Butterworth, S.D., Clarkson, W.A., Moore, N., Friel, G.J. and Hanna, D.C.
High-power quasi-cw laser pulses via high-gain diode-pumped bulk amplifiers
Optics Communications, 131, (1-3), . (doi:10.1016/0030-4018(96)00267-2).
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By pulse-slicing from a cw laser output and then providing high gain amplification, one can obtain quasi-cw pulses at powers well in excess of those available from cw lasers. The use of this is demonstrated with a cw, additive-pulse-mode-locked Nd:YLF laser. Mode-locked pulse trains with an envelope of ~10µsec duration and repetition rate of 2kHz are amplified in a x20 gain, double-pass Nd:YLF bulk amplifier pumped by a 4W diode. Amplified power levels allow efficient single-pass frequency doubling in LBO followed by efficient synchronous pumping of an LBO optical parametric oscillator.
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