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Conferences > OFC > 2024 > W1D > W1D.1

Yb-doped Fibers for kW-Class Fiber Lasers

A. Rosales-García, J.W. Nicholson, R. Jensen, P. Kristensen, J. Pincha, S. Ovtar, M. Mitrovic, K. Ingerslev, B. Edvold, S. Christensen, D. DiGiovanni, and B. Pálsdóttir

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Abstract

We demonstrate a TMI-free 5.2 kW single-mode output from a fiber amplifier using Yb 20/400 fibers with reduced core thermo-optic coefficient. The TMI threshold is increased by 50% compared to that of commercial Yb-doped fibers.

© 2024 The Author(s)

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