CN107359933B - A kind of method and device for realizing system receiver optical signal to noise ratio automatic equalization - Google Patents
A kind of method and device for realizing system receiver optical signal to noise ratio automatic equalization Download PDFInfo
- Publication number
- CN107359933B CN107359933B CN201710466535.1A CN201710466535A CN107359933B CN 107359933 B CN107359933 B CN 107359933B CN 201710466535 A CN201710466535 A CN 201710466535A CN 107359933 B CN107359933 B CN 107359933B
- Authority
- CN
- China
- Prior art keywords
- road
- multiplexing
- attenuator
- demultiplexing
- optical splitter
- 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
Classifications
-
- 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
Landscapes
- 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 devices for realizing system receiver optical signal to noise ratio automatic equalization.The present invention is sent to system transmitting terminal using the difference value OSNRdifi of the signal-to-noise ratio OSNRi of the OSC monitoring road Guang Jiangge signal and the average optical signal to noise ratio OSNRavg of receiving end in receiving end；Each road attenuator of input terminal is adjusted to keep the OSNR of each road business consistent according to the difference value OSNRdifi in transmitting terminal.The present invention may be implemented to realize that the optical signal to noise ratio of system receiving terminal is flat, and system is optimized per business optical property all the way.
Description
Technical field
The present invention relates to a kind of method and devices of optical signal to noise ratio automatic equalization, belong to technical field of photo communication, specifically
It is related to a kind of method and device for realizing system receiver optical signal to noise ratio automatic equalization.
Background technique
In field of power communication, with being gradually increased for portfolio, while the anxiety of cable resource, lead to 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 in use of wavelength division multiplexing.
For wavelength-division multiplex system, wavelength multiplexer and demultiplexer can be all used in transmitting terminal and receiving end 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 difference of wavelength and a series of gain unevenness of image intensifers result in the need for logical in system receiving terminal difference
The optical signal to noise ratio otherness of the business in road is larger, and it is not the main reason of assessment system receiver service feature that optical power is flat,
Optical signal to noise ratio OSNR is only the most direct factor of each announcement service performance quality in most direct evaluation system receiving end.Therefore only
Optical power in receiver adjustment different business channel is it cannot be guaranteed that each channel service performance is attained by optimum state.
By the transmitting terminal of wavelength-division system in practical application and receiving end not in identical computer room, the method currently taken is
Transmitting terminal goes to check the optical signal to noise ratio per business all the way of receiving terminal system by remotely connection, if the light noise of a certain channel
It is bigger than normal than OSNR, then the optical power in the transmitting terminal channel is suitably turned down；If the optical signal to noise ratio OSNR of a certain channel is inclined
It is small, then the optical power in the transmitting terminal channel is suitably tuned up, due to the otherness of region and the complexity of operation, this method
It is complex cumbersome, great inconvenience is brought for engineering opening and maintenance.
Summary of the invention
In view of the above problems, the purpose of the present invention is to provide a kind of system receiver optical signal to noise ratio automatic equalizations realized
Device and method, the invention device can be used for division multiplex fibre-optic communication wave system.
Above-mentioned technical problem of the invention is mainly to be addressed by following technical proposals:
A method of realizing system receiver optical signal to noise ratio automatic equalization, comprising:
Feedback processing step utilizes the signal-to-noise ratio OSNR of the OSC monitoring road Guang Jiangge signal in receiving endiWith putting down for receiving end
Equal optical signal to noise ratio OSNRavgDifference value OSNRdifiIt is sent to system transmitting terminal；
Emit set-up procedure, in transmitting terminal according to the difference value OSNRdifiEach road attenuator of input terminal is adjusted to protect
The OSNR of the road Chi Ge business is consistent.
Optimization, a kind of above-mentioned method for realizing system receiver optical signal to noise ratio automatic equalization, the transmitting adjustment step
In rapid, as the difference value OSNRdifiStop adjusting the attenuator of the road signal when less than 0.5dB.
Optimization, a kind of above-mentioned method for realizing system receiver optical signal to noise ratio automatic equalization, the transmitting adjustment step
In rapid, the adjustable damping value of the multiplexing road the Duan Ge attenuator of transmitting terminal is 0dB-30dB.
