CN107359933A - A kind of method and device for realizing system receiver OSNR automatic equalization - Google Patents

A kind of method and device for realizing system receiver OSNR automatic equalization Download PDF

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Publication number
CN107359933A
CN107359933A CN201710466535.1A CN201710466535A CN107359933A CN 107359933 A CN107359933 A CN 107359933A CN 201710466535 A CN201710466535 A CN 201710466535A CN 107359933 A CN107359933 A CN 107359933A
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China
Prior art keywords
osnr
roads
multiplexing
attenuator
optical splitter
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CN201710466535.1A
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CN107359933B (en
Inventor
熊伟
徐健
夏晓文
秦宇
陈元
刘朝霞
高旭
彭虹
於俊成
邱俊祥
王琴
熊智慧
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Accelink Technologies Co Ltd
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Accelink Technologies Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
    • H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
    • H04B10/079—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using measurements of the data signal
    • H04B10/0795—Performance monitoring; Measurement of transmission parameters
    • H04B10/07953—Monitoring or measuring OSNR, BER or Q
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
    • H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
    • H04B10/077—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using a supervisory or additional signal
    • H04B10/0775—Performance monitoring and measurement of transmission parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/50—Transmitters
    • H04B10/564—Power control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0221—Power control, e.g. to keep the total optical power constant

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Optical Communication System (AREA)

Abstract

The present invention relates to a kind of method and device for realizing system receiver OSNR automatic equalization.The present invention utilizes the signal to noise ratio OSNRi of OSC monitoring Guang Jiangge roads signal and the average OSNR OSNRavg of receiving terminal difference value OSNRdifi to send to system transmitting terminal in receiving terminal；Each road attenuator of input is adjusted to keep the OSNR of each road business consistent according to the difference value OSNRdifi in transmitting terminal.The present invention can realize that the OSNR of system receiving terminal is flat, and system optimizes per business optical property all the way.

