所属单位：University of Ottawa
论文名称：Time-delay signature suppression in a chaotic semiconductor laser by fiber random grating induced random distributed feedback
发表刊物：Optics Letters
摘要：We demonstrate that a semiconductor laser perturbed by distributed feedback with random time delays from a large number of scattering centers along a fiber random grating can emit light chaotically without the time-delay signature (TDS). A theoretical model is developed based on the modified Lang–Kobayashi model to numerically explore the chaotic dynamics of the laser diode subjected to random feedback. It is predicted that the random distributed feedback destroys the phase-correlated mode condition and hence suppresses the TDS. The fiber random grating is fabricated with random index modulation periods through point-by-point inscription, which introduces large numbers of phase-uncorrelated cavity modes into the semiconductor laser, leading to high dimensional chaotic dynamics and thus the concealment of the TDS. The experimentally obtained TDS value is negligible with a minimum of 0.0088, which is the smallest to date.
全部作者：Mingjiang Zhang,Liang Zhang,Ping Lu,Stephen Mihailov
第一作者：Yanping Xu
论文类型：期刊论文
通讯作者：Xiaoyi Bao
学科门类：工学
一级学科：光学工程
文献类型：J
卷号：42
期号：20
页面范围：4107-4110
是否译文：否
发表时间：2017-10-01
收录刊物：SCI
发表时间：2017-10-01