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Mechanism of brightness enhancement in multimode LD-pumped graded-index fiber Raman lasers

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Abstract

A theory describing experimental beam profiles of multimode fiber Raman lasers is developed: random mode coupling, Kerr self-cleaning and spatial filtering play a decisive role in shaping Stokes beams, whereas depleted pump beams remain insensitive.

© 2021 The Author(s)

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Poster Presentation

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