Prof. Nicolas Godbout Profile

Prof. Nicolas Godbout

Professor at Polytechnique Montréal

SPIE Involvement:

Author

Publications (29)

Proceedings Article | 20 March 2023 Presentation

SuPyMode: an open-source Python library for design and optimization of fiber couplers

Martin Poinsinet de Sivry-Houle, Caroline Boudoux, Nicolas Godbout

Proceedings Volume PC12415, PC1241508 (2023) https://doi.org/10.1117/12.2648145

KEYWORDS: Visual process modeling, Visual optics, Specialty optical fibers, Physics, Optical components, Fiber couplers, Optical simulations, Optical fibers, Fiber optics, Visualization

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Proceedings Article | 9 March 2023 Presentation

Short mode-selective photonic lanterns using double-clad fibers

Rodrigo Itzamna Becerra Deana, Martin Poinsinet de Sivry, Simon Bolduc Beaudoin, Caroline Boudoux, Stéphane Virally, Nicolas Godbout

Proceedings Volume PC12428, PC1242802 (2023) https://doi.org/10.1117/12.2650376

KEYWORDS: Optical fibers, Single mode fibers, Graded index fibers, Biomedical optics, Telecommunications, Astronomy, Multimode fibers

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Proceedings Article | 7 March 2022 Presentation

PyMieSim: an open source library for fast and flexible light scattering simulations

Martin Poinsinet de Sivry-Houle, Pierre-Alexandre Aube, Nicolas Godbout, Caroline Boudoux

Proceedings Volume PC11958, PC1195802 (2022) https://doi.org/10.1117/12.2603775

KEYWORDS: Light scattering, Scattering, Absorption, Sensors, Refractive index, Optical spheres, Spectroscopy, Mie scattering, Computer programming languages, Computer programming

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Proceedings Article | 9 March 2020 Presentation

All-fiber few-mode OCT using a photonic lantern (Conference Presentation)

Martin Poinsinet de Sivry, Simon Bolduc Beaudoin, Xavier Attendu, Nicolas Godbout, Caroline Boudoux

Proceedings Volume 11228, 112280A (2020) https://doi.org/10.1117/12.2549025

KEYWORDS: Optical coherence tomography, Particles, Scattering, Interferometry, Mirrors, Titanium dioxide, Optical resolution

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Proceedings Article | 17 May 2018 Paper

Raman-based cw supercontinuum generation in a fiber ring laser with low-output coupling

Muhammad Assad Arshad, Alexander Hartung, Mikaёl Leduc, Nicolas Godbout, Hartmut Bartelt, Matthias Jäger

Proceedings Volume 10683, 106833F (2018) https://doi.org/10.1117/12.2311626

KEYWORDS: Diodes, Fiber lasers, Supercontinuum generation, Wave propagation, Continuous wave operation, Dispersion, Raman scattering, Signal attenuation, Semiconductor lasers, Feedback signals

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Proceedings Article | 23 April 2018 Presentation + Paper

Towards combined optical coherence tomography and hyper-spectral imaging for gastrointestinal endoscopy

Xavier Attendu, Camille Crunelle, Martin Poinsinet de Sivry-Houle, Billie Maubois, Joanie Urbain, Chloe Turrell, Mathias Strupler, Nicolas Godbout, Caroline Boudoux

Proceedings Volume 10487, 1048707 (2018) https://doi.org/10.1117/12.2288772

KEYWORDS: Optical coherence tomography, Endoscopy, Hyperspectral systems, Cancer, Imaging systems, Near infrared, Hyperspectral imaging, Tissues, Prototyping, Visible radiation

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Proceedings Article | 20 March 2018 Presentation

Fabrication and characterization of all-fiber 120-degree optical hybrids (Conference Presentation)

Marie-Helene Bussieres-Hersir, Nicolas Godbout

Proceedings Volume 10561, 105610O (2018) https://doi.org/10.1117/12.2290736

KEYWORDS: Hybrid optics, Phase measurement, Optical communications, Telecommunications, Optical fibers, Glasses, Tolerancing

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SPIE Journal Paper | 12 October 2017

Dimension reduction technique using a multilayered descriptor for high-precision classification of ovarian cancer tissue using optical coherence tomography: a feasibility study

Catherine St. Pierre, Wendy-Julie Madore, Étienne De Montigny, Dominique Trudel, Caroline Boudoux, Nicolas Godbout, Anne-Marie Mes-Masson, Kurosh Rahimi, Frédéric Leblond

JMI, Vol. 4, Issue 04, 041306, (October 2017) https://doi.org/10.1117/12.10.1117/1.JMI.4.4.041306

KEYWORDS: Optical coherence tomography, Tissues, Image classification, Cancer, Ovarian cancer, Tissue optics, Multilayers, Binary data, Dimension reduction, Image segmentation

