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Effects of resonant mode coupling on optical Characteristics of InGaN-GaN-AlGaN lasers

2005; IEEE Photonics Society; Volume: 41; Issue: 4 Linguagem: Inglês

10.1109/jqe.2005.843619

ISSN

1558-1713

Autores

Gennady A. Smolyakov, Petr G. Eliseev, Marek Osiński,

Tópico(s)

Acoustic Wave Resonator Technologies

Resumo

The phenomenon of resonant mode coupling is modeled and numerically investigated in InGaN-based multiple-quantum-well laser structures. It is shown that under resonant conditions, the internal mode coupling can lead to severe distortions of both near- and far-field characteristics. Taking into account the carrier-induced change of the modal effective index for the lasing mode, we show that the resonant internal mode coupling can result in a strongly nonlinear dependence of the modal gain on injection current, with possible region of negative differential modal gain.

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