基于太赫兹光非对称解复用器的全光倍频技术

太赫兹光非对称解复用器(TOAD)是一种全光信号处理领域中常用的器件, 其具有响应速度快、可集成、稳定性好等优点。本文提出了一种基于TOAD 的全光时钟倍频技术方案。通过模型仿真，模拟对TOAD 输入直流光，在时钟脉冲前后沿附近会产生双峰输出现象,以此来分析TOAD 的开关特性，研究了控制光能量、开关窗口大小、半导体光放大器增益恢复时间等因素对双峰输出特性的影响。对光时钟信号进行了全光二倍频、三倍频和四倍频的仿真，从频谱上观察，倍频准确，并且在实验上实现了200 Mb/s和1 Gb/s时钟的全光二倍频，与仿真结果相符。

Abstract

Terahertz optical asymmetric de- multiplexer (TOAD) is one of the key devices for all- optical signal processing with its fast response, good integration and stability. A scheme for all optical frequency multiplication is proposed based on the TOAD. The switch characteristics of the TOAD are discussed with simulations for bimodal output on the leading and tailing edges of the clock pulse as control, in addition with the dependence on some factors of the TOAD, such as energy of control pulse, window of TOAD, carrier recovery time. Based on the bimodal output effects, the all- optical frequency doubling, tripling and quadrupling are simulated, and the frequency doubling of the clock is implemented with simulations and experiments for 200 Mb/s and 1 Gb/s clocks.

参考文献

[1] J P Sokolof. A terahertz optical asymmetric demultiplexer (TOAD)[J]. Photon Technol Lett, 1993, 5(7): 787-790.

[2] 温亮生, 伍剑, 林金桐. 太赫兹光非对称解复用器中自发辐射噪声特性分析[J]. 中国激光, 2003, 30(9): 829-834.

Wen Liangsheng, Wu Jian, Lin Jintong. Analysis of the characteristics of amplified spontaneous emission in TOAD[J]. Chinese J Lasers, 2003, 30(9): 829-834.

[3] 王卓然, 于晋龙, 韩金婷, 等. SOA 注入电流及位置偏移量对TOAD 开关窗口的影响[J]. 中国激光, 2004, 31(2): 205-209.

Wang Zhuoran, Yu Jinlong, Han Jinting, et al.. Influences of injection current and the position offset of SOA on switching window of TOAD[J]. Chinese J Lasers, 2004, 31(2): 205-209.

[4] 闫玉梅, 尹丽娜, 周云峰, 等. 利用TOAD 实现10 Gbit/s全光非归零码到归零码的转换[J]. 中国激光, 2005, 32(11): 1510-1514.

Yan Yumei, Yin Lina, Zhou Yunfeng, et al.. 10 Gbit/s all- optical non- return- to- zero to return- to- zero conversion based on terahertz optical asymmetric demultiplexer[J]. Chinese J Lasers, 2005, 32(11): 1510-1514.

[5] Gayen D K, Chattopadhyay T, Pal R K, et al.. All- optical prefix tree adder with the help of terahertz optical asymmetric demultiplexer[J]. Chin Opt Lett, 2011, 9(6): 062001.

[6] Maity G K, Chattopadhyay T, Gayen D K, et al.. All- optical binary flip- flop with the help of terahertz optical asymmetric demultiplexer[J]. Natural Computing, 2010, 9(4): 903-916.

[7] Fok M P, Prucnal P R. All-optical XOR gate with optical feedback using highly Ge-doped nonlinear fiber and a terahertz optical asymmetric demultiplexer[J]. Appl Opt, 2011, 50(2): 237-241.

[8] 王拥军, 张晓磊, 吴重庆, 等. 基于大动态延迟范围全光缓存器的时隙处理[J]. 中国激光, 2013, 40(10): 1005001.

Wang Yongjun, Zhang Xiaolei, Wu Chongqing, et al.. Slot processing based on large dynamic delay range all- optical buffer[J]. Chinese J Lasers, 2013, 40(10): 1005001.

[9] 王文睿, 于晋龙, 罗俊, 等. 基于非线性光纤环镜的40 Gb/s可重构光逻辑门[J]. 光学学报, 2012, 32(5): 0506003.

Wang Wenrui, Yu Jinlong, Luo Jun, et al.. 40 Gb/s reconfigurable all-optical logic gate based on nonlinear optical loop mirror[J]. Acta Optica Sinica, 2012, 32(5): 0506003.

[10] 彭拥军, 邱昆, 纪四潍. 基于NOLM 的NRZ信号全光时钟倍频[J]. 激光杂志, 2011, 32(5): 27-31.

Peng Yongjun, Qiu Kun, Ji Siwei. All-optically doubling clock frequency of NRZ signal based on nonliner fiber-loop mirror[J]. Laser Journal, 2011, 32(5): 27-31.

[11] 孙振超, 王智, 刘岚岚, 等. 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, et al.. Key techniques for all optical repetition rate multiplication of pseudorandom bit sequences[J]. Chinese J Lasers, 2014, (41): 0105008.

简阳天, 王智, 林青, 孙振超, 吴重庆. 基于太赫兹光非对称解复用器的全光倍频技术[J]. 中国激光, 2015, 42(2): 0205002. Jian Yangtian, Wang Zhi, Lin Qing, Sun Zhenchao, Wu Chongqing. All Optical Frequency Multiplication Technology Based on Terahertz Optical Asymmetric De-Multiplexer[J]. Chinese Journal of Lasers, 2015, 42(2): 0205002.

基于太赫兹光非对称解复用器的全光倍频技术

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