Analysis of timing jitter in external-cavity mode-locked semiconductor lasers
Analysis of timing jitter in external-cavity mode-locked semiconductor lasers
复制标题
外腔锁模半导体激光器的定时抖动分析
DOI：
--
复制
发表时间：
2006
影响因子：
2.5
通讯作者：
Jesper Mørk
中科院分区：
文献类型：
--
作者：
J. Mulet;Jesper Mørk
我们基于全分布式时域方法开发了外腔锁模半导体激光器中被动锁模的全面理论描述。该模型考虑了增益和折射率的色散、超快过程的非线性增益饱和、自相位调制和自发发射噪声。锁模脉冲的波动通过使用相位噪声谱中噪声裙边的直接积分和 Haus 引入的孤子扰动的完全分布式模型来表征。我们实施该模型是为了研究 MQW 掩埋异质结构激光器的性能。数值模拟结果表明，在受 Gordon-Haus 抖动限制的最佳光学带宽下，吸收体部分中存在大反向偏压时，会出现实现具有最小定时抖动的最短脉冲的最佳驱动条件。
We develop a comprehensive theoretical description of passive mode-locking in external-cavity mode-locked semiconductor lasers based on a fully distributed time-domain approach. The model accounts for the dispersion of both gain and refractive index, nonlinear gain saturation from ultrafast processes, self-phase modulation, and spontaneous emission noise. Fluctuations of the mode-locked pulses are characterized from the fully distributed model using direct integration of noise-skirts in the phase-noise spectrum and the soliton perturbations introduced by Haus. We implement the model in order to investigate the performance of a MQW buried heterostructure laser. Results from numerical simulations show that the optimum driving conditions for achieving the shortest pulses with minimum timing jitter occur for large reverse bias in the absorber section at an optimum optical bandwidth limited by Gordon-Haus jitter.