Intracavity absorption gas sensor in the near-infrared region by using a tunable erbium-doped fiber laser based on a Hi-Bi FOLM

R. I. Álvarez-Tamayo; M. Durán-Sánchez; A. Barcelata-Pinzón; P. Prieto-Cortés; A. F. Rodríguez-Berlanga; A. A. Castillo-Guzmán; G. Salceda-Delgado; R. Selvas-Aguilar

doi:10.1117/12.2305033

14 May 2018 Intracavity absorption gas sensor in the near-infrared region by using a tunable erbium-doped fiber laser based on a Hi-Bi FOLM

R. I. Álvarez-Tamayo; M. Durán-Sánchez; A. Barcelata-Pinzón; P. Prieto-Cortés; A. F. Rodríguez-Berlanga; A. A. Castillo-Guzmán; G. Salceda-Delgado; R. Selvas-Aguilar

Author Affiliations +

Proceedings Volume 10654, Fiber Optic Sensors and Applications XV; 1065413 (2018) https://doi.org/10.1117/12.2305033
Event: SPIE Commercial + Scientific Sensing and Imaging, 2018, Orlando, Florida, United States

Abstract

We report an experimental study erbium-doped fiber laser for gas pressure detection in the L-band wavelength region by laser intracavity absorption spectroscopy. By using a high-birefringence fiber optical loop mirror as spectral filter within the ring cavity laser, the wavelength of the generated laser line is finely selected and tuned in a range of ~10 nm in order to select the wavelength where the gas absorption line is exhibited. Experimental results for detection of CO₂ pressure with absorption at 1573.2 nm are shown and discussed. The proposed fiber laser sensor exhibits reliability and stability for gas detection with absorption in the L-band such as CO₂, CO, and H₂S.

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R. I. Álvarez-Tamayo, R. I. Álvarez-Tamayo, M. Durán-Sánchez, M. Durán-Sánchez, A. Barcelata-Pinzón, A. Barcelata-Pinzón, P. Prieto-Cortés, P. Prieto-Cortés, A. F. Rodríguez-Berlanga, A. F. Rodríguez-Berlanga, A. A. Castillo-Guzmán, A. A. Castillo-Guzmán, G. Salceda-Delgado, G. Salceda-Delgado, R. Selvas-Aguilar, R. Selvas-Aguilar, } "Intracavity absorption gas sensor in the near-infrared region by using a tunable erbium-doped fiber laser based on a Hi-Bi FOLM", Proc. SPIE 10654, Fiber Optic Sensors and Applications XV, 1065413 (14 May 2018); doi: 10.1117/12.2305033; https://doi.org/10.1117/12.2305033

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