CN212435865U - Multipath optical protection and wavelength division multiplexing integrated semi-active module - Google Patents
Multipath optical protection and wavelength division multiplexing integrated semi-active module Download PDFInfo
- Publication number
- CN212435865U CN212435865U CN202021118833.5U CN202021118833U CN212435865U CN 212435865 U CN212435865 U CN 212435865U CN 202021118833 U CN202021118833 U CN 202021118833U CN 212435865 U CN212435865 U CN 212435865U
- Authority
- CN
- China
- Prior art keywords
- wavelength division
- photodetector
- division multiplexer
- optical
- fiber coupler
- 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
Images
Landscapes
- Optical Communication System (AREA)
Abstract
The utility model discloses a multichannel light protection and wavelength division multiplexing are used for half active module of an organic whole, it relates to optics wavelength division multiplexing technical field, include: a housing; a plurality of independent optical transmission and protection units mounted in the housing, each optical transmission and protection unit comprising: a first fiber coupler; a second fiber coupler; the optical switch is respectively connected with the first optical fiber coupler and the second optical fiber coupler; the seventh photoelectric detector is connected with the first optical fiber coupler; and the like; a controller; the fourth photoelectric detector, the fifth photoelectric detector, the sixth photoelectric detector, the seventh photoelectric detector and the eighth photoelectric detector convert received optical signals into electric signals and send the electric signals to the controller, and the controller controls the communication state of the optical switch or sends an alarm based on the electric signals. The optical switching and monitoring system can be compatible with multiple groups of wavelength division, realizes optical switching and monitoring unification, and each path operates mutually without mutual interference.
Description
Technical Field
The utility model relates to an optics wavelength division multiplexing technical field, in particular to multichannel light protection and wavelength division multiplexing are used for half active module integrative.
Background
With the coming of the 5G era, international operators have studied the WDM-PON technology as a key scheme for 5G forward transmission, the WDM-PON technology is used in the 5G forward transmission field, the 5G forward transmission is limited by insufficient fiber resources, the large number of base stations, high cost sensitivity and other factors, and the WDM-PON technology is a very difficult topic for the operators.
The current general principle for operators to solve the problem is that, since they are less willing to spend more money to re-route the fiber: the optical fiber direct drive is mainly used, WDM wavelength division multiplexing technology is introduced to make up for areas with insufficient optical fiber, 25G single-fiber Bidirectional (BIDI) optical modules are adopted in areas with abundant optical fiber, 50% of optical fiber resources can be saved, a point-to-point active WDM/OTN scheme is adopted in areas with scarce optical fiber, and a point-to-multipoint WDM ring structure is adopted in scenes with scarce optical fiber.
In order to meet the 5G fronthaul requirement, an Open-WDM scheme is proposed by some operators. The Open-WDM scheme adopts a semi-active system, mainly comprises an AAU color light module, an AAU side passive wavelength division multiplexer and a DU side active WDM device, and forms a uniformly controlled forward transmission network, which can reduce the requirement of optical fiber resources and has forward transmission control capability. A brand-new Open-WDM scheme is favorable for division of a maintenance interface and a management domain by wireless and transmission; the method is favorable for specialized purchasing and centralized uniform purchasing and configuration of the optical module; the method is beneficial to maintenance means flexibility and a low-cost OAM mechanism. However, the existing optical path with multiple functions occupies a large space, and the use of the optical path with single function cannot meet the current situation.
SUMMERY OF THE UTILITY MODEL
In order to overcome the above-mentioned defect of prior art, the embodiment of the utility model provides a technical problem that will solve provides a multichannel light protection and wavelength division multiplexing and is used for integrative semi-active module, and it can compatible multiunit wavelength division, realizes that light switching and control are unified, and each way function mutually, can not interfere with each other.
