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Optica, Optics Letters, 6(45), p. 1346, 2020

DOI: 10.1364/ol.386429

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Coherent mid-infrared supercontinuum generation in tapered suspended-core As39Se61 fibers pumped by a few-optical-cycle Cr:ZnSe laser

Journal article published in 2020 by Stanislav O. Leonov ORCID, Yuchen Wang ORCID, Vladimir S. Shiryaev, Gennady E. Snopatin, Boris S. Stepanov, Victor G. Plotnichenko, Edoardo Vicentini ORCID, Alessio Gambetta, Nicola Coluccelli ORCID, Cesare Svelto, Paolo Laporta, Gianluca Galzerano ORCID
This paper was not found in any repository, but could be made available legally by the author.
This paper was not found in any repository, but could be made available legally by the author.

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Abstract

We report on efficient supercontinuum generation in tapered suspended-core A s 39 S e 61 fibers pumped by a femtosecond mode-locked Cr:ZnSe laser. The supercontinuum spectrum spans the mid-infrared spectral region from 1.4 to 4.2 µm, and its spectral coherence is proved by heterodyning with a single-frequency narrow-linewidth Er-fiber laser at 1.55 µm, measuring a beat note with 27-dB signal-to-noise ratio in a resolution bandwidth of 100 kHz. The intensity stability of the supercontinuum radiation is also characterized by relative intensity noise measurements.