| 自陡峭效应对相位共轭系统脉冲传输的影响 |
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| 引用本文： | 步扬,王向朝.自陡峭效应对相位共轭系统脉冲传输的影响[J].中国激光,2005,32(4):75-480. |
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| 作者姓名： | 步扬 王向朝 |
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| 作者单位： | 中国科学院上海光学精密机械研究所信息光学实验室,上海,201800 |
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| 基金项目： | 国家863计划(2002AA404050)，上海市纳米专项计划(0214nm091, 0359nm004)资助项目。 |
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| 摘 要： | 光学相位共轭(OPC)技术能够同时且高效地补偿光纤传输过程中色散及非线性效应所导致的信号失真，且该技术同脉冲调制方式无关。从理论上分析了在自陡峭效应(SS)作用下高斯脉冲信号在中距相位共轭系统中的传输演化特性，数值模拟了在其作用下超短飞秒高斯脉冲的动态传输过程，讨论了自陡峭效应对中距相位共轭系统复原性能的影响。结果表明自陡峭效应将导致高斯脉冲信号发生峰值漂移和脉冲后沿变陡，相位共轭系统不能补偿由此导致的脉冲失真和畸变。引入合适的色散可以减小这种信号失真，并使得相位共轭系统能够同时补偿由于色散、自相位调制和自陡峭效应而引起的信号失真。
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| 关 键 词： | 非线性光学 光学相位共轭 自陡峭效应 色散 自相位调制 |
| 收稿时间： | 2004/2/12 |
Effects of Self-Steepening on Pulse Propagation in Optical Fiber System Using Optical Phase Conjugation |
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| BU Yang,WANG Xiang-zhao.Effects of Self-Steepening on Pulse Propagation in Optical Fiber System Using Optical Phase Conjugation[J].Chinese Journal of Lasers,2005,32(4):75-480. |
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| Authors: | BU Yang WANG Xiang-zhao |
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| Abstract: | Optical phase conjugation (OPC) is a promising optical techn ol ogy that can compensate for the distortion due to dispersion and nonlinear effec ts simultaneously in pulses propagating through a single-mode optical fiber. Th e pulse propagation characteristics influenced by self-steepening (SS) on the o ptical fiber system using midway OPC are analyzed theoretically. Dynamic evoluti on of ultra-short Gaussian pulses in the system is simulated numerically. Effec ts of SS on the compensation for the distortion are discussed. The results demon strate that the SS can affect pulse propagation dynamics. The distortion due to the SS cannot be compensated by the OPC. The distortion can be counteracted by t he small dispersion. |
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| Keywords: | nonlinear optics optical phase conjugation self-st eepening effect dispersion effect self-phase modulation |
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