CN203014816U - Optical path monitoring N*M matrix optical switch system - Google Patents
Optical path monitoring N*M matrix optical switch system Download PDFInfo
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- CN203014816U CN203014816U CN 201220736476 CN201220736476U CN203014816U CN 203014816 U CN203014816 U CN 203014816U CN 201220736476 CN201220736476 CN 201220736476 CN 201220736476 U CN201220736476 U CN 201220736476U CN 203014816 U CN203014816 U CN 203014816U
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Abstract
The utility model discloses an optical path monitoring N*M matrix optical switch system. N optical multiplexers of an N-path optical multiplexing device are respectively provided with a communication optical signal input end and a monitoring light input end. M optical demultiplexers of an M-path optical demultiplexing device are respectively provided with a monitoring light output end and a communication optical signal output end. N selecting ports of a 1*N emission optical switch are respectively correspondingly connected to the N monitoring light input ends of the N-path optical multiplexing device, and a common end of the 1*N emission optical switch is connected with a laser. M selecting ports of a 1*M receiving optical switch are respectively correspondingly connected with the M monitoring light output ends of the M-path optical demultiplexing device, and a common end of a 1*M receiving optical switch is connected with an optical detector. The M communication light output ends are communication optical signal output ends of the system. The monitoring light emitted by the laser can be sequentially connected with the monitoring light input ports of the N optical multiplexers by the emission optical switch, and the optical detector can be used to monitor the output ends of the M optical demultiplexers sequentially by the receiving optical switch. The optical path monitoring N*M matrix optical switch system has advantages of compacter integral structure, more stable performance, and ability of realizing optical path monitoring of N*M matrix optical switch and reliable feedback.
Description
Technical field
The utility model relates to technical field of optical fiber communication, is specifically related to a kind of light path monitoring N * Metzler matrix optical switching system.
Background technology
The appearance of Fibre Optical Communication Technology and development have brought revolutionary change to communication industry, and the communication service in the world about 85% is through Optical Fiber Transmission at present.ASON (ASON:automatic switched optical networks) is the study hotspot of optical fiber telecommunications system, its core node is made of optical cross connect (OXC:optical cross connect) equipment, and optical switch matrix is the vitals of optical cross-connection equipment.Growing along with optical communication technique, the aobvious ground of the High Reliability Design of N * Metzler matrix optical switch is more and more important.At present, the N that uses in communication system * Metzler matrix optical switch kind is a lot, mainly comprises MEMS technique N * Metzler matrix optical switch according to production technology, mechanical type N * Metzler matrix optical switch etc.When existing N * Metzler matrix optical switch uses in system, Main Problems is the timely current light path situation of reliable feedback optical switch, thereby the reliability of optical fiber telecommunications system is reduced.
The utility model content
Technical problem to be solved in the utility model is a kind of light path monitoring of design N * Metzler matrix optical switching system, in the inner integrated monitor light of N * Metzler matrix optical switch radiating portion, monitoring optical detection part, to N * Metzler matrix optical switch light path Real-Time Monitoring, the current light path situation of the switching of feedback matrix optical switch and hold mode improves and uses N * Metzler matrix optical switch reliability of Communication System.
Light path monitoring N * Metzler matrix optical switching system that the utility model is designed comprises N * Metzler matrix optical switch module, also comprises light radiating portion, optical detection part, N road recovery device, M road Optical Demultiplexing device and driving and interface module, wherein:
The recovery of N road comprises N optical multiplexer with device, and each optical multiplexer comprises 2 inputs and 1 output, and 2 inputs are respectively Communication ray signal input part and monitoring light input end.
Optical Demultiplexing device in M road comprises M optical demultiplexer, and each optical demultiplexer comprises 1 input and 2 outputs, and 2 outputs are respectively monitoring light output end and Communication ray signal output part.
N road Communication ray signal access N road recovery N Communication ray signal input part of N optical multiplexer of device, the recovery of N road connects N input of N * Metzler matrix optical switch module with N output of N optical multiplexer of device through light path, M output of N * Metzler matrix optical switch module connects M input of M optical demultiplexer of M road Optical Demultiplexing device.M Communication ray output of M road Optical Demultiplexing device is as the Communication ray signal output part of whole system.
The light radiating portion comprises laser and 1 * N utilizing emitted light switch, and N optical switch selected port and N road recovery to monitor light input end with N of device to connect one to one.Laser is connected through light path with the common port of 1 * N utilizing emitted light switch.
