passage is sent to VMUX component controls by the light detection device 12 of closed loop VMUX parts 20
And interface 14.The luminous intensity detected value of each passage is sent to feedback control unit 23 by VMUX component controls and interface 14.
Step 403, feedback control unit 23 analyzes each passage work at present value and is sent to VMUX control units 22；
Feedback control unit 23 carries out data analysis to the luminous intensity detection information of each passage, obtains closed loop VMUX parts
Work at present value, be sent to VMUX control units 22, to the VMUX of 80 ripple multiplex, then respectively obtain the current work of 80 passages
Work value.
In this example, the receiving channel n of feedback control unit 23 luminous intensity detected value periodically carries out data analysis, obtained
To work at present value.Passage n work at present value, transmission 1 time of code word watt level is an1, and luminous power is big during transmission code word 0
Small is an0.It is pn=(an1+an0)/2, mn=(an1-an0)/(an1+an0) that relation, which can be set, is worked as with regard to calculating
Preceding luminous power is pn, and current modulation depth is mn.
Step 404, VMUX control units contrast work at present value and target modulation value, if work at present value and target are adjusted
Value processed is unsatisfactory for preparatory condition, then continues step 405, if work at present value and target modulation value meet preparatory condition, after
Continuous step 406；
VMUX control units 22 contrast the work at present value and target modulation value of each passage.In the present example it is assumed that passage n
Target modulation value be (luminous power size Pnt, modulation depth value Mnt), setting relation is Pnt=(Ant1+Ant0)/2, target
Modulation depth value is set as Mnt=(Ant1-Ant0)/(Ant1+Ant0), then calculates and obtain target modulation value, during transmission code word 1
Luminous power size is Ant1=Pnt (1+Mnt), and transmission 0 time of code word watt level is Ant0=Pnt (1-Mnt).
Above-mentioned calculating target luminous power, the method for target modulation depth are defined for the present invention, and it can be carried out as needed
He defines, and is weighed using other specification and whether reaches that modulation requires that this is not limited by the present invention.
Compare passage n work at present value (pn, mn) and target modulation value (Pnt, Mnt), can also compare in this example
Passage n work at present value (an1, an0) and target modulation value (Ant1, Ant0).
VMUX control units 22 can set criterion, contrast work at present value and target modulation value.For example, when realization
Passage n luminous power size pn is in the range of Pnt +/- X%, and passage n modulation depth value mn is in Mnt +/- X% models
In enclosing, just stop regulation, otherwise increased or reduced operation.X values can be set as needed, such as be set to 5.
Step 405, VMUX control units are according to wavelength tag signal and target modulation value, and closed loop VMUX parts are issued in adjustment
The control command of each passage, is then return to step 402；Re-execute step 402,403,404；
In this example, the passage n that VMUX control units 22 are sent according to information control unit 24 all the time code word is controlled
Passage luminous intensity.When the luminous power an1 of passage n work at present values code word 1 does not meet expected require, an1 should mutually be subtracted
Small or increase operation；The luminous power an0 of code word 0 does not meet expected when requiring, mutually an0 should be carried out operation is decreased or increased.So
After return to step 402 continue monitor.
Step 406, the wavelength tag signal that VMUX control units are obtained according to step 401, meanwhile, maintain target modulation
Value, control command is sent to closed loop VMUX parts each passages.
In this example, the passage n that VMUX control units 22 are sent according to information control unit 24 all the time code word is controlled
Passage luminous intensity.When the luminous power an1 of passage n work at present values code word 1 meets the expected requirements, an1 is constant；The light of code word 0
When power an0 meets the expected requirements, an0 is constant.Target modulation value is maintained, each passage sends control life to closed loop VMUX parts
Order.
The apparatus and method of wavelength label technology, which are said, to be realized to open loop VMUX of the present invention with reference to Fig. 5
It is bright.