Description

A kind of method and device for realizing system receiver OSNR automatic equalization
Technical field
The present invention relates to a kind of method and device of OSNR automatic equalization, belong to technical field of photo communication, be specifically It is related to a kind of method and device for realizing system receiver OSNR automatic equalization.
Background technology
In field of power communication, with the gradual increase of portfolio, while the anxiety of cable resource, cause wavelength-division multiplex skill Art obtains the popularization and application of rapid, high volume.The transmission capacity of simple optical fiber can be provided significantly using wavelength-division multiplex technique.
For wavelength-division multiplex system, wavelength multiplexer and demultiplexer can be all used in transmitting terminal and receiving terminal at present, and Based on passive wavelength division multiplexer.When multiple wavelength transmit in fibre circuit, due to the power transfer effect of itself, difference The attenuation coefficient of wavelength is different and a series of gain unevenness of image intensifers, results in the need for different logical in system receiving terminal The OSNR otherness of the business in road is larger, and it is not the main reason of assessment system receiver service feature that luminous power is flat, OSNR OSNR is only the most direct factor of each announcement service performance quality of most direct evaluation system receiving terminal.Therefore only It is it cannot be guaranteed that each channel service performance is attained by optimum state in the luminous power of receiver adjustment different business passage.
The transmitting terminal of wavelength-division system and receiving terminal are not in identical computer room, the method currently taken during due to practical application Transmitting terminal checks the OSNR per business all the way of receiving terminal system by remotely connecting, if the light noise of a certain channel It is bigger than normal than OSNR, then the luminous power of the transmitting terminal passage is suitably turned down；If the OSNR OSNR of a certain channel is inclined It is small, then the luminous power of the transmitting terminal passage is suitably tuned up, due to the otherness of region and the complexity of operation, this method It is complex cumbersome, bring great inconvenience for engineering opening and maintenance.
The content of the invention
In view of the above problems, it is an object of the invention to provide a kind of system receiver OSNR automatic equalization realized Apparatus and method, the invention device can be used for division multiplex fibre-optic communication wave system.
The above-mentioned technical problem of the present invention is mainly what is be addressed by following technical proposals：
A kind of method for realizing system receiver OSNR automatic equalization, including：
Feedback processing step, the signal to noise ratio OSNR in receiving terminal using OSC monitoring Guang Jiangge roads signaliWith putting down for receiving terminal Equal OSNR OSNRavgDifference value OSNRdifiSend to system transmitting terminal；
Launch set-up procedure, in transmitting terminal according to the difference value OSNRdifiEach road attenuator of input is adjusted to protect The OSNR of Chi Ge roads business is consistent.
Optimization, a kind of above-mentioned method for realizing system receiver OSNR automatic equalization, the transmitting adjustment step In rapid, as the difference value OSNRdifiStop adjusting the attenuator of the road signal during less than 0.5dB.
Optimization, a kind of above-mentioned method for realizing system receiver OSNR automatic equalization, the transmitting adjustment step In rapid, the adjustable damping value of the multiplexing Duan Ge roads attenuator of transmitting terminal is 0dB-30dB.
A kind of device for realizing system receiver OSNR automatic equalization, including：
Feedback processing modules, the signal to noise ratio OSNR in receiving terminal using OSC monitoring Guang Jiangge roads signaliWith putting down for receiving terminal Equal OSNR OSNRavgDifference value OSNRdifiSend to system transmitting terminal；
Launch adjusting module, in transmitting terminal according to the difference value OSNRdifiEach road attenuator of input is adjusted to protect The OSNR of Chi Ge roads business is consistent.
Optimization, a kind of above-mentioned device for realizing system receiver OSNR automatic equalization, the transmitting adjustment mould In block, as the difference value OSNRdifiStop adjusting the attenuator of the road signal during less than 0.5dB.
Optimization, a kind of above-mentioned device for realizing system receiver OSNR automatic equalization, the multiplexing end of transmitting terminal The adjustable damping value of each road attenuator is 0dB-30dB.
Optimization, a kind of above-mentioned device for realizing system receiver OSNR automatic equalization, transmitting terminal includes：Successively Multiplexing end N roads attenuator, multiplexing end N roads optical splitter, multiplexing end wave multiplexer, multiplexing end optical splitter, the multiplexing end OSC of connection Channel-splitting filter；Wherein, the light splitting end connection multiplexing end N roads photodetector of the multiplexing end N roads optical splitter；The multiplexing end the N roads attenuator, multiplexing end N roads optical splitter, multiplexing end N roads photodetector, multiplexing end optical splitter are connected with processing unit.
Optimization, a kind of above-mentioned device for realizing system receiver OSNR automatic equalization, receiving terminal includes：
Demultiplexing end OSC channel-splitting filters, demultiplexing end optical splitter, demultiplexing end channel-splitting filter, the demultiplexing end N being sequentially connected Road attenuator, demultiplexing end N roads optical splitter, demultiplexing end N roads photodetector；Wherein, the demultiplexing end optical splitter, solution Multiplexing end N roads attenuator, demultiplexing end N roads photodetector are connected with processing unit.
Therefore, the invention has the advantages that：
1st, by the OSNR of system receiving terminaldifiInformation monitors light distinct feed-back to system transmitting terminal by OSC, can be automatic The luminous power of each passage is adjusted, to realize that the OSNR of receiving terminal is flat, so as to realize the OSNR performances per business all the way Optimize.
2nd, it is equal per business light all the way so as to maximumlly realize using direct factors of the OSNR as evaluation system receiver It is operated in optimum performance state；
