CN111342928A - WDM system for optical bypass protection fast switching - Google Patents
WDM system for optical bypass protection fast switching Download PDFInfo
- Publication number
- CN111342928A CN111342928A CN202010229890.9A CN202010229890A CN111342928A CN 111342928 A CN111342928 A CN 111342928A CN 202010229890 A CN202010229890 A CN 202010229890A CN 111342928 A CN111342928 A CN 111342928A
- Authority
- CN
- China
- Prior art keywords
- optical
- wave
- wdm
- port
- signal
- 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.)
- Pending
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J14/00—Optical multiplex systems
- H04J14/02—Wavelength-division multiplex systems
- H04J14/0287—Protection in WDM systems
-
- 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
- H04B10/03—Arrangements for fault recovery
- H04B10/032—Arrangements for fault recovery using working and protection systems
-
- 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
- H04B10/03—Arrangements for fault recovery
- H04B10/038—Arrangements for fault recovery using bypasses
-
- 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
- H04B10/07955—Monitoring or measuring power
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J14/00—Optical multiplex systems
- H04J14/02—Wavelength-division multiplex systems
- H04J14/0201—Add-and-drop multiplexing
- H04J14/0202—Arrangements therefor
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J14/00—Optical multiplex systems
- H04J14/02—Wavelength-division multiplex systems
- H04J14/0227—Operation, administration, maintenance or provisioning [OAMP] of WDM networks, e.g. media access, routing or wavelength allocation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J14/00—Optical multiplex systems
- H04J14/02—Wavelength-division multiplex systems
- H04J14/0287—Protection in WDM systems
- H04J14/0297—Optical equipment protection
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Optical Communication System (AREA)
Abstract
The invention relates to a WDM system with optical bypass protection and fast switching, when a client device 1 sends a signal to a client device 2 or receives a signal sent by the client device 2, the sent optical signal is transmitted to a wave-combining wave-splitting device WDM-1 and WDM-2 or WDM-3 and WDM-4 through an optical fiber, the wave-combining wave-splitting device WDM-2 or WDM-3 outputs an optical signal to an optical bypass protection device OBP, the optical bypass protection device OBP splits the light into 2% and 98% through a light splitter, 2% of the light enters the PD1 and PD5 probes to monitor the input optical power in real time, 98% of the light enters OSW1 or OSW2 and is output to the protected device, then is input to the optical bypass protection device OBP from the protected device, the input main light is split into 2% and 98% through the light splitter and 2% of the light enters the PD2 or PD6 probes, when the optical power of PD2 or PD6 is greater than 25dB, the optical switch OSW in the optical bypass protection device OSW switches from a bypass state to a fast switching state, thereby the protection system can work normally.
Description
Technical Field
The invention relates to the technical field of optical bypass protection, in particular to a WDM system for optical bypass protection fast switching.
Background
In the existing WDM system, the transmission process is as follows: the IN1-1 optical signal sent by the client device 1 is transmitted to the multiplexer of the wavelength multiplexing/demultiplexing device WDM-1 through the optical fiber, multiplexed with other beams of optical signals with different wavelengths, and transmitted to the demultiplexing device of the wavelength multiplexing/demultiplexing device WDM-2 through the optical fiber IN a long distance. The wave separator of WDM-2 decomposes the input optical signal into a plurality of beams of optical signals with different wavelengths, one beam of light is input from the RX3 end of the protected device and then is emitted from the TX3 end of the protected device. The emitted optical signals are transmitted to a wave combiner of a wave combining and wave separating device WDM-3, are combined with a plurality of beams of optical signals with different wavelengths, and are transmitted to a wave separating device of a wave combining and wave separating device WDM-4 through an optical fiber in a long distance. The WDM-4 demultiplexer decomposes the input optical signal into OUT2-1 and a plurality of optical signals of different wavelengths, wherein the OUT2-1 optical signal is transmitted to the client device 2;
the receiving process comprises the following steps: the optical signal IN2-1 emitted from the client device 2 is transmitted to the multiplexer of the wavelength multiplexing/demultiplexing device WDM-4 through the optical fiber, and is multiplexed with other beams of optical signals with different wavelengths and is transmitted to the demultiplexing device of the wavelength multiplexing/demultiplexing device WDM-3 through the optical fiber IN a long distance. The WDM-3 wave separator decomposes the input optical signal into a plurality of beams of optical signals with different wavelengths, one beam of light is input from the RX4 end of the protected equipment and then is emitted from the TX4 end of the protected equipment, the emitted optical signal is transmitted to the wave combiner of the wave combiner-wave separator WDM-2, is combined with the plurality of beams of optical signals with different wavelengths, and then is transmitted to the wave separator of the wave combiner-wave separator WDM-1 through an optical fiber in a long distance. The demultiplexer of WDM-1 splits the incoming optical signal into OUT1-1 and other optical signals of different wavelengths, where OUT1-1 optical signals are transmitted to customer device 1.