The embodiment of the utility model provides a concrete technical scheme is:
a multi-path optical protection and wavelength division multiplexing integrated semi-active module, comprising:
a housing; a plurality of independent light transmission and protection units mounted in the housing, each of the light transmission and protection units comprising:
a first fiber coupler; a second fiber coupler;
the optical switch is respectively connected with the first optical fiber coupler and the second optical fiber coupler;
the seventh photoelectric detector is connected with the first optical fiber coupler; the eighth photoelectric detector is connected with the second optical fiber coupler;
a first wavelength division multiplexer, a second wavelength division multiplexer, a third wavelength division multiplexer, a fourth wavelength division multiplexer, a fifth wavelength division multiplexer and a sixth wavelength division multiplexer which are respectively connected with the optical switch; the first photoelectric detector is connected with the first wavelength division multiplexer; the second photoelectric detector is connected with the second wavelength division multiplexer; a third photodetector connected to the third wavelength division multiplexer; a fourth photodetector connected to the fourth wavelength division multiplexer; a fifth photodetector connected to the fifth wavelength division multiplexer; a sixth photodetector connected to the sixth wavelength division multiplexer; a first interface connected to the first photodetector; a second interface connected to the second photodetector; a third interface connected to the third photodetector; a fourth interface connected to the fourth photodetector; a fifth interface connected to the fifth photodetector; a sixth interface connected to the sixth photodetector; a seventh interface connected to the seventh photodetector; an eighth interface connected to the eighth photodetector;
a controller connected to the optical switch, the first photodetector, the second photodetector, the third photodetector, the fourth photodetector, the fifth photodetector, the sixth photodetector, the seventh photodetector, and the eighth photodetector; the fourth photoelectric detector, the fifth photoelectric detector, the sixth photoelectric detector, the seventh photoelectric detector and the eighth photoelectric detector convert received optical signals into electric signals and send the electric signals to the controller, and the controller controls the connection state of the optical switch or gives an alarm based on the electric signals.
Preferably, when the electrical signals sent by the fourth photodetector, the fifth photodetector and the sixth photodetector to the controller exceed a set threshold, the controller sends an alarm.
Preferably, when an optical signal input from the fourth interface, the fifth interface, or the sixth interface reaches the seventh photodetector through the first optical fiber coupler to become an electrical signal exceeding a protection current, the controller controls the optical switch to be switched to the fourth wavelength division multiplexer, the fifth wavelength division multiplexer, or the sixth wavelength division multiplexer to communicate with the second optical fiber coupler.
Preferably, the first fiber coupler connects the output end of 98% of the light with the optical switch, and the first fiber coupler connects the output end of 2% of the light with the seventh photodetector.
Preferably, the first wavelength division multiplexer is used for filtering out 1291nm of light; the second wavelength division multiplexer is used for filtering out light of 1331nm, and the third wavelength division multiplexer is used for filtering out light of 1371 nm.
Preferably, the first photodetector, the second photodetector, the third photodetector, the fourth photodetector, the fifth photodetector, and the sixth photodetector are filter photodetectors.
Preferably, when an electrical signal which is changed from the seventh interface to the seventh photodetector through the first optical fiber coupler so as to reach the seventh photodetector does not exceed a protection current, the controller controls the optical switch to be switched to the first wavelength division multiplexer, the second wavelength division multiplexer, and the third wavelength division multiplexer to be communicated with the first optical fiber coupler.
Preferably, the fourth wavelength division multiplexer is used for filtering out the light of 1271 nm; the fifth wavelength division multiplexer is used for filtering out 1311nm light, and the sixth wavelength division multiplexer is used for filtering out 1351nm light.
Preferably, when an electrical signal which is changed from the eighth interface to the eighth photodetector through the second optical fiber coupler does not exceed a protection current, the controller controls the optical switch to be switched to the fourth wavelength division multiplexer, the fifth wavelength division multiplexer, and the sixth wavelength division multiplexer to be communicated with the second optical fiber coupler.
Preferably, the second fiber coupler connects the output end of 98% of the light to the optical switch, and the second fiber coupler connects the output end of 2% of the light to the eighth photodetector.
