杨-顾算法在波分复用器中的应用

把杨-顾算法用在新型纯相位型解复用器的整体设计中，通过设定输入输出面H₁，H₂上应该具有的强度分布，来设计H₁，H₂相位片上应该具有的相位分布．用纯相位调制的方式实现解复用器的分光、聚焦等综合功能，大大简化了解复用器件的结构．同时在应用杨-顾算法的过程中，对算法本身作了拓展，应用于输入面是二维高斯光束，在输出面仍是二维高斯光束的情形． 关键词：

Y-G ALGORITHM USED IN WDM

Y-G algorithm is used in the whole desigh of a new type phase-only-controlled wave length division multiplexer (WDM). According to the intensity distribution set up on the input (H₁) and output(H₂) faces, the phase distribution on H₁ and H₂ can be designed. By only phase modulation, The demultiplex and focusing etc. are realized, thus the WDM structure is simplified, and at the same time the Y-G algorithm is extende to the situation that the input beam is a 2-D Gaussian beam and the output beam is also a 2-D Gaussian beam.