Optical packet-switched networks node structure based on adjustable laser

A technology of packet switching network and node structure, applied in the field of optical packet switching network node structure, can solve the problems of large scale of optical switch matrix, difficult management and scheduling, complex structure, etc., to avoid adverse effects, reduce adverse effects, and simple structure. clear effect

Inactive Publication Date: 2003-08-06
SHANGHAI JIAO TONG UNIV
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Problems solved by technology

Since the optical storage device is still in the research stage, the commonly used method to solve the competition is to use the optical fiber delay line. In the actual scheme, the structure of the optical packet switching network node composed of the optical fiber delay line is complicated, especially the optical switch matrix. large scale
Difficult to manage and schedule

Method used

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  • Optical packet-switched networks node structure based on adjustable laser
  • Optical packet-switched networks node structure based on adjustable laser

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Embodiment Construction

[0013] In order to better understand the technical solutions of the present invention, the implementation manners will be further described below in conjunction with the accompanying drawings.

[0014] Such as figure 1 As shown, the present invention uses multiple multiplexers, multiplexers, adjustable wavelength converters, optical switch matrices, and fiber delay lines at the optical packet switching node. The input fiber of the node is divided into multiple channels by the splitter, and each fiber is connected to a tunable wavelength converter. The output end of each wavelength converter is connected to a splitter and connected to fiber delay lines of different lengths. These fiber delays The lines are further divided into groups, and the output end of each group is connected to a multiplexer, and the output end of each multiplexer is connected to an adjustable wavelength converter, and then the output end of the wavelength converter is connected to the optical switch matri...

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Abstract

The invention is a node structure of optical packet-switched network, based on adjustable laser. The node input fibre-optical is divided into multiple paths by the wave-division device and then respectively links with an adjustable wavelength converter, the output end of each converter linked with the different-length fibre-optical delayed line by one wave-division device, that of each group of delayed lines linked with the optical switch array by a wave-combing apparatus and an adjustable wavelength converter and that of the array linked with the waving-combing device whose number is same tothe node input end, so as to output the optical signal to the aim node. It adopts the converter to realize the path selection and transmission of the optical package and multiple wave-combing and wave-division devices to select the delayed line.

Description

Technical field: [0001] The invention relates to an optical packet switching network node structure based on an adjustable laser, which is suitable for the optical packet switching network and 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 , can adapt to the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B6/26H04J14/02H04Q11/00
Inventor 黄俊曾庆济肖鹏程刘继民肖石林
Owner SHANGHAI JIAO TONG UNIV
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