Twin core nonlinear couplers with gain and loss
- 1 January 1992
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Journal of Quantum Electronics
- Vol. 28 (1), 239-245
- https://doi.org/10.1109/3.119519
Abstract
Twin core nonlinear couplers that include gain and loss are examined. Of the various structures (ranging from couplers composed of two active cores and two lossy cores to those composed of one active or lossy core and one conventional core) considered, the most interesting case is the coupler composed of one core with a certain amount of gain and the other core with an equal amount of loss where ideal low power switching is possible in a comparatively short coupler. The presence of gain in one core is found to be responsible for reduction in switching power and/or shortening in the device length, while the introduction of the loss in the other core plays the role of idealizing switching. A physical model is also presented to explain the demonstrated merits based on the operation of linear couplers with gain and loss.<>Keywords
This publication has 8 references indexed in Scilit:
- High gain Er3+ -doped fibre amplifier pumped by 820nm GaAlAs laser diodesElectronics Letters, 1990
- Nonlinear fiber couplers: switches and polarization beam splittersOptics Letters, 1989
- Femotosecond switching in a dual-core-fiber nonlinear couplerOptics Letters, 1988
- Ultrafast all-optical switching in a dual-core fiber nonlinear couplerApplied Physics Letters, 1987
- Effects of saturation and loss on nonlinear directional couplersApplied Physics Letters, 1987
- Stability analysis of nonlinear coherent couplingJournal of Applied Physics, 1985
- The nonlinear coherent couplerIEEE Journal of Quantum Electronics, 1982
- Coupled-Mode Theory for Optical FibersJournal of the Optical Society of America, 1972