Micro-structure fiber optic Fabry-Perot cavity quasi based quasi-distributed sensor
A technology of Perot resonant cavity and micro-structured optical fiber, which is applied in the field of sensing technology devices, can solve the problems such as the limitation of the multiplexing number of optical Bragg gratings, and achieve the effect of high practical value, large multiplexing capacity, and accurate measurement
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[0022] The invention is based on the Fabry-Perot resonance effect and the fiber Bragg grating sensing principle, combined with the frequency division multiplexing and wavelength division multiplexing technology to form a quasi-distributed sensor based on the microstructure fiber Fabry-Perot resonator as the sensing unit The sensor improves the multiplexing capacity of the sensing unit on a single optical fiber, and realizes the monitoring of the spatial field distribution of parameters along the optical fiber.
[0023] The quasi-distributed sensor based on the microstructure fiber Fabry-Perot resonator provided by the present invention has a sensing fiber composed of a plurality of microstructure fiber Fabry-Perot resonators integrated on a single-mode fiber Composed in series, a microstructure optical fiber Fabry-Perot resonant cavity is a sensing unit.
[0024] The present invention will be further described below in conjunction with the embodiments and accompanying drawings...
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