Abstract
We report the continuous wave and acousto-optically Q-switched operation of a Tm:YLF-pumped Ho:YAP laser at room temperature. Continuous wave output power of 6.8 W at 2118 nm was obtained under the incident pump power of 13.4 W, corresponding to a slope efficiency of 65.6% and a conversion efficiency of 50.7%. For the Q-switched mode, a maximum pulse energy of 1.28 mJ and a minimum pulse width of 31 ns at the repetition rate of 5 kHz were achieved, resulting in a peak power of 41.3 kW. In addition, the Ho:YAP laser was employed as a pumping source of ZGP optical parametric oscillator, the total average output power of which was 3.2 W at 4.08 and 4.41 μm with a slope efficiency of 69.5%, corresponding to the diode-to-mid-IR conversion efficiency of 9.0%.
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Duan, X.M., Yao, B.Q., Yang, X.T. et al. Room temperature efficient continuous wave and Q-switched operation of a Ho:YAP laser. Appl. Phys. B 96, 379–383 (2009). https://doi.org/10.1007/s00340-009-3542-8
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DOI: https://doi.org/10.1007/s00340-009-3542-8