【摘要】 本文重点讨论了一种新型的全光器件——波长转换器。从物理概念上分析了它的原理，并且在理论上进行小信号分析，得出有益的结论：当两束光同时入射半导体光放大器，若一束光有变化，会对另一束光进行不同程度的调制，这仅仅表征在幅度与相位上的变化。更多还原

【Abstract】 The paper discusses a new type all-optical component of future commication.we study its converting principle.And we have analyzied conversion efficiency using smallsignal.we abtain some good conclusion.An analytic expresion is developed.According it,as we may know,while two light beams input,a light beam will be modulated by the other.These changes will indicate the differents of its phase and ampitude.更多还原