Optical detection comprises that partly 1 * M receives the photo-detector of optical switch and connection thereof.M M monitoring light output end that receives optical switch selection port and M road Optical Demultiplexing device connects one to one, and photo-detector is connected through light path with the common port that 1 * M receives optical switch.
Laser, 1 * N utilizing emitted light switch, 1 * M receive optical switch, photo-detector and matrix optical switch module and all are connected with interface module with driving, this module receives optical switch, photo-detector and matrix optical switch module and drives and control laser, 1 * N utilizing emitted light switch, 1 * M, and realize that this module also provides external communication interface to switching and the status monitoring of 1 * N utilizing emitted light switch and 1 * M reception optical switch.
The monitoring light that the laser of light radiating portion sends is through light path access 1 * N utilizing emitted light switch, selecting port when the 1st optical switch of 1 * N utilizing emitted light switch connects, monitoring light access N road recovery is with the monitoring light input end mouth of the 1st optical multiplexer of device, and is compound with the 1 road Communication ray signal.1 * M of the part of optical detection simultaneously receives optical switch, and M optical demultiplexer successively monitored, and confirms the state of 1-1,1-2,1-3 to 1-M light path in N * Metzler matrix optical switch module; In like manner, the light that laser sends enters the recovery of N road with 2 tunnel, 3 road to N roads in device successively by 1 * N utilizing emitted light switch, simultaneously 1 * M receives optical switch M road Deplexing apparatus is successively monitored, confirm 2-1,2-2,2-3 to 2-M in N * Metzler matrix optical switch module, 3-1,3-2,3-3 to 3-M light path are finally completed the monitoring to the N-M optical path states.
Described N, M are and are less than or equal to 256 integer.
Described photo-detector is photodiode (PIN pipe).
The recovery of described N road is the WDM device that wavelength is respectively Communication ray wavelength and monitoring optical wavelength with device.
Described laser is that the difference of wavelength and Communication ray signal wavelength is greater than the laser of 100nm.
Described laser is Fabry-Perot semiconductor laser (FP laser), and the monitoring light input end bandwidth of operation of described WDM device is ± 20nm.
Perhaps, described laser is distributed feedback semiconductor laser (Distributed Feedback Laser) type, and the monitoring light input end bandwidth of operation of described WDM device is ± 5nm, wavelength isolation 〉=45dB.
Described 1 * N receives optical switch, 1 * M utilizing emitted light switch wave-length coverage covers the monitoring optical wavelength, and does not cover the Communication ray signal wavelength, can improve like this isolation of monitoring light path and the light path of communicating by letter, the antijamming capability of enhancing monitoring system.
Described smooth radiating portion can be integrated into light emission module, and/or optical detection part can be integrated into the optical detection module, and/or N * Metzler matrix optical switch module, N road recovery can be integrated into matrix optical switch and light path coupled wave sub-module with device and M road Optical Demultiplexing device.
Compared with prior art, the advantage of the utility model light path monitoring N * Metzler matrix optical switching system is: the monitoring light path that 1, is different from communication wavelengths has realized the light path of N * Metzler matrix optical switch is monitored and reliable feedback; 2, integrated light emission module, optical detection module and matrix optical switch and light path coupled wave sub-module make that overall structure is compacter, performance is more stable, are more suitable for the application of optical fiber telecommunications system.
Description of drawings
Fig. 1 is the structure principle chart of this light path monitoring N * Metzler matrix optical switching system embodiment.
Number in the figure:
1, light radiating portion: 11,1 * 4 utilizing emitted light switch, 12, laser;
2, optical detection part: 21,1 * 4 receive optical switch, 22, photo-detector;
3,4 tunnel recovery devices; 4,4 * 4 matrix optical switch modules; 5,4 tunnel Optical Demultiplexing devices; 6, driving and interface module.
Embodiment
N * Metzler matrix optical switching system embodiment as shown in Figure 1 for the monitoring of this light path, this routine N=4, M=4, namely this example adopts 4 * 4 matrix optical switch modules 4, also comprises light radiating portion 1, optical detection part 2,4 tunnel recovery device 3,4 tunnel Optical Demultiplexing devices 5 and driving and interface modules 6.
Each comprises 2 inputs and 1 output with 4 optical multiplexers of device 3 in 4 tunnel recovery, and 2 inputs are respectively the Communication ray signal input part and monitor light input end; The Communication ray signal of Communication ray signal input part corresponding wavelength 131nm and 1550nm, the monitoring light of monitoring light input end corresponding wavelength 1060nm.4 tunnel recovery of this example are the WDM device of wavelength 131nm, 1550nm and 1060nm with device 3.