A kind of device for realizing system receiver optical signal to noise ratio automatic equalization, comprising:
Feedback processing modules utilize the signal-to-noise ratio OSNR of the OSC monitoring road Guang Jiangge signal in receiving endiWith putting down for receiving end
Equal optical signal to noise ratio OSNRavgDifference value OSNRdifiIt is sent to system transmitting terminal；
Transmitting adjustment module, in transmitting terminal according to the difference value OSNRdifiEach road attenuator of input terminal is adjusted to protect
The OSNR of the road Chi Ge business is consistent.
Optimization, a kind of above-mentioned device for realizing system receiver optical signal to noise ratio automatic equalization, the transmitting adjusts mould
In block, as the difference value OSNRdifiStop adjusting the attenuator of the road signal when less than 0.5dB.
Optimization, a kind of above-mentioned device for realizing system receiver optical signal to noise ratio 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 optical signal to noise ratio automatic equalization, transmitting terminal includes: successively
The multiplexing end road N attenuator, the multiplexing end road N 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 road the N photodetector of the multiplexing end road the N optical splitter；The multiplexing end
The road N attenuator, the multiplexing end road N optical splitter, the multiplexing end road N photodetector, multiplexing end optical splitter are connected with processing unit.
Optimization, a kind of above-mentioned device for realizing system receiver optical signal to noise ratio automatic equalization, receiving end includes:
Sequentially connected demultiplexing end OSC channel-splitting filter, demultiplexing end optical splitter, demultiplexing end channel-splitting filter, demultiplexing end N
Road attenuator, the demultiplexing end road N optical splitter, the demultiplexing end road N photodetector；Wherein, demultiplexing end optical splitter, solution
The multiplexing end road N attenuator, the demultiplexing end road N photodetector are connected with processing unit.
Therefore, the present invention has the advantage that
1, by the OSNR of system receiving terminaldifiInformation by OSC monitor light distinct feed-back to system transmitting terminal, can be automatic
The optical power in each channel is adjusted, the optical signal to noise ratio of the receiving end Lai Shixian is flat, to realize the OSNR performance per business all the way
It optimizes.
2, the direct factor using OSNR as evaluation system receiver, to maximumlly realize equal per business light all the way
Work is in optimum performance state；
3, by receiving end per OSNR information and difference value distinct feed-back pass through OSNR sum-average arithmetic to system transmitting terminal all the way
Difference value adjustment is carried out again, and the OSNR performance of each road business can be made to optimize.
4, multiplexing end can be set by software through the processing unit and demultiplexes the optical attenuator in multiple channels at end
The size of value, it is easy to operate；The processing unit can store the decaying setting value for recording multiple service channels, be same scene application
Reference is provided.
Detailed description of the invention
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 the system construction drawing for realizing that receiver optical power is flat of being decayed by regulation power；
Fig. 3 is the optical power figure of system receiver multichannel business；
Optical signal to noise ratio that Fig. 4 is system receiver multichannel business and minimum OSNR are with reference to figure；
Fig. 5 is the optical signal to noise ratio of system receiver multichannel business and the OSNR that is averaged with reference to figure；
In figure,
1, it is multiplexed the end road N attenuator；2, it is multiplexed the end road N optical splitter；
3, it is multiplexed the end road N photodetector；4, it is multiplexed end wave multiplexer；
5, it is multiplexed end optical splitter；6, it is multiplexed end spectroscopic detector；
7, end optical splitter is demultiplexed；8, end spectroscopic detector is demultiplexed；
9, end channel-splitting filter is demultiplexed；10, processing unit；
11, the end road N attenuator is demultiplexed；12, the end road N optical splitter is demultiplexed；
13, the end road N photodetector is demultiplexed；14, it is multiplexed end OSC wave multiplexer；
15, end OSC channel-splitting filter is demultiplexed；16, it is multiplexed end osc light transmission unit；
17, end osc light receiving unit is demultiplexed；
101, it is multiplexed the input terminal of the end road N attenuator；
102, it is multiplexed the output end of the end road N attenuator；
103, it is multiplexed the control connectivity port of the end road N attenuator and processor；
201, it is multiplexed the input terminal of the end road N optical splitter；
202, it is multiplexed the output end of the end road N optical splitter；
203, it is multiplexed the light splitting end of the end road N optical splitter；
301, it is multiplexed the control connectivity port of the end road N photodetector and processor；
401, it is multiplexed the input terminal of the road the N business of end wave multiplexer；
450, it is multiplexed the output end of end wave multiplexer；
501, it is multiplexed the input terminal of end optical splitter；