3rd, by receiving terminal per OSNR information and difference value distinct feed-back to system transmitting terminal, pass through OSNR sum-average arithmetics all the way Difference value adjustment is carried out again, and the OSNR performances per business all the way can be caused to optimize.
4th, end can be multiplexed by the software design patterns by processing unit and demultiplexes the optical attenuator of multiple passages at end The size of value, it is easy to operate；The decay arranges value of the multiple service channels of processing unit energy stored record, it is same scene application Reference is provided.
Brief description of the drawings
Fig. 1 is that the present invention realizes the channel multiplexing of power equalization and the system construction drawing of Deplexing apparatus；
Fig. 2 is to realize the flat system construction drawing of receiver luminous power by adjusting power attenuation；
Fig. 3 is the luminous power figure of system receiver multichannel business；
Fig. 4 is the OSNR of system receiver multichannel business and minimum OSNR reference charts；
Fig. 5 is the OSNR of system receiver multichannel business and average OSNR reference charts；
In figure,
1st, it is multiplexed end N roads attenuator；2nd, it is multiplexed end N roads optical splitter；
3rd, it is multiplexed end N roads photodetector；4th, it is multiplexed end wave multiplexer；
5th, it is multiplexed end optical splitter；6th, it is multiplexed end spectroscopic detector；
7th, end optical splitter is demultiplexed；8th, end spectroscopic detector is demultiplexed；
9th, end channel-splitting filter is demultiplexed；10th, processing unit；
11st, end N roads attenuator is demultiplexed；12nd, end N roads optical splitter is demultiplexed；
13rd, end N roads photodetector is demultiplexed；14th, end OSC wave multiplexers are multiplexed；
15th, end OSC channel-splitting filters are demultiplexed；16th, it is multiplexed end osc light transmitting element；
17th, end osc light receiving unit is demultiplexed；
101st, it is multiplexed the input of end N roads attenuator；
102nd, it is multiplexed the output end of end N roads attenuator；
103rd, it is multiplexed the control connectivity port of end N roads attenuator and processor；
201st, it is multiplexed the input of end N roads optical splitter；
202nd, it is multiplexed the output end of end N roads optical splitter；
203rd, it is multiplexed the light splitting end of end N roads optical splitter；
301st, it is multiplexed the control connectivity port of end N roads photodetector and processor；
401st, it is multiplexed the input of the N roads business of end wave multiplexer；
450th, it is multiplexed the output end of end wave multiplexer；
501st, it is multiplexed the input of end optical splitter；
502nd, it is multiplexed the output end of end optical splitter；
503rd, it is multiplexed the light splitting end of end optical splitter；
601st, it is multiplexed the control connectivity port of end photodetector and processor；
701st, the input of end optical splitter is demultiplexed；
702nd, the output end of end optical splitter is demultiplexed；
703rd, the light splitting end of end optical splitter is demultiplexed；
801st, the control connectivity port of end photodetector and processor is demultiplexed；
950th, the input of end channel-splitting filter is demultiplexed；
901st, the output end of the N roads business of end channel-splitting filter is demultiplexed；
111st, the input of end N roads attenuator is demultiplexed；
112nd, the output end of end N roads attenuator is demultiplexed；
113rd, the control connectivity port of end N roads attenuator and processor is demultiplexed；
121st, the input of end N roads optical splitter is demultiplexed；
122nd, the output end of end N roads optical splitter is demultiplexed；
123rd, the light splitting end of end N roads optical splitter is demultiplexed；
131st, the control connectivity port of end N roads photodetector and processor is demultiplexed；
14a, the common port for being multiplexed end OSC wave multiplexers；
14b, the service signal end for being multiplexed end OSC wave multiplexers；
14c, the monitoring signal end for being multiplexed end OSC wave multiplexers；
15a, the common port for demultiplexing end OSC wave multiplexers；
15b, the service signal end for demultiplexing end OSC wave multiplexers；
15c, the monitoring signal end for demultiplexing end OSC wave multiplexers.
Embodiment
Below by embodiment, and with reference to accompanying drawing, technical scheme is described in further detail.
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only to explain the present invention, not For limiting the present invention.
A kind of channel multiplexing for realizing power equalization of the present invention and Deplexing apparatus include multiplexing end N roads attenuator (1, 80 tunnel altogether), multiplexing end N roads optical splitter (2), multiplexing end N roads photodetector (3), multiplexing end wave multiplexer (4), multiplexing end Optical splitter (5), multiplexing end photodetector (6), demultiplexing end optical splitter (7), demultiplexing end photodetector (8), demultiplexing end point Ripple device (9), demultiplexing end N roads attenuator (11, altogether 80 tunnel), demultiplexing end N roads optical splitter (12), demultiplexing end N Road photodetector (13), and processing unit (10).
In order to illustrate technical solutions according to the invention, illustrated below by specific embodiment.
Fig. 1 shows to realize channel multiplexing and the Deplexing apparatus structure chart of power equalization, including including of being sequentially connected with is multiple With end N roads attenuator (1, altogether 80 tunnel), multiplexing end N roads optical splitter (2), multiplexing end N roads photodetector (3), multiplexing Hold wave multiplexer (4), multiplexing end optical splitter (5), multiplexing end photodetector (6), demultiplexing end optical splitter (7), demultiplexing end light inspection Survey device (8), demultiplexing end channel-splitting filter (9), demultiplexing end N roads attenuator (11, altogether 80 tunnel), the light splitting of demultiplexing end N roads Device (12), demultiplexing end N roads photodetector (13), and processing unit (10).80 service channels at multiplexing end lead to respectively Overdamping device and optical splitter enter multiplexing end wave multiplexer；The business light at demultiplexing end respectively enters attenuator after demultiplexer And optical splitter.Be multiplexed end per all the way attenuator and photodetector, demultiplexing end per all the way attenuator and photodetector and The photodetector of multiplexing end wave multiplexer and demultiplexing end wave multiplexer is connected with processing unit.
