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Troccoli, M., Lyakh, A., Fan, J., Wang, X., Maulini, R., Tsekoun, A.G., Go, R. and Patel, C.K.N. (2013) Long-Wave IR Quantum Cascade Lasers for Emission in the λ = 8-12μm Spectral Region. Optical Materials Express, 3, 1546. https://doi.org/10.1364/OME.3.001546

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• TITLE: Single-Mode Fabry-Pérot Quantum Cascade Lasers at λ~10.5 μm

  AUTHORS: Shouzhu Niu, Junqi Liu, Jinchuan Zhang, Ning Zhuo, Shenqiang Zhai, Xiaohua Wang, Zhipeng Wei

  KEYWORDS: Quantum Cascade Laser, Long Wave Infrared, Double Phonon Resonance

  JOURNAL NAME: Journal of Materials Science and Chemical Engineering, Vol.8 No.3, March 19, 2020

  ABSTRACT: In this paper, we report a single-mode Fabry-Pérot long wave infrared quantum cascade lasers based on the double phonon resonance active region design. For room temperature CW operation, the wafer with 35 stages was processed into buried heterostructure lasers. For a 4 mm long and 13 μm wide laser with high-reflectivity (HR) coating on the rear facet, continuous wave output power of 43 mW at 288 K and 5 mW at 303 K is obtained with threshold current densities of 2.17 and 2.7 kA/cm2. The lasing wavelength is around 10.5 μm. Single mode emission was observed for this particular device over the whole investigated current and temperature range.