502, it is multiplexed the output end of end optical splitter；
503, it is multiplexed the light splitting end of end optical splitter；
601, it is multiplexed the control connectivity port of end photodetector and processor；
701, the input terminal of end optical splitter is demultiplexed；
702, the output end of end optical splitter is demultiplexed；
703, the light splitting end of end optical splitter is demultiplexed；
801, the control connectivity port of end photodetector and processor is demultiplexed；
950, the input terminal of end channel-splitting filter is demultiplexed；
901, the output end of the road the N business of end channel-splitting filter is demultiplexed；
111, the input terminal of the end road N attenuator is demultiplexed；
112, the output end of the end road N attenuator is demultiplexed；
113, the control connectivity port of the end road N attenuator and processor is demultiplexed；
121, the input terminal of the end road N optical splitter is demultiplexed；
122, the output end of the end road N optical splitter is demultiplexed；
123, the light splitting end of the end road N optical splitter is demultiplexed；
131, the control connectivity port of the end road N photodetector and processor is demultiplexed；
14a, the common end for being multiplexed end OSC wave multiplexer；
14b, the service signal end for being multiplexed end OSC wave multiplexer；
14c, the monitoring signal end for being multiplexed end OSC wave multiplexer；
15a, the common end for demultiplexing end OSC wave multiplexer；
15b, the service signal end for demultiplexing end OSC wave multiplexer；
15c, the monitoring signal end for demultiplexing end OSC wave multiplexer.
Specific embodiment
Below with reference to the embodiments and with reference to the accompanying drawing the technical solutions of the present invention will be further described.
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 described herein, specific examples are only used 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 be multiplexed the end road N attenuator (1,
80 tunnel in total), multiplexing the end road N optical splitter (2), multiplexing the end road N 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
Wave device (9), the demultiplexing end road N attenuator (11, in total 80 tunnel), the demultiplexing end road N optical splitter (12), demultiplexing end N
Road photodetector (13) and processing unit (10).
In order to illustrate technical solutions according to the invention, the following is a description of specific embodiments.
Fig. 1 shows the channel multiplexing for realizing power equalization and Deplexing apparatus structure chart, including sequentially connected includes multiple
With the end road N attenuator (1, in total 80 tunnel), the multiplexing end road N optical splitter (2), the multiplexing end road N 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), the demultiplexing end road N attenuator (11, in total 80 tunnel), the light splitting of the demultiplexing end road N
Device (12), the demultiplexing end road N 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
Multiplexing end wave multiplexer and the photodetector for demultiplexing end wave multiplexer are connect with processing unit.
The road N business optical signal enters the input terminal 101 of the multiplexing end road N attenuator, after the attenuator of the road N, leads to
The output end 102 for crossing the multiplexing end road N attenuator enters the input terminal 201 of the multiplexing end road N optical splitter；It is multiplexed the end road N point
The output end 202 of light device is connect with the input terminal 401 of the road the N business of multiplexing end wave multiplexer, point of the multiplexing end road N optical splitter
Light end enters the multiplexing end road N photodetector 3；It is multiplexed the output end 450 of end wave multiplexer and the input terminal 501 of multiplexing end optical splitter
Connection, the light splitting end 503 of multiplexing end optical splitter enter multiplexing end photodetector 6.The light splitting end 703 for demultiplexing end optical splitter enters
Demultiplex end photodetector 8；The output end 702 for demultiplexing end optical splitter is connect with the input terminal 950 of demultiplexing end channel-splitting filter, is solved
The output end 901 for being multiplexed the road the N business of end channel-splitting filter enters the input terminal 111 of the demultiplexing end road N attenuator, demultiplexes end
The output end 112 of the road N attenuator is connect with the input terminal 121 of the demultiplexing end road N optical splitter；Demultiplex the light splitting of the end road N
The light splitting end 123 of device enters the demultiplexing end road N photodetector 13.
It is multiplexed control connectivity port 103, the multiplexing end road N photodetector and the processing of the end road N 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 the demultiplexing end road N attenuator and processor, demultiplexing
The road N photodetector is held to be connected with the control connectivity port 131 of processor respectively at processing unit 10.Divide through the processing unit
The multiplexing end road N attenuator 1, the multiplexing end road N photodetector 3, multiplexing end photodetector 6, demultiplexing end Du Qu and not be controlled
Photodetector 8, the demultiplexing end road N attenuator 11 and the demultiplexing end road N photodetector.
