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Frequency stabilization of an ultraviolet semiconductor disk laser

Paboeuf, David and Schlosser, Peter and Hastie, Jennifer (2013) Frequency stabilization of an ultraviolet semiconductor disk laser. Optics Letters, 38 (10). pp. 1736-1738. ISSN 0146-9592

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We report a tunable, narrow-linewidth UV laser based on intracavity second-harmonic generation in a red semiconductor disk laser. Single-frequency operation is demonstrated with a total UV output power of 26 mW. By servo-locking the fundamental frequency to a reference Fabry–Pérot cavity, the linewidth of the UV beam has been reduced to 16 kHz on short timescales and 50 kHz on a 1 s timescale, relative to the reference.