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111kW (0.5mJ) pulse amplification at 1.5Ám using a gated cascade of three erbium-doped fibre amplifiers
B.Desthieux, R.I.Laming, and D.N.Payne
The generation of high peak power pulses by amplification of the output from a distributed feedback diode laser is demonstrated using a cascade of three erbium-doped fiber amplifiers (EDFAs) separated by an acousto-optic gate. The optimized amplifier chain consisted of two high efficiency single-mode EDFAs pumped with 40 mW at 980 nm, followed by a multimode EDFA pumped with 1.5 W at 978 nm. At low repetition rates, peak output powers of 111 kW and energies of 0.5 mJ at 1.534 μm were obtained.
Applied Physics Letters (1993) Vol.63(5) pp.586-588
Southampton ePrint id: 78293
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