Abstract
We present a design for a compact laser-diode-end-pumped Nd:YAP/Cr:YAG q-switched laser in a plano–concave cavity configuration. With an optical-to-optical efficiency of 35%, this laser provides an average output of 1.2 W with 13 mJ at 1080 nm. After that, the laser is frequency doubled by replacing the output coupler with a flat KTP crystal to achieve an output of 8 mJ in 8 ns at 540 nm. At a peak power of 1 MW, the laser emits linearly polarized output with an average power of 800 mW. The calculated M2 value is 1.3, the output is very stable, and the laser operates in the TEM00 mode.
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