High performance quantum cascade laser frequency combs at λ ~ 6 pm

Sargis Hakobyan; Richard Maulini; Stéphane Blaser; Tobias Gresch; Yan Francescato; Antoine Muller; Pitt Allmendinger; Markus Mangold; Pierre Jouy; Andreas Hugi

doi:10.1364/CLEO_SI.2020.STh4E.4

Conference on Lasers and Electro-Optics
OSA Technical Digest (Optica Publishing Group, 2020),
paper STh4E.4
•https://doi.org/10.1364/CLEO_SI.2020.STh4E.4

High performance quantum cascade laser frequency combs at λ ~ 6 pm

Sargis Hakobyan, Richard Maulini, Stéphane Blaser, Tobias Gresch, Yan Francescato, Antoine Muller, Pitt Allmendinger, Markus Mangold, Pierre Jouy, and Andreas Hugi

CLEO: Science and Innovations 2020

Washington, DC United States
10–15 May 2020
ISBN: 978-1-943580-76-7

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Frequency Comb Generation (STh4E)

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S. Hakobyan, R. Maulini, S. Blaser, T. Gresch, Y. Francescato, A. Muller, P. Allmendinger, M. Mangold, P. Jouy, and A. Hugi, "High performance quantum cascade laser frequency combs at λ ~ 6 pm," in Conference on Lasers and Electro-Optics, OSA Technical Digest (Optica Publishing Group, 2020), paper STh4E.4.

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Abstract

We present efficient quantum cascade laser frequency combs at 6 pm, operating from -20°C to 50°C, with a maximum total (two facets) output power of 520 mW. The dispersion of the waveguide is carefully engineered with the help of plasmonic-waveguide method to achieve efficient comb operation. 3mm, 4.5 mm and 6 mm-long devices were tested with various ridgewidths (from 2.8 μm to 5.5 μm). All the devices showed comb operation at all measured temperatures proving the reliability of the plasmonic-waveguide method.

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