Optimization of the Core Compound for Ytterbium Ultra-Short Cavity Fiber Lasers
Highly ytterbium-, aluminum- and phosphorus-co-doped silica fibers with low optical losses were fabricated by the MCVD method, utilizing an all-gas-phase deposition technique. Optical and laser properties of the active fibers with a phosphosilicate and aluminophosphosilicate glass cores doped with 1...
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| Format: | Article |
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MDPI AG
2023-06-01
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| Series: | Fibers |
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| Online Access: | https://www.mdpi.com/2079-6439/11/6/52 |
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| author | Andrey Rybaltovsky Mikhail Yashkov Alexey Abramov Andrey Umnikov Mikhail Likhachev Denis Lipatov |
| author_facet | Andrey Rybaltovsky Mikhail Yashkov Alexey Abramov Andrey Umnikov Mikhail Likhachev Denis Lipatov |
| author_sort | Andrey Rybaltovsky |
| collection | DOAJ |
| description | Highly ytterbium-, aluminum- and phosphorus-co-doped silica fibers with low optical losses were fabricated by the MCVD method, utilizing an all-gas-phase deposition technique. Optical and laser properties of the active fibers with a phosphosilicate and aluminophosphosilicate glass cores doped with 1.85 mol% and 1.27 mol% Yb<sub>2</sub>O<sub>3</sub> were thoroughly investigated. With the help of hydrogen loading, it was possible to induce highly reflective Bragg grating in both fiber samples using the standard phase-mask technique and 193 nm-UV laser irradiation. The ultra-short (less than 2 cm long) Fabry–Perot laser cavities were fabricated by inscribing two fiber Bragg gratings (highly and partially reflective FBGs) directly in the core of the fiber samples. The highest pump-to-signal conversion efficiency of 47% was demonstrated in such laser configuration using phosphosilicate fiber. The reasons for the low efficiency of aluminophosphosilicate fiber are discussed. |
| first_indexed | 2024-03-11T02:29:02Z |
| format | Article |
| id | doaj.art-af2e00532e014fd58ddbc987c28e6423 |
| institution | Directory Open Access Journal |
| issn | 2079-6439 |
| language | English |
| last_indexed | 2024-03-11T02:29:02Z |
| publishDate | 2023-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Fibers |
| spelling | doaj.art-af2e00532e014fd58ddbc987c28e64232023-11-18T10:21:46ZengMDPI AGFibers2079-64392023-06-011165210.3390/fib11060052Optimization of the Core Compound for Ytterbium Ultra-Short Cavity Fiber LasersAndrey Rybaltovsky0Mikhail Yashkov1Alexey Abramov2Andrey Umnikov3Mikhail Likhachev4Denis Lipatov5Prokhorov General Physics Institute of the Russian Academy of Sciences, Dianov Fiber Optics Research Center, 119333 Moscow, RussiaG. G. Devyatykh Institute of Chemistry of High-Purity Substances, Russian Academy of Sciences, St. Tropinina 49, 603951 Nizhny Novgorod, RussiaG. G. Devyatykh Institute of Chemistry of High-Purity Substances, Russian Academy of Sciences, St. Tropinina 49, 603951 Nizhny Novgorod, RussiaG. G. Devyatykh Institute of Chemistry of High-Purity Substances, Russian Academy of Sciences, St. Tropinina 49, 603951 Nizhny Novgorod, RussiaProkhorov General Physics Institute of the Russian Academy of Sciences, Dianov Fiber Optics Research Center, 119333 Moscow, RussiaG. G. Devyatykh Institute of Chemistry of High-Purity Substances, Russian Academy of Sciences, St. Tropinina 49, 603951 Nizhny Novgorod, RussiaHighly ytterbium-, aluminum- and phosphorus-co-doped silica fibers with low optical losses were fabricated by the MCVD method, utilizing an all-gas-phase deposition technique. Optical and laser properties of the active fibers with a phosphosilicate and aluminophosphosilicate glass cores doped with 1.85 mol% and 1.27 mol% Yb<sub>2</sub>O<sub>3</sub> were thoroughly investigated. With the help of hydrogen loading, it was possible to induce highly reflective Bragg grating in both fiber samples using the standard phase-mask technique and 193 nm-UV laser irradiation. The ultra-short (less than 2 cm long) Fabry–Perot laser cavities were fabricated by inscribing two fiber Bragg gratings (highly and partially reflective FBGs) directly in the core of the fiber samples. The highest pump-to-signal conversion efficiency of 47% was demonstrated in such laser configuration using phosphosilicate fiber. The reasons for the low efficiency of aluminophosphosilicate fiber are discussed.https://www.mdpi.com/2079-6439/11/6/52ytterbium-doped fiberphosphosilicate glassaluminophosphosilicate glassfiber Bragg gratingultra-short cavity fiber lasersingle-frequency fiber laser |
| spellingShingle | Andrey Rybaltovsky Mikhail Yashkov Alexey Abramov Andrey Umnikov Mikhail Likhachev Denis Lipatov Optimization of the Core Compound for Ytterbium Ultra-Short Cavity Fiber Lasers Fibers ytterbium-doped fiber phosphosilicate glass aluminophosphosilicate glass fiber Bragg grating ultra-short cavity fiber laser single-frequency fiber laser |
| title | Optimization of the Core Compound for Ytterbium Ultra-Short Cavity Fiber Lasers |
| title_full | Optimization of the Core Compound for Ytterbium Ultra-Short Cavity Fiber Lasers |
| title_fullStr | Optimization of the Core Compound for Ytterbium Ultra-Short Cavity Fiber Lasers |
| title_full_unstemmed | Optimization of the Core Compound for Ytterbium Ultra-Short Cavity Fiber Lasers |
| title_short | Optimization of the Core Compound for Ytterbium Ultra-Short Cavity Fiber Lasers |
| title_sort | optimization of the core compound for ytterbium ultra short cavity fiber lasers |
| topic | ytterbium-doped fiber phosphosilicate glass aluminophosphosilicate glass fiber Bragg grating ultra-short cavity fiber laser single-frequency fiber laser |
| url | https://www.mdpi.com/2079-6439/11/6/52 |
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