Laser-based gas sensing using mid-infrared semiconductor lasers combined with hollow-core fibers

Maciej Dworak; Grzegorz Gomółka; Ryszard Buczyński; Michal Nikodem

doi:10.1117/12.3005059

13 March 2024 Laser-based gas sensing using mid-infrared semiconductor lasers combined with hollow-core fibers

Maciej Dworak, Grzegorz Gomółka, Ryszard Buczyński, Michal Nikodem

Proceedings Volume 12905, Novel In-Plane Semiconductor Lasers XXIII; 129050M (2024) https://doi.org/10.1117/12.3005059
Event: SPIE OPTO, 2024, San Francisco, California, United States

Abstract

In this paper we presents a gas sensing setup based on interband cascade laser (ICL) and quantum cascade laser (QCL) combined with a negative-curvature hollow core fiber (HCF). We demonstrate simultaneous detection of water vapor, methane, nitrous oxide and carbon monoxide using wavelength modulation spectroscopy technique. With a 1m-long HCF we were able to record WMS signals with high signal/noise ratio for ambient concentrations of nitrous oxide and methane. Presented setup marks the first instance of a HCF-based sensor combining two mid-infrared semiconductor lasers (ICL near 3.3 μm and QCL near 4.5 μm) into a hollow-core fiber, giving good perspective for the development of portable, compact mid-infrared systems that enable multi-species detection with high sensitivity and selectivity.

Conference Presentation

Citation Download Citation

Maciej Dworak, Grzegorz Gomółka, Ryszard Buczyński, and Michal Nikodem "Laser-based gas sensing using mid-infrared semiconductor lasers combined with hollow-core fibers", Proc. SPIE 12905, Novel In-Plane Semiconductor Lasers XXIII, 129050M (13 March 2024); https://doi.org/10.1117/12.3005059

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