We demonstrate a general technique for enhancement of femtosecond pulses from a pulse train through their coherent buildup inside a high-finesse cavity. Periodic extraction of the intracavity pulse by means of a fast switch provides a net energy gain of 42 to >70 times for 38-58-fs pulse durations. Starting with an actively stabilized but otherwise standard mode-locked laser system, we demonstrate pulses of >200-nJ energy.
|Original language||English (US)|
|Number of pages||3|
|State||Published - Dec 1 2004|
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics