We report on the first Tm-doped double tungstate microchip laser Q-switched with graphene using a Tm:KLu(WO) crystal cut along the N dielectric axis. This laser generates a maximum average output power of 310 mW with a slope efficiency of 13%. At a repetition rate of 190 kHz the shortest pulses with 285 ns duration and 1.6 µJ energy are achieved.
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| http://dx.doi.org/10.1364/OE.23.014108 | DOI Listing |
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