Prof. Alexandre Locquet Profile

Prof. Alexandre Locquet

at CNRS

SPIE Involvement:

Author

Area of Expertise:

photonics , nonlinear dynamics , Terahertz imaging , lasers , Terahertz optics , Chaos

Websites:

Company Website

Publications (22)

Proceedings Article | 20 June 2024 Presentation + Paper

Optimizing semiconductor laser chaos with precise control of double optical feedback

Robbe de Mey, Spencer Jolly, Alexandre Locquet, Martin Virte

Proceedings Volume 13002, 1300202 (2024) https://doi.org/10.1117/12.3021823

KEYWORDS: Semiconductor lasers, Mirrors, Simulations, Chaos, Laser optics, Feedback control, Telecommunications, Photonics

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Proceedings Article | 18 June 2024 Presentation + Paper

Multimodal characterization of optical properties of urinary stones ex vivo by machine-learning classification methods based on autofluorescence and integrating sphere measurements data: feasibility study and preliminary results

Marine Amouroux, Clarice Perrin-Mozet, Marie Camonin, Léa Roy, Mélanie Menneglier, Haolian Shi, Alexandre Locquet, Arnaud Marotel, Victor Colas, Christian Daul, Ma'atem Béatrice Caillierez, Jacques Hubert, Walter Blondel

Proceedings Volume 13010, 1301002 (2024) https://doi.org/10.1117/12.3016446

KEYWORDS: Renal calculi, Scattering, Absorption, Optical properties, Integrating spheres, Diagnostics, Transmittance, Scatter measurement, Reflectivity, Optical spheres

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Proceedings Article | 25 May 2022 Presentation

Processing capabilities and low-pass filtering effect in a delay-based photonic reservoir computer

Gleb Danilenko, Anton Kovalev, Alexandre Locquet, Damien Rontani, Evgeny Viktorov

Proceedings Volume PC12141, PC1214102 (2022) https://doi.org/10.1117/12.2622347

KEYWORDS: Linear filtering, Optical filters, Optical computing, Optoelectronics, Semiconductor lasers, Nonlinear filtering, Neural networks, Feedback loops, Dynamical systems, Bandpass filters

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Proceedings Article | 20 May 2022 Presentation + Paper

Optical square waves in a multiquantum-well laser with nonlinear optoelectronic feedback

Md Shariful Islam, A. V. Kovalev, E. A. Viktorov, D. S. Citrin, A. Locquet

Proceedings Volume 12141, 1214103 (2022) https://doi.org/10.1117/12.2624503

KEYWORDS: Optoelectronics, Semiconductor lasers, Optical amplifiers, Feedback signals, Feedback loops, Nonlinear optics, Electronic filtering, Amplifiers

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Proceedings Article | 1 April 2020 Presentation + Paper

Predicting chaotic time series using optoelectronic feedback laser

Pavel Dmitriev, Anton Kovalev, Alexandre Locquet, David Citrin, Evgeny Viktorov, Damien Rontani

Proceedings Volume 11356, 113560U (2020) https://doi.org/10.1117/12.2556368

KEYWORDS: Optoelectronics, Optical filters, Semiconductor lasers, Electronic filtering, Feedback loops, Positive feedback, Modulation, Optical computing, Computing systems

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Proceedings Article | 26 February 2019 Presentation + Paper

Low-noise x-band tunable microwave generator based on external cavity lasers

Michael Wishon, Daeyoung Choi, Evgeny Viktorov, Yanne Chembo, Alexandre Locquet

Proceedings Volume 10912, 109120H (2019) https://doi.org/10.1117/12.2509660

KEYWORDS: X band, Microwave radiation, Tunable lasers, Mirrors, Laser optics, Oscillators, Semiconductor lasers, Laser stabilization, Laser applications, Optoelectronics

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Proceedings Article | 26 February 2019 Presentation + Paper

Coexisting periodic regimes in semiconductor lasers with optical feedback

Michael Wishon, Anton Kovalev, Daeyoung Choi, David Citrin, Evgeny Viktorov, Alexandre Locquet