When the protected device is powered off or the protected device is damaged and stops running, the system cannot work normally.
Disclosure of Invention
Aiming at the situation, in order to overcome the defects of the prior art, the optical bypass protection device OBP is added beside the protected device, and the device can rapidly switch from the main road state to the bypass state when the optical power value detected by the PD probe of the protected device in the power-off state or the main road state is more than 25dB, so that the protection system can normally work.
The technical scheme for solving the problem is that the optical signal transmission device comprises client equipment 1, a wave combination and wave division device WDM-2, optical bypass protection equipment OBP, protected equipment, a wave combination and wave division device WDM-3, a wave combination and wave division device WDM-4 and client equipment 2, and is characterized in that an optical signal sent by the client equipment 1 is transmitted to the wave combination and wave division device WDM-1 through an optical fiber;
the wave-combining wave separator WDM-1, the wave-combining wave separator WDM-2, the wave-combining wave separator WDM-3 and the wave-combining wave separator WDM-4 respectively comprise a wave-combining device and a wave separator, the wave-combining device is used for combining a plurality of light signals with different wavelengths into a light signal, and the wave separator is used for decomposing the light signal into a plurality of light signals with different wavelengths;
the optical bypass protection device OBP comprises an optical splitter, an optical switch OSW1, an optical switch OSW2, a PD1 probe, a PD2 probe, a PD5 probe, a PD6 probe, an IN1 port, an RX2 port, an IN2 port, an RX1 port, an OUT2 port, a TX1 port, an OUT1 port and a TX2 port, when the client device 1 sends signals to the client device 2, a combiner of the wave combiner WDM-1 combines an IN1-1 optical signal sent by the client device 1 with other optical signals with different wavelengths and transmits the optical signals to the wave splitter of the wave combiner-splitter WDM-2 at a long distance through an optical fiber, the wave splitter of the WDM-2 decomposes an input main optical signal into a plurality of optical signals with different wavelengths, wherein one optical signal enters the optical bypass protection device OBP through the IN1 port, the optical signal is firstly split into 2%, 98% of the optical signal by the optical splitter, 2% of the optical signal enters the PD1 power of the optical bypass protection device OBP, 98% of the optical signal passes through the OSW2 state of the optical switch OBP, the light is output from a TX1 port to a protected device and then is sent back to an RX2 port of an optical bypass protection device from the protected device, the optical bypass protection device OBP divides the light input from the RX2 port into 2 percent and 98 percent by an optical splitter, 2 percent of the light enters a PD2 probe to detect the optical power, when the PD2 probe detects an optical power greater than 25dB, optical switch OSW2 will switch from main to bypass state, therefore, the protection system can work normally, otherwise, the optical signal input from the RX2 port is output from the OUT2 port to the wave combiner of the wave-combining wave-splitting filter WDM-3 through the main circuit state of the OSW2 optical switch, the optical signals are combined with other optical signals with different wavelengths and are transmitted to a wave splitter of a wave-combining wave-splitting filter WDM-4 in a long distance through an optical fiber, the wave splitter of the wave-combining wave-splitting filter WDM-4 decomposes the input optical signals into OUT2-1 and a plurality of optical signals with different wavelengths, wherein the OUT2_1 signal is transmitted to the client device 2;
when the client device 1 receives the signal sent by the client device 2, the IN2_1 optical signal sent by the client device 2 is transmitted to the multiplexer of the wavelength-combining demultiplexer WDM-4 through the optical fiber, is multiplexed with other optical signals with different wavelengths, and is transmitted to the demultiplexer of the wavelength-combining demultiplexer WDM-3 through the optical fiber IN a long distance, the demultiplexer of the WDM-3 decomposes the input optical signal into a plurality of optical signals with different wavelengths, one of the optical signals is input from the IN2 port of the optical bypass protection device OBP, the input optical signal is internally divided into 2% and 98% through the demultiplexer, 2% of the