CN203645689U - Novel bidirectional optical add-drop multiplexer (OADM) - Google Patents
Novel bidirectional optical add-drop multiplexer (OADM) Download PDFInfo
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- CN203645689U CN203645689U CN201420003693.5U CN201420003693U CN203645689U CN 203645689 U CN203645689 U CN 203645689U CN 201420003693 U CN201420003693 U CN 201420003693U CN 203645689 U CN203645689 U CN 203645689U
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- optical switch
- wave division
- dense wave
- division multipurpose
- wavelength division
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Abstract
The utility model discloses a novel bidirectional OADM. The common end of a first dense wavelength division multiplexing module is connected with a first external multiplexing port, the reflection end of the first dense wavelength division multiplexing module is connected with the reflection end of a second dense wavelength division multiplexing module, and the common end of the second dense wavelength division multiplexing module is connected with a second external multiplexing port. The first selection end of the first dense wavelength division multiplexing module and the first selection end of the second dense wavelength division multiplexing module are respectively connected with two branch ends of a first optical switch of a D1*2 optical switch, and the second selection end of the first dense wavelength division multiplexing module and the second selection end of the second dense wavelength division multiplexing module are respectively connected with two branch ends of a second optical switch of the D1*2 optical switch. The combination end of the first optical switch of the D1*2 optical switch is connected with a first external add/drop port, and the combination end of the second optical switch of the D1*2 optical switch is connected with a second external add/drop port. According to the utility model, the insert loss of the OADM can be effectively reduced, and the system reliability is improved.
Description
Technical field
The utility model relates to optical communication technique field, is specifically related to a kind of novel bi-directional light point add/drop multiplexer.
Background technology
Light point add/drop multiplexer (OADM) is all had place to show one's prowess in long distance line and metropolitan area network.In main line application, light point add/drop multiplexer is the preferred unit that has the intermediate node of upper and lower business.The information that optical add/drop multiplexer allows the different wave length signal of different optical-fiber networks only need to download at node in different place add drop multiplex is sent into treatment facility (comprising ATM switch, SDH switch and ip router), and do not need the information of this node processing directly to be passed through from this node by optical channel, thereby greatly improve the efficiency of node processing information, having overcome electric treatment node must wrap the shortcoming of processing to the IP of all arrival.
Traditional bi-directional light is divided add/drop multiplexer, and as shown in Figure 1, its elementary cell comprises 3 WDM(dense wave division multiplexers) module and 11 × 2 optical switch.The inside of the one WDM module and the 2nd WDM module includes 3 WDM devices, and the output of 2 WDM devices is and is connected on 2 inputs of the 3rd WDM device, and 2 WDM devices are λ
iand λ
jseparate wavelength-division, then through the 3rd WDM device, these two wavelength are combined and transfer to 1 × 2 optical switch.Select the λ of output A input or B input by 1 × 2 optical switch
iand λ
jlight signal.The 3rd WDM module comprises 2 WDM devices, and the input of 2 WDM devices is on 2 outputs that are connected in 1 × 2 optical switch in parallel, and its effect is the λ of 1 × 2 optical switch output
iand λ
jlight signal is divided into two-way transmission.But because traditional bi-directional light point add/drop multiplexer has been used 8 WDM devices simultaneously, therefore its insertion loss is large, system reliability is low.Utility model content
Technical problem to be solved in the utility model is to provide a kind of novel bi-directional light point add/drop multiplexer, and it can effectively reduce the insertion loss of OADM, improves the reliability of system.
For addressing the above problem, the utility model is achieved through the following technical solutions:
A kind of novel bi-directional light is divided add/drop multiplexer, and it is mainly made up of 2 dense wave division multipurpose modules and 1 D1 × 2 optical switch.The common port of the first dense wave division multipurpose module is connected with outside the first multiplexing port, the reflection end of the first dense wave division multipurpose module is connected with the reflection end of the second dense wave division multipurpose module, and the common port of the second dense wave division multipurpose module is connected with outside the second multiplexing port.The first selecting side of the first dense wave division multipurpose module is connected 2 points of terminals of first group of optical switch of D1 × 2 optical switch with the first selecting side branch of the second dense wave division multipurpose module, the second selecting side of the first dense wave division multipurpose module is connected 2 points of terminals of second group of optical switch of D1 × 2 optical switch with the second selecting side branch of the second dense wave division multipurpose module.The slotting port that divides of terminal and outside first that closes of first group of optical switch of D1 × 2 optical switch is connected, and the slotting port that divides of terminal and outside second that closes of second group of optical switch of D1 × 2 optical switch is connected.