Proceedings Volume 10912, 109120O (2019) https://doi.org/10.1117/12.2510499

KEYWORDS: Semiconductor lasers, Laser optics, Quantum wells, Wave plates, Feedback loops

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Proceedings Article | 24 May 2018 Presentation + Paper

Terahertz pulsed imaging reveals the stratigraphy of a seventeenth-century oil painting

A. Locquet, J. Dong, M. Melis, D. Citrin

Proceedings Volume 10677, 106771Z (2018) https://doi.org/10.1117/12.2306771

KEYWORDS: Terahertz radiation, Binary data, Refractive index, Deconvolution, Reflectometry, Terahertz spectroscopy, Reflectivity, Visible radiation, Infrared imaging, Millimeter wave imaging

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Proceedings Article | 23 May 2018 Presentation

External-cavity based optoelectronic oscillator stabilization (Conference Presentation)

Michael Joe Wishon, D. Choi, Tobias Niebur, N. Webster, Y. Chembo, E. Viktorov, D. Citrin, Alexandre Locquet

Proceedings Volume 10682, 1068211 (2018) https://doi.org/10.1117/12.2306088

KEYWORDS: Phase shift keying, Optoelectronics, Oscillators, Laser stabilization, Picosecond phenomena, X band, Tunable lasers, Beam splitters, Photodiodes, Semiconductor lasers

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Proceedings Article | 14 May 2018 Presentation

Terahertz imaging for nondestructive testing of materials for aerospace, automotive, and energy (Conference Presentation)

David Citrin, Alexandre Locquet, Junliang Dong

Proceedings Volume 10656, 106561H (2018) https://doi.org/10.1117/12.2305863

KEYWORDS: Millimeter wave imaging, Nondestructive evaluation, Aerospace engineering, Deconvolution, Glasses, Optical coatings, Carbon, Composites, Metals, Multilayers

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Proceedings Article | 9 May 2018 Presentation + Paper

Feedback-induced discretisation of the relaxation oscillation frequency in a semiconductor laser

Anton Kovalev, Bogusław Tykalewicz, David Goulding, Bryan Kelleher, Michael Wishon, Alexandre Locquet, David Citrin, Evgeny Viktorov

Proceedings Volume 10682, 106821I (2018) https://doi.org/10.1117/12.2307393

KEYWORDS: Semiconductor lasers, Quantum dot lasers, Laser resonators, Laser optics, Indium arsenide, Differential equations, Quantum dots

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Proceedings Article | 23 August 2017 Presentation + Paper

Terahertz imaging for subsurface investigation of art paintings

A. Locquet, J. Dong, M. Melis, D. Citrin

Proceedings Volume 10383, 103830Q (2017) https://doi.org/10.1117/12.2274292

KEYWORDS: Terahertz radiation, X-ray imaging, X-rays, Millimeter wave imaging, Terahertz spectroscopy, Spectroscopy, Deconvolution, Imaging spectroscopy, Reflectivity, Optical filters

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Proceedings Article | 28 April 2016 Paper

Reading a CD-ROM without a photodiode

Michael Wishon, G. Mourozeau, K. Ng, A. Sahai, Alexandre Locquet, D. Citrin

Proceedings Volume 9892, 98921Z (2016) https://doi.org/10.1117/12.2227815

KEYWORDS: Semiconductor lasers, Photodiodes, Compact discs, Laser applications, Diffraction gratings, Laser optics, Beam splitters, Mirrors, Reflectivity, Photons, Semiconductor lasers, Compact discs, Photodiodes, Binary data, Sensors, Optical sensors, Digital video discs, Optical design, Signal detection, Destructive interference

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Proceedings Article | 28 April 2016 Paper

Sparse signal reconstruction based on experimental chaos generated by a laser diode

D. Rontani, D. Choi, C.-Y. Chang, A. Locquet, D. Citrin

Proceedings Volume 9892, 98920H (2016) https://doi.org/10.1117/12.2227633

KEYWORDS: Semiconductor lasers, Compressed sensing, Chaos, Data processing, Nonlinear dynamics, Laser optics, Matrices, Signal processing, Polarizers

