Abstract
We report optical guiding and laser action at around in a -doped fluorogermanate glass waveguide fabricated using ultrafast laser inscription. A monolithic laser cavity was constructed by directly butt coupling dielectric mirrors to each facet of the long -doped waveguide. When the waveguide was pumped by a Ti:sapphire laser tuned to , laser oscillation was achieved at around . This waveguide laser exhibited a maximum slope efficiency of 6% and a maximum output power of when pumped with of incident laser power.
© 2011 Optical Society of America
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