N roads business optical signal enters the input 101 of multiplexing end N roads attenuator, after the attenuator of N roads, leads to The output end 102 for crossing multiplexing end N roads attenuator enters the input 201 of multiplexing end N roads optical splitter；It is multiplexed end N roads point The input 401 of N road business of the output end 202 of light device with being multiplexed end wave multiplexer is connected, point of multiplexing end N roads optical splitter Light end enters multiplexing end N roads photodetector 3；It is multiplexed the output end 450 and the input 501 of multiplexing end optical splitter of end wave multiplexer Connection, the light splitting end 503 of multiplexing end optical splitter enter multiplexing end photodetector 6.The light splitting end 703 of demultiplexing end optical splitter enters Demultiplex end photodetector 8；The output end 702 for demultiplexing end optical splitter is connected with demultiplexing the input 950 of end channel-splitting filter, is solved The output end 901 for being multiplexed the N roads business of end channel-splitting filter enters the input 111 of demultiplexing end N roads attenuator, demultiplexes end The output end 112 of N roads attenuator is connected with demultiplexing the input 121 of end N roads optical splitter；Demultiplex the light splitting of end N roads The light splitting end 123 of device enters demultiplexing end N roads photodetector 13.
It is multiplexed control connectivity port 103, multiplexing end N roads photodetector and the processing of end N roads attenuator and processor The control connectivity port 301 of device, the control connectivity port 601 of multiplexing end photodetector and processor, demultiplexing end photodetector With the control connectivity port 801 of processor, the control connectivity port 113 of demultiplexing end N roads attenuator and processor, demultiplexing N roads photodetector is held to be connected with the control connectivity port 131 of processor respectively at processing unit 10.Pass through processing unit point Multiplexing end N roads attenuator 1, multiplexing end N roads photodetector 3, multiplexing end photodetector 6, demultiplexing end and Du Qu not be controlled Photodetector 8, demultiplexing end N roads attenuator 11 and demultiplexing end N roads photodetector.
The signal light power and ASE noises that the demultiplexing end photodetector (8) of system receiving terminal passes through 80 road signals of calculating Luminous power draws the OSNR OSNR of 80 road signalsi, added by 80 road signal to noise ratio and averagely draw average OSNR OSNRavg；Difference value OSNR is drawn per with the average value subtract each other all the waydifi。
Wherein OSNRavg=(OSNR1+OSNR2…OSNRn)/n
OSNRdifi=OSNRi-OSNRavg
The spectroscopic detection unit of system receiving terminal is by the difference value OSNR of the business optical signal on 80 tunnelsdifiMonitored by OSC It is photosynthetic enter business light in, light is then monitored by OSC and sent to system transmitting terminal, the OSC monitoring units of system transmitting terminal receive The difference value OSNR of the business optical signal on 80 tunnelsdifiInformation, then adjust being received per attenuator all the way to control for input The OSNR per flashlight all the way at end, so as to realize the OSNR consistency of performance per business all the way.As certain OSNR all the wayi With average OSNR OSNRavgDifference value be less than 0.5dB, without being adjusted again to the passage.
Fig. 2 is shown realizes the flat system construction drawing of receiver luminous power by adjusting power attenuation, and this is traditional The flat method of receiver is realized in multicast system, is realized not by controlling the pad value per business light all the way of transmitting terminal With the different Output optical power of channel service light, it is consistent finally to ensure that the luminous power of different passages ensures in receiving terminal.Such as Fig. 3 Shown, the luminous power of each passage of receiving terminal is different, in order to realize that the luminous power of receiver is flat, there is two kinds of realization sides Method, a kind of is that directly the luminous power of different passages is adjusted in receiving terminal, and luminous power carrying out greatly is decayed into minimum light Power.Another method is that the pad value of the luminous power of the different passages of regulating system transmitting terminal goes to realize the luminous power of receiving terminal It is flat.Which is only the flatness for the luminous power for realizing receiving terminal, the final performance of system receiver still have compared with Big difference, that is, the poor performance opposite sex of different passages are larger, cause the preferable state of portion of channel work, portion of channel work Make in bad state, once circuit changes, error code very likely occurs in the passage of poor-performing.
Fig. 4 shows the OSNR of system receiver multichannel business and minimum OSNR reference charts；Existing routine is done Method is to go realization to be consistent with low OSNR passages by increasing noise in high OSNR passage in system receiving terminal, and the way is led The performance that the passage for causing all properties all better than worst OSNR passages is all down to as worst passage, although OSNR keeps comparing Good flatness, but sacrifice the performance indications of most of passage.
Fig. 5 shows the OSNR of system receiver multichannel business and average OSNR reference charts；By by it is all The OSNR of line service passage carries out summation draw and draws average OSNR OSNRavg；Then each path is carried out with the average value Subtract each other and draw difference value OSNRdifi。
Wherein OSNRavg=(OSNR1+OSNR2…OSNRn)/n
OSNRdifi=OSNRi-OSNRavg
This method is to draw close optimum channel and worst channel toward intermediate channels, by adjusting declining for each passage of transmitting terminal Depreciation goes to realize all passages of receiving terminal toward average OSNR OSNRavgDraw close；Rather than all channels are past as Fig. 4 Worst OSNR is drawn close.And the mesh that can realize that automatic OSNR is balanced is adjusted in which receiving terminal distinct feed-back to transmitting terminal 's.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention All any modification, equivalent and improvement made within refreshing and principle etc., should be included in the scope of the protection.