The technical scheme of the utility model following beneficial effect that is showing has:
when the optical signal is inputted into the multi-path optical protection and wavelength division multiplexing integrated semi-active module from the seventh interface, the optical signal is separated by the first optical fiber coupler and detected by the seventh photoelectric detector, and when the requirement is met, the optical switch is switched on, so that the other part of the optical signal separated by the first optical fiber coupler is transmitted to the following first wavelength division multiplexer, second wavelength division multiplexer, third wavelength division multiplexer, thereby filtering out the light with three different wavelengths, and respectively passing through the first photoelectric detector, the second photoelectric detector and the third photoelectric detector, if the optical signals respectively detected by the first photodetector, the second photodetector and the third photodetector do not meet the requirements, and alarming through the controller, and outputting through the first interface, the second interface and the third interface if the requirements are met. When different optical signals are respectively input from the fourth interface, the fifth interface and the sixth interface, the optical signals are respectively output through the fourth photoelectric detector, the fifth photoelectric detector and the sixth photoelectric detector, if the optical signals respectively detected by the fourth photoelectric detector, the fifth photoelectric detector and the sixth photoelectric detector do not meet requirements, an alarm is given through the controller, if the optical signals meet the requirements, the optical signals are respectively output to the optical switch through the fourth wavelength division multiplexer, the fifth wavelength division multiplexer and the sixth wavelength division multiplexer and then transmitted to the first optical fiber coupler, the optical signals are separated through the first optical fiber coupler and are detected through the seventh photoelectric detector, and when the requirements are met, the other part of the optical signals separated through the first optical fiber coupler is transmitted to the seventh interface for output; when the requirements are not met, the optical switch is switched to the second optical fiber coupler to be connected with the fourth wavelength division multiplexer, the fifth wavelength division multiplexer and the sixth wavelength division multiplexer, and at the moment, the optical signal is output or input from the eighth interface. Can strengthen equipment stability through above-mentioned structure, output light signal when the light source is too strong, cause equipment unable during operation, switch it to another circuit, avoid communication equipment to shut down. Simultaneously, this application can monitor each light signal, and when the light signal unsatisfied the requirement, it can send out the warning in order to ensure the smooth operation behind the whole device. In addition, each optical transmission and protection unit is independent, so that a client can directly access multiple groups of optical signals into the device at the same time, wherein any optical signal has a problem, and the device can judge to realize the random switching combination of multiple groups of optical paths. Certainly, a customer can also use part of the optical transmission and protection units, the rest of the optical transmission and protection units can be used as standby optical paths, when a certain optical transmission and protection unit has a problem, quick switching can be performed, and time and cost waste caused by dismantling and replacing important parts is avoided.
Specific embodiments of the present invention are disclosed in detail with reference to the following description and the accompanying drawings, which specify the manner in which the principles of the invention may be employed. It should be understood that the embodiments of the present invention are not so limited in scope. The embodiments of the invention include many variations, modifications and equivalents within the spirit and scope of the appended claims. Features that are described and/or illustrated with respect to one embodiment may be used in the same way or in a similar way in one or more other embodiments, in combination with or instead of the features of the other embodiments.
Drawings
The drawings described herein are for illustration purposes only and are not intended to limit the scope of the present disclosure in any way. In addition, the shapes, the proportional sizes, and the like of the respective members in the drawings are merely schematic for helping the understanding of the present invention, and do not specifically limit the shapes, the proportional sizes, and the like of the respective members of the present invention. The skilled person in the art can, under the teaching of the present invention, choose various possible shapes and proportional dimensions to implement the invention according to the specific situation.
Fig. 1 is a schematic structural diagram of a multi-path optical protection and wavelength division multiplexing integrated semi-active module according to an embodiment of the present invention.
Reference numerals of the above figures:
1. a housing; 2. an optical transmission and protection unit; 3. a first fiber coupler; 4. a second fiber coupler; 5. an optical switch; 6. a seventh photodetector; 7. an eighth photodetector; 8. a first wavelength division multiplexer; 9. a second wavelength division multiplexer; 10. a third wavelength division multiplexer; 11. a fourth wavelength division multiplexer; 12. a fifth wavelength division multiplexer; 13. a sixth wavelength division multiplexer; 14. a first photodetector; 15. a second photodetector; 16. a third photodetector; 17. a fourth photodetector; 18. a fifth photodetector; 19. a sixth photodetector; 20. a first interface; 21. a second interface; 22. a third interface; 23. a fourth interface; 24. a fifth interface; 25. a sixth interface; 26. a seventh interface; 27. and an eighth interface.
