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arXiv · 1712.04239

Simultaneous Raman based Power Combining and Wavelength Conversion of High-power Fiber Lasers

Santosh Aparanji·V. Balaswamy·S. Arun·V. R. Supradeepa
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Abstract

We present a technique for simultaneous power-combining and wavelength-conversion of multiple fiber lasers into a single, lower 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.

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Santosh Aparanji, V. Balaswamy, S. Arun, V. R. Supradeepa. 2017-12-12. Simultaneous Raman based Power Combining and Wavelength Conversion of High-power Fiber Lasers. https://doi.org/10.1364/oe.26.004954

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