An AlGaAs waveguide array below the half-bandgap is used to investigate experimentally basic dynamic features of discrete systems. In particular, nonlinear locking of a discrete soliton to its input waveguide was observed for certain input conditions. We also investigated the soliton dynamics as a function of the position of the initial excitation and found that small shifts from the centers of symmetries of the structure could be greatly enhanced. Both effects depend on the geometry of the array and on the beam size.

Waveguide

Position (finance)

10.1364/josab.19.002637

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Citations (96)

Laser Guided Curved Electric Discharges. Technical Report.

Matteo Clerici Yi Hu Carles Milián A. Couairon Demetrios N. Christodoulides

We report laser-guided electric discharges along curved trajectories, and hence around obstacles in line of sight between electrodes. Furthermore, beam self-healing enables direct discharge on target even when the laser beam directly hits the obstacle.

Line (geometry)

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Figure data for "High Parametric Efficiency in Laser Cavity-Soliton Microcombs"

Figshare (2022)

Antonio Cutrona Maxwell Rowley Debayan Das Luana Olivieri Luke Peters

Figure data for: High Parametric Efficiency in Laser Cavity-Soliton Microcombs Antonio Cutrona^1,2, Maxwell Rowley², Debayan Das^1,2 , Luana Olivieri ^1,2, Luke Peters ^1,2, Sai T. Chu³, Brent E. Little⁴, Roberto Morandotti⁵, David J. Moss⁶, Juan Sebastian Totero Gongora^1,2, Marco Peccianti^1,2, and Alessia Pasquazi^1,2,* ¹ Emergent Photonics Research Centre, Dept. of Physics, Loughborough University, Loughborough, LE11 3TU, England, UK ²Emergent Photonics Lab (Epic), Department of Physics and Astronomy, University of Sussex, Brighton, BN1 9QH, UK ³ Department of Physics, City University of Hong Kong, Tat Chee Avenue, Hong Kong, China SAR ⁴ State Key Laboratory of Transient Optics and Photonics, Xi’an Institute of Optics and Precision Mechanics, CAS, Xi’an, China ⁵ INRS-EMT, 1650 Boulevard Lionel-Boulet, Varennes, J3X 1S2, Québec, Canada ⁶ Optical Sciences Centre, Swinburne University of Technology, Hawthorn, VIC 3122, Victoria, Australia *a.pasquazi@lboro.ac.uk Acknowledgements EPSRC UKRI (EP/S001018/1). ERC (851758 TELSCOMBE). DSTL (DSTLX1000142078). INNOVATE UK (IUK project 77087 and 10004412). Leverhulme Trust (ECF-2020-537). ERC (TIMING 725046). NSERC (Alliance and Discovery Grants Schemes), Canada Research Chair and MESI PSR-SIIRI Initiatives in Quebec. Strategic Priority Research Program of the Chinese Academy of Sciences (grant number XDB24030300).

10.6084/m9.figshare.21162538

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Citations (1)

Four-Photon Entanglement Generation with Integrated Optical Frequency Combs

Christian Reimer Michael Kues Piotr Roztocki Lucia Caspani Yaron Bromberg

We demonstrate the generation of four-photon entangled quantum states with integrated optical frequency comb sources. We measure four-photon quantum interference with a visibility above 89%, and perform quantum state tomography revealing a fidelity above 64%.

Quantum sensor

Quantum imaging

Photon entanglement

Visibility

Spontaneous parametric down-conversion

Quantum tomography

Photodetection

10.1364/iprsn.2016.iw3a.5

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Low-power continuous-wave nonlinear optics in doped silica glass integrated waveguide structures

Nature Photonics (2008)

Marcello Ferrera Luca Razzari D. Duchesne Roberto Morandotti Zhenshan Yang

Waveguide

Chalcogenide glass

10.1038/nphoton.2008.228

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Citations (705)

Broadband terahertz plasmonic multiplexers

2022 47th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz) (2023)

Junliang Dong Alessandro Tomasino Giacomo Balistreri Pei You Anton Vorobiov

In this work, we demonstrate a metal-wire-based plasmonic signal processor, which can simultaneously act as a broadband terahertz polarization-division multiplexer and as a novel platform to realize the independent manipulation of polarization-division multiplexed terahertz signals. Such a device opens up new exciting perspectives for exploiting the polarization degree of freedom and ultimately boosting the capacity and spectral efficiency of future terahertz networks.

Boosting

Optical add-drop multiplexer

10.1109/irmmw-thz57677.2023.10299124

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Observation of discrete gap solitons in binary waveguide arrays

Optics Letters (2004)

Roberto Morandotti D. Mandelik Yaron Silberberg J. S. Aitchison Marc Sorel

We report an experimental study of discrete gap solitons in binary arrays of optical waveguides. We observe self-focusing indicating soliton generation when the inclination angle of an input beam is slightly above the Bragg angle and show that the propagation direction of the emerging gap soliton is influenced by the effect of interband momentum exchange.

Waveguide

Momentum (technical analysis)

10.1364/ol.29.002890

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Citations (65)

Ge2Sb2Se4Te1 Metasurface for Enhancing Third-Harmonic Generation in the Mid-Infrared

OSA Advanced Photonics Congress 2021 (2021)

Fuyong Yue Riccardo Piccoli Mikhail Y. Shalaginov Tian Gu Kathleen Richardson

We report on the third-order susceptibilities of the phase change material Ge 2 Sb 2 Se 4 Te 1 in the amorphous and crystalline phase states and demonstrate enhancement of third-harmonic generation in the mid-infrared using a metasurface design.

Third order

Harmonic

Harmonic Analysis

Frequency Conversion

10.1364/iprsn.2021.ith2b.3

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Radio Frequency (RF) Photonic Integrator Based on a Kerr Microcomb

Xingyuan Xu Mengxi Tan Jiayang Wu Andreas Boes Bill Corcoran

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