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Optical signal transmission method for correcting chromatic dispersion through chirped optical fiber grating and optical communication system using the method
Optical signal transmission method for correcting chromatic dispersion through chirped optical fiber grating and optical communication system using the method
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机译:通过chi光纤光栅校正色散的光信号传输方法和使用该方法的光通信系统
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摘要
In a communication system with an optical fibre transmission line (3), a compensation of chromatic dispersion due to the fibre (3) is performed through at least one compensation module (4; 4A ... 4N) based on chirped optical fibre gratings having a group delay characteristic @ ( omega ) which exhibits ripples around a nominally linear profile, as a function of the optical signal frequency. To minimise the effect of said ripples, the compensation is carried out in such a way that, for a given fibre length (3), the operating point is located in a limited slope region along the curve representative of system performance degradation owing to chromatic dispersion. IMAGE
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