Multi-Edge-Written Long-Period Fibre Gratings with Low PDL by Using High-Frequency CO2 Laser Pulses  

作　　者：朱涛 饶云江 王久玲 

机构地区：[1]Key Laboratory of Optoelectronic Technology and Systems (Ministry of Education), Chongqing University, Chongqing 400044 [2]Key Lab of Broadband Optical Fibre Transmission and Communication Networks Technologies (Ministry of Education), University of Electronic Science and Technology of China, Chengdu 610054

出　　处：《Chinese Physics Letters》2007年第7期1971-1972,共2页中国物理快报（英文版）

基　　金：Supported by the Key Project of the National Natural Science Foundation of China under Grant No 60537040, and Innovative Group Programme for Graduate Students of Chongqing University.

摘　　要：A novel long-period fibre grating （LPFG） with low polarization-dependent loss （PDL） is fabricated by using a multi-edge exposure method with high frequency CO2 laser pulses. The experimental results show that the PDL of a triple-edge-written LPFG with a peak amplitude of-16.5 dB can be as low as 0.22 dB. These hovel LPFGs can find important applications in optical communication and sensing.A novel long-period fibre grating （LPFG） with low polarization-dependent loss （PDL） is fabricated by using a multi-edge exposure method with high frequency CO2 laser pulses. The experimental results show that the PDL of a triple-edge-written LPFG with a peak amplitude of-16.5 dB can be as low as 0.22 dB. These hovel LPFGs can find important applications in optical communication and sensing.

关 键 词：SENSORS 

分 类 号：O44[理学—电磁学]