Remote Gas Pressure Sensor Based on Fiber Ring Laser Embedded With Fabry–Pérot Interferometer and Sagnac Loop

Remote Gas Pressure Sensor Based on Fiber Ring Laser Embedded With Fabry–Pérot Interferometer and Sagnac Loop

In this paper, we propose a remote gas pressure sensor based on a fiber ring laser embedded with a Fabry–Pérot (F–P) interferometer and a Sagnac loop. A compact optic-fiber F–P interferometer is inserted in the fiber laser and works as the sensing head for...

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Bibliographic Details
Main Authors: Jia Shi, Yuye Wang, Degang Xu, Yixin He, Junfeng Jiang, Wei Xu, Haiwei Zhang, Genghua Su, Chao Yan, Dexian Yan, Ying Lu, Jianquan Yao
Format: Article
Language:English
Published: IEEE 2016-01-01
Series:IEEE Photonics Journal
Subjects:
Fiber optics sensors
intracavity sensing
remote sensing.
Online Access:https://ieeexplore.ieee.org/document/7559794/
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Summary:In this paper, we propose a remote gas pressure sensor based on a fiber ring laser embedded with a Fabry–Pérot (F–P) interferometer and a Sagnac loop. A compact optic-fiber F–P interferometer is inserted in the fiber laser and works as the sensing head for gas pressure detection. A wavelength selective filter based on optic-fiber Sagnac loop is used in the fiber laser. The sensitivity of −9.69 nm/kPa is obtained with a narrow 3-dB bandwidth less than 0.02 nm and high signal-to-noise ratio (SNR) ∼45 dB. Moreover, the excellent performance of the gas pressure sensor for remote detection is demonstrated.
ISSN:1943-0655

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