多波长转换对于增强波分复用光网络的灵活性具有重要意义。基于光子晶体光纤中的多四波混频原理，实现了4×10 Gbit/s全光波长转换，深入调查了泵浦功率、光纤长度、信号光与泵浦光偏振失配对波长转换信号质量的影响。结果表明：当泵浦光功率从6 dBm到20 dBm增长的过程中，转换信号Q因子随泵浦光功率增大而增大，最大为82.01，光纤长度从50 m到120 m变化过程中，转换信号Q因子最大为57.41，而随着信号光与泵浦光偏振失配角的增大，转换信号Q因子逐渐降低，当失配角大于60°后，转换信号质量急剧下降。

Multiple wavelength conversion is very important for improving the flexibility of wavelength division multiplexing optical networks. A 4×10 Gbit/s all optical wavelength conversion is demonstrated based on multiple four-wave mixing in high nonlinear photonic crystal fiber. The impact of parameter variation such as pump power, fiber length and polarization state on wavelength converted signal quality is investigated. The simulation results show that the Q factor of converted signal increases with the increasing of the pump power (from 6 dBm to 20 dBm) and the fiber length (from 50 m to 120 m), and the maximum Q factor is 82.01 and 57.41, respectively. Furthermore, the Q factor of converted signal decreases with the increasing of the polarization mismatch angle, and the Q factor decreases rapidly especially when the polarization mismatch angle is more than 60°.