| 基于非线性光纤环形镜的二光平信号全光分离器 |
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| 引用本文： | 彭拥军,邱昆,纪四潍.基于非线性光纤环形镜的二光平信号全光分离器[J].中国激光,2011(5). |
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| 作者姓名： | 彭拥军 邱昆 纪四潍 |
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| 作者单位： | 电子科技大学宽带光纤传输与通信网络重点实验室; |
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| 基金项目： | 国家863计划(2009AA01Z216); 国家973计划(2011CB301703)资助课题 |
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| 摘 要： | 非线性光纤环形镜(NOLM)在不同抽运条件下具有不同的连续波开关特性,当单抽运NOLM在抽运峰值功率大于开关阈值功率时具有反转抽运脉冲峰的特点,在抽运脉冲上升与下降沿处各产生一个脉冲输出;当使用双脉冲抽运在两抽运脉冲除峰值功率和波长不同外其他参数一致时,透射输出由两个脉冲的峰值功率差决定,具有脉冲峰值功率比较作用。基于NOLM的这两个特性设计了全光分离两光功率水平信号的方案。利用光子学仿真软件进行了数值仿真,结果显示二光平信号被成功分离,并分别加载到不同波长上。实现了高功率级无基座脉冲输出,表明该方案也具有消除脉冲基座的能力。
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| 关 键 词： | 非线性光学 非线性光纤环形镜 全光逻辑运算 交叉相位调制 自相位调制 |
All-Optical Separator for Two-Level Power Signal Based on Nonlinear Optical Fiber-Loop Mirror |
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| Peng Yongjun Qiu Kun Ji Siwei.All-Optical Separator for Two-Level Power Signal Based on Nonlinear Optical Fiber-Loop Mirror[J].Chinese Journal of Lasers,2011(5). |
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| Authors: | Peng Yongjun Qiu Kun Ji Siwei |
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| Affiliation: | Peng Yongjun Qiu Kun Ji Siwei(Key Laboratory of Broadband Optical Fiber Transmission and Communication Networks,University of Electronic Science and Technology of China,Chengdu,Sichuan 610054,China) |
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| Abstract: | The switching characteristics of nonlinear optical fiber-loop mirror(NOLM) for continuous wave are different under different pumping conditions.When the pump peak power is greater than the switching threshold power,it is found that the transmitted waveform of single-pumped NOLM has the feature of inverting pump pulse peak and one transmitted pulse is generated respectively at the corresponding rising and falling edges of the original pump pulse.The double-pumped NOLM has the function of comparing pulse peak... |
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| Keywords: | nonlinear optics nonlinear optical fiber-loop mirror all-optical logic operation cross-phase modulation self-phase modulation |
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