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Notice of retraction
Vol. 34, No. 8(3), S&M3042

Notice of retraction
Vol. 32, No. 8(2), S&M2292

Print: ISSN 0914-4935
Online: ISSN 2435-0869
Sensors and Materials
is an international peer-reviewed open access journal to provide a forum for researchers working in multidisciplinary fields of sensing technology.
Sensors and Materials
is covered by Science Citation Index Expanded (Clarivate Analytics), Scopus (Elsevier), and other databases.

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Sensors and Materials, Volume 30, Number 12(1) (2018)
Copyright(C) MYU K.K.
pp. 2865-2872
S&M1723 Research Paper
https://doi.org/10.18494/SAM.2018.2114
Published: December 10, 2018

Optical Gas Sensor Based on the Fiber Laser Transient Regime for Measuring Acetylene [PDF]

Ana Dinora Guzman-Chavez and Everardo Vargas-Rodriguez

(Received August 27, 2018; Accepted October 31, 2018)

Keywords: gas sensor, acetylene, fiber laser, transient regime, intracavity absorption

An optical gas sensor based on an erbium-doped fiber laser (EDFL) for measuring acetylene (C2H2) is presented. Here, by taking advantage of the thermooptic properties of a silicon (Si) wafer, the fiber laser emission line is set at 1532.81 nm, where a strong ro-vibrational absorption of the acetylene molecule occurs. Moreover, in our setup, the gas concentration induces cavity losses that affect laser transient characteristics. Here, by measuring the time delay (τd) from the laser transient, it was possible to measure the C2H2 concentration within the range from 0 to 22% with a sensitivity of 1.17 × 10–2 ms/% and a minimum detectable concentration of 942 ppm. Finally, it is shown that the sensor requires only 18.5 ms to complete a measurement.

Corresponding author: Ana Dinora Guzman-Chavez


Cite this article
Ana Dinora Guzman-Chavez and Everardo Vargas-Rodriguez, Optical Gas Sensor Based on the Fiber Laser Transient Regime for Measuring Acetylene, Sens. Mater., Vol. 30, No. 12, 2018, p. 2865-2872.



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