Claims (8)

  1. A kind of 1. method for realizing system receiver OSNR automatic equalization, it is characterised in that including：
    Feedback processing step, the signal to noise ratio OSNR in receiving terminal using OSC monitoring Guang Jiangge roads signaliWith the average light of receiving terminal Signal to noise ratio OSNRavgDifference value OSNRdifiSend to system transmitting terminal；
    Launch set-up procedure, in transmitting terminal according to the difference value OSNRdifiEach road attenuator of input is adjusted to keep each road The OSNR of business is consistent.
  2. A kind of 2. method for realizing system receiver OSNR automatic equalization according to claim 1, it is characterised in that In the transmitting set-up procedure, as the difference value OSNRdifiStop adjusting the attenuator of the road signal during less than 0.5dB.
  3. A kind of 3. method for realizing system receiver OSNR automatic equalization according to claim 1, it is characterised in that The adjustable damping value of the multiplexing Duan Ge roads attenuator of transmitting terminal is 0dB-30dB.
  4. A kind of 4. device for realizing system receiver OSNR automatic equalization, it is characterised in that including：
    Feedback processing modules, the signal to noise ratio OSNR in receiving terminal using OSC monitoring Guang Jiangge roads signaliWith the average light of receiving terminal Signal to noise ratio OSNRavgDifference value OSNRdifiSend to system transmitting terminal；
    Launch adjusting module, in transmitting terminal according to the difference value OSNRdifiEach road attenuator of input is adjusted to keep each road The OSNR of business is consistent.
  5. A kind of 5. device for realizing system receiver OSNR automatic equalization according to claim 4, it is characterised in that In the transmitting adjusting module, as the difference value OSNRdifiStop adjusting the attenuator of the road signal during less than 0.5dB.
  6. A kind of 6. device for realizing system receiver OSNR automatic equalization according to claim 4, it is characterised in that The adjustable damping value of the multiplexing Duan Ge roads attenuator of transmitting terminal is 0dB-30dB.
  7. A kind of 7. device for realizing system receiver OSNR automatic equalization according to claim 4, it is characterised in that Transmitting terminal includes：Multiplexing end N roads attenuator (1), multiplexing end N roads optical splitter (2), the multiplexing end wave multiplexer being sequentially connected (4) end optical splitter (5), multiplexing end OSC channel-splitting filters (14), are multiplexed；Wherein, the light splitting end of the multiplexing end N roads optical splitter (2) Connection multiplexing end N roads photodetector (3)；The multiplexing end N roads attenuator (1), multiplexing end N roads optical splitter (2), multiplexing N roads photodetector (3), multiplexing end optical splitter (5) is held to be connected with processing unit.
  8. A kind of 8. device for realizing system receiver OSNR automatic equalization according to claim 4, it is characterised in that Receiving terminal includes：
    The demultiplexing end OSC channel-splitting filters (15) that are sequentially connected, demultiplexing end optical splitter (7), demultiplexing end channel-splitting filter (9), demultiplex With end N road attenuators (11), demultiplexing end N roads optical splitter (12), demultiplexing end N roads photodetector (13)；Wherein, institute It is single to state demultiplexing end optical splitter (7), demultiplexing end N roads attenuator (11), demultiplexing end N roads photodetector (13) and processing Member is connected.
CN201710466535.1A 2017-06-20 2017-06-20 A kind of method and device for realizing system receiver optical signal to noise ratio automatic equalization Active CN107359933B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021254281A1 (en) * 2020-06-15 2021-12-23 中兴通讯股份有限公司 Optical signal processing method, control unit, optical transmission unit and storage medium