Realize that device includes using open loop VMUX：Information control unit 54, VMUX control units 52, open loop VMUX parts
21。
As in Fig. 2 and Fig. 5, open loop VMUX parts 21 are included：Light intensity equalizer 11, includes high speed VOA；Wave multiplexer 13,
Multiplex is carried out to the photosynthetic ripple of each passage Single wavelength；VMUX component controls interface 14, controls light intensity equalizer 11, also realizes
VMUX and outside communication function.
Need divided ring VMUX parts to be calibrated, with Meter Test open loop VMUX parts under different control commands not
With optical power attenuation amount, control command list is formed.Instrument used can be using oscillograph etc..Control command list can be control
System order and the corresponding relation of optical power attenuation amount.
Described information control unit 54 is used for, and needs the wavelength tag information transmitted to be modulated in each passage, generates
The corresponding wavelength tag signal of each passage.Then, the wavelength tag signal of each passage is sent to VMUX control units 52.
Wherein, wavelength tag information can be by frequency modulation, amplitude modulation, one or more modulation systems generation wavelength tag signals such as phase modulation.
The VMUX control units 52 are used for, and preserve control command list；And, wavelength tag signal is received, according to mesh
Modulation value is marked, control command list is inquired about, meanwhile, according to wavelength tag signal, divided ring VMUX parts export each passage
Control command.Target modulation value can be target optical power attenuation amount, or target modulation depth.
Open loop VMUX parts 21 are used for, and the control command that VMUX control units are sent are received, to the luminous intensity of each passage
It is adjusted.The luminous intensity of each passage can be adjusted by high speed VOA.
Illustrated below, the VMUX of 80 ripple multiplex functions chooses wherein passage n, it is assumed that using ASK (amplitude shift keying method)
Modulation, that is, control passage n luminous intensity with wavelength tag information change, control the luminous power size to be during transmission code word 1
Ant1, it is Ant0 that luminous power size is controlled during transmission code word 0.
As shown in fig. 6, the step of realizing wavelength label technology based on open loop VMUX includes：
Step 601, the control command list of test calibration open loop VMUX parts corresponding modulating depth；
Divided ring VMUX parts 21 are calibrated.Meter Test open loop VMUX 21 differences under different control commands of part
Optical power attenuation amount.VMUX control units 22 are preserved the corresponding relation list of optical power attenuation amount and control command.Instrument
Table can be using equipment such as oscillographs.In this example, the different optical power attenuations first gone out using Meter Test under different control commands
Amount, is calculated, the corresponding optical power attenuation amount of code word 1 and the corresponding optical power attenuation amount of code word 0 further according to different modulating depth gauge
Control command combination.Demarcation list can be defined as, the corresponding pass of modulation depth optical power attenuation order corresponding with code word
Series of tables.
Step 602, information control unit generates the wavelength tag signal of each passage；
Passage n is needed the wavelength tag information transmitted to be converted into wavelength tag signal by information control unit 24, that is,
The binary code stream of 1/0 change, VMUX control units 22 are sent to by code stream.
Step 603, VMUX control units inquire about control command list according to target modulation value, are believed according to wavelength tag
Number, divided ring VMUX parts each passages sends control command.
The receiving channel n of VMUX control units 22 code stream, while inquiring about passage n control command list, obtains code word 1/0
Corresponding control command.Then, according to wavelength tag signal, passage n control command is sent to open loop VMUX parts 21.
One of ordinary skill in the art will appreciate that all or part of step in the above method can be instructed by program
Related hardware is completed, and described program can be stored in computer-readable recording medium, such as read-only storage, disk or CD
Deng.Alternatively, all or part of step of above-described embodiment can also use one or more integrated circuits to realize.Accordingly
Each module/unit in ground, above-described embodiment can be realized in the form of hardware, it would however also be possible to employ the shape of software function module
Formula is realized.The present invention is not restricted to the combination of the hardware and software of any particular form.