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SPIE Journal Paper | 20 July 2017 Open Access

Morphologic three-dimensional scanning of fallopian tubes to assist ovarian cancer diagnosis

Wendy-Julie Madore, Etienne De Montigny, Andréanne Deschênes, Fouzi Benboujja, Mikaël Leduc, Anne-Marie Mes-Masson, Diane M. Provencher, Kurosh Rahimi, Caroline Boudoux, Nicolas Godbout

JBO, Vol. 22, Issue 07, 076012, (July 2017) https://doi.org/10.1117/12.10.1117/1.JBO.22.7.076012

KEYWORDS: Fallopian tube, Optical coherence tomography, Ovarian cancer, 3D scanning, Tumors, Imaging systems, Tissue optics, Endoscopy, Surgery

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Proceedings Article | 21 February 2017 Paper

All fiber nonlinear microscopy at 1550 nm using a double-clad fiber coupler

Thomas Perrillat-Bottonet, Mathias Strupler, Mikael Leduc, Lucas Majeau, Nicolas Godbout, Caroline Boudoux

Proceedings Volume 10069, 1006927 (2017) https://doi.org/10.1117/12.2249927

KEYWORDS: Multiphoton microscopy, Microscopy, Fiber couplers, Nonlinear optics, Second-harmonic generation, Confocal microscopy, Biomedical optics, Dispersion, Optical parametric oscillators, Microscopes

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Proceedings Article | 15 February 2017 Presentation + Paper

Combined optical coherence tomography and hyper-spectral imaging

Xavier Attendu, Robin Guay-Lord, Mathias Strupler, Nicolas Godbout, Caroline Boudoux

Proceedings Volume 10057, 1005706 (2017) https://doi.org/10.1117/12.2252924

KEYWORDS: Optical filters, Visible radiation, Prisms, Mirrors, Imaging systems, Fiber couplers, Image resolution, Microscopes, Optical coherence tomography, Hyperspectral systems, Endoscopy, Signal processing, Multimodal imaging, Tissue optics, Medicine, Ophthalmology, Gastroenterology, Diagnostics

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SPIE Journal Paper | 9 November 2016 Open Access

Combined optical coherence tomography and hyperspectral imaging using a double-clad fiber coupler

Robin Guay-Lord, Xavier Attendu, Kristen Lurie, Lucas Majeau, Nicolas Godbout, Audrey Bowden, Mathias Strupler, Caroline Boudoux

JBO, Vol. 21, Issue 11, 116008, (November 2016) https://doi.org/10.1117/12.10.1117/1.JBO.21.11.116008

KEYWORDS: Optical coherence tomography, Hyperspectral imaging, Absorption, Fiber couplers, Tissues, Cladding, Reflectivity, Spectroscopy, RGB color model, 3D acquisition

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Proceedings Article | 15 March 2016 Paper

Pseudo-circulator implemented as a multimode fiber coupler

F. Bulota, P. Bélanger, M. Leduc, C. Boudoux, N. Godbout

Proceedings Volume 9744, 974412 (2016) https://doi.org/10.1117/12.2213378

KEYWORDS: Multimode fibers, Fabrication, Fiber couplers, Optical fibers, Interfaces, Waveguides, Cladding, Visible radiation, Geometrical optics, Signal attenuation, Diffusers

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Proceedings Article | 10 March 2016 Paper

Combined optical coherence tomography and hyper-spectral imaging using a double clad fiber coupler

Robin Guay-Lord, Kristen Lurie, Xavier Attendu, Lucas Mageau, Nicolas Godbout, Audrey Ellerbee Bowden, Mathias Strupler, Caroline Boudoux

Proceedings Volume 9701, 97010X (2016) https://doi.org/10.1117/12.2211758

KEYWORDS: Hyperspectral imaging, Optical coherence tomography, Fiber couplers, Tissues, Multimodal imaging, Hyperspectral systems, In vivo imaging, Endoscopy, Optical imaging, Image resolution, Standards development, Spectroscopy, Absorption, Endoscopes, Cladding, 3D acquisition, Signal processing, Image enhancement

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Proceedings Article | 7 March 2016 Paper

Towards in vivo laser coagulation and concurrent optical coherence tomography through double-clad fiber devices

Kathy Beaudette, William Lo, Martin Villiger, Milen Shishkov, Nicolas Godbout, Brett Bouma, Caroline Boudoux

Proceedings Volume 9701, 97010B (2016) https://doi.org/10.1117/12.2209382

KEYWORDS: Optical coherence tomography, Laser marking, In vivo imaging, Laser coagulation, Cladding, Multimodal imaging, Biopsy, Fiber lasers, Pulsed laser operation, Imaging systems, Zemax, Esophagus, GRIN lenses