Each comprises 1 input and 2 outputs 4 optical demultiplexer of 4 tunnel Optical Demultiplexing devices 5, and 2 outputs are respectively monitoring light output end and Communication ray signal output part.The monitoring light of monitoring light output end corresponding wavelength 1060nm, the Communication ray signal of Communication ray signal output part corresponding wavelength 131nm and 1550nm.
4 road Communication ray signal access 4 tunnel recovery, 4 Communication ray signal input parts of 4 optical multiplexers of device 3,4 tunnel recovery connect 4 inputs of 4 * 4 matrix optical switch modules 4 with 4 outputs of 4 optical multiplexers of device 3 through light path, 4 outputs of 4 * 4 matrix optical switch modules 4 connect 4 inputs of 4 optical demultiplexer of 4 tunnel Optical Demultiplexing devices 5.4 Communication ray outputs of 4 optical demultiplexer are as the Communication ray signal output part of whole system.
The laser 12 of light radiating portion 1 is the FP laser of 1060nm wavelength (being the Fabry-Perot semiconductor laser), laser 12 outputs are connected by the common port of fused fiber splice with 1 * 4 utilizing emitted light switch 11,4 optical switches of 1 * 4 utilizing emitted light switch 11 are selected port corresponding 4 tunnel 4 monitoring light input ends of recovering with device 3 respectively, connect one to one.
Optical detection part 2 comprises that 1 * 4 receives optical switch 21 and photo-detector 22.4 monitoring light output ends of the selection port of 4 reception optical switches 21 and 4 tunnel Optical Demultiplexing devices 5 connect one to one, and this routine photo-detector 22 is photodiode (PIN pipe).Photo-detector 22 and 1 * 4 common port that receives optical switch 21 pass through fused fiber splice.
This routine light radiating portion 1 is integrated into light emission module, optical detection part 2 is integrated into the optical detection module, and 4 * 4 matrix optical switch module 4,4 tunnel recovery are integrated into matrix optical switch and light path coupled wave sub-module with device 3 and 4 tunnel Optical Demultiplexing devices 5.
During the present embodiment work, the light that laser 12 sends is selected port, is entered the monitoring light input end that the 1 road optical multiplexer in device 3 is used in 4 tunnel recovery by the 1st optical switch of 1 * 4 utilizing emitted light switch 11,21 pairs of 4 optical demultiplexer of 1 * 4 reception optical switch are successively monitored simultaneously, confirm optical routing 1-1,1-2,1-3,1-4 state; In like manner the light that sends of laser 12 enters 4 tunnel recovery with the monitoring light input ends of the the 2 tunnel, the 3 tunnel, the 4 road optical multiplexer in devices 3 successively by 1 * 4 utilizing emitted light switch, 21 pairs of 4 tunnel Optical Demultiplexing devices 5 of 1 * 4 reception optical switch are successively monitored simultaneously, confirm the state of optical routing 2-1,2-2,2-3,2-4,3-1,3-2,3-3,3-4,4-1,4-2,4-3,4-4.
Above-described embodiment is only the specific case that the purpose of this utility model, technical scheme and beneficial effect are further described, and the utility model is not to be defined in this.All any modifications of making, be equal to replacement, improvement etc., within all being included in protection range of the present utility model within scope of disclosure of the present utility model.
Claims (8)
1. light path monitoring N * Metzler matrix optical switching system, comprise N * Metzler matrix optical switch module, it is characterized in that:
Also comprise light radiating portion (1), optical detection part (2), N road recovery device (3), M road Optical Demultiplexing device (5) and driving and interface module (6), wherein:
The recovery of N road comprises N optical multiplexer with device (3), and each optical multiplexer comprises 2 inputs and 1 output, and 2 inputs are respectively Communication ray signal input part and monitoring light input end;
M road Optical Demultiplexing device (5) comprises M optical demultiplexer, and each optical demultiplexer comprises 1 input and 2 outputs, and 2 outputs are respectively monitoring light output end and Communication ray signal output part;
N road Communication ray signal access N road recovery N Communication ray signal input part of N optical multiplexer of device (3), the recovery of N road connects N input of N * Metzler matrix optical switch module (4) with N output of N optical multiplexer of device (3) through light path, M output of N * Metzler matrix optical switch module (4) connects a M optical demultiplexer M input of M road Optical Demultiplexing device (5); The Communication ray signal output part that M Communication ray output of M road Optical Demultiplexing device (5) is whole system;
Light radiating portion (1) comprises laser (12) and the 1 * N utilizing emitted light switch (11) that connects thereof, N optical switch selected port and N road recovery to monitor light input end with N of device (3) to connect one to one, and laser (12) is connected through light path with the common port of 1 * N utilizing emitted light switch (11);
Optical detection part 2 comprises the photo-detector (22) that 1 * M receives optical switch (21) and connects, M M monitoring light output end that receives optical switch selection port and M road Optical Demultiplexing device (5) connects one to one, and photo-detector (22) is connected through light path with the common port that 1 * M receives optical switch (21);
Laser (12), 1 * N utilizing emitted light switch (11), 1 * M receive optical switch (21), photo-detector (22) and matrix optical switch module (4) and all are connected with interface module (6) with driving.