The signal light power and ASE noise that the demultiplexing end photodetector (8) of system receiving terminal passes through 80 road signals of calculating
Optical power obtains the optical signal to noise ratio OSNR of 80 road signalsi, average optical signal to noise ratio is averagely obtained by 80 road signal-to-noise ratio adduction
OSNRavg；Difference value OSNR is obtained per subtract each other with the average value 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 tunnelsdifiIt is monitored by OSC
It is photosynthetic into business light, light is then monitored by OSC and is sent to system transmitting terminal, the OSC monitoring unit of system transmitting terminal receives
The difference value OSNR of the business optical signal on 80 tunnelsdifiThen information adjusts controlling and receiving per attenuator all the way for input terminal
The optical signal to noise ratio per signal light all the way at end, to realize the OSNR consistency of performance per business all the way.As certain OSNR all the wayi
With average optical signal to noise ratio OSNRavgDifference value be less than 0.5dB, no longer need to be adjusted the channel.
Fig. 2 shows the flat system construction drawing of receiver optical power is realized by regulation power decaying, this is traditional
The flat method of receiver is realized in multicast system, is realized not by the pad value per business light all the way of control transmitting terminal
With the different Output optical power of channel service light, finally guarantee that the optical power in different channels guarantees unanimously in receiving end.Such as Fig. 3
Shown, the optical power in each channel in receiving end is different, and the optical power in order to realize receiver is flat, and there are two types of realization sides
Method, one is directly in receiving end, the optical power to different channels is adjusted, by optical power it is big carry out decay to minimum light
Power.Another method is that the pad value of the optical power in the different channels of regulating system transmitting terminal goes to realize the optical power of receiving end
It is flat.Which is only to realize the flatness of the optical power of receiving end, the final performance of system receiver still have compared with
Big difference, that is, the performance difference in different channels are larger, lead to the preferable state of portion of channel work, portion of channel work
Make in bad state, once route changes, error code very likely occurs in the poor channel of performance.
Optical signal to noise ratio that Fig. 4 shows system receiver multichannel business and minimum OSNR are with reference to figure；Existing routine is done
Method is to go realization to be consistent with the low channel OSNR by increasing noise in the channel of high OSNR in system receiving terminal, which leads
Causing all properties, the performance as worst channel is all down in the channel all better than the worst channel OSNR, although OSNR holding is compared
Good flatness, but sacrifice the performance indicator in most of channel.
Fig. 5 shows the optical signal to noise ratio of system receiver multichannel business and the OSNR that is averaged is with reference to figure；By by it is all
The OSNR in line service channel carries out summation draw and obtains average optical signal to noise ratio OSNRavg；Then each access and the average value carry out
Subtract each other and obtains 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 channel of transmitting terminal
Depreciation goes to realize all channels in receiving end toward average optical signal to noise ratio OSNRavgIt draws close；Rather than all channels are past as Fig. 4
Worst OSNR is drawn close.And the mesh that automatic OSNR equilibrium may be implemented is adjusted in which receiving end 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 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 (8)
1. a kind of method for realizing system receiver optical signal to noise ratio automatic equalization characterized by comprising
Feedback processing step utilizes the signal-to-noise ratio OSNR of the OSC monitoring road Guang Jiangge signal in receiving endiWith the average light of receiving end
Signal-to-noise ratio OSNRavgDifference value OSNRdifiIt is sent to system transmitting terminal；
Emit set-up procedure, in transmitting terminal according to the difference value OSNRdifiEach road attenuator of input terminal is adjusted to keep each road
The OSNR of business is consistent；
The input terminal (101) that the road N business optical signal enters the multiplexing end road N attenuator passes through after the attenuator of the road N
The output end (102) for being multiplexed the end road N attenuator enters the input terminal (201) of the multiplexing end road N optical splitter；It is multiplexed the end road N
The output end (202) of optical splitter is connect with the input terminal (401) of the road the N business of multiplexing end wave multiplexer, the light splitting of the multiplexing end road N
The light splitting end of device enters the multiplexing end road N photodetector (3)；It is multiplexed the output end (450) and multiplexing end optical splitter of end wave multiplexer
Input terminal (501) connection, multiplexing end optical splitter light splitting end (503) enter multiplexing end photodetector (6)；Demultiplex end light splitting
The light splitting end (703) of device enters demultiplexing end photodetector 8；Demultiplex output end (702) and the demultiplexing end point of end optical splitter
The input terminal (950) of wave device connects, and the output end (901) for demultiplexing the road the N business of end channel-splitting filter enters the demultiplexing end road N
The input terminal (111) of attenuator, demultiplex the end road N attenuator output end (112) with demultiplex the end road N optical splitter it is defeated
Enter end (121) connection；The light splitting end (123) for demultiplexing the end road N optical splitter enters the demultiplexing end road N photodetector (13).
