A 10 Gbit/s OCDMA system based on electric encoding and optical transmission  

作　　者：李传起 胡金林 贺冬冬 陈美娟 王大迟 陈艳 

机构地区：[1]Electronic Engineering College,Guangxi Normal University

出　　处：《Optoelectronics Letters》2013年第6期473-476,共4页光电子快报（英文版）

基　　金：supported by the University Nature Science Fund of Guangxi Province(No.20101MS018);Guilin Scientific Research and Technological Development Program Topics(No.20120104-18)

摘　　要：An electric encoded/optical transmission system of code division multiple access(CDMA)is proposed.It encodes the user signal in electric domain,and transfers the different code slice signals via the different wavelengths of light.This electric domain encoder/decoder is compared with current traditional encoder/decoder.Four-user modulation/demodulation optical CDMA(OCDMA)system with rate of 2.5 Gbit/s is simulated,which is based on the optical orthogonal code(OCC)designed in our laboratory.The results show that the structure of electric encoding/optical transmission can encode/decode signal correctly,and can achieve the chip rate equal to the user data rate.It can overcome the rate limitation of electronic bottleneck,and bring some potential applications in the electro-optical OCDMA system.An electric encoded/optical transmission system of code division multiple access （CDMA） is proposed. It encodes the user signal in electric domain, and transfers the different code slice signals via the different wavelengths of light. This electric domain encoder/decoder is compared with current traditional encoder/decoder. Four-user modula- tion/demodulation optical CDMA （OCDMA） system with rate of 2.5 Gbit/s is simulated, which is based on the optical orthogonal code （OCC） designed in our laboratory. The results show that the structure of electric encoding/optical transmission can encode/decode signal correctly, and can achieve the chip rate equal to the user data rate. It can over- come the rate limitation of electronic bottleneck, and bring some potential applications in the electro-optical OCDMA system.

关 键 词：OCDMA系统 编码器 光传输 光码分多址 码片速率 编码 解码 光正交码 数据速率 

分 类 号：TN929.533[电子电信—通信与信息系统]