New GasB-based single-mode diode lasers in the NIR and MIR spectral regime for sensor applications

Tobias Milde; Morten Hoppe; Herve Tatenguem; Martin Honsberg; Mario Mordmüller; James O’Gorman; Wolfgang Schade; Joachim Sacher

doi:10.1117/12.2287702

19 February 2018 New GasB-based single-mode diode lasers in the NIR and MIR spectral regime for sensor applications

Tobias Milde, Morten Hoppe, Herve Tatenguem, Martin Honsberg, Mario Mordmüller, James O’Gorman, Wolfgang Schade, Joachim Sacher

Author Affiliations +

Proceedings Volume 10553, Novel In-Plane Semiconductor Lasers XVII; 105530C (2018) https://doi.org/10.1117/12.2287702
Event: SPIE OPTO, 2018, San Francisco, California, United States

Abstract

The NIR/MIR region between 1.8μm and 3.5μm contains important absorption lines for gas detection. State of the art are InP laser based setups, which show poor gain above 1.8μm and cannot be applied beyond 2.1μm. GaSb laser show a significantly higher output power (100mW for Fabry-Perot, 30mW for DFB). The laser design is presented with simulation and actual performance data. The superior performance of the GaSb lasers is verified in gas sensing applications. TDLAS and QEPAS measurements at trace gases like CH₄, CO₂ and N₂O are shown to prove the spectroscopy performance.

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Tobias Milde, Morten Hoppe, Herve Tatenguem, Martin Honsberg, Mario Mordmüller, James O’Gorman, Wolfgang Schade, and Joachim Sacher "New GasB-based single-mode diode lasers in the NIR and MIR spectral regime for sensor applications", Proc. SPIE 10553, Novel In-Plane Semiconductor Lasers XVII, 105530C (19 February 2018); https://doi.org/10.1117/12.2287702

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