Perturbation analysis for the design of an optically controlled fiber-optic directional coupler
- 1 August 1986
- journal article
- Published by Optica Publishing Group in Optics Letters
- Vol. 11 (8) , 540-542
- https://doi.org/10.1364/ol.11.000540
Abstract
A simple analysis is presented for calculating the change in the effective index of a guided mode in an optical fiber with reduced cladding surrounded by an optically nonlinear medium. Using first-order perturbation theory, the optical power required to alter the phase-matched condition in a fiber directional coupler incorporating a nonlinear medium is therefore calculated. This may then be applied to an optically controlled switch, the output of which may be transferred from one port to another by application of a high-intensity pulse. This method may be applied to other fiber components, for example, fiber gratings and polarizers.Keywords
This publication has 13 references indexed in Scilit:
- Optical pulse compression and breaking in nonlinear fibre couplersOptics Communications, 1986
- Optical Fiber Delay-Line Signal ProcessingIEEE Transactions on Microwave Theory and Techniques, 1985
- Experimental nonlinear optical waveguide deviceElectronics Letters, 1985
- TE modes in a slab waveguide bounded by nonlinear mediaOptics Communications, 1983
- Realization of an InSb bistable device as an optical a n d gate and its use to measure carrier recombination timesApplied Physics Letters, 1983
- The Nonlinear Coherent CouplerIEEE Transactions on Microwave Theory and Techniques, 1982
- Optimization of the effects of power dependent refractive indices in optical waveguidesJournal of Applied Physics, 1981
- Single-mode fiber couplerApplied Optics, 1981
- Signal transmission by optical solitons in monomode fiberProceedings of the IEEE, 1981
- Raman gain in glass optical waveguidesApplied Physics Letters, 1973