Desthieux, B., Laming, R.I. and Payne, D.N.
111kW (0.5mJ) pulse amplification at 1.5µm using a gated cascade of three erbium-doped fibre amplifiers
Applied Physics Letters, 63, (5), . (doi:10.1063/1.109957).
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 1.534µm were obtained.
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