论文信息 - 25 W Raman-fiber-amplifier-based 589 nm laser for laser guide star.

25 W Raman-fiber-amplifier-based 589 nm laser for laser guide star.

We report on a 25 W continuous wave narrow linewidth (< 2.3 MHz) 589 nm laser by efficient (> 95%) coherent beam combination of two narrow linewidth (< 1.5 MHz) Raman fiber amplifiers with a Mach-Zehnder interferometer scheme and frequency doubling in an external resonant cavity with an efficiency of 86%. The results demonstrate the narrow linewidth Raman fiber amplifier technology as a promising solution for developing laser for sodium laser guide star adaptive optics.

Luke R. Taylor | Yan Feng | D. B. Calia

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