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Open AccessFeature PaperArticle

Stability Boundaries in Laterally-Coupled Pairs of Semiconductor Lasers

1
School of Computer Engineering and Electronics Engineering, University of Essex, Wivenhoe Park, Colchester CO4 3SQ, UK
2
Department of Mathematical Sciences, University of Essex, Wivenhoe Park, Colchester CO4 3SQ, UK
3
School of Optoelectronic Science and Engineering, Soochow University, Suzhou 215006, China
*
Author to whom correspondence should be addressed.
Photonics 2019, 6(2), 74; https://doi.org/10.3390/photonics6020074
Received: 30 May 2019 / Revised: 20 June 2019 / Accepted: 20 June 2019 / Published: 25 June 2019
(This article belongs to the Special Issue Semiconductor Laser Dynamics: Fundamentals and Applications)
The dynamic behaviour of coupled pairs of semiconductor lasers is studied using normal-mode theory, applied to one-dimensional (slab) and two-dimensional (circular cylindrical) real index confined structures. It is shown that regions of stable behaviour depend not only on pumping rate and laser separation, but also on the degree of guidance in the structures. Comparison of results between normal-mode and coupled-mode theories for these structures leads to the tentative conclusion that the accuracy of the latter is determined by the strength of self-overlap and cross-overlap of the symmetric and antisymmetric normal modes in the two lasers. View Full-Text
Keywords: semiconductor lasers; coupled lasers; stability; normal modes; coupled modes semiconductor lasers; coupled lasers; stability; normal modes; coupled modes
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MDPI and ACS Style

Vaughan, M.; Susanto, H.; Li, N.; Henning, I.; Adams, M. Stability Boundaries in Laterally-Coupled Pairs of Semiconductor Lasers. Photonics 2019, 6, 74.

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