在分析基于级联二阶非线性效应的准相位匹配周期极化铌酸锂 (PPLN)波导全光波长变换器的有关参量容限的基础上 ,提出PPLN波长变换器的电光调控设想 ,并给予简要论证 ,论证结果是可行的 ,从而可实施电控调谐来自动补偿其失配 ,进而也可实现光开关的功能 Based on the analysis of the relative tolerances of all-optical wavelength converters based on cascaded second-order nonlinear effects of quasi-phase-matched periodically poled lithium niobate (PPLN) waveguides, the electro-optical control concept of PPLN wavelength converters is proposed and given A brief argument, the demonstration results are feasible, which can be implemented electrically controlled tuning to automatically compensate for its mismatch, and thus also can achieve the function of optical switches