Finite element modeling of a polarization independent optical amplifier
- 1 May 1992
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in Journal of Lightwave Technology
- Vol. 10 (5) , 626-633
- https://doi.org/10.1109/50.136098
Abstract
Polarization independent amplifiers are studied using a perturbation technique based on the finite element method (FEM). The need for such a sophisticated technique to tackle this practical problem is noted and the impact of user-friendly interfaces is discussed. A function evaluator module, FUNBOX, is used to assess mode overlap integrals and the confinement factor. The FEM is used here to estimate waveguide/amplifier coupling loss, coupling to higher order modes and the polarization sensitivity of an amplifier structure. The result of a tolerancing exercise are presented, indicating the power and usefulness of such modeling tools.Keywords
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