light enters the PD5 probe for detecting the optical power, 98% of the light passes through the main path state of the optical switch OSW1, is output from the port of the TX2 to the protected device, and is sent back to the RX1 port of the OBP from the protected device, and the light input from the RX1 port is divided into 2% through the demultiplexer, 98% and 2% of light enters the PD6 probe for detecting optical power, when the optical power detected by the PD6 probe is more than 25dB, the OSW1 optical switch is switched from a main path to a bypass state, so that the protection system can work normally, otherwise, an optical signal input by an RX1 port is output from an OUT1 port to a multiplexer of the wavelength-combining demultiplexer WDM-2 through the main path state of the OSW1 optical switch, is multiplexed with other optical signals with different wavelengths, and is decomposed into a plurality of optical signals with different wavelengths by a demultiplexer of the wavelength-combining demultiplexer WDM-1 through optical fiber long-distance transmission, wherein the OUT1_1 optical signal is transmitted to the client device 1.
Due to the adoption of the technical scheme, compared with the prior art, the invention has the following advantages; the optical bypass protection device can monitor the optical power of input and output optical signals in real time through the probe, when the optical power detected by the PD2/PD6 probe is greater than 25dB, the optical bypass protection device automatically and instantly switches the main bypass rapidly without manual operation, and can also switch the states of the main bypass and the bypass arbitrarily through the Mode button of the OBP panel on the premise of ensuring that other services are not blocked, thereby reducing various losses caused by network node faults of the WDM system, increasing the reliability of the WDM system and improving the service quality of operators.
Drawings
Fig. 1 is a panel diagram of an optical bypass protection device OBP of the present invention.
Fig. 2 is a state diagram of the main path inside the OBP of the optical bypass protection device of the present invention.
Fig. 3 is a diagram of the bypass state inside the optical bypass protection device OBP of the present invention.
Fig. 4 is a block diagram of a WDM system with optical bypass protection fast switching in accordance with the present invention.
Detailed Description
The foregoing and other technical matters, features and effects of the present invention will be apparent from the following detailed description of the embodiments with reference to the accompanying drawings in which fig. 1 to 4 are attached, and the structural matters in the embodiments are referred to in the following description with reference to the accompanying drawings in which:
a WDM system of optical bypass protection fast switch comprises a client device 1, a wave-combining wave-splitting device WDM-2, an optical bypass protection device OBP, a protected device, a wave-combining wave-splitting device WDM-3, a wave-combining wave-splitting device WDM-4 and a client device 2, wherein an optical signal sent by the client device 1 is transmitted to the wave-combining wave-splitting device WDM-1 through an optical fiber;
the wave-combining wave separator WDM-1, the wave-combining wave separator WDM-2, the wave-combining wave separator WDM-3 and the wave-combining wave separator WDM-4 respectively comprise a wave-combining device and a wave separator, the wave-combining device is used for combining a plurality of light signals with different wavelengths into a light signal, and the wave separator is used for decomposing the light signal into a plurality of light signals with different wavelengths;
the optical bypass protection device OBP comprises an optical splitter, an optical switch OSW1, an optical switch OSW2, a PD1 probe, a PD2 probe, a PD5 probe and a PD6 probe, an IN1 port, an RX2 port, an IN2 port, an RX1 port, an OUT2 port, a TX1 port, an OUT1 port and a TX2 port, wherein the optical bypass protection device OBP is IN a main circuit state: the optical signal input from the IN1 port is output from the TX1 port signal; an optical signal input from an RX2 port is output from an OUT2 port; the optical signal input from the IN2 port is output from the TX2 port; an optical signal input from an RX1 port is output from an OUT1 port; optical signals input by pins of an IN1 port, an RX2 port, an IN2 port and an RX1 port are split by an optical splitter, 2% of light enters a PD probe, 98% of light enters OSW1 or OSW2, PD1 and PD2 probes, PD5 and PD6 probes are used for detecting the optical power of the input optical signals, and when the optical power value detected by the PD2 or PD6 is more than 25dB, an Optical Switch (OSW) inside an optical bypass protection device OBP is quickly switched from a main circuit state to a bypass state;
