Long wavelength (λ = 10 - 20 µm) mid-IR quantum cascade lasers for spectroscopy applications

Zeineb Loghmari; Hadrien Philip; Michael Bahriz; Alexei N. Baranov; Roland Teissier

doi:10.1117/12.2583140

5 March 2021 Long wavelength (λ = 10 - 20 µm) mid-IR quantum cascade lasers for spectroscopy applications

Zeineb Loghmari, Hadrien Philip, Michael Bahriz, Alexei N. Baranov, Roland Teissier

Proceedings Volume 11705, Novel In-Plane Semiconductor Lasers XX; 1170514 (2021) https://doi.org/10.1117/12.2583140
Event: SPIE OPTO, 2021, Online Only

Abstract

We report new developments of quantum cascade lasers (QCL), made of InAs/AlSb, operating in the long wavelength mid-infrared range from 10 to 20 µm. Fabry-Pérot lasers operated in the CW regime up to a wavelength of 18 µm at 40°C, and up to 21 µm on Peltier cooler, with threshold current densities below 1 kA/cm². Distributed feedback QCL are also fabricated using a metal grating on the top of the laser ridges. They demonstrated single frequency operation in CW regime at room temperature. These lasers are suitable for new high resolution spectroscopy applications in this almost unexplored spectral range.

Conference Presentation

Citation Download Citation

Zeineb Loghmari, Hadrien Philip, Michael Bahriz, Alexei N. Baranov, and Roland Teissier "Long wavelength (λ = 10 - 20 µm) mid-IR quantum cascade lasers for spectroscopy applications", Proc. SPIE 11705, Novel In-Plane Semiconductor Lasers XX, 1170514 (5 March 2021); https://doi.org/10.1117/12.2583140

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