Multichannel complete light 3R regenerator

Abstract

The invention relates to an all-optical 3R regenerator with high speed and large capacity, which belongs to the technical field of an all-optical network communication. The regenerator comprises an optical clock recovery device, an optical nonlinear device and an optical delay interference device; wherein, the optical clock recovery device is used for randomly choosing a line of destroyed signals to extract synchronous optical clock signals from a plurality of lines of destroyed optical signals in a transmission link; the synchronous optical clock signals and a plurality of lines of the destroyed optical signals enter into the nonlinear optical device; the nonlinear optical device is used for realizing a cross phase modulated XPM effect among the optical clock signals and a plurality of lines of the destroyed optical signals; a plurality of optical signals produced by realizing the cross phase modulated XPM effect of the nonlinear optical device enter into the optical delay interference device; the optical delay interference device is a comb-shaped filter which is used for filtering the certain chirp part in each optical signal spectral after the XPM effect happens; meanwhile, noises and deteriorated signal parts are filtered out; a plurality of regenerated optical signals are generated. The multi-channel all-optical 3R regenerator provided by the invention can regenerate each channel in one regenerator at the same time, avoid the destroy to the original signal transmission line owing to the present multi-channel regenerated device adopts the way of separating, regenerating and then combining, keep the integrity of the original transmission line. Meanwhile, the all-optical 3R regenerator with high speed and large capacity overcomes the defects that exist in the present multi-channel 3R regeneration proposal of the complicated system, high realization cost, bad stability and uneasy integration, etc.

Description

technical field [0001] The invention relates to the technical field of high-speed and large-capacity all-optical network communication, in particular to an all-optical 3R regenerator. Background technique [0002] All-optical 2R regeneration (re-amplification, re-shaping) and 3R regeneration (re-amplification, re-shaping, re-timing) are the core technologies in high-speed and large-capacity all-optical networks, and they are also the key to optical technology replacing traditional electronic technology to realize true all-optical networks . Compared with all-optical 2R regeneration, all-optical 3R regeneration can more effectively reduce and compensate for the power loss accumulated in the transmission process of optical signals, the noise introduced by optical amplifiers, the crosstalk between channels, and the noise introduced by factors such as dispersion and nonlinear effects. Pulse distortion factors such as timing jitter and pulse deformation can significantly improve...

AI Technical Summary

Problems solved by technology

[0004] The problem to be solved by the present invention is to provide a multi-channel 3R regenerator, which overcomes the shortcomings of the existing multi-channel 3R regeneration scheme, such as complex system, high implementation cost, poor stability and difficult integration.

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