Eight-channel full fiber coarse wavelength-division multiplexer/demultiplexer

A demultiplexer and wavelength division multiplexing technology, which is applied in the field of photonic systems in optical communication technology, can solve the problems of high optical difficulty and low coupling efficiency, and achieves good working stability, low cost and good scalability. Effect
CN1545238AInactive Publication Date: 2004-11-10SHANGHAI JIAO TONG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANGHAI JIAO TONG UNIV
Publication Date
2004-11-10
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to 8-channel full-optical fiber coarse wavelength division multiplexer / demultiplexer, adopting a wavelength division multiplexing unit made by fused biconic taper (FBT) technique as a basic unit, using cascade mode to synthesize seven wavelength division multiplexing units at different working wavelength into a 20nm-space 8-channel three-stage full-optical fiber coarse wavelength division demultiplexer, which has an input port and 8 output ports, the lights of two branched channels of each unit are periodically distributed and compensatory. Reverse the demultiplexer as a coarse wavelength division multiplexer with 8 reverse input ports and 1 output port. It is easy to construct and little influenced by environmental temperature and humidity, and has low cost, good working stability and very good expandability, and can increase communication capacity for the same network, meeting the demands of current communication service on bandwidth.
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Description

Technical field:

[0001] The invention relates to an eight-channel all-fiber coarse wavelength division multiplexing / demultiplexing device, which is an important passive device in an optical fiber communication coarse wavelength division multiplexing system, and belongs to the field of photonic systems in optical communication technology. Background technique:

[0002] In recent years, the business traffic on the telecommunication network has been increasing continuously, requiring the network to provide wider and wider bandwidths. In order to meet the bandwidth requirements of communication services, many countries in the world use Dense Wavelength Division Multiplexing (DWDM) technology to expand the capacity of laid optical fiber lines. The advantages of wide bandwidth, transparency of data transmission and successful application in long-distance backbone network make DWDM an ideal network transmission platform. However, due to its high cost, dense wavelength division mul...

Claims

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