Abstract
In recent work [1], we have studied the the shaping of picosecond-duration optical pulses by the intensity-dependent transmission characteristics of a nonlinear fibre loop mirror. We demonstrated both experimentally and theoretically the advantages to be gained from this pulse shaping, in particular pulse compression and pedestal suppression. In this paper, we report on a Nonlinear Amplifying Loop Mirror (NALM) which performs both amplification and intensity filtering functions. We believe that this work will be of significance to all-optical transmission systems [2] and to some of the novel erbium fibre soliton laser configurations now being investigated [3].
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