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5225922A (en) * 1991-11-21 1993-07-06 At&T Bell Laboratories Optical transmission system equalizer
US20020154356A1 (en) * 2001-03-16 2002-10-24 Peter Krummrich Optical transmission system with an improved signal-to-noise ratio
CN1578205A (en) * 2003-07-29 2005-02-09 中兴通讯股份有限公司 Method for optimizing receiving optical signal noise ratio in optical fibre transmission system
CN1627670A (en) * 2003-12-09 2005-06-15 华为技术有限公司 Wavelength division multiplex optical transmission system, and transmission method
CN101662326A (en) * 2008-08-28 2010-03-03 华为技术有限公司 Method and device for electrical equalization processing of optical signals and optical fiber communication system
CN102904635A (en) * 2012-10-25 2013-01-30 中兴通讯股份有限公司 Optical signal to noise ratio (OSNR) detecting method, system and equipment

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5225922A (en) * 1991-11-21 1993-07-06 At&T Bell Laboratories Optical transmission system equalizer
US20020154356A1 (en) * 2001-03-16 2002-10-24 Peter Krummrich Optical transmission system with an improved signal-to-noise ratio
CN1578205A (en) * 2003-07-29 2005-02-09 中兴通讯股份有限公司 Method for optimizing receiving optical signal noise ratio in optical fibre transmission system
CN1627670A (en) * 2003-12-09 2005-06-15 华为技术有限公司 Wavelength division multiplex optical transmission system, and transmission method
CN101662326A (en) * 2008-08-28 2010-03-03 华为技术有限公司 Method and device for electrical equalization processing of optical signals and optical fiber communication system
CN102904635A (en) * 2012-10-25 2013-01-30 中兴通讯股份有限公司 Optical signal to noise ratio (OSNR) detecting method, system and equipment

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021254281A1 (en) * 2020-06-15 2021-12-23 中兴通讯股份有限公司 Optical signal processing method, control unit, optical transmission unit and storage medium
US11876563B2 (en) 2020-06-15 2024-01-16 Zte Corporation Optical signal processing method, control unit, optical transmission unit and storage medium

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