Laser based timing and seeding of free electron
lasers witth high harmonics
Advances in femtosecond laser technology provide large
scale, long term stable, timing distribution, rf-synchronization as well
as synchronization of multiple pulsed laser sources on a femtosecond time
scale. Experimental results demonstrating 0.3 fs synchronization of independently
mode-locked lasers, measured of broad bandwidth, is presented. This
opens up the possibility to generate fully coherent femtosecond x-ray sources
by seeding with short wavelength high harmonics. Possible fiber laser based
systems for reliable laser drivers for photo injection and high-harmonic
generation are discussed.Grail"
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