Modeling of the electromagnetic field and level populations in a waveguide amplifier: a multi-scale time problem.

Abstract

A new algorithm based on auxiliary differential equation and finite difference time domain method (ADE-FDTD method) is presented to model a waveguide whose active layer is constituted of a silica matrix doped with rare-earth and silicon nanograins. The typical lifetime of rare-earth can be as large as some ms, whereas the electromagnetic field in a visible… (More)
DOI: 10.1364/OE.21.024171

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