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Full optical wavelength route cross module

A cross-module and wavelength technology, applied in the field of optical communication, can solve the problems of limited scale of optical switch integration and difficulty in realizing full-band continuous tunable laser light source, and achieve the effect of strong scalability

Inactive Publication Date: 2006-05-10
HUAZHONG UNIV OF SCI & TECH
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Problems solved by technology

[0003] The present invention provides an all-optical wavelength routing cross module to solve the problems in the prior art that the full-band continuous tunable laser light source is difficult to realize and the integration scale of optical switches is limited, so as to achieve dynamic wavelength exchange and wavelength reuse in all-optical networks virtual wavelength channel routing

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Embodiment Construction

[0023] The present invention will be further described below in conjunction with the embodiments and accompanying drawings.

[0024] An all-optical wavelength routing cross module of the present invention, its structure is as follows figure 1 As shown: it includes an erbium-doped fiber preamplifier 1 , a demultiplexer 2 , an optical space switch matrix 4 , a multiplexer or multiplexer 5 , and an erbium-doped fiber power amplifier 8 . figure 2 The shown all-optical wavelength routing cross module that can be used for wavelength conversion also includes a wavelength conversion selective optical space switch matrix 6 and a fixed wavelength converter 7 . Through the single-mode connection optical fiber 3, the demultiplexer 2, the optical space switch matrix 4 and the multiplexer or multiplexer 5 are sequentially connected, the optical space switch matrix 4, the wavelength conversion selection optical space switch matrix 6, and the fixed wavelength converter 7 and 4 are connecte...

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Abstract

A total optical wavelength route intersecting module comprising an Er-doped fiber preliminary amplifier, de-multiplexer, optical space switch matrix, multiplexer or wave combiner, Er-doped fiber power amplifier, each of the L line output of the de-multiplexer is connected to the L optical space matrix input ends, the signal output end having the same wave length of the N de-multiplexer is connected to the same optical space matrix input ends, each of which is connected to the M multiplexers or wave combiners, the output ends of the L different optical space switch matrix are connected to each of the input end of the same multiplexer or the wave combiner. The module by the invention can not only realize the dynamic optical wavelength interchange, but also reduce the cost and technology difficulty. íí

Description

technical field [0001] The invention belongs to the field of optical communication, in particular to an optical cross-connection component for realizing optical switching and optical routing. Background technique [0002] At this stage, to realize the virtual wavelength channel routing of wavelength reuse in all-optical networks, optical wavelength converters and optical switches must be used. Currently, optoelectronic-optical wavelength converters are widely used. The defect is that the format transparency of the communication channel is destroyed. With the increase of wavelength channels, the processing speed of the existing network node electronic equipment cannot keep up, forming an electronic bottleneck; In addition, at the existing technical level, the integration scale of optical switches is limited. Therefore, Electronics Letters, 20 th , March 2003 Vol.39 No.6 proposed such as image 3 The optical cross connector shown is composed of an erbium-doped fiber preampli...

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Application Information

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IPC IPC(8): H04Q3/52H04B10/12H04Q11/00
Inventor 刘德明杨春勇李蔚何军
Owner HUAZHONG UNIV OF SCI & TECH
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