The polarization properties analysis on photonic crystal fibers side-pulsed by CO2 laser

作     者：Wenwen Qian a,Chun-liu Zhao a,Xinyong Dong a,Juan Kang a,Jiangtao Guo b and Huifeng Wei b a Institute of Optoelectronic Technology,China Jiliang University,Hangzhou,China b R&D Center,Yangtze Optical Fibre and Cable Co.LTD.,Wuhan,China 

会议名称：《2010亚洲光电子会议光电器件及其集成分会场》

会议日期：2010年

学科分类：080901[工学-物理电子学] 070207[理学-光学] 0809[工学-电子科学与技术（可授工学、理学学位）] 07[理学] 08[工学] 080401[工学-精密仪器及机械] 0804[工学-仪器科学与技术] 0803[工学-光学工程] 0702[理学-物理学] 

基　　金：supported by the National Basic Research Program of China(973 Program)under grant 2010CB327804 the Qianjiang Talents Program of Zhejiang Province China 

关 键 词：photonic crystal fiber(PCF) CO2 laser micro-fabrication finite-element method(FEM) the polarization properties polarization dependence loss(PDL) 

摘      要：We have theoretically investigated the polarization properties of a single-mode photonic crystal fiber（PCF）,which is pulsed one-side by CO2 laser resulting in partial air-holes collapse and *** CO2 laser micro-fabrication is a common way in PCF post-processing,which is used widely both in writing fiber gratings on PCFs and making optical components such as PCF polarizers.A series models with different valley depth which is due to the collapsed air-holes have been simulated by using a full-vector finite-element method（FEM）with a perfectly matched layer（PML）.The theoretical results show that the deeper valley causes a larger insertion loss,at the same time,leading a larger polarization dependence loss（PDL）.This research provides an insight into the side-pulsed PCF as well as a guidance on the experiment of CO2 laser micro-fabrication on PCFs.