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27 February 2009 Narrow linewidth tunable CW thulium fiber lasers with VBG and GMRF stabilization
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Eye-safe, high power tunable narrow linewidth lasers are important for various applications such as atmospheric propagation measurements. We have investigated two techniques of generating narrow linewidth thulium 2-μm fiber lasers, utilizing a reflective volume Bragg grating (VBG), and a guided mode resonance filter (GMRF) as a cavity end mirror. A stable narrow linewidth (50 pm), tunable (from 2004 nm to 2054 nm) thulium doped fiber laser using a reflective VBGg was demonstrated. A CW power of 17 W was achieved. Using a GMRF as an end mirror we showed a narrow linewidth (~30 pm) laser with an output power of 5.8W, and at a slope efficiency of 44%.
© (2009) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Robert A. Sims, Tim McComb, Vikas Sudesh, Matthew Reichert, Martin Richardson, Menelaos Poutous, Zachary Roth, and Eric G. Johnson "Narrow linewidth tunable CW thulium fiber lasers with VBG and GMRF stabilization", Proc. SPIE 7193, Solid State Lasers XVIII: Technology and Devices, 71930U (27 February 2009);

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