Node structure of light transmission network based on adjustable wavelength shifter and wavelength self-router

A wavelength converter and node structure technology, which is applied in the field of photonic systems in optical communication technology, to achieve the effects of reducing costs, increasing work reliability, and increasing speed

Inactive Publication Date: 2005-06-22
SHANGHAI JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This structure has not yet been applied to optical transport network nodes

Method used

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  • Node structure of light transmission network based on adjustable wavelength shifter and wavelength self-router
  • Node structure of light transmission network based on adjustable wavelength shifter and wavelength self-router
  • Node structure of light transmission network based on adjustable wavelength shifter and wavelength self-router

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Embodiment Construction

[0018] The network node in the embodiment of the present invention is composed of a wavelength self-router, a local add module, a local drop module, an adjustable wavelength converter, a demultiplexer, a multiplexer, and a routing control module, such as figure 2 shown. The wavelength self-router is connected to the adjacent node through the optical fiber, the drop port of the wavelength self-router is connected to the local drop module and the adjustable wavelength converter through the demultiplexer, and the local add module and the adjustable wavelength converter are connected to the wavelength converter through the multiplexer. Connected to the add port of the router, the output end of the local drop module and the input end of the local add module are connected to the local electrical network, the input end of the routing control module is connected to the local electrical network, and the output ends of the routing control module are respectively connected to the local a...

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Abstract

The invention relates to an optical transmitting network node construction based on adjustable wavelength convertors and wavelength routers. The foot terminals of the wavelength routers linked with adjacent nodes are connected with the local foot modules and adjustable wavelength convertors. The local top modules and adjustable wavelength convertors are connected with the top terminals of the wavelength routers. The output terminals of local foot modules and input terminals of local top modules are connected with the local electrical network. The input terminals of router control modules are connected with the local electrical network, and the output terminals of router control modules are connected with the local top router module and the adjustable wavelength convertors respectively. The elimination of optical switch matrix at nodes reduces the exchanging time of nodes, the exchanging efficiency and the transmitting function are improved therefore.

Description

Technical field: [0001] The invention is an optical transmission network node composed of an adjustable laser, an adjustable wavelength converter, a photoelectric detector, and a wavelength self-router, which belongs to the field of photonic systems in the optical communication technology. Background technique: [0002] With the development of society and the advancement of science and technology, the social demand for emerging broadband data services such as broadband video, multimedia services, and IP-based real-time / quasi-real-time services continues to grow. High-speed all-optical communication network has become the development trend of communication network. Among many network technology implementation schemes, the all-optical network scheme based on optical fiber wavelength division multiplexing (WDM) can provide high-speed, large-capacity transmission and processing capabilities, good transparency, wavelength routing characteristics, compatibility and scalability , ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04Q11/00
Inventor 黄俊曾庆济刘华刘继民肖鹏程魏威
Owner SHANGHAI JIAOTONG UNIV
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