Detailed Description
The details of the present invention can be more clearly understood with reference to the accompanying drawings and the description of the embodiments of the present invention. However, the specific embodiments of the present invention described herein are for the purpose of explanation only, and should not be construed as limiting the invention in any way. Given the teachings of the present invention, the skilled person can conceive of any possible variants based on the invention, which should all be considered as belonging to the scope of the invention. It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "mounted," "connected," and "connected" are to be construed broadly and may include, for example, mechanical or electrical connections, communications between two elements, direct connections, indirect connections through intermediaries, and the like. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
In order to be compatible with multiunit wavelength division, realize that light switches and control are unified, and each way functions mutually, can not interfere with each other, provided a multichannel light protection and wavelength division multiplexing in this application half active module integrative, figure 1 does the utility model discloses in the embodiment multichannel light protection and wavelength division multiplexing are in the principle structure chart of half active module integrative, as shown in figure 1, multichannel light protection and wavelength division multiplexing are in half active module integrative can include: a plurality of independent optical transmission and protection units 2, each optical transmission and protection unit 2 comprising: a first fiber coupler 3; a second fiber coupler 4; an optical switch 5 connected to the first optical fiber coupler 3 and the second optical fiber coupler 4, respectively; a seventh photodetector 6 connected to the first fiber coupler 3; an eighth photodetector 7 connected to the second fiber coupler 4; a first wavelength division multiplexer 8, a second wavelength division multiplexer 9, a third wavelength division multiplexer 10, a fourth wavelength division multiplexer 11, a fifth wavelength division multiplexer 12 and a sixth wavelength division multiplexer 13 respectively connected to the optical switch 5; a first photodetector 14 connected to the first wavelength division multiplexer 8; a second photodetector 15 connected to the second wavelength division multiplexer 9; a third photodetector 16 connected to the third wavelength division multiplexer 10; a fourth photodetector 17 connected to the fourth wavelength division multiplexer 11; a fifth photodetector 18 connected to the fifth wavelength division multiplexer 12; a sixth photodetector 19 connected to the sixth wavelength division multiplexer 13; a first interface 20 connected to the first photodetector 14; a second interface 21 connected to the second photodetector 15; a third interface 22 connected to the third photodetector 16; a fourth interface 23 connected to the fourth photodetector 17; a fifth interface 24 connected to the fifth photodetector 18; a sixth interface 25 connected to the sixth photodetector 19; a seventh interface 26 connected to the seventh photodetector 6; an eighth interface 27 connected to the eighth photodetector 7; the controller is connected with the optical switch 5, the first photoelectric detector 14, the second photoelectric detector 15, the third photoelectric detector 16, the fourth photoelectric detector 17, the fifth photoelectric detector 18, the sixth photoelectric detector 19, the seventh photoelectric detector 6 and the eighth photoelectric detector 7; the fourth photoelectric detector 17, the fifth photoelectric detector 18, the sixth photoelectric detector 19, the seventh photoelectric detector 6 and the eighth photoelectric detector 7 convert received optical signals into electric signals and send the electric signals to the controller, and the controller controls the communication state of the optical switch 5 or gives an alarm based on the electric signals.
When an optical signal is input into the multi-path optical protection and wavelength division multiplexing integrated semi-active module from the seventh interface 26, the optical signal is separated through the first optical fiber coupler 3, and is detected through the seventh photoelectric detector 6, when the requirements are met, the optical switch 5 is turned on, so that the other part of the optical signal separated through the first optical fiber coupler 3 is transmitted to the following first wavelength division multiplexer 8, the second wavelength division multiplexer 9 and the third wavelength division multiplexer 10, so that light with three different wavelengths is filtered out, and is respectively transmitted through the first photoelectric detector 14, the second photoelectric detector 15 and the third photoelectric detector 16, if the optical signals detected by the first photoelectric detector 14, the second photoelectric detector 15 and the third photoelectric detector 16 do not meet the requirements, an alarm is given through the controller, and if the requirements are met, the optical signals are respectively transmitted through the first interface 20, the second interface, the third interface, the optical signal is transmitted through the second photoelectric detector 15 and the third photoelectric detector 16, A second interface 21 and a third interface 22. When different optical signals are input from the fourth interface 23, the fifth interface 24 and the sixth interface 25, respectively, the optical signals respectively detected by the fourth photodetector 17, the fifth photodetector 18 and the sixth photodetector 19 do not meet requirements, an alarm is given through the controller, if the optical signals respectively detected by the fourth photodetector 17, the fifth photodetector 18 and the sixth photodetector 19 do not meet requirements, the optical signals are output to the optical switch 5 through the fourth wavelength division multiplexer 11, the fifth wavelength division multiplexer 12 and the sixth wavelength division multiplexer 13 respectively, and then are transmitted to the first optical fiber coupler 3, the optical signals are separated through the first optical fiber coupler 3, the optical signals are detected through the seventh photodetector 6, and when the requirements are met, the other part of the optical signals separated through the first optical fiber coupler 3 is transmitted to the seventh interface 26 for output; when the requirement is not satisfied, the optical switch 5 is switched to connect the second optical fiber coupler 4 with the fourth wavelength division multiplexer 11, the fifth wavelength division multiplexer 12 and the sixth wavelength division multiplexer 13, and at this time, the optical signal is output or input from the eighth interface 27. Can strengthen equipment stability through above-mentioned structure, output light signal when the light source is too strong, cause equipment unable during operation, switch it to another circuit, avoid communication equipment to shut down. Simultaneously, this application can monitor each light signal, and when the light signal unsatisfied the requirement, it can send out the warning in order to ensure the smooth operation behind the whole device. In addition, each optical transmission and protection unit 2 is independent, so that a client can directly access multiple groups of optical signals into the device at the same time, wherein any optical signal has a problem, and the device can judge to realize any switching combination of multiple groups of optical paths. Certainly, a customer can also use part of the optical transmission and protection units 2, the rest of the optical transmission and protection units 2 can be used as spare optical paths, and when a certain optical transmission and protection unit 2 has a problem, quick switching can be performed, so that time and cost waste caused by dismantling and replacing important parts is avoided.
