CN2914114Y - Optical module on optical wavelength division multiplex device - Google Patents
Optical module on optical wavelength division multiplex device Download PDFInfo
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- CN2914114Y CN2914114Y CN 200620007755 CN200620007755U CN2914114Y CN 2914114 Y CN2914114 Y CN 2914114Y CN 200620007755 CN200620007755 CN 200620007755 CN 200620007755 U CN200620007755 U CN 200620007755U CN 2914114 Y CN2914114 Y CN 2914114Y
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- optical
- wavelength
- fracture
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- division multiplex
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Abstract
The utility model discloses a light module of a light wavelength division multiplexer, consisting of a cross connection matrix, an input kerf, an output kerf and a management control unit. The input end of the output kerf is connected with the output end of the input kerf. The management control unit is connected with the output end of the input kerf and constitutes the light module of the light wavelength division multiplexer. Division multiplex could be realized for 2.5G by the module.
Description
Technical field:
The present invention relates to a kind of equipment of optical wavelength-division multiplex, be specifically related to the optical module in a kind of 2.5G optical wavelength-division multiplex equipment.
Background technology:
In recent years, optical communication technique obtains develop rapidly, because legacy network lacks operability at photosphere, people are badly in need of realizing optimization, route, protection, the restore funcitons in light territory, so people have just proposed the optical wavelength-division multiplex theory, i.e. this notion of optical cross connect (OXC); Optical cross-connection equipment is equivalent to a module, it has the optical fiber interface of a plurality of standards, it can controllably be connected to arbitrary fiber-optic signal of input end (or its each wavelength signals) in arbitrary optical fiber (or its each wavelength) of output terminal and go, and this process is to carry out in the light territory fully.By using optical cross-connection equipment, can solve the electronic bottleneck problem in existing digital crossover connection (DXC) equipment effectively.
Summary of the invention:
Technical matters to be solved by this invention provides the optical module in a kind of 2.5G optical wavelength-division multiplex equipment, and this module has the function with the 2.5G optical wavelength-division multiplex.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is: the optical module in the 2.5G optical wavelength-division multiplex equipment mainly is made up of modules such as optical cross-connect matrix (switching stage), input fracture (expansion level), output fracture (concentration stage), management control units.
Optical module in a kind of 2.5G optical wavelength-division multiplex equipment is made up of modules such as optical cross-connect matrix (switching stage), input fracture (expansion level), output fracture (concentration stage), management control units;
E
1, E
3Serial connection, C
6, C
7Be connected in series the latter two parallel connections, and and J
1Series connection constitutes optical cross-connect matrix (switching stage);
U
3A, R
4Series connection and U
2BSeries connection, U
3B, D
2Series connection, U
3C, D
3Series connection and and R
10, R
11In parallel constitute filtering circuit with by R
5, R
6, R
7, C
4, U
3D, R
8, R
9, C
5The on-off circuit that constitutes is connected in series and constitutes this input fracture (expansion level);
By R
1, U
2A, M
1, M
2, M
3, M
4The input end of the output fracture (concentration stage) that constitutes is connected with the output terminal of this input fracture (expansion level);
By R
2, R
3, C
3, E
2, L
1, L
2, C
2, U
1, D
1The management control unit that constitutes is connected with the output terminal of input fracture (expansion level).
The OXC node decomposes the WDM signal decomposing on space or the wavelength domain earlier, obtains carrying out cross connection again after the simple single wavelength signals of one group of state.Expansion level network is finished the demultiplexing function of input end WDM signal, concentrate the end network to carry out multiplexing again to single wavelength signals at output terminal, the switching stage network is realized the full optical cross connect of wavelength signals on space or wavelength domain between expansion level and concentration stage.
The main performance index of OXC
1, be only to support wavelength channel (WP) still can support virtual wavelength path (VWP).Can provide the wavelength Conversion function according to OXC, optical channel be divided into wavelength channel and virtual wavelength path.Wavelength channel is meant that OXC does not have the wavelength Conversion function, and optical channel must use same wavelength in different optical fiber.Like this, in order to set up a wavelength channel, optical-fiber network must find a route, and in all optical fiber of this route, it is idle that a common wavelength is arranged.If can not find such route, will block.Virtual wavelength path is meant that OXC has the wavelength Conversion function, and optical channel can occupy different wavelength in different optical fiber, thereby improves the utilization factor of wavelength, has reduced blocking probability.
2, blocking performance: the blocking performance of exchange network is divided into three kinds of absolute clog-free type, the clog-free type of restructural and obstructive types.The OXC structure is preferably absolute clog-free type, but the optical channel quantity that need exchange when node is when bigger, and it is very complicated that decussate texture will become.The clog-free type of restructural is meant if do not dispose and will block through reasonable optimizing, but structure is simplified relatively.
