本文报道了使用两种不同漂白光源时，Ｐｏｌｙ３ＢＣＭＵ 薄膜的光漂白过程，并建立了描述漂白过程的理论模型最后讨论了采用光漂白方法制备导波微光学元件的可能性 This paper reports the photobleaching process of Poly3BCMU films using two different bleaching light sources and establishes a theoretical model describing the bleaching process. Finally, the possibility of preparing photobleaching optical elements using photobleaching is discussed