Claims (10)
1. a kind of wavelength tag loading method, it is characterised in that including：
Generate the wavelength tag signal of each optical channel；
Control command is generated according to the wavelength tag signal, the control command is sent and gives VMUX parts；
The VMUX parts are according to the control command, and the luminous intensity to each optical channel of the VMUX parts is adjusted；
The wavelength tag signal is the code stream that multiple code words or code word combination are constituted；
Described to generate control command according to the wavelength tag signal, send the control command includes to VMUX parts：
The corresponding control command of each code word or code word combination in the streams of code words of the wavelength tag signal is obtained, by each code word or code
Word combines corresponding control command and is sent to the VMUX parts successively.
2. the method as described in claim 1, it is characterised in that methods described also includes, each code word is determined according to following manner
Or the corresponding control command of code word combination：
When the VMUX parts are closed loop VMUX parts, the luminous power detection information of each optical channel of VMUX parts, root are obtained
The work at present value of each optical channel is obtained according to the luminous power detection information, the work at present value and target modulation value are carried out
Compare, judge whether that meeting modulation requires, if be unsatisfactory for, according to the target modulation value, adjust each code word or code word group
Corresponding control command is closed, is required until meeting the modulation.
3. method as claimed in claim 2, it is characterised in that
The work at present value includes current luminous power and/or current modulation depth, and the target modulation value includes target light work(
Rate and/or target modulation depth.
4. the method as described in claim 1, it is characterised in that methods described also includes, each code word is determined according to following manner
Or the corresponding control command of code word combination：
When the VMUX parts are open loop VMUX parts,
The control command demarcated under different modulating requirement, generates control command list；
According to target modulation value, the control command list is inquired about, each code word or the corresponding control command of code word combination is obtained.
5. method as claimed in claim 4, it is characterised in that
Control command under the demarcation different modulating requirement includes：Demarcate the corresponding control command of different optical power attenuation amounts；
Or, the corresponding control command of different modulating depth；
The target modulation value is target optical power attenuation amount or target modulation depth.
6. a kind of wavelength tag loading device, it is characterised in that including information control unit, VMUX control units and VMUX portions
Part, wherein：
Described information control unit is used for, and generates the wavelength tag signal of each optical channel；
The VMUX control units are used for, and control command is generated according to the wavelength tag signal, send the control command to
The VMUX parts；
The VMUX parts are used for, and according to the control command, the luminous intensity to each optical channel of the VMUX parts is adjusted
Section；
The code stream that the wavelength tag signal of described information control unit generation constitutes for multiple code words or code word combination；
The VMUX control units are to be used for：Obtain each code word or code word combination correspondence in the streams of code words of the wavelength tag signal
Control command, each code word or the corresponding control command of code word combination are sent to the VMUX parts successively.
7. device as claimed in claim 6, it is characterised in that when the VMUX parts are closed loop VMUX parts, described device
Also include：Feedback control unit, wherein：
The VMUX parts are additionally operable to：The luminous power detection information of each optical channel of VMUX parts is obtained, is exported to described anti-
Present control unit；
The feedback control unit is used for：Each optical channel is obtained according to the luminous power detection information of each passage of VMUX parts
Work at present value, is sent to the VMUX control units；
The VMUX control units are additionally operable to：Compare the work at present value and target modulation value, judge whether that meeting modulation wants
Ask, if be unsatisfactory for, according to the target modulation value, adjust each code word or the corresponding control command of code word combination, Zhi Daoman
The foot modulation is required.
8. device as claimed in claim 7, it is characterised in that
The work at present value includes current luminous power and/or current modulation depth, and the target modulation value includes target light work(
Rate and/or target modulation depth.
9. device as claimed in claim 6, it is characterised in that
When the VMUX parts are open loop VMUX parts, the VMUX control units are additionally operable to, and preserve the control of the VMUX parts
The control command under different modulating requirement is included in order table processed, the control command table；And, control command is being sent to institute
State before VMUX parts, according to target modulation value, inquire about the control command list, obtain each code word or the corresponding control of code word combination
System order.
