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Channel Waveguide Lasers Produced by Femtosecond and Picosecond Direct Laser Writing in Ti:Sapphire Crystals

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Abstract

Femtosecond-laser-written Ti:sapphire channel waveguides lase at ~798.25 nm above a threshold pump power of 84 mW with output power and slope efficiency of 143 mW and 23.5%, respectively. Lasing was also observed in picosecond-laser-written channels.

© 2012 Optical Society of America

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