Watt-level passively Q-switched Er:Lu_2O_3 laser at 284 μm using MoS_2

• DOI: 10.1364/ol.41.000540
• Publication Date: 2016-01-28T17:14:45Z
• Authors: Mingqi Fan; Tao Li; Shengzhi Zhao; Guiqiu Li; Houyi Ma; Xiaochun Gao; Christian Kränkel; Günter Huber
• Keywords: Molybdenum; 0103 physical sciences; Nanotechnology; Oxides; Disulfides; Lasers, Solid-State; Lutetium; 01 natural sciences; 7. Clean energy; Erbium

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.