Philippe Roy
YOU?
Author Swipe
View article: Optical fiber laser system for torsion measurement using a three-core fiber and a nanocrystal-based reflector
Optical fiber laser system for torsion measurement using a three-core fiber and a nanocrystal-based reflector Open
We report a novel and highly sensitive torsion sensor that integrates a multicore fiber (MCF) within a Sagnac interferometer so that the same MCF segment serves as both the reflective element and the sensing head of a fiber-ring laser. The…
View article: High-sensitivity strain sensor based on two different specialty fibers and the Vernier effect
High-sensitivity strain sensor based on two different specialty fibers and the Vernier effect Open
What we believe to be a novel strain sensor based on a three-core fiber (3MCF-V) and the Vernier effect was developed and characterized, offering a wide strain measurement range and temperature compensation. The sensor combined a Fabry-Per…
View article: Ajit Doval: Strategic Architecture of Intelligence and Deterrence in the 21st Century A Comprehensive Multi-Theoretical Analysis of India's Transformation Under a Master Strategist
Ajit Doval: Strategic Architecture of Intelligence and Deterrence in the 21st Century A Comprehensive Multi-Theoretical Analysis of India's Transformation Under a Master Strategist Open
This comprehensive study examines Ajit Kumar Doval's transformative impact on India's national security architecture through multiple theoretical lenses spanning strategic studies, complexity science, cognitive psychology, systems theory, …
View article: Red Bull Energy Drink: A Comprehensive Analysis of Physiological Effects, Behavioral Patterns, and Psychological Impacts
Red Bull Energy Drink: A Comprehensive Analysis of Physiological Effects, Behavioral Patterns, and Psychological Impacts Open
This paper presents a multi-disciplinary analysis of Red Bull energy drink, examining its physiological, psychological, and behavioral effects through the lens of multiple theoretical frameworks. Using an integrated mixed-methods approach …
View article: Multidirectional Bending Sensor Using Capillary Fibers and Machine Learning for Real-Time Applications
Multidirectional Bending Sensor Using Capillary Fibers and Machine Learning for Real-Time Applications Open
International audience
View article: $β$-delayed neutron spectroscopy of $^{85, 86}$As with MONSTER at IGISOL
$β$-delayed neutron spectroscopy of $^{85, 86}$As with MONSTER at IGISOL Open
The $β$-delayed neutron emission in the $^{85, 86}$As $β$-decays has been measured at the Ion Guide Isotope Separator On Line facility of the Accelerator Laboratory of the University of Jyväskylä. The complete $β$-decays have been studied …
View article: 1.8 mJ pulses at 1560 nm based on a 55 µm core pure-erbium-doped VLMA fiber
1.8 mJ pulses at 1560 nm based on a 55 µm core pure-erbium-doped VLMA fiber Open
Despite the increasing demand for high-energy erbium lasers for LIDAR imaging applications, the scaling of the current Er-Yb co-doped technology is still hindered by a 1 µm parasitic emission. In this study, we present the first, to the be…
View article: Study of In-Line Capillary Fiber Sensor for Uniaxial Transverse Deformation
Study of In-Line Capillary Fiber Sensor for Uniaxial Transverse Deformation Open
International audience
View article: High Resolution Liquid Level Measurement Using a Multisection Interferometer Based on Capillary Fibers
High Resolution Liquid Level Measurement Using a Multisection Interferometer Based on Capillary Fibers Open
International audience
View article: Developing community resilience in the face of COVID-19: case study from the Estrie region, Canada
Developing community resilience in the face of COVID-19: case study from the Estrie region, Canada Open
The COVID-19 pandemic undeniably impacted population health and several aspects of community organization, including service delivery and social cohesion. Intersectoral collaboration and equity, two key dimensions of community resilience, …
View article: Optical Fiber pH Sensors Based on PAni-Coated Microstructured Optical Fibers
Optical Fiber pH Sensors Based on PAni-Coated Microstructured Optical Fibers Open
International audience
View article: Near-Infrared Dual-Comb Spectroscopy of CO<sub>2</sub> and N<sub>2</sub>O with a Discretized Highly Nonlinear Fiber
Near-Infrared Dual-Comb Spectroscopy of CO<sub>2</sub> and N<sub>2</sub>O with a Discretized Highly Nonlinear Fiber Open
International audience
View article: High-Frequency Vibration Sensor Using a Fiber Laser With a Multicore Fiber Interferometer
High-Frequency Vibration Sensor Using a Fiber Laser With a Multicore Fiber Interferometer Open
International audience
View article: Review on High-Efficiency External Cavity Diode Laser for Pr3+Doped Fiber
Review on High-Efficiency External Cavity Diode Laser for Pr3+Doped Fiber Open
Wide tunable range, narrow linewidth, and high resolution are the most demanded for industry, medical science, communication systems, optical coherence tomography, and spectroscopy analysis. External cavity diode laser (ECDL) has been the …
View article: 40 W of supercontinuum generated by a self-pulsed pump-sharing oscillator-amplifier
40 W of supercontinuum generated by a self-pulsed pump-sharing oscillator-amplifier Open
We demonstrate an all-fiber supercontinuum (SC) source delivering up to 40 W of average power ranging from 750 to 2200 nm. The laser source is based on a self-Q-switched pump-sharing oscillator-amplifier. The self-Q-switched master oscilla…
