Ultra-low threshold quantum cascade laser

Zhixin Wang; Filippos Kapsalidis; Ruijun Wang; Mattias Beck; Giacomo Scalari; Jérôme Faist

doi:10.1364/CLEO_SI.2021.STu1H.5

Conference on Lasers and Electro-Optics
OSA Technical Digest (Optica Publishing Group, 2021),
paper STu1H.5
•https://doi.org/10.1364/CLEO_SI.2021.STu1H.5

Ultra-low threshold quantum cascade laser

Zhixin Wang, Filippos Kapsalidis, Ruijun Wang, Mattias Beck, Giacomo Scalari, and Jérôme Faist

CLEO: Science and Innovations 2021

San Jose, California United States
9–14 May 2021
ISBN: 978-1-943580-91-0

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THz and Mid-IR Lasers (STu1H)

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Z. Wang, F. Kapsalidis, R. Wang, M. Beck, G. Scalari, and J. Faist, "Ultra-low threshold quantum cascade laser," in Conference on Lasers and Electro-Optics, J. Kang, S. Tomasulo, I. Ilev, D. Müller, N. Litchinitser, S. Polyakov, V. Podolskiy, J. Nunn, C. Dorrer, T. Fortier, Q. Gan, and C. Saraceno, eds., OSA Technical Digest (Optica Publishing Group, 2021), paper STu1H.5.

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Abstract

We present a quantum cascade laser operating at 4.3 μm wavelength and exhibiting a threshold current of only 9.5 mA while generating a single-mode maximum power of 0.9 mW at -20 °C in continuous-wave operation.

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