Multi-Edge-Written Long-Period Fibre Gratings with Low PDL by Using High-Frequency CO2 Laser Pulses
ZHU Tao, RAO Yun-Jiang, WANG Jiu-Ling
Key Laboratory of Optoelectronic Technology and Systems (Ministry of Education), Chongqing University, Chongqing 400044Key Lab of Broadband Optical Fibre Transmission and Communication Networks Technologies (Ministry of Education), University of Electronic Science and Technology of China, Chengdu 610054
Multi-Edge-Written Long-Period Fibre Gratings with Low PDL by Using High-Frequency CO2 Laser Pulses
ZHU Tao;RAO Yun-Jiang;WANG Jiu-Ling
Key Laboratory of Optoelectronic Technology and Systems (Ministry of Education), Chongqing University, Chongqing 400044Key Lab of Broadband Optical Fibre Transmission and Communication Networks Technologies (Ministry of Education), University of Electronic Science and Technology of China, Chengdu 610054
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 -16.5dB can be as low as 0.22dB. These novel LPFGs can find important applications in optical communication and sensing.
Abstract：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 -16.5dB can be as low as 0.22dB. These novel LPFGs can find important applications in optical communication and sensing.
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2007, Vol. 24 
