Simultaneous demodulation comparison of fiber-optic Fabry–Perot sensors connected in parallel and series
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Jie Liao
and
Xiaozhan Yang
Abstract
In this work, the spectra of two fiber-optic Fabry–Perot sensors in parallel and series connection were studied. The spectrum of the parallel structure is a simple superposition of the two sensors’ spectrum, and that of the series structure can be regarded as the interference occurring in two Fabry–Perot sensors successively. The sensors’ optical path difference can be obtained and separated by using the theoretical formula to fit the normalized spectrum of parallel or series structure, which showed that two or more Fabry–Perot sensors can be simultaneously demodulated by the spectrum fitting method.
Funding source: Chongqing Municipal Education Commission
Award Identifier / Grant number: KJZD-M201901102
Funding source: National Natural Science Foundation of China
Award Identifier / Grant number: 51574054
Funding source: Chongqing Science and Technology Bureau
Award Identifier / Grant number: CSTCCXLJRC201905
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Author contribution: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.
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Research funding: The research was supported by the National Natural Science Foundation of China (No. 51574054); Chongqing Municipal Education Commission (No. KJZD-M201901102); Chongqing Science and Technology Bureau (No. CSTCCXLJRC201905).
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Conflict of interest statement: The authors declare no conflicts of interest.
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© 2021 Walter de Gruyter GmbH, Berlin/Boston
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Articles in the same Issue
- Frontmatter
- General
- Simultaneous demodulation comparison of fiber-optic Fabry–Perot sensors connected in parallel and series
- An intensity modulated fiber-optic carbon monoxide sensor based on Ag/Co-MOF in-situ coated thin-core fiber
- Dynamical Systems & Nonlinear Phenomena
- Periodic and localized structures in dusty plasma with Kaniadakis distribution
- Study of optical guiding of the Hermite–Gaussian laser beam in preformed collisional parabolic plasma channel and second harmonic generation
- Stability analysis of a delayed predator–prey model with nonlinear harvesting efforts using imprecise biological parameters
- Hydrodynamics
- Gas–liquid two-phase flow pattern analysis based on multiscale symbolic transfer entropy
- Numerical treatment of squeezing unsteady nanofluid flow using optimized stochastic algorithm
- Solid State Physics & Materials Science
- Identification of thermo optical parameters in 4l-hexyloxy-4-cyanobyphenyl with dispersed ZnO nano particles
- The process of magnetic flux penetration into superconductors
