Chinese Optics Letters, 2018, 16 (9): 090601, Published Online: Sep. 6, 2018
An interferometric phase shift fiber Bragg grating sensing system with greatly reduced background phase noise Download: 634次
Abstract
We presented an interferometric phase shift fiber Bragg grating (FBG) sensor, which inherited the advantages of FBG sensors, and, at the same time, the greatly reduced full-width-at-half-maximum bandwidth brought longer coherent length, higher sensitivity, and lower phase noise. Experiments show that at least a 7 dB reduction of phase noise can be achieved compared to FBG sensors interrogated by interferometer with the same optical path difference.
Lina Ma, Yu Chen, Zhengliang Hu, Jinxing Huang, Jun Wang, Shiqing Li. An interferometric phase shift fiber Bragg grating sensing system with greatly reduced background phase noise[J]. Chinese Optics Letters, 2018, 16(9): 090601.