2. a kind of method for realizing system receiver optical signal to noise ratio automatic equalization according to claim 1, which is characterized in that
In the transmitting set-up procedure, as the difference value OSNRdifiStop adjusting the attenuator of the road signal when less than 0.5dB.
3. a kind of method for realizing system receiver optical signal to noise ratio automatic equalization according to claim 1, which is characterized in that
The adjustable damping value of the multiplexing road the Duan Ge attenuator of transmitting terminal is 0dB-30dB.
4. a kind of device for realizing system receiver optical signal to noise ratio automatic equalization characterized by comprising
Feedback processing modules utilize the signal-to-noise ratio OSNR of the OSC monitoring road Guang Jiangge signal in receiving endiWith the average light of receiving end
Signal-to-noise ratio OSNRavgDifference value OSNRdifiIt is sent to system transmitting terminal；
Transmitting adjustment module, in transmitting terminal according to the difference value OSNRdifiEach road attenuator of input terminal is adjusted to keep each road
The OSNR of business is consistent；
Wherein, the road N business optical signal enters the input terminal (101) of the multiplexing end road N attenuator, after the attenuator of the road N,
Output end (102) by being multiplexed the end road N attenuator enters the input terminal (201) of the multiplexing end road N optical splitter；It is multiplexed end the
The output end (202) of the road N optical splitter is connect with the input terminal (401) of the road the N business of multiplexing end wave multiplexer, is multiplexed the end road N
The light splitting end of optical splitter enters the multiplexing end road N photodetector (3)；It is multiplexed output end (450) and the multiplexing end point of end wave multiplexer
The input terminal (501) of light device connects, and the light splitting end (503) of multiplexing end optical splitter enters multiplexing end photodetector (6)；Demultiplex end
The light splitting end (703) of optical splitter enters demultiplexing end photodetector 8；Demultiplex the output end (702) and demultiplexing of end optical splitter
Input terminal (950) connection for holding channel-splitting filter, the output end (901) for demultiplexing the road the N business of end channel-splitting filter enter demultiplexing end
The input terminal (111) of the road N attenuator demultiplexes output end (112) and the light splitting of the demultiplexing end road N of the end road N attenuator
The input terminal (121) of device connects；The light splitting end (123) for demultiplexing the end road N optical splitter enters the demultiplexing end road N photodetector
(13)。
5. a kind of device for realizing system receiver optical signal to noise ratio automatic equalization according to claim 4, which is characterized in that
In the transmitting adjustment module, as the difference value OSNRdifiStop adjusting the attenuator of the road signal when less than 0.5dB.
6. a kind of device for realizing system receiver optical signal to noise ratio automatic equalization according to claim 4, which is characterized in that
The adjustable damping value of the multiplexing road the Duan Ge attenuator of transmitting terminal is 0dB-30dB.
7. a kind of device for realizing system receiver optical signal to noise ratio automatic equalization according to claim 4, which is characterized in that
Transmitting terminal includes: the sequentially connected multiplexing end road N attenuator (1), the multiplexing end road N optical splitter (2), multiplexing end wave multiplexer
(4), end optical splitter (5), multiplexing end OSC channel-splitting filter (14) are multiplexed；Wherein, the light splitting end of the multiplexing end road N optical splitter (2)
The connection multiplexing end road N photodetector (3)；The multiplexing end road the N attenuator (1), the multiplexing end road N optical splitter (2), multiplexing
The road N photodetector (3), multiplexing end optical splitter (5) is held to be connected with processing unit.