As shown in fig. 1, the multiplex optical protection and wavelength division multiplexing integrated semi-active module includes a housing 1 and a plurality of independent optical transmission and protection units 2 installed in the housing 1. In the present embodiment, the number of the independent optical transmission and protection units 2 is 3, so that the semi-active module can be divided into three groups of optical paths in total, and each optical path formed by the optical transmission and protection units 2 can realize independent transmission and optical protection, and one of the optical transmission and protection units 2 is explained and illustrated below.
As shown in fig. 1, one optical transmission and protection unit 2 may include a first optical fiber coupler 3, a second optical fiber coupler 4, an optical switch 5, a first wavelength division multiplexer 8, a second wavelength division multiplexer 9, a third wavelength division multiplexer 10, a fourth wavelength division multiplexer 11, a fifth wavelength division multiplexer 12, a sixth wavelength division multiplexer 13, a first photodetector 14, a second photodetector 15, a third photodetector 16, a fourth photodetector 17, a fifth photodetector 18, a sixth photodetector 19, a first interface 20, a second interface 21, a third interface 22, a fourth interface 23, a fifth interface 24, a sixth interface 25, a seventh interface 26, an eighth interface 27, and a controller.
The first optical fiber coupler 3 is connected with the seventh interface 26, the seventh photodetector 6 is connected with the first optical fiber coupler 3, and the optical switch 5 is connected with the first optical fiber coupler 3. Specifically, the first fiber coupler 3 connects the output end of 98% of the light to the optical switch 5, and the first fiber coupler 3 connects the output end of 2% of the light to the seventh photodetector 6. When there is an optical signal transmitted to the first optical fiber coupler 3 at the optical switch 5 or the seventh interface 26, the seventh photodetector 6 converts the received optical signal into an electrical signal and sends the electrical signal to the controller, and when the electrical signal does not exceed the protection current, the optical switch 5 switches on the optical path, that is, the controller controls the optical switch 5 to switch to the first wavelength division multiplexer 8, the second wavelength division multiplexer 9, and the third wavelength division multiplexer 10 to communicate with the first optical fiber coupler 3.
As shown in fig. 1, a first wavelength division multiplexer 8, a second wavelength division multiplexer 9, a third wavelength division multiplexer 10, a fourth wavelength division multiplexer 11, a fifth wavelength division multiplexer 12, and a sixth wavelength division multiplexer 13 are connected to the optical switch 5, respectively. The first photodetector 14, the second photodetector 15, the third photodetector 16, the fourth photodetector 17, the fifth photodetector 18, and the sixth photodetector 19 are sequentially connected to the first wavelength division multiplexer 8, the second wavelength division multiplexer 9, the third wavelength division multiplexer 10, the fourth wavelength division multiplexer 11, the fifth wavelength division multiplexer 12, and the sixth wavelength division multiplexer 13, respectively, and the first interface 20, the second interface 21, the third interface 22, the fourth interface 23, the fifth interface 24, and the sixth interface 25 are sequentially connected to the first photodetector 14, the second photodetector 15, the third photodetector 16, the fourth photodetector 17, the fifth photodetector 18, and the sixth photodetector 19, respectively. The controller is connected with the optical switch 5, the first photoelectric detector 14, the second photoelectric detector 15, the third photoelectric detector 16, the fourth photoelectric detector 17, the fifth photoelectric detector 18, the sixth photoelectric detector 19 and the seventh photoelectric detector 6. The first photodetector 14, the second photodetector 15, the third photodetector 16, the fourth photodetector 17, the fifth photodetector 18, and the sixth photodetector 19 are filter type photodetectors.
