Tapered mismatched couplers
- 1 May 1991
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in Journal of Lightwave Technology
- Vol. 9 (5) , 567-570
- https://doi.org/10.1109/50.79531
Abstract
The criteria for adiabatic power flow along tapered mismatched directional couplers are discussed. The authors present the coupled local normal mode equations for tapered mismatched directional couplers. From these, the authors derive an optimally short profile for obtaining quasi-adiabatic power propagation. Apart from the trivial case where the mismatch is a constant, this is the only known mismatch profile for which analytical solutions of the coupled local normal mode equations exist. Conditions for which an adiabatic coupler can be used to obtain approximately 100% power transfer from one core to the other are also given.Keywords
This publication has 4 references indexed in Scilit:
- Mismatched directional couplersOptics Letters, 1990
- Optical fiber couplers-optimum solution for unequal coresJournal of Lightwave Technology, 1988
- Tapered Optical Directional CouplerIEEE Transactions on Microwave Theory and Techniques, 1975
- Analysis of the Single Tapered Mode CouplerBell System Technical Journal, 1955