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Bidaux Y, Sergachev I, Wuester W, et al. Plasmon-enhanced waveguide for dispersion compensation in mid-infrared quantum cascade laser frequency combs. Opt Lett. 2017;42(8):1604-1607doi: 10.1364/OL.42.001604.
Bidaux, Y., Sergachev, I., Wuester, W., Maulini, R., Gresch, T., Bismuto, A., Blaser, S., Muller, A., & Faist, J. (2017). Plasmon-enhanced waveguide for dispersion compensation in mid-infrared quantum cascade laser frequency combs. Optics letters, 42(8), 1604-1607. https://doi.org/10.1364/OL.42.001604
Bidaux, Yves, et al. "Plasmon-enhanced waveguide for dispersion compensation in mid-infrared quantum cascade laser frequency combs." Optics letters vol. 42,8 (2017): 1604-1607. doi: https://doi.org/10.1364/OL.42.001604
Bidaux Y, Sergachev I, Wuester W, Maulini R, Gresch T, Bismuto A, Blaser S, Muller A, Faist J. Plasmon-enhanced waveguide for dispersion compensation in mid-infrared quantum cascade laser frequency combs. Opt Lett. 2017 Apr 15;42(8):1604-1607. doi: 10.1364/OL.42.001604. PMID: 28409809.
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Opt Lett. 2017 Apr 15;42(8):1604-1607. doi: 10.1364/OL.42.001604.

Plasmon-enhanced waveguide for dispersion compensation in mid-infrared quantum cascade laser frequency combs.

Optics letters

Yves Bidaux, Ilia Sergachev, Wolf Wuester, Richard Maulini, Tobias Gresch, Alfredo Bismuto, Stéphane Blaser, Antoine Muller, Jérôme Faist

PMID: 28409809 DOI: 10.1364/OL.42.001604

Abstract

We demonstrate dispersion compensation in mid-infrared quantum cascade laser frequency combs (FCs) emitting at 7.8 μm using the coupling of a dielectric waveguide to a plasmonic resonance in the top cladding layer of the latter. Devices with group velocity dispersion lower than 110  fs2/mm were fabricated, and narrow beatnotes with FWHM linewidths below 1 kHz were measured on the entire operation range. At -20°C, the optical output power reaches 275 mW, and the optical spectrum spans 60  cm-1. The multi-heterodyne beating spectrum of two devices was measured and spans 46  cm-1, demonstrating the potential of dispersion-engineered waveguides for the fabrication of highly stable and reliable quantum cascade laser FCs with high output power across the mid-infrared.

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