An optical signal output from the 98% optical output end of the first optical fiber coupler 3 passes through the optical switch 5 and is then transmitted to the first wavelength division multiplexer 8, the second wavelength division multiplexer 9, and the third wavelength division multiplexer 10. The first wavelength division multiplexer 8 is used for filtering out 1291nm of light; the second wavelength division multiplexer 9 is used to filter out 1331nm light and the third wavelength division multiplexer 10 is used to filter out 1371nm light. The filtered light enters the first photodetector 14, the second photodetector 15, and the third photodetector 16, respectively, and a majority of optical signals (e.g., 95%) are directly output from the first photodetector 14, the second photodetector 15, and the third photodetector 16, and are transmitted to the first interface 20, the second interface 21, and the third interface 22 as main optical signals, respectively. A small number of optical signals (for example, 5%) are detected by the first photodetector 14, the second photodetector 15, and the third photodetector 16, respectively, the photodetectors convert the received small number of optical signals into electrical signals, and send the electrical signals to the controller, and when the electrical signals sent to the controller exceed a set threshold, the controller sends an alarm to play a monitoring role.
As shown in fig. 1, when the optical signals input by the fourth interface 23, the fifth interface 24, and the sixth interface 25 are respectively transmitted to the fourth photodetector 17, the fifth photodetector 18, and the sixth photodetector 19, most of the optical signals are directly transmitted to the corresponding wavelength division multiplexers through the photodetectors for wavelength division multiplexing, and are transmitted as main optical signals, and the fourth wavelength division multiplexer 11 is configured to filter out the 1271nm light; the fifth wavelength division multiplexer 12 is used to filter out 1311nm light, and the sixth wavelength division multiplexer 13 is used to filter out 1351nm light. A minority of optical signals are detected by the fourth photoelectric detector 17, the fifth photoelectric detector 18 and the sixth photoelectric detector 19 respectively, the photoelectric detectors convert the received minority of optical signals into electric signals and send the electric signals to the controller, and when the electric signals sent to the controller exceed a set threshold value, the controller sends an alarm to play a monitoring role.
The main optical signal enters the optical switch 5 after passing through the fourth wavelength division multiplexer 11, the fifth wavelength division multiplexer 12 and the sixth wavelength division multiplexer 13, and is transmitted to the first optical fiber coupler 3. Because the first optical fiber coupler 3 connects the output end of 2% of light with the seventh photoelectric detector 6, the seventh photoelectric detector 6 converts the received optical signal into an electrical signal and sends the electrical signal to the controller, when the electrical signal does not exceed the protection current, the optical switch 5 is switched on the optical path, that is, the controller controls the optical switch 5 to be switched to the first wavelength division multiplexer 8, the second wavelength division multiplexer 9, the third wavelength division multiplexer 10 to be communicated with the first optical fiber coupler 3. The optical signal passes through the first fiber coupler 3 and is output from the seventh interface 26.
As shown in fig. 1, the second fiber coupler 4 is connected to the optical switch 5, the eighth photodetector 7 is connected to the second fiber coupler 4, and the eighth interface 27 is connected to the eighth photodetector 7. The eighth photodetector 7 is connected to the controller. The second fiber coupler 4 connects the output of 98% of the light to the optical switch 5 and the second fiber coupler 4 connects the output of 2% of the light to the eighth photodetector 7.
When the optical signal input from the fourth interface 23, the fifth interface 24 or the sixth interface 25 reaches the seventh photodetector 6 through the first optical fiber coupler 3 to become an electrical signal exceeding the protection current, the controller controls the optical switch 5 to switch to the fourth wavelength division multiplexer 11, the fifth wavelength division multiplexer 12 and the sixth wavelength division multiplexer 13 to communicate with the second optical fiber coupler 4. The optical signal passes through the optical switch 5 and the second fiber coupler 4 and then is output from the eighth interface 27.
When the electrical signal which is changed from the eighth interface 27 to the eighth photodetector 7 through the second optical fiber coupler 4 does not exceed the protection current, the controller controls the optical switch 5 to switch to the fourth wavelength division multiplexer 11, the fifth wavelength division multiplexer 12, and the sixth wavelength division multiplexer 13 to communicate with the second optical fiber coupler 4.
