光学学报, 2008, 28 (s1): 159, 网络出版: 2008-08-16
堆积啁啾脉冲在单模光纤中的非线性传输特性
Characteristics of Nonlinear Transmission of Stacking Chirped Pulses in Single-Mode Fiber
堆积啁啾脉冲 自相位调制 Raman频移 自陡效应 stacking chirped pulses self-phase modulation Raman-induced frequency shift self-steepening effect
摘要
通过数值求解广义非线性薛定谔方程,分析了32路线性啁啾高斯脉冲堆积后的整形脉冲在单模光纤中的传输特性。结果表明经50 m单模光纤传输后脉冲的脉宽和包络形状基本不变; 非线性效应中的自相位调制和脉冲内Raman散射对脉冲频域特性影响较大,使频谱展宽约40 THz,中心角频率下移约10 THz; 而自陡效应,三阶色散对传输特性影响不大。
Abstract
The characteristics of nonlinear transmission of shaped pulse through the stacking 32 linearly chirped Gaussian pulses in single mode fiber were analyzed by solving the generalized nonlinear Schrdinger equation numerically. The simulating results indicate that after 50 m transmission in a single mode fiber, the duration and the envelope shape of the stacking chirped pulses have almost no change. The nonlinear effects, such as self-phase modulation and intrapulse Raman scattering, impact seriously on the spectral domain characteristics of the pulse, the spectral width is broaden about 40 THz and the center angle-frequency is downshift about 10 THz. The self-steepening effect and the third order dispersion affect the transmission characteristics little.
周晓军, 张旨遥, 隋展, 王建军. 堆积啁啾脉冲在单模光纤中的非线性传输特性[J]. 光学学报, 2008, 28(s1): 159. Zhou Xiaojun, Zhang Zhiyao, Sui Zhan, Wang Jianjun. Characteristics of Nonlinear Transmission of Stacking Chirped Pulses in Single-Mode Fiber[J]. Acta Optica Sinica, 2008, 28(s1): 159.