3, link module: because communication service constantly increases, consider the construction cost of OXC simultaneously, we wish need not change the structure of existing OXC except increasing new module, just can increase the number of links of node, so just claim this structure to have link module.
4, wavelength modularity: if except increasing new module, need not change the structure of existing OXC, just can increase number of wavelengths multiplexing in every link, then claim this structure to have the wavelength modularity.Module performance has reflected the spatial spread ability of OXC.
5, broadcast transmission ability:, just claim this structure to have the broadcast transmission ability if the signal in the input optical channel can be broadcasted in the optical channel that sends to a plurality of outputs through behind the OXC.
6, the cost of cost: OXC mainly is made up of the photoswitch in the structure, multiplexing demultiplexing device, tunable optic filter and wavelength variations device.
Description of drawings:
Fig. 1 is the embodiment schematic diagram of the optical module in the 2.5G optical wavelength-division multiplex equipment provided by the invention;
Embodiment:
Optical module in a kind of 2.5G optical wavelength-division multiplex equipment is made up of modules such as optical cross-connect matrix (switching stage) 1, input fracture (expansion level) 2, output fracture (concentration stage) 3, management control units 4;
E
1, E
3Serial connection, C
6, C
7Be connected in series the latter two parallel connections, and and J
1Series connection constitutes optical cross-connect matrix (switching stage) 1;
U
3A, R
4Series connection and U
2BSeries connection, U
3B, D
2Series connection, U
3C, D
3Series connection and and R
10, R
11In parallel constitute filtering circuit with by R
5, R
6, R
7, C
4, U
3D, R
8, R
9, C
5The on-off circuit that constitutes is connected in series and constitutes this input fracture (expansion level) 2;
By R
1, U
2A, M
1, M
2, M
3, M
4The input end of the output fracture (concentration stage) 3 that constitutes is connected with the output terminal of this input fracture (expansion level) 2;
By R
2, R
3, C
3, E
2, L
1, L
2, C
2, U
1, D
1The management control unit 4 that constitutes is connected with the output terminal of input fracture (expansion level).
The OXC node decomposes the WDM signal decomposing on space or the wavelength domain earlier, obtains carrying out cross connection again after the simple single wavelength signals of one group of state.Expansion level network is finished the demultiplexing function of input end WDM signal, concentrate the end network to carry out multiplexing again to single wavelength signals at output terminal, the switching stage network is realized the full optical cross connect of wavelength signals on space or wavelength domain between expansion level and concentration stage.
The light exchange is had living space and is exchanged and two kinds of mechanism of wavelength exchange among the OXC.The device of implementation space exchange has various types of photoswitches, and they are finished on spatial domain into the function of exchange of holding out end.The device of realizing the wavelength exchange is meant various types of wavelength shifters, signal can be transformed on another wavelength from a wavelength.According to routing function mainly is that any device is realized, OXC is divided into based on the OXC of space exchange with based on the OXC of wavelength exchange.
For example: 3 optical fiber are arranged in the OXC structure based on space exchange, and 4 wavelength of every optical fiber multiplexing are if fiber count (N) and can analogizing when whenever increasing with the reuse wavelengths number (M) in the optical fiber if there is not wavelength shifter, therefore can only be supported wavelength channel.When business increases, when number of wavelengths increases, only need the switch matrix of increase respective numbers to get final product, therefore have the wavelength modularity.But switch matrix can not change with the change of I/O number of links, so do not have link module.Because when using Wavelength division multiplexer/demultiplexer, the light signal of an input can only be cross connected in the output optical channel uniquely, and can not broadcast transmission in many optical channels, therefore do not have the broadcast transmission ability.
The signal of each wavelength is multiplexed in the output link after realizing wavelength conversion through wavelength shifter again, therefore supports virtual wavelength path.The switch matrix has here just been decided after initial design capacity is determined, even portfolio hour can not reduce, so both there be not the wavelength modularity, does not also have link module.Because the arbitrary wavelength in arbitrary input link can exchange on arbitrary wavelength in arbitrary output link, therefore belongs to absolute clog-free type.
Also have in addition OXC structure based on space switching matrix and tunable optic filter, based on the OXC structure of dispensing coupled switch with based on OXC structure of parallel lambda switch or the like.
The existing WIXC structure of this texture ratio has some advantages.At first can realize in technology.Wavelength conversion is quite complicated completely, and when bandwidth of an optical fiber increased, the arbitrary wavelength of conversion of full light just became very difficult to another arbitrary wavelength, and the wavelength conversion in this structure is fixed, thereby is convenient to realize.On the other hand, among the WIXC, its controller must find an available wavelength, the output of fixed wave length transducer then.This quantity of information that just causes controller management is too big and limited by the tuning period of wavelength shifter swap time.And among this L-WIXC, avoided this tuning process.From considering economically, comprise tuning process and mean very big cost expense again.
