Demonstration of mid-IR gas sensing with frequency-swept Fabry-Perot cavity quantum cascade laser
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DOI
Abstract
We demonstrate an innovative approach for a mid-IR gas sensing spectroscopy with a cost-effective commercial Fabry-Perot cavity quantum cascade laser. Using transient blue-chirped emission of such a laser, the spectral fingerprint of methane at 8.15µm was clearly observed in absorption.
Publication Reference
EUROPEAN SEMICONDUCTOR LASER WORKSHOP 2022 (ESLW 2022), Neuchâtel (Switzerland)