Soliton-similariton fibre laser

Date
2010-03-21
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Source Title
Nature Photonics
Print ISSN
1749-4885
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Publisher
Macmillan Publishers
Volume
4
Issue
5
Pages
307 - 311
Language
English
Type
Article
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Abstract

Rapid progress in passively mode-locked fibre lasers is currently driven by the recent discovery of new mode-locking mechanisms, namely, the self-similarly evolving pulse (similariton) and the all-normal-dispersion (dissipative soliton) regimes. These are fundamentally different from the previously known soliton and dispersion-managed soliton (stretched-pulse) regimes. Here, we report a fibre laser in which the mode-locked pulse evolves as a similariton in the gain segment and transforms into a regular soliton in the rest of the cavity. To our knowledge, this is the first observation of similaritons in the presence of gain, that is, amplifier similaritons, within a laser cavity. The existence of solutions in a dissipative nonlinear cavity comprising a periodic combination of two distinct nonlinear waves is novel and likely to be applicable to various other nonlinear systems. For very large filter bandwidths, our laser approaches the working regime of dispersion-managed soliton lasers; for very small anomalous-dispersion segment lengths it approaches dissipative soliton lasers. .

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Keywords
All normal dispersions, Dispersion managed solitons, Dissipative solitons, Existence of solutions, Filter bandwidth, Mode-locked pulse, Nonlinear cavities, Nonlinear waves, Locks (fasteners), Mode-locked fiber lasers, Passive mode locking, Solitons
Citation
Published Version (Please cite this version)