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Fast and accurate full-spectrum interrogation for fiber Fabry–Perot interferometric sensor consisting of Bragg gratings in polarization maintaining fiber
- Source :
- Japanese Journal of Applied Physics. 57:102501
- Publication Year :
- 2018
- Publisher :
- IOP Publishing, 2018.
-
Abstract
- A measurement method for many sharp transmittance peaks of a fiber Fabry–Perot interferometer (FPI) with high resolution in a short time is proposed. Using the proposed method, temperature and strain dependences of an FPI constructed using polarization maintaining type fiber Bragg grating (PM-FBG-FPI) are evaluated. By detecting wavelength shift occurring in many peaks of a PM-FBG-FPI with high resolution, it is possible to quantitatively evaluate a slight shift coefficient difference due to the difference in resonance order of each peak. Simultaneous measurement resolution of temperature and strain by the PM-FBG-FPI sensor is also improved by using the average value of the wavelength shift detected at many peaks. The resulting high-resolution measurements are demonstrated experimentally.
- Subjects :
- 010302 applied physics
Measurement method
Materials science
Physics and Astronomy (miscellaneous)
business.industry
General Engineering
Physics::Optics
General Physics and Astronomy
Polarization-maintaining optical fiber
Polarization (waves)
01 natural sciences
Interferometric sensor
010309 optics
Interferometry
Optics
Fiber Bragg grating
0103 physical sciences
Transmittance
business
Fabry–Pérot interferometer
Subjects
Details
- ISSN :
- 13474065 and 00214922
- Volume :
- 57
- Database :
- OpenAIRE
- Journal :
- Japanese Journal of Applied Physics
- Accession number :
- edsair.doi...........9855aa1d1fd6ec9d5b98dac8538253d4
- Full Text :
- https://doi.org/10.7567/jjap.57.102501