10. device as claimed in claim 9, it is characterised in that
The control command table includes：The corresponding control command of different optical power attenuation amounts；Or, different modulating depth correspondence
Control command；
The target modulation value is target optical power attenuation amount or target modulation depth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210071485.4A CN102624478B (en) | 2012-03-16 | 2012-03-16 | A kind of wavelength tag loading method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210071485.4A CN102624478B (en) | 2012-03-16 | 2012-03-16 | A kind of wavelength tag loading method and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102624478A CN102624478A (en) | 2012-08-01 |
| CN102624478B true CN102624478B (en) | 2017-11-07 |
Family
ID=46564173
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210071485.4A Active CN102624478B (en) | 2012-03-16 | 2012-03-16 | A kind of wavelength tag loading method and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102624478B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108242967B (en) * | 2016-12-26 | 2019-11-01 | 海思光电子有限公司 | A kind of power regulating method and device |
| CN110190904B (en) * | 2019-05-17 | 2021-03-16 | 烽火通信科技股份有限公司 | Method and device for realizing optical modulation signal in WDM PON system |
| CN110505174A (en) * | 2019-08-22 | 2019-11-26 | 北京聚利科技股份有限公司 | Modulation depth regulating device and roadside unit |
| CN111817782B (en) * | 2020-06-24 | 2021-10-12 | 武汉光迅科技股份有限公司 | Calibration method, device, equipment and storage medium |
| CN113037678B (en) * | 2021-02-26 | 2021-11-23 | 江苏科大亨芯半导体技术有限公司 | Method for marking optical fiber wavelength |
| CN117394918A (en) * | 2023-12-12 | 2024-01-12 | 湖南省康普通信技术有限责任公司 | Method for realizing signal processing based on optical module and optical module |
-
2012
- 2012-03-16 CN CN201210071485.4A patent/CN102624478B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN102624478A (en) | 2012-08-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102624478B (en) | A kind of wavelength tag loading method and device | |
| CN103326777B (en) | Optical power monitor, optical power control system and optical power monitoring method | |
| CN104509010B (en) | The method and apparatus established for channel in optical WDM network | |
| KR101412796B1 (en) | Data transmission apparatus and method in wireless visible light optical communication system | |
| US7715710B2 (en) | Method and system for power management in optical networks | |
| CN102904635B (en) | A kind of method that Optical Signal To Noise Ratio detects, system and equipment | |
| US9225456B2 (en) | Post-transient gain control of optical amplifiers | |
| US9912407B2 (en) | Optical relay device, optical communication system, optical relay method, and storage medium | |
| CN102571213B (en) | Device and method for realizing gain control of optical amplifier | |
| CN102611950A (en) | Method and device for controlling modulation depth of wavelength tag signal | |
| CN102594447A (en) | OSNR (Optical Signal to Noise Ratio) monitoring device for wavelength division multiplexing system and method | |
| DE102005060256A1 (en) | Optical data transmission method for wavelength multiplex system, involves providing two transmission channels with different wavelengths, and automatically adjusting transmission parameter of channels based on determined value | |
| JPH0951324A (en) | Wavelength multiplex optical transmitting system | |
| WO2003001706A1 (en) | System and method for measuring power of optical signals carried over a fiber optic link | |
| JP4172547B2 (en) | System and method for supervisory signal modulation scheme using variable optical attenuator | |
| JP4925334B2 (en) | Optical transmission system | |
| EP1376919A3 (en) | Wavelength division multiplexing optical transmission system and method | |
| CN102546517B (en) | A kind of method and device for the information demodulation realized in wavelength label technology | |
| CN101179335B (en) | Regulation device and method of implementing sideband balance in optical transmission system | |
| CN102594442B (en) | A kind of erasing of wavelength tag and renovation process and device | |
| CN108604927A (en) | Band domain identifies circuit, wavelength multiplexing optics sender unit, wavelength multiplexing optics signal sending system and with area recognition method | |
| US8798464B2 (en) | Setting optical power for an optical communications network channel | |
| DE19940818A1 (en) | Method for controlling the performance of individual WDM signals | |
| CN103997370B (en) | The mark and detection method and device of a kind of optical signal | |
| Dahawü et al. | Performance analysis of new multiplexed patten for duty-cycledivision multiplexing over optical communication system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |