| Download | - View final version: Type-II Bragg gratings with a 300 nm period fabricated using tightly focused femtosecond pulses and the phase mask technique (PDF, 9.1 MiB)
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| DOI | Resolve DOI: https://doi.org/10.1364/OE.538476 |
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| Author | Search for: Hnatovsky, Cyril1ORCID identifier: https://orcid.org/0000-0003-1838-9643; Search for: Rahnama, Abdullah1ORCID identifier: https://orcid.org/0000-0003-1272-3890; Search for: Lausten, Rune1; Search for: De Silva, Manjula1ORCID identifier: https://orcid.org/0009-0007-6823-4646; Search for: Mihailov, Stephen J.1ORCID identifier: https://orcid.org/0000-0002-6144-0937 |
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| Affiliation | - National Research Council of Canada. Quantum and Nanotechnologies
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| Format | Text, Article |
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| Subject | effective refractive index; femtosecond pulses; laser beams; nanosecond pulses; nonlinear absorption; ultrafast lasers |
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| Abstract | 1000°C-resistant Bragg gratings (i.e., Type-II Bragg gratings) with a 300 nm period are fabricated in non-photosensitized silica-based optical fibers using tightly focused ultraviolet/visible (400 nm) femtosecond pulses and a phase mask. Five millimeter-long Bragg gratings with a -10 dB transmission dip and -0.1 dB off-resonance insertion loss are demonstrated. Inscription of such gratings is also possible through protective acrylate coatings on the fiber. The Bragg wavelength drift and changes in the transmission of the fiber Bragg gratings are monitored in the course of isothermal annealing performed at 1000°C for 120 hours. |
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| Publication date | 2024-09-17 |
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| Publisher | Optica Publishing Group |
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| Licence | |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | 72a61604-8a66-48d8-80df-27200c9bef14 |
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| Record created | 2025-04-23 |
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| Record modified | 2025-04-23 |
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