Optics Letters · 2012 · 67 citations · 9 references
Liyf4 LaserPhotonicsOptical PumpingQ-switched TmEngineeringLaser ScienceLaser ApplicationsLaser MaterialLaser DesignSuper-intense LasersOptoelectronicsHigh-power LasersStable Passive Q-switchingSaturable Absorber
Stable passive Q-switching of a Tm: LiYF4 laser is obtained using polycrystalline Cr2+: ZnS as a saturable absorber. The achieved maximum pulse energy of 0.9 mJ and peak power of 65 kW for a pulse duration of ∼14 ns represent substantial improvement and highest values for a passively Q-switched diode-pumped Tm laser operating at ∼1.9 μm.
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