All articles and references disclosed, including patent applications and publications, are hereby incorporated by reference for all purposes. The term "consisting essentially of …" describing a combination shall include the identified element, ingredient, component or step as well as other elements, ingredients, components or steps that do not materially affect the basic novel characteristics of the combination. The use of the terms "comprising" or "including" to describe combinations of elements, components, or steps herein also contemplates embodiments that consist essentially of such elements, components, or steps. By using the term "may" herein, it is intended to indicate that any of the described attributes that "may" include are optional. A plurality of elements, components, parts or steps can be provided by a single integrated element, component, part or step. Alternatively, a single integrated element, component, part or step may be divided into separate plural elements, components, parts or steps. The disclosure of "a" or "an" to describe an element, ingredient, component or step is not intended to foreclose other elements, ingredients, components or steps.
The above embodiments are only embodiments of the present invention, and although the embodiments of the present invention are disclosed as above, the contents are only embodiments adopted for facilitating understanding of the present invention, and are not intended to limit the present invention. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A multi-path optical protection and wavelength division multiplexing integrated semi-active module is characterized in that the multi-path optical protection and wavelength division multiplexing integrated semi-active module comprises:
a housing; a plurality of independent light transmission and protection units mounted in the housing, each of the light transmission and protection units comprising:
a first fiber coupler; a second fiber coupler;
the optical switch is respectively connected with the first optical fiber coupler and the second optical fiber coupler;
the seventh photoelectric detector is connected with the first optical fiber coupler; the eighth photoelectric detector is connected with the second optical fiber coupler;
a first wavelength division multiplexer, a second wavelength division multiplexer, a third wavelength division multiplexer, a fourth wavelength division multiplexer, a fifth wavelength division multiplexer and a sixth wavelength division multiplexer which are respectively connected with the optical switch; the first photoelectric detector is connected with the first wavelength division multiplexer; the second photoelectric detector is connected with the second wavelength division multiplexer; a third photodetector connected to the third wavelength division multiplexer; a fourth photodetector connected to the fourth wavelength division multiplexer; a fifth photodetector connected to the fifth wavelength division multiplexer; a sixth photodetector connected to the sixth wavelength division multiplexer; a first interface connected to the first photodetector; a second interface connected to the second photodetector; a third interface connected to the third photodetector; a fourth interface connected to the fourth photodetector; a fifth interface connected to the fifth photodetector; a sixth interface connected to the sixth photodetector; a seventh interface connected to the seventh photodetector; an eighth interface connected to the eighth photodetector;
a controller connected to the optical switch, the first photodetector, the second photodetector, the third photodetector, the fourth photodetector, the fifth photodetector, the sixth photodetector, the seventh photodetector, and the eighth photodetector; the fourth photoelectric detector, the fifth photoelectric detector, the sixth photoelectric detector, the seventh photoelectric detector and the eighth photoelectric detector convert received optical signals into electric signals and send the electric signals to the controller, and the controller controls the connection state of the optical switch or gives an alarm based on the electric signals.
2. The integrated multi-path optical protection and wavelength division multiplexing semi-active module of claim 1, wherein the controller sends an alarm when the electrical signals sent by the fourth photodetector, the fifth photodetector, and the sixth photodetector to the controller exceed a set threshold.
3. The integrated multi-channel optical protection and wavelength division multiplexing semi-active module according to claim 1, wherein when an optical signal input from the fourth interface, the fifth interface or the sixth interface passes through the first optical fiber coupler and reaches the seventh photodetector, and an electrical signal becomes more than a protection current, the controller controls the optical switch to be switched to the fourth wavelength division multiplexer, the fifth wavelength division multiplexer and the sixth wavelength division multiplexer to communicate with the second optical fiber coupler.
4. The integrated multi-path unprotected-wavelength-division-multiplexed semi-active module of claim 1 wherein the first fiber coupler connects 98% of the light output to the optical switch and the first fiber coupler connects 2% of the light output to the seventh photodetector.
5. The integrated multi-path optical protection and wavelength division multiplexing semi-active module of claim 1, wherein the first wavelength division multiplexer is configured to filter 1291nm of light; the second wavelength division multiplexer is used for filtering out light of 1331nm, and the third wavelength division multiplexer is used for filtering out light of 1371 nm.
6. The integrated multi-channel photoprotection and wavelength division multiplexing semi-active module of claim 1, wherein the first, second, third, fourth, fifth, and sixth photodetectors are filtered photodetectors.
