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Watt-level passively Q-switched Er:Lu2O3 laser at 2.84 μm using MoS2

Mingqi Fan, Tao Li, Shengzhi Zhao, Guiqiu Li, Houyi Ma, Xiaochun Gao, Christian Kränkel, and Günter Huber

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Abstract

Efficient diode-pumped passively Q-switched Er:Lu2O3 laser operation at 2.84 μm was realized. A few-layer MoS2 nanosheet film on a YAG substrate, was fabricated and employed as saturable absorber (SA) in a short plane-plane cavity. Under an absorbed diode laser pump power of 7.61 W, an average output power of 1.03 W was generated with a pulse duration of 335 ns and a repetition rate of 121 kHz, resulting in a pulse energy of 8.5 μJ.

© 2016 Optical Society of America

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