The utility model only adopted 4 dense wave division multiplexers and 1 D1 × 2 optical switch realize bi-directional light divide insert point multiplexing; Compared with dividing add/drop multiplexer with traditional bi-directional light, save 4 dense wave division multiplexers, thereby effectively reduced the insertion loss of bi-directional light point add/drop multiplexer, effectively improved the reliability of system.; In addition, utilized D1 × 2 optical switch to realize two-way choice Add/drop wavelength function, there is the higher ratio of performance to price, had broad application prospects.
Accompanying drawing explanation
Fig. 1 is the principle schematic of traditional bi-directional light point add/drop multiplexer.
Fig. 2 is the principle schematic of the utility model bi-directional light point add/drop multiplexer.
Embodiment
A kind of novel bi-directional light is divided add/drop multiplexer, and as shown in Figure 2, it is mainly made up of 2 dense wave division multipurpose modules and 1 D1 × 2 optical switch.The common port of the first dense wave division multipurpose module is connected with outside the first multiplexing port, the reflection end of the first dense wave division multipurpose module is connected with the reflection end of the second dense wave division multipurpose module, and the common port of the second dense wave division multipurpose module is connected with outside the second multiplexing port.The first selecting side of the first dense wave division multipurpose module is connected 2 points of terminals of first group of optical switch of D1 × 2 optical switch with the first selecting side branch of the second dense wave division multipurpose module, the second selecting side of the first dense wave division multipurpose module is connected 2 points of terminals of second group of optical switch of D1 × 2 optical switch with the second selecting side branch of the second dense wave division multipurpose module.The slotting port that divides of terminal and outside first that closes of first group of optical switch of D1 × 2 optical switch is connected, and the slotting port that divides of terminal and outside second that closes of second group of optical switch of D1 × 2 optical switch is connected.
Claims (1)
1. novel bi-directional light is divided an add/drop multiplexer, and its bi-directional light divides add/drop multiplexer body to be mainly made up of 2 dense wave division multipurpose modules and 1 D1 × 2 optical switch;
The common port of the first dense wave division multipurpose module is connected with outside the first multiplexing port, the reflection end of the first dense wave division multipurpose module is connected with the reflection end of the second dense wave division multipurpose module, and the common port of the second dense wave division multipurpose module is connected with outside the second multiplexing port;
The first selecting side of the first dense wave division multipurpose module is connected 2 points of terminals of first group of optical switch of D1 × 2 optical switch with the first selecting side branch of the second dense wave division multipurpose module, the second selecting side of the first dense wave division multipurpose module is connected 2 points of terminals of second group of optical switch of D1 × 2 optical switch with the second selecting side branch of the second dense wave division multipurpose module;
The slotting port that divides of terminal and outside first that closes of first group of optical switch of D1 × 2 optical switch is connected, and the slotting port that divides of terminal and outside second that closes of second group of optical switch of D1 × 2 optical switch is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420003693.5U CN203645689U (en) | 2014-01-03 | 2014-01-03 | Novel bidirectional optical add-drop multiplexer (OADM) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420003693.5U CN203645689U (en) | 2014-01-03 | 2014-01-03 | Novel bidirectional optical add-drop multiplexer (OADM) |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203645689U true CN203645689U (en) | 2014-06-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420003693.5U Withdrawn - After Issue CN203645689U (en) | 2014-01-03 | 2014-01-03 | Novel bidirectional optical add-drop multiplexer (OADM) |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103731227A (en) * | 2014-01-03 | 2014-04-16 | 桂林市光隆光电科技有限公司 | Novel bidirectional optical add-drop multiplexer |
-
2014
- 2014-01-03 CN CN201420003693.5U patent/CN203645689U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103731227A (en) * | 2014-01-03 | 2014-04-16 | 桂林市光隆光电科技有限公司 | Novel bidirectional optical add-drop multiplexer |
| CN103731227B (en) * | 2014-01-03 | 2016-06-29 | 桂林光隆光电科技股份有限公司 | A kind of Novel bidirectional optical add-drop multiplexer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 541004 D-08 hi tech park, National Information Industry Park, Chaoyang Road, hi tech Zone, the Guangxi Zhuang Autonomous Region, Guilin Patentee after: GLsun Science and Technology Co., Ltd Address before: 541004 D-08 hi tech park, National Information Industry Park, Chaoyang Road, hi tech Zone, the Guangxi Zhuang Autonomous Region, Guilin Patentee before: Guanglong Photoelectric Science & Technolgoy Co., Ltd., Guilin City |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20140611 Effective date of abandoning: 20160629 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |