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A 564 W QCW Thulium Fiber Oscillator Pumped at 793 nm

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Abstract

A 1940 nm thulium fiber oscillator producing >550 peak watts at 10% duty cycle is presented. The laser, pumped by seven high-brightness fiber-coupled 793 nm diodes, is single transverse mode at 45% optical conversion efficiency.

© 2020 The Author(s)

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