Temporal localized structures in mode-locked vertical external-cavity surface-emitting lasers

Camelin, P.; Schelte, C.; Verschelde, Alexis; Garnache, A.; Beaudoin, G.; Sagnes, I.; Huyet, Guillaume; Javaloyes, J.; Gurevich, Svetlana V.; Giudici, Massimo

doi:10.1364/ol.43.005367

Cited by 23 publications

(15 citation statements)

References 26 publications

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“…The SESAM features a single strained InGaAs/GaAs QW located near the external surface [42] leading to recombination rate approximately two orders of magnitudes faster than the gain medium. It has been engineered for achieving a modulation depth larger than 8 % between the saturated regime and the unsaturated one (saturable losses) which appears to be critical for obtaining bistability of the VECSEL close to threshold [39]. Moreover, the amount of saturable losses experienced by the electromagnetic field inside the cavity is varied by tuning the gain mirror and the SESAM microcavities resonances (λ G and λ SA respectively), δλ = λ SA − λ G ), as detailed in Suppl.…”

Section: Resultsmentioning

confidence: 99%

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Temporal Localized Turing Patterns in Vertical External-Cavity Surface-Emitting Laser

Bartolo

Vigne

Marconi

et al. 2022

Preprint

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Localized structures (LS) in lasers have been actively sought for all-optical information processing. So far, two distinct approaches have been developed for achieving LS: one leading to addressable stationary peaks of light in the transverse section of the resonator, the other leading to addressable mode-locked pulses having a fundamental mode spatial profile. Here we show that temporal localized patterns appear in nearly self-imaging Vertical External-Cavity Surface-Emitting Lasers (VECSELs) with an intracavity saturable absorber. The observed patterns consist of a combination of an axial plane-wave with a set of tilted waves having a hexagonal arrangement in the Fourier space. In the time domain these patterns are individually addressable mode-locked pulses having a duration of about ten picoseconds. The theoretical analysis shows that the emergence of these pulsating patterns is a signature of a Turing instability whose critical wave vector depends on spherical aberrations of the optical elements. Our result shows that large aspect-ratio VECSELs offer unique opportunities for studying spatio-temporal phenomena and it paves the way to the generation of spatio-temporal LS.

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Section: Resultsmentioning

confidence: 99%

“…[13,14,40] together with a broad area pumped section. These two conditions were not fulfilled in [39], leading to a VECSEL that could only be operated in the single-transverse mode emission.…”

Section: Introductionmentioning

confidence: 99%

Temporal Localized Turing Patterns in Vertical External-Cavity Surface-Emitting Laser

Bartolo

Vigne

Marconi

et al. 2022

Preprint

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“…This analysis was performed in the (G 0 /G th , τ 2 /T )-plane. We set (α g , α q ) = (1.5, 0.5) to better match previous works [4,53,56]. Our results are shown in Fig.…”

Section: Emergence Of Lssmentioning

confidence: 97%

Phase incoherent photonic molecules in V-shaped mode-locked VECSELs

Hausen,

Meineck,

Javaloyes

et al. 2020

Preprint

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Passively mode-locked vertical external-cavity surface-emitting semiconductor lasers (VECSELs) composed of a gain chip and a semiconductor saturable absorber have been drawing much attention due to their excellent performance figures. In this work we investigate how localized structures and incoherent, non-locally bound, pulse molecules emerge in a long cavity VECSELs using a V-shaped cavity geometry. We show that these states are bistable with the laser off state and that they are individually addressable. Using a model based upon delay differential equations, we demonstrate that pulse clusters result from the cavity geometry and from the non-local coupling with the gain medium; this leads to locally independent, yet globally bound phase, incoherent photonic molecules. Using a multiple time-scale analysis, we derive an amplitude equation for the field that allows us to predict analytically the distance between the elements of a cluster.

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“…Here, the PML can be archived by closing the external cavity with a semiconductor saturable absorber (SA) mirror 1,6 . Recently, a regime of temporal localization allowing arbitrary low repetition rates was demonstrated in such systems [10][11][12][13][14][15][16] . In this regime in which the cava) Electronic mail: gurevics@uni-muenster.de ity round trip is much larger than the gain recovery time, the PML pulses become individually addressable temporal localized states (TLSs) coexisting with the off solution 10,17,18 .…”

Section: Introductionmentioning

confidence: 99%

Influence of time-delayed feedback on the dynamics of temporal localized structures in passively mode-locked semiconductor lasers

Seidel,

Javaloyes,

Gurevich

2021

Preprint

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Temporal localized structures in mode-locked vertical external-cavity surface-emitting lasers

Cited by 23 publications

References 26 publications

Temporal Localized Turing Patterns in Vertical External-Cavity Surface-Emitting Laser

Temporal Localized Turing Patterns in Vertical External-Cavity Surface-Emitting Laser

Phase incoherent photonic molecules in V-shaped mode-locked VECSELs

Influence of time-delayed feedback on the dynamics of temporal localized structures in passively mode-locked semiconductor lasers

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