bypass state of optical bypass protection device OBP: the optical signal input from the IN1 port is output from the OUT2 port; the optical signal input from the IN2 port is output from the OUT1 port; fig. 1 is a diagram of a panel of an optical bypass protection device OBP, in which a Mode button of the panel can switch between a main path state in which Pri/sec turns on green and a bypass state in which Pri/sec turns on red in a manual Mode;
the specific protection process is as follows: when the client device 1 sends a signal to the client device 2, the multiplexer of the wavelength multiplexing/demultiplexing device WDM-1 combines the IN1-1 optical signal sent by the client device 1 with other optical signals with different wavelengths into a single optical signal, and transmits the single optical signal to the demultiplexer of WDM-2 via an optical fiber for a long distance, the demultiplexer of WDM-2 decomposes the input optical signal into a plurality of optical signals with different wavelengths, wherein one optical signal enters the optical bypass protection device OBP from the IN1 port, is internally demultiplexed into 2% and 98% by the optical splitter, 2% of the optical signal enters the PD1 probe for detecting optical power, 98% of the optical signal passes through the main circuit state of the optical switch OSW2 and is output from the TX1 port to the protected device, and then is sent back to the RX2 port of the OBP from the protected device, the OBP demultiplexes the optical signal input from the RX2 port into 2% and 98% of the optical signal by the optical splitter for detecting the PD2 optical power, when the optical power detected by the PD2 probe is greater than 25dB, the optical switch OSW2 switches from the main path to the bypass state, so that the protection system can work normally, otherwise, the optical signal input from the RX2 port passes through the main path state of the OSW2 optical switch and is output from the OUT2 port to the multiplexer of the multiplexer-demultiplexer WDM-3, and is multiplexed with other optical signals with different wavelengths and is transmitted to the demultiplexer of the multiplexer-demultiplexer WDM-4 through the optical fiber in a long distance, the demultiplexer of the WDM-4 decomposes the input optical signal into a plurality of optical signals with different wavelengths, wherein the OUT2_1 signal is transmitted to the client device 2;
when the client device 1 receives the signal sent by the client device 2, the IN2_1 optical signal sent by the client device 2 is transmitted to the multiplexer of the wavelength multiplexing/demultiplexing device WDM-4, multiplexed with other optical signals with different wavelengths, and then transmitted to the demultiplexer of WDM-3 remotely through the optical fiber, the demultiplexer of WDM-3 decomposes the input optical signal into a plurality of optical signals with different wavelengths, wherein one optical signal is input from the IN2 port of the optical bypass protection device OBP, the input optical signal is internally divided into 2% and 98% by the demultiplexer, 2% of the light enters the PD5 probe for detecting the optical power, 98% of the light passes through the main circuit state of the optical switch OSW1, is output from the TX2 port to the protected device, and then is sent back from the protected device to the RX1 port of the OBP, the OBP splits the light input from the RX1 port into 2% and 98% by the demultiplexer, and 2% of the light enters the PD6 probe, when the optical power detected by the PD6 probe is greater than 25dB (note: the optical power value of 25dB is a default value set by the board factory, and the customer can set the value on the network management interface), the OSW1 optical switch switches from the main path to the bypass state, so that the protection system can work normally, otherwise, the optical signal input from the RX1 port passes through the main path state of the OSW1 optical switch and is output from the OUT1 port to the multiplexer of the WDM-2, the multiplexer of the WDM-2 multiplexes the input optical signal and the optical signals with different wavelengths, and transmits the multiplexed optical signal to the splitter of the multiplexer-splitter WDM-1 through the optical fiber, the splitter of the WDM-1 splits the input optical signal into a plurality of optical signals with different wavelengths, and the OUT1_1 optical signal is transmitted to the customer equipment 1.