2. light path according to claim 1 is monitored N * Metzler matrix optical switching system, it is characterized in that:
Described N, M are and are less than or equal to 256 integer.
3. light path according to claim 1 is monitored N * Metzler matrix optical switching system, it is characterized in that:
Described photo-detector (22) is photodiode.
4. light path according to claim 1 is monitored N * Metzler matrix optical switching system, it is characterized in that:
Described laser (12) is that the difference of wavelength and Communication ray signal wavelength is greater than the laser of 100nm.
5. according to claim 1 to 4, the described light path of any one is monitored N * Metzler matrix optical switching system, it is characterized in that:
The recovery of described N road is respectively the WDM device of Communication ray wavelength and monitoring optical wavelength for wavelength with device (3).
6. light path according to claim 5 is monitored N * Metzler matrix optical switching system, it is characterized in that:
Described laser (12) is the Fabry-Perot semiconductor laser, and the monitoring light input end bandwidth of operation of described WDM device is ± 20nm.
7. light path according to claim 5 is monitored N * Metzler matrix optical switching system, it is characterized in that:
Described laser (12) is the distributed feedback semiconductor laser type, and the monitoring light input end bandwidth of operation of described WDM device is ± 5nm, wavelength isolation 〉=45dB.
8. according to claim 1 to 4, the described light path of any one is monitored N * Metzler matrix optical switching system, it is characterized in that:
Described smooth radiating portion (1) is integrated into light emission module, and/or optical detection part (2) is integrated into the optical detection module, and/or N * Metzler matrix optical switch module (4), N road recovery are integrated into matrix optical switch and light path coupled wave sub-module with device (3) and M road Optical Demultiplexing device (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220736476 CN203014816U (en) | 2012-12-27 | 2012-12-27 | Optical path monitoring N*M matrix optical switch system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220736476 CN203014816U (en) | 2012-12-27 | 2012-12-27 | Optical path monitoring N*M matrix optical switch system |
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| CN203014816U true CN203014816U (en) | 2013-06-19 |
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| CN 201220736476 Expired - Fee Related CN203014816U (en) | 2012-12-27 | 2012-12-27 | Optical path monitoring N*M matrix optical switch system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9794657B1 (en) | 2016-06-02 | 2017-10-17 | Huawei Technologies Co., Ltd. | System and method for optical switching |
| CN107801108A (en) * | 2016-08-30 | 2018-03-13 | 华为技术有限公司 | The method and apparatus for controlling optical switch matrix |
| CN109617605A (en) * | 2018-11-27 | 2019-04-12 | 中国船舶重工集团公司第七〇九研究所 | Light path selector, optical fiber telecommunications system and method |
-
2012
- 2012-12-27 CN CN 201220736476 patent/CN203014816U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9794657B1 (en) | 2016-06-02 | 2017-10-17 | Huawei Technologies Co., Ltd. | System and method for optical switching |
| WO2017206294A1 (en) * | 2016-06-02 | 2017-12-07 | Huawei Technologies Co., Ltd. | System and method for optical switching |
| CN107801108A (en) * | 2016-08-30 | 2018-03-13 | 华为技术有限公司 | The method and apparatus for controlling optical switch matrix |
| CN107801108B (en) * | 2016-08-30 | 2020-04-03 | 华为技术有限公司 | Method and apparatus for controlling an optical switch matrix |
| CN109617605A (en) * | 2018-11-27 | 2019-04-12 | 中国船舶重工集团公司第七〇九研究所 | Light path selector, optical fiber telecommunications system and method |
| CN109617605B (en) * | 2018-11-27 | 2020-07-07 | 中国船舶重工集团公司第七一九研究所 | Optical path selector, optical fiber communication system and method |
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130619 Termination date: 20211227 |
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| CF01 | Termination of patent right due to non-payment of annual fee |