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Counter-pumped distributed Raman amplification in wavelength division multiplex optical communication systems
Counter-pumped distributed Raman amplification in wavelength division multiplex optical communication systems
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机译:波分复用光通信系统中的反向泵浦分布式拉曼放大
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摘要
A Raman pump module for generating pump radiation having a pump wavelength (λp) for coupling into a transmission fiber of an optical wavelength division multiplex (WDM) communication system to provide Raman amplification of WDM radiation counter propagating therethrough is disclosed. The pump module is for use in a communications system in which the WDM radiation has a transmission waveband (λs) and wherein the transmission fiber has a zero dispersion wavelength (λm) lying midway between the transmission waveband and the pump wavelength. The module comprises a Raman pump laser for generating the pump radiation and a de-correlator for de-correlating the longitudinal modes of the pump radiation before it is coupled into the transmission fiber.
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机译:拉曼泵浦模块,用于产生具有泵浦波长(λ p Sub>)的泵浦辐射,以耦合到光波分多路复用(WDM)通信系统的传输光纤中,以提供WDM辐射反向传播的拉曼放大被披露。泵浦模块用于通信系统,其中WDM辐射具有传输波段(λ s Sub>),并且传输光纤的零色散波长(λ m Sub> )位于传输波段和泵浦波长之间的中间位置。该模块包括用于产生泵浦辐射的拉曼泵浦激光器和用于在泵浦辐射耦合到传输光纤之前使泵浦辐射的纵向模式解相关的解相关器。
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