【摘要】 提出一种实现二维光码分多址系统编解码的方法。阐述编解码的原理和电光晶体的基本性质,用电光晶体构造编解码器的关键部件电光偏转器和电光开关,对系统的每个部分进行分析,用具体的地址码进行模拟。结果表明,该方法能有效实现二维光码分多址系统的编解码,并且方法简单、控制灵活、系统升级方便,能够在全光网络通信中发挥重要作用。更多还原

【Abstract】 A new encoder-decoder scheme of 2-D OCDMA (Optical Code Division Multiple Access) system is proposed. The principles of encoding-decoding and the characteristics of electro-optic crystals are discussed. The key components,electro-optic deflector and switch,were manufactured by electro-optic crystals and each part of this system was analyzed respectively. A simulation was made with 2-D OOC (optical orthogonal code),and the results showed the effectiveness of this technique in realizing encoder-decoder. This system would play an important role in all-optical telecommunications with its simple scheme,flexible control and convenient upgrade.更多还原