硫系光纤中基于四波混频的波长转换研究

Wavelength conversion based on four-wave mixing(FWM)

研究了微纳硫系光纤中基于四波混频(FWM)的波长变换。利用修正的非线性薛定谔耦合方程,对光纤中的FWM效应进行了数值仿真。通过数值仿真计算,分析了波长调谐量Δλ和光纤长度l对硫系光纤中FWM转换效率的影响,并与普通光纤中FWM波长转换情形做了对比。

The all-optical wavelength conversion based on four-wave mixing （FWM） effect in a micro-nano chalcogenide fiber is investigated in detail. The revised non-linear coupled-mode Schrodinger equations is used to study the FWM effect in a chalcogenide fiber. The research results show that maximum efficiency of wavelength conversion is found to be -14dB with a interval △λ between pump light and signal is 5rim when pump power and signal power at the input of fiber are 16 dBm and 1 dBm. The FWM conversion efficiency wavily decreases as the AA goes up. The energy flow diagram in chalcogenide fiber is given in contrast with that in commonly used fiber.