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Proceedings Article | 4 March 2016 Presentation + Paper

Multimodal ophthalmic imaging using swept source spectrally encoded scanning laser ophthalmoscopy and optical coherence tomography

Joseph Malone, Mohamed El-Haddad, Logan Tye, Lucas Majeau, Nicolas Godbout, Andrew Rollins, Caroline Boudoux, Yuankai Tao

Proceedings Volume 9693, 96930Q (2016) https://doi.org/10.1117/12.2212859

KEYWORDS: Optical coherence tomography, Imaging systems, Scanning laser ophthalmoscopy, Ophthalmic imaging, In vivo imaging, Confocal microscopy, Image registration, Speckle, Multimodal imaging, Diagnostics, Mirrors, Scanners

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Proceedings Article | 29 February 2016 Paper

Morphologic 3D scanning of fallopian tubes to assist ovarian cancer diagnosis

Wendy-Julie Madore, Etienne De Montigny, Andréanne Deschênes, Fouzi Benboujja, Mikael Leduc, Anne-Marie Mes-Masson, Diane Provencher, Kurosh Rahimi, Caroline Boudoux, Nicolas Godbout

Proceedings Volume 9689, 96894D (2016) https://doi.org/10.1117/12.2211204

KEYWORDS: Fallopian tube, Ovarian cancer, Optical coherence tomography, Surgery, 3D scanning, Imaging systems, Diagnostics, Fiber optics, Ovary, Tumors, Endoscopy, Tissues, Uterus, Animal model studies

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Proceedings Article | 20 May 2013 Paper

Optical fibre Bragg grating cladding mode sensors

M. Baiad, M. Gagné, E. de Montigny, W.-J. Madore, N. Godbout, C. Boudoux, R. Kashyap

Proceedings Volume 8794, 87941H (2013) https://doi.org/10.1117/12.2026073

KEYWORDS: Cladding, Sensors, Fiber Bragg gratings, Refractive index, Optical fibers, Fiber couplers, Signal attenuation, Signal analysis, Remote sensing, Photorefractive polymers

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Proceedings Article | 22 February 2011 Paper

Picosecond programmable laser sweeping over 50 mega-wavelengths per second

Youngjae Kim, Bryan Burgoyne, Nicolas Godbout, Alain Villeneuve, Guy Lamouche, Sébastien Vergnole

Proceedings Volume 7914, 79140Y (2011) https://doi.org/10.1117/12.875552

KEYWORDS: Picosecond phenomena, Dispersion, Optical coherence tomography, Pulsed laser operation, Point spread functions, Microscopy, Human-machine interfaces, Spectroscopy, Mode locking, Complex systems

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Proceedings Article | 20 May 2009 Paper

Analysis of the birefringence of solid-core air-silica microstructured fibers

Laurent Labonté, Elio Pone, Maksim Skorobogatiy, Nicolas Godbout, Suzanne Lacroix, Dominique Pagnoux

Proceedings Volume 7357, 73570N (2009) https://doi.org/10.1117/12.820603

KEYWORDS: Birefringence, Optical fibers, Finite element methods, Silica, Dielectrics, Cladding, Polarization, Solids, Manufacturing, Waveguides

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Proceedings Article | 12 August 2008 Paper

Propagating arbitrarily shaped pulses in a nonlinear normally dispersive fiber using moments

Bryan Burgoyne, Nicolas Godbout, Suzanne Lacroix

Proceedings Volume 7099, 70991V (2008) https://doi.org/10.1117/12.807213

KEYWORDS: Dispersion, Gaussian pulse, Numerical simulations, Pulse shaping, Shape analysis, Nonlinear optics, Fiber lasers, Computer simulations, Optical fibers, Phase shift keying

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We use the method of moments to calculate the propagation of an arbitrarily shaped pulse in a nonlinear dispersive fiber. By assuming that the pulse is linearly chirped, we are able to determine analytically the evolution of the second order moments (representing the duration, bandwidth and chirp of the pulse) along propagation regardless of the initial pulse shape. The evolution of the moments is given by an implicit equation and several invariants. These invariants allow an easy estimation of the different pulse parameters. The linear chirp approximation implies that the arbitrary pulse shape remains invariant along propagation but allows to calculate the propagation in both dispersion regimes from the same solution. The solution show an oscillatory behavior in the anomalous dispersion regime and a monotonic behavior in the normal dispersion regime. In both regimes the calculations are compared to numerical split-step simulations and are shown to agree for propagation over many dispersion and nonlinear lengths. While this method describes well the evolution of the pulse duration, bandwidth and chirp, we need to proceed differently to find the evolution of the pulse shape. From these propagation equations for the moments, we derive an approximate implicit solution describing the propagation of a Gaussian pulse in the normal dispersion regime. This approximate solution describes the pulse shaping toward a parabola that the pulse undergoes along propagation. A good agreement is found between the pulse obtained from numerically solving the implicit equation and the split-step propagation of the same pulse. Numerically solving the implicit analytical function describing the pulse is much faster than using purely numerical simulations, which becomes time consuming for highly chirped pulses with large bandwidths over long propagation distances. These and other results suggest that pulse shaping along propagation is only adequately modeled by implicit functions.

