Theoretical analysis of polarization control for the stable output of multi-carrier source based on a re-circulating frequency shifter  

作　　者：周浩 席丽霞 李建平 张晓光 刘娜 

机构地区：[1]State Key Laboratory of Information Photonics and Optical Communications,Beijing University of Posts and Telecommunications

出　　处：《Chinese Optics Letters》2012年第10期13-16,共4页中国光学快报（英文版）

基　　金：supported by the Chinese Universities Scientific Fund (No. BUPT 2011RC009);the BUPT Excellent Ph.D. Students Foundation (No. CX201121);the Research Fund for the Doctoral Program of Higher Education (No. 20110005110014)

摘　　要：Fluctuating polarization state-of-light in the optical loop is an important factor that seriously influences the output performance of a multi-carrier source based on re-circulating frequency shifter （RFS）. The reason for output spectrum instability when no polarization controller （PC） is present in the loop is analyzed theoretically. Numerical simulations for the output spectra of the multi-carrier source with and without PC are conducted, and the trajectories of the several frequency components polarization states on the Poincare sphere with and without PC are compared. The results show that the performance of multi-carrier source based on a RFS can be improved effectively by adjusting the PC in the configuration properly.Fluctuating polarization state-of-light in the optical loop is an important factor that seriously influences the output performance of a multi-carrier source based on re-circulating frequency shifter （RFS）. The reason for output spectrum instability when no polarization controller （PC） is present in the loop is analyzed theoretically. Numerical simulations for the output spectra of the multi-carrier source with and without PC are conducted, and the trajectories of the several frequency components polarization states on the Poincare sphere with and without PC are compared. The results show that the performance of multi-carrier source based on a RFS can be improved effectively by adjusting the PC in the configuration properly.

关 键 词：Theoretical analysis of polarization control for the stable output of multi-carrier source based on a re-circulating frequency shifter 

分 类 号：TN761[电子电信—电路与系统]