When the invention is used IN detail, the combiner of the wavelength-combining wave-splitting device WDM-1 synthesizes the IN1-1 optical signal sent by the client device 1 and other optical signals with different wavelengths into a beam of optical signal, the optical signal is transmitted to the wave-splitting device WDM-2 through optical fiber IN a long distance, the wave-splitting device WDM-2 decomposes the input optical signal into a plurality of optical signals with different wavelengths, wherein one optical signal enters the optical bypass protection device OBP from the IN1 port, the optical signal is internally split into 2% and 98% by the wave-splitting device, 2% of the optical signal enters the PD1 probe to detect the optical power, 98% of the optical signal passes through the main path state of the optical switch OSW2, the optical signal is output to the protected device from the TX1 port, and then sent back to the RX2 port of the OBP, the OBP splits the optical signal input from the RX2 port into 2% and 98% of the optical signal by the wave-splitting device to enter the PD2 probe to detect the optical power, when the optical power detected by the PD2 probe is more than 25dB, the optical switch OSW2 switches from the main path to the bypass state, so that the protection system can work normally, otherwise, the optical signal input from the RX2 port passes through the main path state of the OSW2 optical switch, is output from the OUT2 port to the multiplexer of the multiplexer-demultiplexer WDM-3, is multiplexed with other optical signals with different wavelengths, and is transmitted to the demultiplexer of the multiplexer-demultiplexer WDM-4 through the optical fiber in a long distance, the demultiplexer of the WDM-4 decomposes the input optical signal into a plurality of optical signals with different wavelengths, wherein the OUT2_1 signal is transmitted to the client device 2;
when the client device 1 receives the signal sent by the client device 2, the IN2_1 optical signal sent by the client device 2 is transmitted to the multiplexer of the wavelength multiplexing/demultiplexing device WDM-4, multiplexed with other optical signals with different wavelengths, and then transmitted to the demultiplexer of WDM-3 through the optical fiber IN a long distance, the demultiplexer of WDM-3 decomposes the input optical signal into a plurality of optical signals with different wavelengths, wherein one optical signal is input from the IN2 port of the optical bypass protection device OBP, the input optical signal is internally demultiplexed into 2%, 98%, 2% of the light enters the PD5 probe for detecting the optical power, 98% of the light passes through the main path state of the optical switch OSW1, is output from the TX2 port to the protected device, and then is sent back to the RX1 port of the OBP from the protected device, the OBP demultiplexes the light input from the RX1 port into 2%, 98%, and 2% of the light enters the PD6 probe through the demultiplexer, when the optical power detected by the PD6 probe is greater than 25dB (note: the optical power value of 25dB is a default value set by the board factory, and the customer can set the value on the network management interface), the OSW1 optical switch switches from the main path to the bypass state, so that the protection system can work normally, otherwise, the optical signal input from the RX1 port passes through the main path state of the OSW1 optical switch and is output from the OUT1 port to the multiplexer of the WDM-2, the multiplexer of the WDM-2 multiplexes the input optical signal and the optical signals with different wavelengths, and transmits the multiplexed optical signal to the splitter of the multiplexer-splitter WDM-1 through the optical fiber, the splitter of the WDM-1 splits the input optical signal into a plurality of optical signals with different wavelengths, and the OUT1_1 optical signal is transmitted to the customer equipment 1.
