2025/12/23 by Rose Ranson, Ranson, Rose, Yifan Zhou +11
Physics and Astronomy · #Advanced Frequency and Time Standards #Advanced Fiber Laser Technologies #Cold Atom Physics and Bose-Einstein Condensates
paper · doi:10.48550/arxiv.2512.20766
We demonstrate an injection-locked 399 nm laser system with up to 1 W output power and a locked power fraction of 0.57. The system consists of a high power, multimode diode laser that is seeded by 5 mW from a single-mode external cavity diode laser. The locked high-power laser inherits the frequency agility and linewidth of the seed laser with 3.9 kHz broadening. With active stabilization, the injection lock can be maintained for more than a day. We verify the utility of this system for atomic physics by performing spectroscopy of an ytterbium atomic beam.