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High-power continuous-wave supercontinuum generation in highly nonlinear fibers pumped with high-order cascaded Raman fiber amplifiers

Choudhury, Vishal and Arun, S and Prakash, Roopa and Supradeepa, V R (2018) High-power continuous-wave supercontinuum generation in highly nonlinear fibers pumped with high-order cascaded Raman fiber amplifiers. In: APPLIED OPTICS, 57 (21). pp. 5978-5982.

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Official URL: https://dx.doi.org/10.1364/AO.57.005978

Abstract

A novel method for efficient generation of a high-power, equalized continuous-wave supercontinuum source in an all-conventional silica fiber architecture is demonstrated. Highly nonlinear fiber is pumped in its anomalous dispersion region using a novel, high-power, L-band laser. The L-band laser encompasses a sixth-order cascaded Raman amplifier which is pumped with a high-power Ytterbium-doped fiber laser and amplifies a low-power, tunable L-band seed source. The supercontinuum generated 35 W of power with similar to 40% efficiency. The supercontinuum spectrum was measured to have a high degree of flatness of better than 5 dB over 400 nm of bandwidth (1.3-1.7 mu m, limited by spectrum analyzer range) and a power spectral density in this region of >50 mW/nm>50 mW/nm. The extent of the SC spectrum is estimated to be up to 2 mu m. (C) 2018 Optical Society of America

Item Type: Journal Article
Additional Information: Copyright of this article belong to OPTICAL SOC AMER, 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA
Department/Centre: Division of Interdisciplinary Research > Centre for Nano Science and Engineering
Depositing User: Id for Latest eprints
Date Deposited: 09 Aug 2018 15:41
Last Modified: 09 Aug 2018 15:41
URI: http://eprints.iisc.ac.in/id/eprint/60380

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