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Proceedings Paper

Side-mode suppression ratio of DFB lasers in the presence of a semiconductor optical amplifier
Author(s): Alain Champagne; Michel Lestrade; Jerome Camel; Romain Maciejko; Bjarne Tromborg; David M. Adams; Keith J. Kasunic
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Paper 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.

Paper Details

Date Published: 15 December 2003
PDF: 10 pages
Proc. SPIE 5260, Applications of Photonic Technology 6, (15 December 2003); doi: 10.1117/12.543828
Show Author Affiliations
Alain Champagne, Ecole Polytechnique de Montreal (Canada)
Michel Lestrade, Ecole Polytechnique de Montreal (Canada)
Jerome Camel, EADS Space Transportation (France)
Romain Maciejko, Ecole Polytechnique de Montreal (Canada)
Bjarne Tromborg, Technical Univ. of Denmark (Denmark)
David M. Adams, Picarro Canada Inc. (Canada)
Keith J. Kasunic, Bookham Technology (Canada)


Published in SPIE Proceedings Vol. 5260:
Applications of Photonic Technology 6
Roger A. Lessard; George A. Lampropoulos, Editor(s)

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