F/Yb-codoped sol-gel silica glasses: toward tailoring the refractive index for the achievement of high-power fiber lasers
| Autor: | Bruno Capoen, Laurent Bigot, Géraud Bouwmans, Olivier Vanvincq, Andy Cassez, Hicham El Hamzaoui, Marc Douay, Mohamed Bouazaoui |
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| Přispěvatelé: | Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523 (PhLAM), Université de Lille-Centre National de la Recherche Scientifique (CNRS), Institut de Recherche sur les Composants logiciels et matériels pour l'Information et la Communication Avancé - USR 3380 (IRCICA), ANR-12-RMNP-0019,NANOFIBER,NANOstructuration de matériaux destinés à la réalisation d'une nouvelle génération de FIBres optiques amplificatrices dopées Erbium and Erbium/Ytterbium (NANOFIBER)(2012), Photonique (Photonique), Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Université de Lille-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
All-silica fiber
Materials science Optical fiber [PHYS.PHYS]Physics [physics]/Physics [physics] Plastic-clad silica fiber business.industry 02 engineering and technology Microstructured optical fiber 021001 nanoscience & nanotechnology 01 natural sciences Atomic and Molecular Physics and Optics law.invention 010309 optics Optics law Fiber laser 0103 physical sciences Refractive index contrast [SPI.OPTI]Engineering Sciences [physics]/Optics / Photonic 0210 nano-technology business Hard-clad silica optical fiber ComputingMilieux_MISCELLANEOUS Photonic-crystal fiber |
| Zdroj: | Optics Letters Optics Letters, Optical Society of America-OSA Publishing, 2017, 42 (7), pp.1408-1411. ⟨10.1364/OL.42.001408⟩ Optics Letters, Optical Society of America-OSA Publishing, 2017, 42 (7), pp.1408. ⟨10.1364/OL.42.001408⟩ Optics Letters, 2017, 42 (7), pp.1408-1411. ⟨10.1364/OL.42.001408⟩ |
| ISSN: | 0146-9592 1539-4794 |
| Popis: | Accurate control of both the doping distribution inside the fiber core and the low refractive index contrast between the fiber core and cladding materials is essential for the development of high-power fiber lasers based on the use of single-mode large-mode-area (LMA) optical fibers. Herein, sol-gel monolithic F/Yb3+-codoped silica glasses were prepared from porous large silica xerogels doped with ytterbium salt solution, which had been subjected to fluorination with hexafluoroethane gas, before subsequent sintering. The fluorine content inside the doped glass has been varied by adjusting the fluorination duration. The space homogeneity of fluorine and ytterbium concentrations in the cylindrical preforms has been checked by chemical analysis and Raman spectroscopy. Moreover, the glass with the lowest fluorine content has been successfully integrated as a core material in a microstructured optical fiber made using the stack-and-draw method. This fiber was tested in an all-fiber cavity laser architecture to evaluate potential lasing performances of the F/Yb3+-codoped silica glass. It presents a maximum efficiency of 70.4%, achieved at 1031 nm from a 1.16 m length fiber. These results confirm the potentialities of the obtained F/Yb3+-codoped glasses for the fabrication of LMA optical fiber lasers. |
| Databáze: | OpenAIRE |
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