WG1005
CLASSE, Ithaca, New York, USA
One of the key requirements for an Energy Recovery Linac (ERL) is to have a 1.3 GHz, high-power laser source that is used to drive the ERL photocathode gun. Here we present a fiber master oscillator power amplifier (MOPA) system that could potentially meet this important need. We start with 1.3GHz oscillator emitting a chirped 8 ps pulse train. Through two preamp stages and one main amplifier, an average IR power of 135 Watts was obtained. After de-chirping the optical pulses, frequency doubling yields more than 50 Watts green light at 520 nm. It is anticipated that such a laser source could be employed to generate up to 100 mA average current electron source in the ERL at Cornell University.
