Adiabatic femtosecond soliton active nonlinear directional coupler
Year: 1992
Authors: Locati F.S., Romagnoli M., Tajani A., Wabnitz S.
Autors Affiliation: Fondazione Ugo Bordoni, Via B. Castiglione 59, Rome, 00142, Italy
Abstract: The optimal all-optical switching, amplification, and temporal compression of femtosecond solitons by means of a nonlinear erbium-doped twin-core fiber may be achieved by suitably tapering the linear coupling strength. We analytically show that, irrespective of the soliton self-frequency shift, tapering may in principle reduce the switching power threshold to arbitrarily low values. A substantial reduction is also demonstrated in a practical case in which the full complex susceptibility of the erbium doping and the Raman response function are considered.
Journal/Review: OPTICS LETTERS
Volume: 17 (19) Pages from: 1394 to: 1396
KeyWords: Optical fibers
DOI: 10.1364/OL.17.001394
Citations: 1
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