Stability Boundaries in Laterally-Coupled Pairs of Semiconductor Lasers

Stability Boundaries in Laterally-Coupled Pairs of Semiconductor Lasers

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 sepa...

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Main Authors: Martin Vaughan, Hadi Susanto, Nianqiang Li, Ian Henning, Mike Adams
Format: Article
Language:English
Published: MDPI AG 2019-06-01
Series:Photonics
Subjects:
semiconductor lasers
coupled lasers
stability
normal modes
coupled modes
Online Access:https://www.mdpi.com/2304-6732/6/2/74
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spelling doaj-19a4b3471e3b416291c1f28214ad0c1a2020-11-25T01:13:36ZengMDPI AGPhotonics2304-67322019-06-01627410.3390/photonics6020074photonics6020074Stability Boundaries in Laterally-Coupled Pairs of Semiconductor LasersMartin Vaughan0Hadi Susanto1Nianqiang Li2Ian Henning3Mike Adams4School of Computer Engineering and Electronics Engineering, University of Essex, Wivenhoe Park, Colchester CO4 3SQ, UKDepartment of Mathematical Sciences, University of Essex, Wivenhoe Park, Colchester CO4 3SQ, UKSchool of Optoelectronic Science and Engineering, Soochow University, Suzhou 215006, ChinaSchool of Computer Engineering and Electronics Engineering, University of Essex, Wivenhoe Park, Colchester CO4 3SQ, UKSchool of Computer Engineering and Electronics Engineering, University of Essex, Wivenhoe Park, Colchester CO4 3SQ, UKThe 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.https://www.mdpi.com/2304-6732/6/2/74semiconductor laserscoupled lasersstabilitynormal modescoupled modes
collection DOAJ
language English
format Article
sources DOAJ
author Martin Vaughan
Hadi Susanto
Nianqiang Li
Ian Henning
Mike Adams
spellingShingle Martin Vaughan
Hadi Susanto
Nianqiang Li
Ian Henning
Mike Adams
Stability Boundaries in Laterally-Coupled Pairs of Semiconductor Lasers
Photonics
semiconductor lasers
coupled lasers
stability
normal modes
coupled modes
author_facet Martin Vaughan
Hadi Susanto
Nianqiang Li
Ian Henning
Mike Adams
author_sort Martin Vaughan
title Stability Boundaries in Laterally-Coupled Pairs of Semiconductor Lasers
title_short Stability Boundaries in Laterally-Coupled Pairs of Semiconductor Lasers
title_full Stability Boundaries in Laterally-Coupled Pairs of Semiconductor Lasers
title_fullStr Stability Boundaries in Laterally-Coupled Pairs of Semiconductor Lasers
title_full_unstemmed Stability Boundaries in Laterally-Coupled Pairs of Semiconductor Lasers
title_sort stability boundaries in laterally-coupled pairs of semiconductor lasers
publisher MDPI AG
series Photonics
issn 2304-6732
publishDate 2019-06-01
description 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.
topic semiconductor lasers
coupled lasers
stability
normal modes
coupled modes
url https://www.mdpi.com/2304-6732/6/2/74
work_keys_str_mv AT martinvaughan stabilityboundariesinlaterallycoupledpairsofsemiconductorlasers
AT hadisusanto stabilityboundariesinlaterallycoupledpairsofsemiconductorlasers
AT nianqiangli stabilityboundariesinlaterallycoupledpairsofsemiconductorlasers
AT ianhenning stabilityboundariesinlaterallycoupledpairsofsemiconductorlasers
AT mikeadams stabilityboundariesinlaterallycoupledpairsofsemiconductorlasers
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