Abstract
We have frequency doubled 589 nm laser light from a commercial ring dye laser in an external power enhancement cavity utilizing a BBO crystal. With ∼820 mW of input, 125 mW of UV light at 294.5 nm was produced. By offset locking the fundamental dye laser to an iodine hyperfine transition, we have stabilized the dye laser frequency to better than 50 kHz. This laser has been developed for the purpose of laser cooling an atomic gallium beam.
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