Mid-infrared wavelength conversion using dispersion-engineered As2S5 microstructured optical fiber pumped with an ultrafast laser at 2 µm

Singh Saini, T and Tuan, TH and Matsumoto, M and Sakai, G and Suzuki, T and Ohishi, Y (2020) Mid-infrared wavelength conversion using dispersion-engineered As2S5 microstructured optical fiber pumped with an ultrafast laser at 2 µm. In: Optics Letters, 45 (10). pp. 2736-2739.

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Abstract

We fabricate a dispersion-engineered As2S5 microstructured optical fiber for demonstration of frequency conversion in one of the atmospheric-transparent windows in the mid-infrared domain. The experimentally obtained results show that parametric wavelength conversion at 4.5 µm is obtained using fabricated microstructured optical fiber pumped with 200 fs laser pulses of average power of 20 mW at 2 µm. Obtained detuning frequency from the pump frequency was ∼84 THz. To the best of our knowledge, the mid-infrared wavelength conversion at 4.5 µm in fiber configuration has been demonstrated for the first time. The experimentally observed result matches well with numerically simulated phase-matching conditions. © 2020 Optical Society of America

Item Type:	Journal Article
Publication:	Optics Letters
Publisher:	OSA - The Optical Society
Additional Information:	The copyright for this article belongs to OSA - The Optical Society
Keywords:	Arsenic compounds; Atmospheric movements; Dispersion (waves); Infrared devices; Microstructure; Optical fiber fabrication; Optical fibers; Optical frequency conversion; Optical pumping; Optically pumped lasers; Phase matching; Ultrafast lasers, Average power; Detuning frequency; Fs laser pulse; Micro-structured optical fibers; Mid-infrared wavelengths; Parametric wavelength conversions; Phase matching conditions; Pump frequency, Optical signal processing
Department/Centre:	Division of Interdisciplinary Sciences > Centre for Nano Science and Engineering
Date Deposited:	03 Nov 2021 11:07
Last Modified:	03 Nov 2021 11:07
URI:	http://eprints.iisc.ac.in/id/eprint/65596

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