中国激光, 2014, 41 (1): 0105008, 网络出版: 2014-01-02
全光伪随机码倍速关键技术
Key Techniques for All-Optical Repetition Rate Multiplication of Pseudorandom Bit Sequences
信号处理 全光波长变换 全光或逻辑 太赫兹光非对称解复用器 伪随机码倍速 signal processing all-optical wavelength conversion all-optical OR-logic gate terahertz optical asymmetric demultiplexer repetition rate multiplication of pseudorandom bit
摘要
提出了基于太赫兹光非对称解复用器(TOAD)结构来实现全光伪随机码(PRBS)倍速中全光波长变换及全光或逻辑运算两项关键技术的方案。对TOAD结构的开关特性进行了理论与实验研究，并利用TOAD结构实现了10 Gb/s速率的波长变换和全光或逻辑的仿真与实验。结果表明： 继续减小控制脉冲宽度和开关窗口宽度，利用TOAD结构可以获得更高速率的波长变换和全光或逻辑运算；利用这两项关键技术，基于TOAD结构可实现PRBS倍速，获得更高速率的全光PRBS码流。
Abstract
A scheme is proposed to achieve all-optical wavelength conversion and all-optical OR-logic gate, which are two key techniques for repetition rate multiplication of pseudorandom bit sequences (PRBS) based on terahertz optical asymmetric demultiplexer (TOAD). The switch characteristics of TOAD are discussed followed by 10 Gb/s wavelength conversion and all-optical OR-logic gate with theoretical simulations and experiments. The results indicate that the wavelength conversion and all-optical OR-logic gate can be implemented at ultra-high bit rate by this TOAD scheme if the widths of control pulse and switch window are smaller. Furthermore, all-optical PRBS with higher rate can be generated by employing both of the key techniques to achieve the repetition rate multiplication of PRBS.
孙振超, 王智, 刘岚岚, 张丽梅, 王甫, 刘英峰, 吴重庆. 全光伪随机码倍速关键技术[J]. 中国激光, 2014, 41(1): 0105008. Sun Zhenchao, Wang Zhi, Liu Lanlan, Zhang Limei, Wang Fu, Liu Yingfeng, Wu Chongqing. Key Techniques for All-Optical Repetition Rate Multiplication of Pseudorandom Bit Sequences[J]. Chinese Journal of Lasers, 2014, 41(1): 0105008.
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