Temporal Cavity Soliton Interaction in Passively Mode-Locked Semiconductor Lasers

Weak interactions of temporal cavity solitons resulting from gain saturation and recovery in a delay differential model of a long cavity semiconductor laser were studied numerically and analytically using an asymptotic approach. This paper shows that in addition to the usual soliton repulsion leadin...

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Main Author: Andrei G. Vladimirov
Format: Article
Language:English
Published: MDPI AG 2023-07-01
Series:Optics
Subjects:
Online Access:https://www.mdpi.com/2673-3269/4/3/31
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author Andrei G. Vladimirov
author_facet Andrei G. Vladimirov
author_sort Andrei G. Vladimirov
collection DOAJ
description Weak interactions of temporal cavity solitons resulting from gain saturation and recovery in a delay differential model of a long cavity semiconductor laser were studied numerically and analytically using an asymptotic approach. This paper shows that in addition to the usual soliton repulsion leading to a harmonic mode-locking regime, soliton attraction is also possible in a laser with a nonzero linewidth enhancement factor. It is shown numerically that this attraction can lead either to pulse merging or to pulse bound-state formation.
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spelling doaj.art-722f134df7ba445ca777d58ab8b8fedf2023-11-19T12:20:36ZengMDPI AGOptics2673-32692023-07-014343344610.3390/opt4030031Temporal Cavity Soliton Interaction in Passively Mode-Locked Semiconductor LasersAndrei G. Vladimirov0Weierstrass Institute, Mohrenstr. 39, 10117 Berlin, GermanyWeak interactions of temporal cavity solitons resulting from gain saturation and recovery in a delay differential model of a long cavity semiconductor laser were studied numerically and analytically using an asymptotic approach. This paper shows that in addition to the usual soliton repulsion leading to a harmonic mode-locking regime, soliton attraction is also possible in a laser with a nonzero linewidth enhancement factor. It is shown numerically that this attraction can lead either to pulse merging or to pulse bound-state formation.https://www.mdpi.com/2673-3269/4/3/31mode-lockingsemiconductor laserdelay differential equation modeltemporal cavity solitons
spellingShingle Andrei G. Vladimirov
Temporal Cavity Soliton Interaction in Passively Mode-Locked Semiconductor Lasers
Optics
mode-locking
semiconductor laser
delay differential equation model
temporal cavity solitons
title Temporal Cavity Soliton Interaction in Passively Mode-Locked Semiconductor Lasers
title_full Temporal Cavity Soliton Interaction in Passively Mode-Locked Semiconductor Lasers
title_fullStr Temporal Cavity Soliton Interaction in Passively Mode-Locked Semiconductor Lasers
title_full_unstemmed Temporal Cavity Soliton Interaction in Passively Mode-Locked Semiconductor Lasers
title_short Temporal Cavity Soliton Interaction in Passively Mode-Locked Semiconductor Lasers
title_sort temporal cavity soliton interaction in passively mode locked semiconductor lasers
topic mode-locking
semiconductor laser
delay differential equation model
temporal cavity solitons
url https://www.mdpi.com/2673-3269/4/3/31
work_keys_str_mv AT andreigvladimirov temporalcavitysolitoninteractioninpassivelymodelockedsemiconductorlasers