Chinese Optics Letters · 2014 · 12 citations · 0 references
Natural SciencesMaterials ScienceOpticsOptoelectronicsPhotonicsLaser Host MaterialsLaser OpticsLaser PhysicsOptical SourcesOptical SwitchingUltrafast OpticsAbsorbed PowerContinuous-wave LasersHigh-power LasersLaser Beam QualityMaximum Power OutputQ SwitchingQ-switched LasersSolid-state Lasers
In this letter, we report a Ho:YVO4 laser pumped by a 1.94-m laser in both continuous-wave (CW) and Q-switched modes. The output performance of the Ho:YVO4 laser is compared with different output coupler transmissions. By use of the output coupler transmissions of T =30%, we obtain the maximum CW output power of 3.9 W at 2052 nm, with beam quality factor of M 2 =1.09 for the absorbed pump power of 12.5 W. For the Q-switched mode, we achieve maximum output energy per pulse of 0.38 mJ and the minimum pulse width of 25 ns, corresponding to the peak power of 15.2 kW.