Linewidth broadening in a distributed feedback laser integrated with a semiconductor optical amplifier

A. Champagne, J. Camel, R. Maciejko, K.J. Kasunic, D.M. Adams, Bjarne Tromborg

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

The problem of the linewidth degradation in systems using distributed-feedback lasers together with strained-layer multi-quantum-well semiconductor optical amplifiers (SOAs) is examined. A modified expression for the linewidth in the case of antireflection-coated SOA output facets is derived and simulation results are given in the case of output facets with a nonvanishing reflectivity. A numerical model combining finite-element calculations in the transverse x-y plane and a longitudinal model based on the Green's function method is used for that purpose.
Original languageEnglish
JournalIEEE Journal of Quantum Electronics
Volume38
Issue number11
Pages (from-to)1493-1502
ISSN0018-9197
Publication statusPublished - 2002

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