Methane sensing inside anti-resonant hollow-core fiber in the near- and mid-infrared spectral regions

Grzegorz Gomółka; Grzegorz Stępniewski; Dariusz Pysz; Ryszard Buczyński; Mariusz Klimczak; Michal Nikodem

doi:10.1117/12.2592300

18 April 2021 Methane sensing inside anti-resonant hollow-core fiber in the near- and mid-infrared spectral regions

Grzegorz Gomółka, Grzegorz Stępniewski, Dariusz Pysz, Ryszard Buczyński, Mariusz Klimczak, Michal Nikodem

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Proceedings Volume 11773, Micro-structured and Specialty Optical Fibres VII; 117730E (2021) https://doi.org/10.1117/12.2592300
Event: SPIE Optics + Optoelectronics, 2021, Online Only

Abstract

Anti-resonant hollow-core silica fiber is used to demonstrate near- and mid-infrared laser absorption spectroscopy of methane. Molecular transitions near 6057 cm^-1 (~1651 nm) and at 3057.7 cm^-1 (~3270 nm) are targeted. Distributed feedback laser diode and interband cascade lasers are used as tunable laser sources. Detection of methane in ambient air is demonstrated using this mid-infrared system.

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Grzegorz Gomółka, Grzegorz Stępniewski, Dariusz Pysz, Ryszard Buczyński, Mariusz Klimczak, and Michal Nikodem "Methane sensing inside anti-resonant hollow-core fiber in the near- and mid-infrared spectral regions", Proc. SPIE 11773, Micro-structured and Specialty Optical Fibres VII, 117730E (18 April 2021); https://doi.org/10.1117/12.2592300

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