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Simultaneous Raman based power combining and wavelength conversion of high-power fiber lasers

Aparanji, S and Balaswamy, V and Arun, S and Supradeepa, VR (2018) Simultaneous Raman based power combining and wavelength conversion of high-power fiber lasers. In: Optics Express, 26 (4). pp. 4954-4960.

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Official URL: https://doi.org/10.1364/OE.26.004954


We present a technique for simultaneous power-combining and wavelength-conversion of multiple fiber lasers into a single, longer wavelength in a different band through Raman-based, nonlinear power combining. We illustrate this by power combining of two independent Ytterbium lasers into a single wavelength around 1.5micron with high output powers of upto 99W. A high conversion efficiency of ~64 of the quantum limited efficiency and a high level of wavelength conversion with >85 of the output power in the final wavelength is demonstrated. The proposed method enables power-scaling in various wavelength bands where conventional fiber lasers are unavailable or limited in power.

Item Type: Journal Article
Publication: Optics Express
Publisher: OSA - The Optical Society
Additional Information: The copyright for this article belongs to the Authors.
Keywords: Efficiency, Conventional fibers; High conversion efficiency; High power fiber lasers; Power combining; Quantum limited; Single wavelength; Wavelength band; Ytterbium lasers, Fiber lasers
Department/Centre: Division of Interdisciplinary Sciences > Centre for Nano Science and Engineering
Date Deposited: 31 Aug 2022 08:48
Last Modified: 31 Aug 2022 08:48
URI: https://eprints.iisc.ac.in/id/eprint/76309

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