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提出了一种新的光 CDMA编 /解码方案——分支光波导编 /解码方案 ,研究了分支光波导编/解码的基本原理 ,给出了分支光波导编 /解码器结构 ,分析结果表明 ,所提出的分支光波导编 /解码方案可以在全光水平上实现 CDMA编 /解码 ,具有变址灵活、易控制的优点 ,摆脱了光电转换的瓶颈 ,易实现光 CDMA编 /解码器的集成 .
A new optical CDMA encoding / decoding scheme, the branching optical waveguide coding / decoding scheme, is proposed. The basic principle of branching optical waveguide coding / decoding is studied. The structure of branching optical waveguide coder / decoder is given. The proposed branch optical waveguide coding / decoding scheme can realize CDMA coding / decoding at the all-optical level, has the advantages of flexible indexing and easy control, gets rid of the bottleneck of photoelectric conversion, and easily integrates the optical CDMA coder / decoder.