Liang Han, Min Shao, Haonan Sun, Haiwei Fu, Xueguang Qiao. Sensing Characteristics of In-Fiber Michelson Interferometer Based on Multimode Interference[J]. Laser & Optoelectronics Progress, 2019, 56(17): 170628
- Laser & Optoelectronics Progress
- Vol. 56, Issue 17, 170628 (2019)
Fig. 1. Schematic of in-fiber Michelson interference sensor
Fig. 2. Light field distribution in SMF-MMF structure
Fig. 3. Calculated coupling coefficients of MMFs with different lengths
Fig. 4. Interference spectra of in-fiber Michelson interferometer based on MMFs with different lengths
Fig. 5. Spatial frequency spectra of in-fiber Michelson interferometer based on MMFs with different lengths
Fig. 6. Experimental setup of refractive index sensing
Fig. 7. Reflection spectra of sensing samples with different liquid refractive indexes. (a) L=7 mm; (b) L=11 mm; (c) L=22 mm
Fig. 8. Intensity versus liquid refractive index
Fig. 9. Reflection spectra of sensor samples in water with different temperatures. (a) L=7 mm; (b) L=11 mm; (c) L=22 mm
Fig. 10. Intensity versus temperature
Set citation alerts for the article
Please enter your email address
© Copyright 2018-2021 | Chinese Laser Press. All Rights Reserved 沪ICP备15018463号-20