Claims (1)
1. A WDM system of optical bypass protection fast switch, including customer's apparatus 1, wave-combination wave-splitting filter WDM-2, optical bypass protective equipment OBP, protected apparatus, wave-combination wave-splitting filter WDM-3, wave-combination wave-splitting filter WDM-4, customer's apparatus 2, characterized by that, the optical signal that the said customer's apparatus 1 sends out transmits to wave-combination wave-splitting filter WDM-1 through the optic fibre;
the wave-combining wave separator WDM-1, the wave-combining wave separator WDM-2, the wave-combining wave separator WDM-3 and the wave-combining wave separator WDM-4 respectively comprise a wave-combining device and a wave separator, the wave-combining device is used for combining a plurality of light signals with different wavelengths into a light signal, and the wave separator is used for decomposing the light signal into a plurality of light signals with different wavelengths;
the optical bypass protection device OBP comprises an optical splitter, an optical switch OSW1, an optical switch OSW2, a PD1 probe, a PD2 probe, a PD5 probe and a PD6 probe, an IN1 port, an RX2 port, an IN2 port, an RX1 port, an OUT2 port, a TX1 port, an OUT1 port and a TX2 port, when the client device 1 sends signals to the client device 2, a combiner of the wave combiner-splitter WDM-1 combines an IN1-1 optical signal sent by the client device 1 with other optical signals with different wavelengths into a beam of optical signals, the optical signal is transmitted to the wave splitter of the WDM-2 through an optical fiber for a long distance, the wave splitter of the WDM-2 splits the input optical signal into a plurality of optical signals with different wavelengths, wherein one optical signal enters the optical bypass protection device OBP from the IN1 port, the optical bypass protection device OBP internally splits the optical signals into 2%, 98% of the optical signals, 2% of the optical signals enter the PD1, 98% of the optical probe optical power, and 98% of the optical signals pass through the status of the optical switch 2, the optical signal input from the RX2 port is output from the OUT2 port to the WDM-4 splitter, the WDM-4 splitter splits the input optical signal into a plurality of beams with different wavelengths, wherein the OUT2_1 signal is transmitted to the client device 2;
when the client device 1 receives the signal sent by the client device 2, the IN2_1 optical signal sent by the client device 2 is transmitted to the multiplexer of the multiplexer/demultiplexer WDM-4 through the optical fiber, multiplexed with other optical signals with different wavelengths, and transmitted to the demultiplexer of the multiplexer/demultiplexer WDM-3 through the optical fiber at a long distance, the demultiplexer of the WDM-3 splits the input optical signal into a plurality of optical signals with different wavelengths, one of the optical signals is input from the IN2 port of the optical bypass protection device OBP, the input optical signal is internally split into 2% and 98% through the demultiplexer, 2% of the light enters the PD5 probe for detecting the optical power, 98% of the light passes through the main path state of the optical switch OSW1, is output from the TX2 port to the protected device, and then is sent back to the RX1 port of the OBP from the protected device, the OBP splits the input light into 2% and 98% through the demultiplexer, 2% of light enters the PD6 probe for detecting optical power, when the optical power detected by the PD6 probe is greater than 25dB, the OSW1 optical switch is switched from a main path to a bypass state, so that the protection system can work normally, otherwise, an optical signal input from an RX1 port is output from an OUT1 port to a combiner of the wave combiner/splitter WDM-2 through the main path state of the OSW1 optical switch, is combined with other optical signals with different wavelengths, is decomposed into a plurality of optical signals with different wavelengths by a wave splitter of the wave combiner/splitter WDM-1 through optical fiber long-distance transmission, and an OUT1_1 optical signal is transmitted to the client device 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010229890.9A CN111342928A (en) | 2020-03-27 | 2020-03-27 | WDM system for optical bypass protection fast switching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010229890.9A CN111342928A (en) | 2020-03-27 | 2020-03-27 | WDM system for optical bypass protection fast switching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111342928A true CN111342928A (en) | 2020-06-26 |
