Femtosecond laser direct inscription of mid-IR transmitting waveguides in BGG glasses
| Autor: | Jean-Philippe Bérubé, Sandra Helena Messaddeq, Réal Vallée, Arthur Le Camus, Younes Messaddeq, Yannick Petit, Lionel Canioni |
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| Přispěvatelé: | Centre d'Optique, Photonique et Laser (COPL), Université Laval [Québec] (ULaval), Centre d'Etudes Lasers Intenses et Applications (CELIA), Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Bordeaux (UB), Institut de Chimie de la Matière Condensée de Bordeaux (ICMCB), Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Institut Polytechnique de Bordeaux-Université de Bordeaux (UB), Natural Sciences and Engineering Research Council of Canada (NSERC) (IRCPJ469414-13), Canada Foundation for Innovation (CFI) (37422), French National Research Agency (ANR), in the framework of the 'Investments for the Future' (LAPHIA ANR - n ° ANR-10-IDEX-03-02)., ANR-10-IDEX-0003,IDEX BORDEAUX,Initiative d'excellence de l'Université de Bordeaux(2010), Université de Bordeaux (UB)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Centre National de la Recherche Scientifique (CNRS), Université de Bordeaux (UB)-Institut Polytechnique de Bordeaux-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
Germanium dioxide
Materials science business.industry 02 engineering and technology [CHIM.MATE]Chemical Sciences/Material chemistry 021001 nanoscience & nanotechnology Laser 01 natural sciences Electronic Optical and Magnetic Materials law.invention 010309 optics Core (optical fiber) chemistry.chemical_compound Wavelength Optics chemistry law Absorption band 0103 physical sciences Femtosecond Optoelectronics Photonics 0210 nano-technology business Refractive index |
| Zdroj: | Optical Materials Express Optical Materials Express, OSA pub, 2017, 7 (9), pp.3124-3135. ⟨10.1364/OME.7.003124⟩ Optical Materials Express, 2017, 7 (9), pp.3124-3135. ⟨10.1364/OME.7.003124⟩ |
| ISSN: | 2159-3930 |
| Popis: | International audience; A detailed investigation of the photo-inscription of waveguides in barium gallo-germanate (BGG, BaO, GeO2, Ga2O3) glass is presented. Upon irradiation of BGG glass samples of different contents of germanium dioxide with a femtosecond laser pulse train, positive refractive index changes are produced over a wide range of exposure conditions. Waveguides with a controllable diameter ranging from 4 to 35 µm and a maximum index change up to 10−2 were inscribed. A glass sample with custom molecular composition was purified to remove hydroxyl ions and reduce the strong absorption band near 3 µm. A careful tailoring of the writing conditions allowed for the inscription of low-loss waveguides supporting only two transverse modes at the wavelength of 2.78 µm. An upper bound for the propagation losses of 0.5 ± 0.1 dB/cm was determined, showing the great potential of the BGG glass family for the fabrication of core waveguides operating in the 2-4 µm spectral range. Our results actually open a pathway towards the integration of mid-IR photonic devices based on the BGG glass family. |
| Databáze: | OpenAIRE |
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