7. The integrated multi-path optical protection and wavelength division multiplexing semi-active module of claim 1, wherein when the electrical signal that has become from the seventh interface to the seventh photo detector through the first fiber coupler does not exceed a protection current, the controller controls the optical switch to the first wavelength division multiplexer, the second wavelength division multiplexer, and the third wavelength division multiplexer to communicate with the first fiber coupler.
8. The integrated multi-path optical protection and wavelength division multiplexing semi-active module of claim 1, wherein the fourth wavelength division multiplexer is configured to filter out 1271nm light; the fifth wavelength division multiplexer is used for filtering out 1311nm light, and the sixth wavelength division multiplexer is used for filtering out 1351nm light.
9. The integrated multi-path optical protection and wavelength division multiplexing semi-active module of claim 1, wherein when the electrical signal that has become from the eighth interface to the eighth photodetector through the second fiber coupler does not exceed a protection current, the controller controls the optical switch to the fourth wavelength division multiplexer, the fifth wavelength division multiplexer, the sixth wavelength division multiplexer to communicate with the second fiber coupler.
10. The integrated multi-path unprotected-wavelength-division-multiplexed semi-active module of claim 1 wherein the second fiber coupler connects 98% of the light output to the optical switch, and the second fiber coupler connects 2% of the light output to the eighth photodetector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021118833.5U CN212435865U (en) | 2020-06-17 | 2020-06-17 | Multipath optical protection and wavelength division multiplexing integrated semi-active module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021118833.5U CN212435865U (en) | 2020-06-17 | 2020-06-17 | Multipath optical protection and wavelength division multiplexing integrated semi-active module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212435865U true CN212435865U (en) | 2021-01-29 |
Family
ID=74280446
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021118833.5U Active CN212435865U (en) | 2020-06-17 | 2020-06-17 | Multipath optical protection and wavelength division multiplexing integrated semi-active module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212435865U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115430937A (en) * | 2022-11-08 | 2022-12-06 | 苏州创鑫激光科技有限公司 | Laser device and laser processing equipment |
-
2020
- 2020-06-17 CN CN202021118833.5U patent/CN212435865U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115430937A (en) * | 2022-11-08 | 2022-12-06 | 苏州创鑫激光科技有限公司 | Laser device and laser processing equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101854566B (en) | Passive optical network protection method and active/standby switch device and system | |
| CN112260794A (en) | 5G forward-transmission semi-active WDM service monitoring system and monitoring method thereof | |
| EP1239622A3 (en) | Optical path cross-connect and optical wavelenght multiplexing diversity communication system using the same | |
| CN106452571B (en) | Electric power terminal communication access net topological relation faulty section determines and analysis method | |
| US9276690B2 (en) | Distributed electrical cross device, and system and method thereof for implementing sub-network connection (SNC) cascade protection | |
| CN101237254A (en) | Optical fiber protection inverse device, method and passive optical network system with the device | |
| CN101651495A (en) | Method and device for protecting trunk fibers of wavelength division multiplex (WDM) passive optical network (PON) | |
| CN210274104U (en) | 5G forwarding equipment based on semi-passive WDM technology | |
| CN212435865U (en) | Multipath optical protection and wavelength division multiplexing integrated semi-active module | |
| CN103763161A (en) | Tri-network integration access module and control method thereof | |
| JP2003298540A (en) | Data transmission system, transmission method and node for optical network supervisory control signal | |
| CN107666362B (en) | Power communication multi-service isolation access system and access method | |
| CN107646175A (en) | A kind of optical monitoring signal device of Wave division multiplexing passive optical network | |
| CN203859769U (en) | Multi-wavelength isolating optical switch device of process layer of intelligent transformer station | |
| CN101984566A (en) | Method and network management system for complex optical network protection switching | |
| CN104393914A (en) | A multiplex route recovering method for an optical fiber differential protection device | |
| CN101166069A (en) | Method and system for automatic switching of optical module in optical transmission network | |
| CN112953641A (en) | OPEN-WDM device and control method | |
| CN101360008A (en) | Method for transmitting alarm on transmission plane when alarm generated by service | |
| CN100488083C (en) | Service scheduling device in optical communication network and method thereof | |
| CN211908818U (en) | CWDM structure and system for distributed base station optical fiber transmission | |
| CN212969653U (en) | 5G optical signal transmission device and system | |
| CN201213260Y (en) | Fast alarm device and circuit used for automatic protection switch | |
| Bao et al. | WDM switch technology application in smart substation communication network | |
| CN102412901B (en) | Optical signal transmission method in a kind of optical-fiber network and device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |