| 光纤中皮秒高斯脉冲的传输特性研究 |
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| 引用本文： | 王永祥. 光纤中皮秒高斯脉冲的传输特性研究[J]. 激光杂志, 2010, 0(6): 46-47 |
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| 作者姓名： | 王永祥 |
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| 作者单位： | 宜春学院物理科学与工程技术学院,江西宜春336000 |
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| 摘 要： | 对描述具有初始频率啁啾的皮秒高斯脉冲传输的微分方程组用龙格-库塔算法进行了求解,得到了高斯脉冲各参数随距离演化的数值解并据此画出了高斯脉冲包络的演化。数值结果表明：二阶色散与光纤非线性的比值为0.72时,脉冲的展宽可以被光纤非线性有效地补偿,且脉冲的频率抖动和啁啾也可以得到较好的抑制,但是过强的三阶色散和初始啁啾将导致脉冲能量的迅速衰减和波形的快速畸变。
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| 关 键 词： | 导波与纤维光学 传输特性 色散与非线性 龙格-库塔算法 |
A study on the propagation properties of picoseconds Gaussian-shaped pulses in optical fiber |
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| WANG Yong-xiang. A study on the propagation properties of picoseconds Gaussian-shaped pulses in optical fiber[J]. Laser Journal, 2010, 0(6): 46-47 |
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| Authors: | WANG Yong-xiang |
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| Affiliation: | WANG Yong-xiang(College of Physics Science ＆ Engineering Technology,Yichun University,Yichun ,Jiangxi 336000,China) |
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| Abstract: | By using Runge-Kutta algorithm,calculates the differential equations that describe the evolution of picoseconds Gaussian-shaped pulse with chirp in optical fiber,plot the evolution of picoseconds Gaussian-shaped pulse based on the result of calculation.The numerical result indicates that the broadening effect on the pulse can be effectively compensated by nonlinear when the ratio of the second-order dispersion to nonlinear is 0.72 and the shift of frequency can also get a better suppression.But too large coefficient of the third-order dispersion and initial chirp will lead to rapid attenuation of energy and serious distortion of waveform. |
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| Keywords: | waveguide and fiber optics propagation property dispersion and nonlinear Runge-kutta algorithm |
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