0000000000294611

AUTHOR

Krassimir Panajotov

0000-0002-5215-1228

showing 3 related works from this author

Modelling leaky photonic wires: a mode solver comparison

2006

We present results from a mode solver comparison held within the framework of the European COST P11 project. The structure modelled is a high-index contrast photonic wire in silicon-oninsulator subject to substrate leakage. The methods compared are both in-house developed and commercial, and range from effective index and perturbation methods, over finite-element and finite-difference codes, beam propagation methods, to film mode matching methods and plane wave expansion methods.

Plane waveSubstrate leakageno keywordsIR-67031METIS-248208OpticsBeam propagation methodBoundary value problemElectrical and Electronic EngineeringOptical mode solvers Photonic wires Substrate leakage WaveguidesLeakage (electronics)Physicsbusiness.industryOptical mode solversSolverPhotonic wiresIOMS-PCS: PHOTONIC CRYSTAL STRUCTURESAtomic and Molecular Physics and OpticsFinite element methodElectronic Optical and Magnetic MaterialsEWI-9572IOMS-SNS: SENSORSPlane wave expansionPhotonicsbusinessWaveguides
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Phase-bistable patterns and cavity solitons induced by spatially periodic injection into vertical-cavity surface-emitting lasers

2014

Spatial rocking is a kind of resonant forcing able to convert a self-oscillatory system into a phase-bistable, pattern forming system, whereby the phase of the spatially averaged oscillation field locks to one of two values differing by $\ensuremath{\pi}$. We propose the spatial rocking in an experimentally relevant system---the vertical-cavity surface-emitting laser (VCSEL)---and demonstrate its feasibility through analytical and numerical tools applied to a VCSEL model. We show phase bistability, spatial patterns, such as roll patterns, domain walls, and phase (dark-ring) solitons, which could be useful for optical information storage and processing purposes.

Surface (mathematics)PhysicsField (physics)Bistabilitybusiness.industryOscillationPhase (waves)Physics::OpticsÒpticaLaserSEMICONDUCTOR-LASERS; OPTICAL-SYSTEMSAtomic and Molecular Physics and OpticsVertical-cavity surface-emitting laserlaw.inventionOpticslawDYNAMICS; OSCILLATORS; PIXELSSpatial ecologySWIFT-HOHENBERG EQUATION; LOCALIZED STRUCTURES;businessPhysical Review A
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Roadmap on optical rogue waves and extreme events

2016

Nail Akhmediev et al. ; 38 págs.; 28 figs.

:Ciències de la visió::Òptica física [Àrees temàtiques de la UPC]extreme eventsNonlinear opticsFreak-wavesProcess (engineering)Subject (philosophy)Supercontinuum generationPeregrine soliton01 natural sciences010309 opticsOptics0103 physical sciencesZero-dispersion wavelength[NLIN]Nonlinear Sciences [physics]Rogue wave010306 general physicsModulation instabilityComputingMilieux_MISCELLANEOUSPhysicsÒptica no lineal:Física [Àrees temàtiques de la UPC]Nonlinear schrodinger-equationbusiness.industryGinzburg-Landau equationnonlinear opticsRogue wavesOptical rogue wavesrogue wavesextreme events; nonlinear optics; rogue wavesExtreme eventsValue statisticsAtomic and Molecular Physics and OpticsElectronic Optical and Magnetic MaterialsVariety (cybernetics)Photonic crystal fibersWork (electrical)Noise-like pulsesPeregrine solitonbusinessScientific terminology
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