Abstract

In this paper, we report a compact Ho:YAP laser which is intra-cavity pumped by a diode-pumped Tm:YLF laser. The Ho:YAP crystal is c-cut with a Ho-doped concentration of 0.3%. At rod mount temperatures of 15 °C, we obtained 8 W of average output at two wavelengths of 2102 and 2129 nm from the Ho:YAP laser for 135.4 W of diode power incident upon two Tm:YLF rods, with a slope efficiency of 10.9% and a beam quality factor of M2 ∼ 2.2.

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