Mr. Tommy Boilard Profile

Tommy Boilard

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Publications (8)

Proceedings Article | 13 March 2024 Presentation + Paper

Single-mode radiation-balanced Yb-doped silica fiber laser and amplifier

Enkeleda Balliu, Bailey Meehan, Mary Ann Cahoon, Thomas Hawkins, John Ballato, Peter Dragic, Tommy Boilard, Lauris Talbot, Martin Bernier, Michel J. Digonnet

Proceedings Volume 12902, 1290203 (2024) https://doi.org/10.1117/12.3010148

KEYWORDS: Fiber lasers, Fiber amplifiers, Temperature metrology, Optical fibers, Ytterbium, Quenching, Reflectivity, Fluorescence, Single mode fibers, Ions

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Proceedings Article | 15 March 2023 Presentation + Paper

Cooling Yb-doped silica fibers and fiber lasers using anti-Stokes pumping

Benjamin Frey, Enkeleda Balliu, Pierre-Baptiste Vigneron, Jenny Knall, Thomas Hawkins, Bailey Meehan, Mary Ann Cahoon, John Ballato, Magnus Engholm, Peter Dragic, Nanjie Yu, Tommy Boilard, Martin Bernier, Michel J. Digonnet

Proceedings Volume 12437, 1243707 (2023) https://doi.org/10.1117/12.2655634

KEYWORDS: Ytterbium, Quenching, Nanoparticles, Aluminum, Optical fibers, Fiber lasers, Temperature metrology, Silica, Fluorescence, Ions

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Proceedings Article | 30 May 2022 Presentation

Direct-laser-writing of arbitrary long waveguides in optical fibers

Matthieu Bellec, Léo Colliard, Guillaume Bilodeau, Tommy Boilard, Réal Vallée, Martin Bernier

Proceedings Volume PC12142, PC121420G (2022) https://doi.org/10.1117/12.2621654

KEYWORDS: Waveguides, Optical fibers, Refractive index, Glasses, Fiber Bragg gratings, Femtosecond phenomena, Wave propagation, Photonic integrated circuits, Optical properties, Laser irradiation

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Proceedings Article | 4 March 2022 Presentation + Paper

Anti-Stokes cooling in silica and nanoparticle-doped silicate fibers

Pierre-Baptiste Vigneron, Bailey Meehan, Mary Ann Cahoon, Thomas Hawkins, John Ballato, Peter Dragic, Magnus Engholm, Tommy Boilard, Martin Bernier, Michel J. Digonnet

Proceedings Volume 12018, 1201805 (2022) https://doi.org/10.1117/12.2615738

KEYWORDS: Optical fibers, Ytterbium, Ions, Heat treatments, Silica, Nanoparticles, Absorption, Fiber lasers, Temperature metrology, Luminescence

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The recent reports of laser cooling in Yb-doped aluminosilicate fibers and silica preforms have opened up the field of optical refrigeration and radiation-balanced lasers to the enormous realm of silica fiber lasers and amplifiers. To increase the cooling efficiency achieved in these materials, it is critical to identify host compositions that improve the Yb³⁺-ion properties in the directions of low concentration quenching, short radiative lifetime, and a long-wavelength absorption tail that extends as far as possible above the zero-phonon line. In this on-going quest, nanoparticle-doped fibers offer a promising technique to modify the chemical environment of the Yb³⁺ ions and achieve some of these properties. In this work, three fibers in which the Yb³⁺ ions are initially encapsulated in CaF_2, SrF_2, or BaF₂nanoparticles were fabricated using a solution-doping technique, and their laser-cooling properties evaluated experimentally and analyzed. The CaF₂ fiber and the SrF₂ fiber were successfully cooled at atmospheric pressure when pumped with a continuous-wave laser at the near-optimum wavelength of 1040 nm. The measured maximum temperature change from room temperature was -26.2 mK for the CaF₂ fiber at a pump power absorption level of 90 mW/m, and -16.7 mK at 66 mW/m for the SrF₂ fiber. The BaF₂ fiber did not cool, but it warmed only slightly, indicating that it was not far from cooling. Analysis of the measured dependence of the fiber temperature change on pump power with a model enabled extraction of the fiber’s critical quenching concentration and residual absorptive loss due to impurities. Comparison of these values to the values reported for an aluminosilicate fiber and fiber preforms that cooled shows that the CaF₂ and SrF₂ fibers faired as well as the fiber, and better than the preforms, in terms of quenching, but that they had a higher absorptive loss. This study establishes the significant research potential of nanoparticle-doped fibers in the search for efficient laser-cooling silica hosts.

Proceedings Article | 5 April 2021 Presentation + Paper

Observation of anti-Stokes-fluorescence cooling in a ZBLAN fiber with a Yb-doped cladding

Pierre-Baptiste Vigneron, Jennifer Knall, Tommy Boilard, Martin Bernier, Michel J. F. Digonnet

Proceedings Volume 11702, 117020A (2021) https://doi.org/10.1117/12.2589940

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Proceedings Article | 5 March 2021 Presentation

Experimental demonstration of a cooled silica fiber amplifier

Jennifer Knall, Magnus Engholm, Tommy Boilard, Martin Bernier, Michel Digonnet

Proceedings Volume 11702, 1170209 (2021) https://doi.org/10.1117/12.2589941

KEYWORDS: Optical fibers, Fiber amplifiers, Optical amplifiers, Temperature metrology, Luminescence, Ions

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Proceedings Article | 17 April 2020 Paper

8.5-fm resonances in an amplified slow-light fiber Bragg grating for high-precision metrology

Pierre-Baptiste Vigneron, Tommy Boilard, Anna Broome, Enkeleda Balliu, Martin Bernier, Michel Digonnet

Proceedings Volume 11296, 112962P (2020) https://doi.org/10.1117/12.2552658

KEYWORDS: Fiber Bragg gratings, Signal attenuation, Erbium, Modulation, Signal detection, Absorption, Ions, Resonators, Single mode fibers, Femtosecond phenomena

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Proceedings Article | 11 June 2018 Paper

In-situ fiber temperature sensor for anti-Stokes cooling measurements in doped fibers

Arushi Arora, Mina Esmaeelpour, Jennifer Knall, Jean-Simon Frenière , Tommy Boilard, Martin Bernier, Michel J. Digonnet

Proceedings Volume 10550, 105500M (2018) https://doi.org/10.1117/12.2291135

KEYWORDS: Fiber Bragg gratings, Temperature metrology, Sensors, Temperature sensors, Fiber optics sensors, Fiber lasers, Luminescence, Spatial resolution, Optical fibers, Signal detection

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Showing 5 of 8 publications

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