8. a kind of device for realizing system receiver optical signal to noise ratio automatic equalization according to claim 4, which is characterized in that
Receiving end includes:
Sequentially connected demultiplexing end OSC channel-splitting filter (15), demultiplexing end channel-splitting filter (9), demultiplexes demultiplexing end optical splitter (7)
With the end road N attenuator (11), the demultiplexing end road N optical splitter (12), the demultiplexing end road N photodetector (13)；Wherein, institute
It is single to state demultiplexing end optical splitter (7), the demultiplexing end road N attenuator (11), the demultiplexing end road N photodetector (13) and processing
Member is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710466535.1A CN107359933B (en) | 2017-06-20 | 2017-06-20 | A kind of method and device for realizing system receiver optical signal to noise ratio automatic equalization |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710466535.1A CN107359933B (en) | 2017-06-20 | 2017-06-20 | A kind of method and device for realizing system receiver optical signal to noise ratio automatic equalization |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107359933A CN107359933A (en) | 2017-11-17 |
| CN107359933B true CN107359933B (en) | 2019-09-10 |
Family
ID=60272262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710466535.1A Active CN107359933B (en) | 2017-06-20 | 2017-06-20 | A kind of method and device for realizing system receiver optical signal to noise ratio automatic equalization |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107359933B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113810104A (en) * | 2020-06-15 | 2021-12-17 | 中兴通讯股份有限公司 | Optical signal processing method, control unit, light emitting unit and storage medium |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5225922A (en) * | 1991-11-21 | 1993-07-06 | At&T Bell Laboratories | Optical transmission system equalizer |
| 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 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10112805B4 (en) * | 2001-03-16 | 2006-11-30 | Siemens Ag | Optical transmission system with improved signal-to-noise behavior |
-
2017
- 2017-06-20 CN CN201710466535.1A patent/CN107359933B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5225922A (en) * | 1991-11-21 | 1993-07-06 | At&T Bell Laboratories | Optical transmission system equalizer |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107359933A (en) | 2017-11-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR102148554B1 (en) | Equalization method and device for optical power | |
| US7515829B2 (en) | Wavelength division multiplexing optical transmission system | |
| JP3821920B2 (en) | Optical communication system | |
| JPH08256115A (en) | Optical fiber network system | |
| WO2015154389A1 (en) | Optical transceiving module and configuration method and device for operating parameter thereof | |
| US20170272197A1 (en) | Extender For Optical Access Communication Network | |
| CN111355554A (en) | Route multiplexer, route multiplexing method, wavelength division routing method and network system | |
| CA2282607A1 (en) | Method for providing a bidirectional optical supervisory channel | |
| EP2458762A1 (en) | Underwater branching unit of optical add/drop multiplexer, corresponding optical transmission method and system thereof | |
| JP2007053614A (en) | Optical transmission device equipped with pluggable variable light attenuator | |
| KR20220065471A (en) | Optical power control method for Optical communication module | |
| CN104009801B (en) | The optical signal processing method of a kind of optical-fiber network and device | |
| EP1762029B1 (en) | Wavelength division multiplex (wdm) optical demultiplexer | |
| CN107359933B (en) | A kind of method and device for realizing system receiver optical signal to noise ratio automatic equalization | |
| CN1212713C (en) | Dynamic gain balancing method and optical transmission system therewith | |
| CN103227681B (en) | Wave division multiplexing optical transmission system passage dynamic optical power regulating method | |
| US7756419B2 (en) | Traffic signal node cross scheduling method and system | |
| JP2020053858A (en) | Transmission system, transmission device, and transmission method | |
| KR100281412B1 (en) | Multichannel Optical Transmitter and Add / Drop Multiplexer with Dynamic Gain Control | |
| KR100328128B1 (en) | Dynamic Gain Control of Booster Amplifier in WDM Transmission Systems | |
| CN114157390B (en) | Optical power self-adaptive dense wavelength division multiplexing relay system | |
| US20210242956A1 (en) | Apparatus and adding and dropping method | |
| JPH04248727A (en) | Transmission output level control circuit | |
| US20240137142A1 (en) | Monitior window in ase injection seed | |
| JP6931367B2 (en) | An optical communication system, an equalizer of the optical communication system, a connecting device and a receiving device, and a determination device, a determination method and a program of the amount of attenuation given by the equalization device. |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |