Optical sensor for NO2 gas detection using an external cavity diode laser

Khaled Gasmi; Abdulaziz AlJalal; Watheq Al-Basheer

doi:10.1117/12.2665254

31 May 2023 Optical sensor for NO₂ gas detection using an external cavity diode laser

Khaled Gasmi, Abdulaziz AlJalal, Watheq Al-Basheer

Proceedings Volume 12572, Optical Sensors 2023; 1257214 (2023) https://doi.org/10.1117/12.2665254
Event: SPIE Optics + Optoelectronics, 2023, Prague, Czech Republic

Conference Poster

Abstract

In this paper, an external cavity diode laser (ECDL) in Littrow configuration with narrowband emission is presented. The laser system is based on a commercially available GaN Fabry-Perot laser diode. Longitudinal mode selection is performed using a reflective holographic grating. Tuning range over 3.4 nm is achieved with a short linewidth of 0.02 nm at the rated current. The ECDL system is integrated into an optical sensor for remote detection of Nitrogen Dioxide (NO2) gas.

Citation Download Citation

Khaled Gasmi, Abdulaziz AlJalal, and Watheq Al-Basheer "Optical sensor for NO₂ gas detection using an external cavity diode laser", Proc. SPIE 12572, Optical Sensors 2023, 1257214 (31 May 2023); https://doi.org/10.1117/12.2665254

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