Tm:KLu(WO4)2 microchip laser Q-switched by a graphene-based saturable absorber
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We report on the first Tm-doped double tungstate microchip laser Q-switched with graphene using a Tm:KLu(WO4)2 crystal cut along the Ng 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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Tm:KLu(WO4)2 microchip laser Q-switched by a graphene-based saturable absorber / J. M. Serres [et al.] // Optics Express. – 2015. – Vol. 23, № 11. – P. 14108-14113.