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Optica Publishing Group
  • Conference on Optical Fiber Communication/International Conference on Integrated Optics and Optical Fiber Communication
  • 1993 OSA Technical Digest Series (Optica Publishing Group, 1993),
  • paper FA3
  • https://doi.org/10.1364/OFC.1993.FA3

Ultrashort pulses in erbium-fiber figure-eight lasers: limitations of intracavity dispersion

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Sources of ultrashort soliton pulses are essential for any future implementation of ultrafast (~100 Gbit/s) communications systems. Figure-eight erbium-fiber lasers (F8L’s) mode locked with a nonlinear amplifying loop mirror (NALM) have been demonstrated as sources of subpicosecond pulses, with several groups reporting lengths of approximately 300 fs.1 The pulses typically consist of a soliton-like component and a dispersive component shed from the main pulse by the variation with amplification and loss of the pulse energy from E1(τ), the energy of a fundamental soliton of width τ. This dispersive wave is resonantly enhanced at specific wavelengths by the periodicity over a cavity round trip, yielding a characteristic sideband spectrum seen in subpicosecond F8L’s.1–3

© 1993 Optical Society of America

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