Claims (4)
1, the optical module in a kind of optical wavelength-division multiplex equipment is characterized in that: be made up of modules such as optical cross-connect matrix, input fracture, output fracture, management control units;
E
1, E
3Serial connection, C
6, C
7Be connected in series the latter two parallel connections, and and J
1Series connection constitutes optical cross-connect matrix;
U
3A, R
4Series connection and U
2BSeries connection, U
3B, D
2Series connection, U
3C, D
3Series connection and and R
10, R
11In parallel constitute filtering circuit with by R
5, R
6, R
7, C
4, U
3D, R
8, R
9, C
5The on-off circuit that constitutes is connected in series and constitutes this input fracture;
By R
1, U
2A, M
1, M
2, M
3, M
4The input end of the output fracture that constitutes is connected with the output terminal of this input fracture;
By R
2, R
3, C
3, E
2, L
1, L
2, C
2, U
1, D
1The management control unit that constitutes is connected with the output terminal of input fracture;
The OXC node decomposes the WDM signal decomposing on space or the wavelength domain earlier, obtains carrying out cross connection again by management control unit after the simple single wavelength signals of one group of state.
2, the optical module in a kind of optical wavelength-division multiplex equipment as claimed in claim 1, it is characterized in that: optical cross-connect matrix is the switching stage optical cross-connect matrix.
3, the optical module in a kind of optical wavelength-division multiplex equipment as claimed in claim 1 is characterized in that: described input fracture is expansion level input fracture.
4, the optical module in a kind of optical wavelength-division multiplex equipment as claimed in claim 1 is characterized in that: described output fracture is a concentration stage output fracture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620007755 CN2914114Y (en) | 2006-03-10 | 2006-03-10 | Optical module on optical wavelength division multiplex device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620007755 CN2914114Y (en) | 2006-03-10 | 2006-03-10 | Optical module on optical wavelength division multiplex device |
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| Publication Number | Publication Date |
|---|---|
| CN2914114Y true CN2914114Y (en) | 2007-06-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200620007755 Expired - Lifetime CN2914114Y (en) | 2006-03-10 | 2006-03-10 | Optical module on optical wavelength division multiplex device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105099560A (en) * | 2015-07-28 | 2015-11-25 | 上海交通大学 | Non-blocking extended system and method based on multiple non-intersected unidirectional fiber ring networks |
-
2006
- 2006-03-10 CN CN 200620007755 patent/CN2914114Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105099560A (en) * | 2015-07-28 | 2015-11-25 | 上海交通大学 | Non-blocking extended system and method based on multiple non-intersected unidirectional fiber ring networks |
| CN105099560B (en) * | 2015-07-28 | 2018-03-23 | 上海交通大学 | Clog-free extension system and method based on multiple disjoint one-way optical fiber looped networks |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: BEIJING QIANXI HENGYE TECHNOLOGY CO., LTD. Free format text: FORMER NAME OR ADDRESS: BEIJING SHULONG TECHNOLOGY DEVELOPMENT CO., LTD. |
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| CP03 | Change of name, title or address |
Address after: 100083 Beijing city Haidian District Yihai Qinghua East Road No. 16 building room 1605 Patentee after: Beijing Qianxi Hengye Science and Technology Development Co., Ltd., Beijing Address before: 100101 No. 8 South Beach, Beijing, Chaoyang District Patentee before: Shulong Science and Technology Development Co., Ltd., Beijing |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20090109 Address after: Beijing City, Haidian District Yihai Qinghua East Road No. 16 building room 1606, zip code: 100083 Patentee after: Beijing Lanshan Industrial Technology Co., Ltd. Address before: Beijing City, Haidian District Yihai Qinghua East Road No. 16 building room 1605, zip code: 100083 Patentee before: Beijing Qianxi Hengye Science and Technology Development Co., Ltd., Beijing |
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| ASS | Succession or assignment of patent right |
Owner name: BEIJING LANSHAN JIYE SCIENCE CO., LTD. Free format text: FORMER OWNER: BEIJING QIANXI HENGYE TECHNOLOGY CO., LTD. Effective date: 20090109 |
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| C56 | Change in the name or address of the patentee |
Owner name: BEIJING BLUE MOUNTAINS TECHNOLOGY CO., LTD. Free format text: FORMER NAME: BEIJING BLUE MOUNTAIN FOUNDATION TECHNOLOGY CO., LTD. |
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| CP01 | Change in the name or title of a patent holder |
Address after: 100083 Beijing city Haidian District Yihai Qinghua East Road No. 16 building room 1606 Patentee after: BEIJING BLUE MOUNTAINS TECHNOLOGY CO., LTD. Address before: 100083 Beijing city Haidian District Yihai Qinghua East Road No. 16 building room 1606 Patentee before: Beijing Lanshan Industrial Technology Co., Ltd. |
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