Investigation into diode pumped modelocked ND based laser oscillators for the CLIC photoinjector system

Valentine, G.J. and Burns, D. and Bente, E.A.J.M.; Thienpont, H. and Berghmans, F. and Danckaert, J. and Desmet, L., eds. (2001) Investigation into diode pumped modelocked ND based laser oscillators for the CLIC photoinjector system. In: Proceedings IEEE/LEOS Annual Symposium. Vrije Universiteit Brussel, Brussel. ISBN 90-5487247-0

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    Abstract

    The photo-injector system envisaged for the proposed CLIC linear e+-e- accelerator at CERN has a demanding set of specifications on output pulse structure, power and timing stability. This paper reports on results obtained with quasi-CW diode pumped laser oscillators with output stabilisation. A 300W 804nm diode array stack is used to side pump Nd:YLF (1047nm) crystals with 200μs pulses at 100Hz repetition rate. Using feedback from the laser output to control an acousto-optic loss modulator in the cavity, start-up spiking and Q-switched behaviour is suppressed. Preliminary results obtained on incorporation of a saturable absorbing mirror for passive modelocking are presented.