Family
ID=71188023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010229890.9A Pending CN111342928A (en) | 2020-03-27 | 2020-03-27 | WDM system for optical bypass protection fast switching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111342928A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116017214A (en) * | 2022-11-30 | 2023-04-25 | 上海欣诺通信技术股份有限公司 | Fault diagnosis system based on optical fiber communication |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101826917A (en) * | 2010-04-21 | 2010-09-08 | 瑞斯康达科技发展股份有限公司 | Optical line protection device and system |
| CN202940821U (en) * | 2012-09-05 | 2013-05-15 | 瑞斯康达科技发展股份有限公司 | Light bypass protection device |
-
2020
- 2020-03-27 CN CN202010229890.9A patent/CN111342928A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101826917A (en) * | 2010-04-21 | 2010-09-08 | 瑞斯康达科技发展股份有限公司 | Optical line protection device and system |
| CN202940821U (en) * | 2012-09-05 | 2013-05-15 | 瑞斯康达科技发展股份有限公司 | Light bypass protection device |
Non-Patent Citations (2)
| Title |
|---|
| 张明路: "光纤自动旁路器的设计与实现", 《中国优秀硕士论文全文数据库（信息科技辑）》 * |
| 韩瑜等: "基于光网状网物理层的智能全光保护方案设计", 《东南大学学报（自然科学版）》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116017214A (en) * | 2022-11-30 | 2023-04-25 | 上海欣诺通信技术股份有限公司 | Fault diagnosis system based on optical fiber communication |
| CN116017214B (en) * | 2022-11-30 | 2024-01-26 | 上海欣诺通信技术股份有限公司 | Fault diagnosis system based on optical fiber communication |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP3013799B2 (en) | Transmitter and receiver for WDM optical transmission | |
| US11258509B2 (en) | Optical time-domain reflectometer interoperable trunk switch | |
| US5867289A (en) | Fault detection for all-optical add-drop multiplexer | |
| JP3060994B2 (en) | Output port switching device in N-WDM system | |
| CN106817159B (en) | A kind of mobile forward pass network system of passive wavelength-division | |
| JP6443447B2 (en) | Optical add-drop multiplexer and branch unit | |
| JPH10173598A (en) | Optical multiplexing and demultiplexing device and optical transmission system using the device | |
| EP1004184B1 (en) | Self-healing ring network and a method for fault detection and rectifying | |
| KR100785943B1 (en) | Optical transponder | |
| US11870552B2 (en) | Apparatus and method for coherent optical multiplexing 1+1 protection | |
| US20080292310A1 (en) | Method, Apparatus And System For Optical Channel Group Shared Protection | |
| US6898376B1 (en) | Optical ring protection apparatus and methods | |
| CN111342928A (en) | WDM system for optical bypass protection fast switching | |
| JP2000115132A (en) | Light wavelength multiplex transmitter and transmission method, light wavelength multiplex receiver and reception method and light wavelength multiplex transmitter | |
| CN112217568B (en) | Optical signal processing device and communication system | |
| JP2000151514A (en) | Transmitter, receiver and transmitting device for optical wavelength multiplex, and optical transmission method | |
| US6922530B1 (en) | Method and apparatus for optical channel switching in an optical add/drop multiplexer | |
| JPH11243374A (en) | Optical signal transmission system and optical signal transmitting device used therein | |
| CN101150366A (en) | Wave division multiplexing optical transmission system | |
| KR100334908B1 (en) | Real-time and Automatic Control Monitoring System of Optical Mux/Demux Components in WDM Transmission System | |
| CN218829938U (en) | Single-fiber bidirectional wavelength division multiplexing optical module integrated with OTDR function | |
| WO2021229744A1 (en) | Failure detection device, failure detection method, and failure-detection-program recording medium | |
| JP3039430B2 (en) | Optical add / drop circuit and optical transmission method | |
| JPH11136187A (en) | Wavelength multiplex communication system and its fault relief method | |
| JP3085240B2 (en) | WDM system |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200626 |
|
| RJ01 | Rejection of invention patent application after publication |