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Proceedings Article | 2 May 2014 Paper

Fast random bit generation with a single chaotic laser subjected to optical feedback

Nianqiang Li, Byungchil Kim, Daeyoung Choi, V. Chizhevsky, A. Locquet, M. Bloch, D. Citrin, Wei Pan

Proceedings Volume 9134, 913427 (2014) https://doi.org/10.1117/12.2052422

KEYWORDS: Laser optics, Semiconductor lasers, Chaos, Information theory, Numerical simulations, Oscilloscopes, Photonics, Optical communications, Data conversion, Physics

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Proceedings Article | 2 May 2014 Paper

Bifurcation diagram of an external-cavity semiconductor laser: experiment and theory

Byungchil Kim, Nianqiang Li, D. Choi, A. Locquet, D. Citrin

Proceedings Volume 9134, 913425 (2014) https://doi.org/10.1117/12.2052314

KEYWORDS: Semiconductor lasers, Chaos, Oscilloscopes, Laser optics, Gas lasers, Dynamical systems, Switching, Picosecond phenomena, Numerical simulations

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Proceedings Article | 28 April 2010 Paper

Breaking on/off phase-shift keying in optical chaos-based cryptosystems

J. Winebarger, A. Locquet, D. Citrin

Proceedings Volume 7720, 772025 (2010) https://doi.org/10.1117/12.854533

KEYWORDS: Phase shift keying, Receivers, Modulation, Laser systems engineering, Evolutionary algorithms, Semiconductor lasers, Binary data, Error analysis, Information security, Chaos

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Proceedings Article | 27 April 2010 Paper

Chaos multiplexing with external-cavity semiconductor lasers

D. Rontani, A. Locquet, M. Sciamanna, D. Citrin

Proceedings Volume 7720, 77200L (2010) https://doi.org/10.1117/12.854691

KEYWORDS: Multiplexing, Semiconductor lasers, Chaos, Channel projecting optics, Optical communications, Wavelength division multiplexing, Attenuators, Receivers, Complex systems, Mirrors

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Proceedings Article | 19 May 2008 Paper

Masking the time-delay of the chaotic output of an external-cavity laser

D. Rontani, A. Locquet, M. Sciamanna, D. Citrin

Proceedings Volume 6997, 69970D (2008) https://doi.org/10.1117/12.781307

KEYWORDS: Semiconductor lasers, Chaos, Modulation, Information security, Statistical analysis, Nonlinear optics, Telecommunications, Photomasks, Optoelectronics, Laser applications

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Proceedings Article | 14 April 2006 Paper

Delay time identification in chaotic optical systems with two delays

A. Locquet, S. Ortin, V. Udaltsov, L. Larger, D. Citrin, L Pesquera, A. Valle

Proceedings Volume 6184, 61840L (2006) https://doi.org/10.1117/12.662751

KEYWORDS: Feedback loops, Chaos, Complex systems, Semiconductor lasers, Information security, Telecommunications, Optoelectronics, Systems modeling, Optical communications, Laser optics

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Proceedings Article | 12 June 2002 Paper

Comparison of two types of synchronization of unidirectionally coupled external-cavity semiconductor lasers

Alexandre Locquet, Cristina Masoller, Patrice Megret, Michel Blondel

Proceedings Volume 4646, (2002) https://doi.org/10.1117/12.470553

KEYWORDS: Receivers, Transmitters, Semiconductor lasers, Laser optics, Chaos, Optical communications, Telecommunications, Continuous wave operation, Optical components

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Proceedings Article | 9 July 2001 Paper

Cryptographic scheme using chaotic laser diodes subject to incoherent optical feedback

Fabien Rogister, Alexandre Locquet, Didier Pieroux, Patrice Megret, Olivier Deparis, Michel Blondel

Proceedings Volume 4283, (2001) https://doi.org/10.1117/12.432587

KEYWORDS: Semiconductor lasers, Transmitters, Receivers, Chaos, Modulation, Optical communications, Polarization, Control systems, Laser optics, Cryptography

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Showing 5 of 22 publications

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