We report on efficient supercontinuum generation in tapered suspended-core AsSe 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.
Coherent mid-infrared supercontinuum generation in tapered suspended-core As39 Se61 fibers pumped by a few-optical-cycle Cr:ZnSe laser
Wang Yuchen;Coluccelli Nicola;Laporta Paolo;Galzerano Gianluca
2020
Abstract
We report on efficient supercontinuum generation in tapered suspended-core AsSe 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.File in questo prodotto:
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