Time-Delay Signature of Chaotic Vertical-Cavity Surface-Emitting Lasers with Polarization-Rotated Optical Feedback

作     者：XIANG Shui-Ying PAN Wei YAN Lian-Shan LUO Bin ZOU Xi-Hua JIANG Ning WEN Kun-Hua 

作者机构：Center for Information Photonics and Communications Southwest Jiaotong University Chengdu 610031 

出 版 物：《Chinese Physics Letters》 (中国物理快报（英文版）)

年 卷 期：2011年第28卷第1期

页      面：98-101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] 0805[工学-材料科学与工程（可授工学、理学学位）] 0802[工学-机械工程] 0835[工学-软件工程] 0704[理学-天文学] 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 Natural Science Foundation of China under Grant No 60976039  the Specialized Research Fund for the Doctoral Program of Higher Education of China under Grant No 20070613058  the Fundamental Research Funds for the Central Universities (No 2010XS18)  and the Funds for the Excellent PhD Dissertation of Southwest Jiaotong University (2010) 

主　　题：Optics quantum optics and lasers 

摘      要：To quantitatively evaluate the time-delay （TD） signatures of chaotic signals generated by vertical-cavity surface- emitting lasers （VCSELs） with polarization-rotated optical feedback （PROF）, we propose four cases of resolution coefficients R based on correlation functions. The resolution coefficient characteristics for the x-polarization （XP） mode, g-polarization （YP） mode and the total output are considered. The dependences of R on the feedback strength and feedback delay are discussed and compared carefully. The two-dimensional maps of R show that the TD signatures for the single polarization mode （i.e., XP or YP mode） are much more difficult to retrieve than those for the total output in the entire parameter space. Thus, by using single polarization mode as a chaotic carrier, the TD signatures are extremely difficult to be identified, which contributes a lot in the security-enhanced VCSELs-based chaotic optical communication systems.