基于光子晶体光纤四波混频效应的波长转换研究

Wavelength Conversion Based on Four-wave Mixing in Photonic Crystal Fiber

研究了光子晶体光纤中的四波混频效应及其波长转换.采用长度为25m的高非线性色散平坦光子晶体光纤,当泵浦功率为19.8dBm时,得到100nm的转换带宽和-20dB的最大转换效率.实验结果表明,当信号功率低于四波混频阈值时,两路不同波长的信号同时输入产生的四波混频效应互不影响.

Four-wave mixing and wavelength conversion in the photonic crystal fiber was studied. 25 meters of photonic crystal fiber was adopted due to it＇s high nonlinearity and flat dispersion characteristics. When the pump power is 19.8 dBm,100 nm of the tunable wavelength conversion bandwidth and --20 dB of the conversion efficiency were attained. The experimental results show that the four-wave mixing with two signals input simultaneously does not affect each other when the signal power is below the threshold of four-wave mixing.