THE INFLUENCES OF THE ASYMMETRIC GAIN SATURATION EFFECT ON THE DYNAMICS OF InGaAsP FABRY-PEROT LASERS

THE INFLUENCES OF THE ASYMMETRIC GAIN SATURATION EFFECT ON THE DYNAMICS OF InGaAsP FABRY-PEROT LASERS

This paper reports on the influence of the asymmetric gain saturation on the dynamics of InGaAsP Fabry-Perot lasers. The results are obtained by numerical simulations of multimode rate equations. The gain saturation effects that results in competition phenomena among lasing modes are investigated. A...

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Main Authors: DOBROVOLSCHI, Veronica, PIRTAC, Constantin, TRONICU, Vasile
Format: Article
Language:English
Published: Technical University of Moldova 2021-03-01
Series:Journal of Engineering Science (Chişinău)
Subjects:
mode hopping
ingaasp lasers
multimode operation
henry factor
Online Access:https://jes.utm.md/wp-content/uploads/sites/20/2021/04/JES-1-2021_61-66.pdf
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spelling doaj-d4eda14ca7fc4654927357ac25cbf0012021-07-12T15:09:38ZengTechnical University of Moldova Journal of Engineering Science (Chişinău)2587-34742587-34822021-03-01281616610.52326/jes.utm.2021.28(1).05THE INFLUENCES OF THE ASYMMETRIC GAIN SATURATION EFFECT ON THE DYNAMICS OF InGaAsP FABRY-PEROT LASERSDOBROVOLSCHI, Veronica0https://orcid.org/0000-0001-8361-9340PIRTAC, Constantin1https://orcid.org/0000-0002-7775-237XTRONICU, Vasile2https://orcid.org/0000-0002-9164-2249Technical University of Moldova, 168, Stefan cel Mare Str.,MD-2004, Chisinau, Republic of MoldovaTechnical University of Moldova, 168, Stefan cel Mare Str.,MD-2004, Chisinau, Republic of MoldovaTechnical University of Moldova, 168, Stefan cel Mare Str.,MD-2004, Chisinau, Republic of MoldovaThis paper reports on the influence of the asymmetric gain saturation on the dynamics of InGaAsP Fabry-Perot lasers. The results are obtained by numerical simulations of multimode rate equations. The gain saturation effects that results in competition phenomena among lasing modes are investigated. A hopping multimode case is examined in detail. With means of the bifurcation analysis the regions with instabilities in the evolution of the mode intensities have been found. The following operation in the plane of two parameters are obtained: stable single mode, stable multimode, bistabile, and multimode hopping. The pulse traces of amplitudes of modes are plotted to illustrate the observed behaviors. Finally, the influence of linewidth enhancement Henry factor on the laser behavior is investigated.https://jes.utm.md/wp-content/uploads/sites/20/2021/04/JES-1-2021_61-66.pdfmode hoppingingaasp lasersmultimode operationhenry factor
collection DOAJ
language English
format Article
sources DOAJ
author DOBROVOLSCHI, Veronica
PIRTAC, Constantin
TRONICU, Vasile
spellingShingle DOBROVOLSCHI, Veronica
PIRTAC, Constantin
TRONICU, Vasile
THE INFLUENCES OF THE ASYMMETRIC GAIN SATURATION EFFECT ON THE DYNAMICS OF InGaAsP FABRY-PEROT LASERS
Journal of Engineering Science (Chişinău)
mode hopping
ingaasp lasers
multimode operation
henry factor
author_facet DOBROVOLSCHI, Veronica
PIRTAC, Constantin
TRONICU, Vasile
author_sort DOBROVOLSCHI, Veronica
title THE INFLUENCES OF THE ASYMMETRIC GAIN SATURATION EFFECT ON THE DYNAMICS OF InGaAsP FABRY-PEROT LASERS
title_short THE INFLUENCES OF THE ASYMMETRIC GAIN SATURATION EFFECT ON THE DYNAMICS OF InGaAsP FABRY-PEROT LASERS
title_full THE INFLUENCES OF THE ASYMMETRIC GAIN SATURATION EFFECT ON THE DYNAMICS OF InGaAsP FABRY-PEROT LASERS
title_fullStr THE INFLUENCES OF THE ASYMMETRIC GAIN SATURATION EFFECT ON THE DYNAMICS OF InGaAsP FABRY-PEROT LASERS
title_full_unstemmed THE INFLUENCES OF THE ASYMMETRIC GAIN SATURATION EFFECT ON THE DYNAMICS OF InGaAsP FABRY-PEROT LASERS
title_sort influences of the asymmetric gain saturation effect on the dynamics of ingaasp fabry-perot lasers
publisher Technical University of Moldova
series Journal of Engineering Science (Chişinău)
issn 2587-3474
2587-3482
publishDate 2021-03-01
description This paper reports on the influence of the asymmetric gain saturation on the dynamics of InGaAsP Fabry-Perot lasers. The results are obtained by numerical simulations of multimode rate equations. The gain saturation effects that results in competition phenomena among lasing modes are investigated. A hopping multimode case is examined in detail. With means of the bifurcation analysis the regions with instabilities in the evolution of the mode intensities have been found. The following operation in the plane of two parameters are obtained: stable single mode, stable multimode, bistabile, and multimode hopping. The pulse traces of amplitudes of modes are plotted to illustrate the observed behaviors. Finally, the influence of linewidth enhancement Henry factor on the laser behavior is investigated.
topic mode hopping
ingaasp lasers
multimode operation
henry factor
url https://jes.utm.md/wp-content/uploads/sites/20/2021/04/JES-1-2021_61-66.pdf
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