Abstract
We present a high-power 1.53μm laser based on intracavity KTA-OPO driven by diode-end-pumped acousto-optical Q-switched YVO4/Nd:YVO4 composite. The composite crystal was utilized for reducing the thermal effect, and the mode mismatch compensating OPO cavity was designed for efficient OPO conversion. The output power of eye-safe laser at 1535nm was up to 4.4W with the pump power of 27W, corresponding to a diode-to-signal conversion efficiency of 16.3%. To our knowledge, this is the highest output power in diode-end-pumped circumstances. In the experiment, the strong yellow light generated by Raman conversion and frequency doubling in the KTA crystal was observed.
Published Version
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