Generation of high-power frequency combs from injection-locked femtosecond amplification cavities

摘要

We demonstrate a scalable approach for the generation of high average power femtosecond (fs) pulse trainsnfrom Ti:sapphire by optically injection locking a resonant amplification cavity. We generate up to 7W aver-nage power with over 30% optical extraction efficiency in a 68 fs pulse train operating at 95 MHz. This mas-nter oscillator power amplifier approach allows independent optimization of the fs laser while enabling effi-ncient amplification to high average powers. The technique also enables coherent synchronization amongnmultiple fs laser sources. © 2008 Optical Society of America