Adiabatic femtosecond soliton active nonlinear directional coupler
- 1 September 1992
- journal article
- Published by Optica Publishing Group in Optics Letters
- Vol. 17 (17) , 1213-1215
- https://doi.org/10.1364/ol.17.001213
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.Keywords
This publication has 12 references indexed in Scilit:
- Soliton switching in an erbium-doped nonlinear fiber couplerOptics Letters, 1991
- Weak-pulse-activated coherent soliton switching in nonlinear couplersOptics Letters, 1991
- Observation of the trapping of an optical soliton by adiabatic gain narrowing and its escapePhysical Review Letters, 1990
- Amplification of femtosecond pulses in Er 3+ -doped single-mode optical fibresElectronics Letters, 1990
- Finite-dimensional description of nonlinear pulse propagation in optical-fiber couplers with applications to soliton switchingJournal of the Optical Society of America B, 1990
- Polarization dynamics for solitons in birefringent optical fibersPhysics Letters A, 1989
- Soliton switching in fiber nonlinear directional couplersOptics Letters, 1988
- Theory of the soliton self-frequency shiftOptics Letters, 1986
- The nonlinear coherent couplerIEEE Journal of Quantum Electronics, 1982
- Signal transmission by optical solitons in monomode fiberProceedings of the IEEE, 1981