光码分多址频域编解码技术

摘要

This paper summarizes the principal techniques of spectral encoding/decoding for optical code division multiple access(OCDMA) including using: (1) grating and mask plate; (2) fiber grating and circulator; (3) arrayed waveguide grating(AWG); (4)Mach-Zehnder interferometer chain. The principle of encoding/decoding and corresponding performances are described in detail.%阐述了光码分多址（OCDMA）频域编/解码的主要技术：(1) 利用光栅-掩膜板；(2) 利用光纤光栅-环形器；(3) 利用阵列波导光栅；(4)利用Mach-Zehnder干涉仪链.详细介绍了它们的结构和编解码原理以及特性.