View article: Optical constants of exoplanet haze analogs from 0.3 to 30 µm: Comparative sensitivity between spectrophotometry and ellipsometry
Optical constants of exoplanet haze analogs from 0.3 to 30 µm: Comparative sensitivity between spectrophotometry and ellipsometry Open
We report new optical constants (refractive index, n , and extinction coefficient, k ) for exoplanet haze analogs from 0.3 to 30 µm. The samples were produced in a simulated N 2 -dominated atmosphere with two different abundance ratios of …
View article: Single-Photon Level Dispersive Fourier Transform: Ultrasensitive Characterization of Noise-Driven Nonlinear Dynamics
Single-Photon Level Dispersive Fourier Transform: Ultrasensitive Characterization of Noise-Driven Nonlinear Dynamics Open
Dispersive Fourier transform is a characterization technique that allows directly extracting an optical spectrum from a time domain signal, thus providing access to real-time characterization of the signal spectrum. However, these techniqu…
View article: Investigating the glass structure of Yb<sup>3+</sup>/Al<sup>3+</sup>/P<sup>5+</sup> doped silica preforms prepared by suspension method
Investigating the glass structure of Yb<sup>3+</sup>/Al<sup>3+</sup>/P<sup>5+</sup> doped silica preforms prepared by suspension method Open
Owing to its capability to produce large volume of glass while preserving a high degree of purity and homogeneity, the suspension method was employed here to synthesize a Yb 3+ /Al 3+ /P 5+ doped silica preforms. The glass structure was st…
View article: Stabilization of the bunch position during the control of the microbunching instability in storage rings
Stabilization of the bunch position during the control of the microbunching instability in storage rings Open
International audience
View article: Plug-and-Play Measurement of Chromatic Dispersion by Means of Two-Photon Interferometry
Plug-and-Play Measurement of Chromatic Dispersion by Means of Two-Photon Interferometry Open
International audience
View article: Near-infrared dual-comb spectroscopy of CO2 and N2O with a discretized highly nonlinear fiber
Near-infrared dual-comb spectroscopy of CO2 and N2O with a discretized highly nonlinear fiber Open
In this paper, we introduce an all-fibered dual-comb spectrometer based on a new design of highly nonlinear fiber to efficiently convert frequency combs from 1.55 micron to 2 micron We show that our spectrometer can be used to measure abso…
View article: Ultrasensitive Dispersive Fourier Transform Characterization of Nonlinear Instabilities
Ultrasensitive Dispersive Fourier Transform Characterization of Nonlinear Instabilities Open
International audience
View article: A Photo‐Thermoelectric Twist to Wireless Energy Transfer: Radial Flexible Thermoelectric Device Powered by a High‐Power Laser Beam
A Photo‐Thermoelectric Twist to Wireless Energy Transfer: Radial Flexible Thermoelectric Device Powered by a High‐Power Laser Beam Open
Systems for wireless energy transmission (WET) are gaining prominence nowadays. This work presents a WET system based on the photo‐thermoelectric effect. With an incident laser beam at λ = 1450 nm, a temperature gradient is generated in th…
View article: Plug-and-play measurement of chromatic dispersion by means of two-photon interferometry
Plug-and-play measurement of chromatic dispersion by means of two-photon interferometry Open
Since the first proof-of-principle experiments 25 years ago, quantum metrology has matured from fundamental concepts to versatile and powerful tools in a large variety of research branches, such as gravitational-wave detection, atomic cloc…
View article: Multicore fiber sensors for strain measurement towards traffic monitoring
Multicore fiber sensors for strain measurement towards traffic monitoring Open
In this work, two new interferometric sensors based on multicore optical fibers for the measurement of strain with the
\nultimate goal of traffic monitoring are presented. The operating principle of each sensor relied on the monitoring of …
View article: Noise analysis in a seeded four-wave mixing process generated in a photonic crystal fiber pumped by a chirped pulse
Noise analysis in a seeded four-wave mixing process generated in a photonic crystal fiber pumped by a chirped pulse Open
Four-wave mixing is investigated when chirped pump and signal pulses are injected in a photonic crystal fiber. The shot-to-shot stability of the amplified coherent signal was measured by using the dispersive Fourier transform method and co…
View article: MW-class femtosecond Er-doped tapered fiber amplifier
MW-class femtosecond Er-doped tapered fiber amplifier Open
International audience
View article: Dual-comb spectrometer in the two-micron region using a new design of dispersion-controlled highly nonlinear fibre
Dual-comb spectrometer in the two-micron region using a new design of dispersion-controlled highly nonlinear fibre Open
We present here an experimental demonstration of dual-comb spectroscopy performed around 2 µm, with the use of a new design of dispersion-controlled highly nonlinear fibre. The latter allows us to efficiently convert light via a four-wave …
View article: Ultra-sensitive Dispersive Fourier-Transform Characterization Technique
Ultra-sensitive Dispersive Fourier-Transform Characterization Technique Open
International audience