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

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 anti reflection-coated SOA output facets is derived and si...

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Bibliographic Details
Published in:IEEE journal of quantum electronics 2002-11, Vol.38 (11), p.1493-1502
Main Authors: Champagne, A., Camel, J., Maciejko, R., Kasunic, K.J., Adams, D.M., Tromborg, B.
Format: Article
Language:English
Subjects:
Applied sciences
Circuit properties
Computer simulation
Degradation
Distributed feedback devices
Electric, optical and optoelectronic circuits
Electronics
Exact sciences and technology
Finite element method
Finite element methods
Fundamental areas of phenomenology (including applications)
Green's function methods
Integrated optics. Optical fibers and wave guides
Laser feedback
Laser modes
Lasers
Mathematical analysis
Mathematical models
Numerical models
Optical and optoelectronic circuits
Optics
Physics
Quantum electronics
Reflectivity
Semiconductor lasers
Semiconductor lasers
laser diodes
Semiconductor optical amplifiers
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Summary: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 anti reflection-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.
ISSN:0018-9197
1558-1713
DOI:10.1109/JQE.2002.804263