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Amplification of ultrashort solitons in erbium-doped fiber amplifiers

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1 Author(s)
Agrawal, G.P. ; Inst. of Optics, Rochester Univ., NY, USA

Pulse amplification in erbium-doped fiber amplifiers is studied by considering a general model that includes both gain saturation and gain dispersion. The effects of gain dispersion are studied numerically for the case in which a fundamental soliton is launched at the amplifier input. The results show that fiber amplifiers may be useful for simultaneous amplification and compression of weak optical pulses. Under high-gain conditions the input pulse is found to split into a train of amplified subpulses whose width and repetition rate are governed by the gain bandwidth. The numerical results are in qualitative agreement with recent experiments.<>

Published in:

Photonics Technology Letters, IEEE  (Volume:2 ,  Issue: 12 )