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Optimal Research on the Strain Sensitivity of Polarization Maintaining Fiber Loop Mirror |
JIANG Ying1, ZHANG Chong-zhen1, LIANG Da-kai2, LU Ji-yun3 |
1. College of Mechanical and Electronic Engineering, Nanjing Forestry University, Nanjing 210037, China
2. State Key Laboratory of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
3. College of Civil Aviation, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China |
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Abstract Sensitivity is one of the important performances for sensor. Without increasing system complexity, this paper studied the influence of self-performance and polarization maintaining fiber(PMF) length on the axial strain sensitivity of polarization maintaining loop mirror(PM-FLM)based on the theoretical model of PM-FLM by numerical simulation and experiments. The results show that we can choose a long wavelength point as a monitoring point to optimize the axial strain sensitivity for the same PM-FLM, a high strain dependent birefringence coefficient PMF to optimize the axial strain sensitivity for the PM-FLM with the same birefringence, a low birefringence PMF to optimize the axial strain sensitivity for the PM-FLM with the same strain dependent birefringence coefficient and the axial strain sensitivity is unrelated to PMF length.
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Received: 2015-09-18
Accepted: 2016-01-11
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