Method to identify time delay of chaotic semiconductor laser with optical feedback

作     者：郭园园 武媛 王云才 

作者机构：Institute of Optoelectronic EngineeringCollege of Physics and OptoelectronicsTaiyuan University of Technology 

出 版 物：《Chinese Optics Letters》 (中国光学快报（英文版）)

年 卷 期：2012年第10卷第6期

页      面：58-62页

核心收录：

学科分类：080901[工学-物理电子学] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 080401[工学-精密仪器及机械] 0804[工学-仪器科学与技术] 0835[工学-软件工程] 0802[工学-机械工程] 0803[工学-光学工程] 080201[工学-机械制造及其自动化] 

基　　金：supported by the National Science Foundation for Young Scientists of China (Nos. 60908014,60927007, and 61001114) the Natural Science Foundation for Young Scientists of Shanxi Province, China (No.2009021003) the Key Science and Technology Program of Shanxi Province, China (No. 20100321055-02) 

主　　题：Feedback Power spectrum Semiconductor lasers Spectrum analysis 

摘      要：We propose a power spectrum analysis method to directly identify the time delay of a chaotic semiconductor laser with optical feedback. By measuring the radio frequency （RF） power spectrum of the chaotic laser and performing an inverse Fourier transform, we can easily unveil all the time delay signatures, regardless of whether the chaotic output is induced by single or multiple feedback. This method successfully retrieves the two time delay signatures from the power spectrum of a semiconductor laser with double-cavity feedback.