Abstract
We present a detailed experimental study of femtosecond tuning with Cr:LiSAF and Cr:LiCAF gain media using -based saturable Bragg reflectors. In the experiments with Cr:LiSAF gain media, femtosecond tuning ranges of (), () and () were demonstrated using three different saturable Bragg reflectors with reflectivity bands centered at around 800, 850, and , respectively. With Cr:LiCAF gain medium, a femtosecond tuning range of () was demonstrated using the saturable Bragg reflector. Pulses as short as with Cr:LiSAF and with Cr:LiCAF have been obtained, which we believe are the shortest pulses reported from Cr:colquiriite laser systems mode locked with saturable Bragg reflectors. This study further illustrates the benefits and limitations of -based saturable Bragg reflectors for use in Cr:colquiriites.
© 2011 Optical Society of America
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