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 eff...

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Bibliographic Details
Published inOptics express Vol. 17; no. 21; pp. 19021 - 19026
Main Authors Feng, Yan, Taylor, Luke R, Calia, Domenico Bonaccini
Format Journal Article
LanguageEnglish
Published United States 12.10.2009
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Summary: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.
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ISSN:1094-4087
1094-4087
DOI:10.1364/oe.17.019021