JIANG Ying, ZENG Jie, LIANG Da-kai, WANG Xue-liang, NI Xiao-yu, ZHANG Xiao-yan, LI Ji-feng, LUO Wen-yong. Study on the Axial Strain Sensor of Birefringence Photonic Crystal Fiber Loop Mirror Based on the Absolute Integral of the Monitoring Peak[J]. Spectroscopy and Spectral Analysis, 2013, 33(12): 3273