Stability boundaries in laterally-coupled pairs of semiconductor lasers

Martin Vaughan; Hadi Susanto; Nianqiang Li; Ian Henning; Mike Adams

doi:10.3390/PHOTONICS6020074

Stability boundaries in laterally-coupled pairs of semiconductor lasers

Martin Vaughan, Hadi Susanto, Nianqiang Li, Ian Henning, Mike Adams

Mathematics

Research output: Contribution to journal › Article › peer-review

6 Scopus citations

Abstract

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.

Original language	British English
Article number	74
Journal	Photonics
Volume	6
Issue number	2
DOIs	https://doi.org/10.3390/PHOTONICS6020074
State	Published - 1 Jun 2019

Keywords

Coupled lasers
Coupled modes
Normal modes
Semiconductor lasers
Stability

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title = "Stability boundaries in laterally-coupled pairs of semiconductor lasers",

abstract = "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.",

keywords = "Coupled lasers, Coupled modes, Normal modes, Semiconductor lasers, Stability",

author = "Martin Vaughan and Hadi Susanto and Nianqiang Li and Ian Henning and Mike Adams",

note = "Funding Information: Funding: This research was funded by the Engineering and Physical Sciences Research Council (EPSRC) under Grant No. EP/M024237/1. Publisher Copyright: {\textcopyright} 2019 by the authors.",

year = "2019",

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doi = "10.3390/PHOTONICS6020074",

language = "British English",

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T1 - Stability boundaries in laterally-coupled pairs of semiconductor lasers

AU - Vaughan, Martin

AU - Susanto, Hadi

AU - Li, Nianqiang

AU - Henning, Ian

AU - Adams, Mike

PY - 2019/6/1

Y1 - 2019/6/1

N2 - 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.

AB - 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.

KW - Coupled lasers

KW - Coupled modes

KW - Normal modes

KW - Semiconductor lasers

KW - Stability

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SN - 2304-6732

VL - 6

JO - Photonics

JF - Photonics

IS - 2

M1 - 74

ER -

Stability boundaries in laterally-coupled pairs of semiconductor lasers

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