Proceedings Article | 18 October 2006 Paper

Tunable micro-electromechanical grating in silicon

Yves-Alain Peter, Fatou Binetou Koné, Jonathan Masson, Nicolas Godbout

Proceedings Volume 6376, 637604 (2006) https://doi.org/10.1117/12.690773

KEYWORDS: Silicon, Silicon carbide, Reflectivity, Actuators, Diffraction gratings, Fiber Bragg gratings, Reflectors, Microelectromechanical systems, Refractive index, Transmittance

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Proceedings Article | 20 December 2004 Paper

Simultaneous measurement of spontaneous and stimulated Raman scattering in optical fibers

Eric Saulnier, Nicolas Godbout, Suzanne Lacroix

Proceedings Volume 5577, (2004) https://doi.org/10.1117/12.567447

KEYWORDS: Raman spectroscopy, Raman scattering, Optical fibers, Scattering, Data modeling, Silica, Terahertz radiation, Wavelength division multiplexing, Polarization, Signal attenuation

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Proceedings Article | 16 November 2004 Paper

Polarization evolution and periodic power oscillation in recirculating loops

Yannick Lize, Nicolas Godbout, Suzanne Lacroix

Proceedings Volume 5579, (2004) https://doi.org/10.1117/12.567556

KEYWORDS: Polarization, Signal attenuation, Signal to noise ratio, Jones vectors, Oscilloscopes, Statistical analysis, Jones matrices, Dispersion, Interference (communication), Receivers

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Proceedings Article | 15 December 2003 Paper

Multiuser quantum key distribution using wavelength division multiplexing

Gilles Brassard, Felix Bussieres, Nicolas Godbout, Suzanne Lacroix

Proceedings Volume 5260, (2003) https://doi.org/10.1117/12.543338

KEYWORDS: Quantum key distribution, Wavelength division multiplexing, Networks, Sensors, Network architectures, Modulators, Visibility, Polarization, Single photon detectors, Quantum cryptography

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Proceedings Article | 2 February 2001 Paper

Advances in the understanding of thermal poling in silica glasses

Nicolas Godbout, Suzanne Lacroix

Proceedings Volume 4216, (2001) https://doi.org/10.1117/12.414105

KEYWORDS: Glasses, Silica, Electrodes, Ions, Diffusion, Lenses, Optical testing, Sodium, Thermography, Second-harmonic generation

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Proceedings Article | 10 January 1996 Paper

Application of ferrocene-based polymers as variable index materials in fiber optic gas sensors

Mehdi Shadaram, Juan Martinez, Fernando Garcia, David Tavares, Arnaud Symon, Nicolas Godbout, Suzanne Lacroix

Proceedings Volume 2695, (1996) https://doi.org/10.1117/12.229943

KEYWORDS: Polymers, Sensors, Refractive index, Gas sensors, Fiber optics sensors, Fiber optics, Thin films, Nitrogen, Gases, Molecules

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Proceedings Article | 5 October 1995 Paper

Molecular studies and plastic optical fiber device structures for nonlinear optical applications

Carl Dirk, Aruna Nagarur, Jin Lu, Lixia Zhang, Priya Kalamegham, Joe Fonseca, Saytha Gopalan, Scott Townsend, Gabriel Gonzalez, Patrick Craig, Monica Rosales, Leslie Green, Karen Chan, Robert Twieg, Susan Ermer, Doris Leung, Steven Lovejoy, Suzanne Lacroix, Nicolas Godbout, Etienne Monette

Proceedings Volume 2527, (1995) https://doi.org/10.1117/12.222782

KEYWORDS: Cladding, Polymer optical fibers, Chemical species, Phase only filters, Error analysis, Polymethylmethacrylate, Electroluminescence, Electro optics, Molecules, Electro optical modeling

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SPIE Journal Paper | 1 September 1993

Guided-wave solutions and properties of arbitrary slab waveguides exhibiting Kerr nonlinearities

Nicolas Godbout, S. Iraj Najafi

OE, Vol. 32, Issue 09, (September 1993) https://doi.org/10.1117/12.10.1117/12.145071

KEYWORDS: Waveguides, Cladding, Visualization, Refractive index, Interfaces, Bistability, Dispersion, Solitons, Optical engineering, Wave propagation

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Showing 5 of 29 publications

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