Continuous wave and ReS<sub>2</sub> passively Q-switched Er : SrF<sub>2</sub> laser at ∼3 μm

Mingqi Fan; Tao Li; Jia Zhao; Shengzhi Zhao; Guiqiu Li; Kejian Yang; Liangbi Su; Houyi Ma; Christian Kränkel

doi:10.1364/OL.43.001726

Optics Letters
Vol. 43,
Issue 8,
pp. 1726-1729
(2018)
•https://doi.org/10.1364/OL.43.001726

Continuous wave and ReS₂ passively Q-switched Er : SrF₂ laser at ∼3 μm

Mingqi Fan, Tao Li, Jia Zhao, Shengzhi Zhao, Guiqiu Li, Kejian Yang, Liangbi Su, Houyi Ma, and Christian Kränkel

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Mingqi Fan, Tao Li, Jia Zhao, Shengzhi Zhao, Guiqiu Li, Kejian Yang, Liangbi Su, Houyi Ma, and Christian Kränkel, "Continuous wave and ReS₂ passively Q-switched Er : SrF₂ laser at ∼3 μm," Opt. Lett. 43, 1726-1729 (2018)

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Abstract

We report on an efficient $Er : {SrF}_{2}$ laser at 2.79 μm. A continuous wave output power of 1.06 W was obtained with a slope efficiency of 41%, significantly exceeding the Stokes efficiency of 35%. Stable $Q$ -switched laser operation was realized by using an ${ReS}_{2}$ saturable absorber, generating an average output power of 0.58 W with a pulse duration of 508 ns at a repetition rate of 49 kHz, corresponding to a pulse energy of 12.1 μJ.

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