Side-mode suppression ratio of DFB lasers in the presence of a semiconductor optical amplifier

Alain Champagne; Michel Lestrade; Jerome Camel; Romain Maciejko; Bjarne Tromborg; David M. Adams; Keith J. Kasunic

doi:10.1117/12.543828

15 December 2003 Side-mode suppression ratio of DFB lasers in the presence of a semiconductor optical amplifier

Alain Champagne, Michel Lestrade, Jerome Camel, Romain Maciejko, Bjarne Tromborg, David M. Adams, Keith J. Kasunic

Proceedings Volume 5260, Applications of Photonic Technology 6; (2003) https://doi.org/10.1117/12.543828
Event: Applications of Photonic Technology, 2003, Quebec City, Québec, Canada

Abstract

The degradation of the side-mode suppression ratio (SMSR) in an integrated DFB laser and semiconductor optical amplifier (SOA) cavity is investigated. A numerical model combining finite element calculations in the x-y plane and a longitudinal model based on the Green's function approach is used for that purpose. An expression is derived that expresses the degradation of the SMSR in the case of a perfectly AR-coated SOA facet. It is shown that the ASE backcoupling can have dramatic effects and degrade and SMSR of single-mode devices to unacceptable levels.

Citation Download Citation

Alain Champagne, Michel Lestrade, Jerome Camel, Romain Maciejko, Bjarne Tromborg, David M. Adams, and Keith J. Kasunic "Side-mode suppression ratio of DFB lasers in the presence of a semiconductor optical amplifier", Proc. SPIE 5260, Applications of Photonic Technology 6, (15 December 2003); https://doi.org/10.1117/12.543828

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