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对光多址通信中的 3种新技术 (时分多址、波分多址和光码分多址 )作了简要的比较 ,指出光码分多址在多址通信中的优越性 ;介绍了码分多址中地址码相关性的含义和光码分多址通信系统的结构 ;对光码分多址通信中的关键技术———时域可调编 /解码及频域可调编 /解码的工作方式作了分析 ,对光开关控制型可调编 /解码器和光波导控制型可调编 /解码器提出了实现方案。介绍世界上光码分多址技术的研究进展。
A brief comparison is made between the three new technologies in optical multiple access communication (time division multiple access, wavelength division multiple access and optical code division multiple access), and the advantages of optical code division multiple access in multiple access communication are pointed out. The codes The meaning of the correlation of address codes in CDMA and the structure of optical code division multiple access communication system; the key technologies in optical CDMA communication --- time domain adjustable / decoding and frequency domain adjustable / decoding The work mode is analyzed, and the realization scheme is put forward for the optical switch control type adjustable encoder / decoder and the optical waveguide control type adjustable encoder / decoder. Introduces the research progress of optical code division multiple access in the world.