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Femtosecond laser direct inscription of mid-IR transmitting waveguides in BGG glasses

hal.structure.identifierCentre d'Optique, Photonique et Laser [COPL]
dc.contributor.authorBÉRUBÉ, Jean-Philippe
hal.structure.identifierCentre d'Optique, Photonique et Laser [COPL]
hal.structure.identifierCentre d'Etudes Lasers Intenses et Applications [CELIA]
dc.contributor.authorLE CAMUS, Arthur
hal.structure.identifierCentre d'Optique, Photonique et Laser [COPL]
dc.contributor.authorMESSADDEQ, Sandra Helena
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
hal.structure.identifierCentre d'Etudes Lasers Intenses et Applications [CELIA]
dc.contributor.authorPETIT, Yannick
hal.structure.identifierCentre d'Optique, Photonique et Laser [COPL]
dc.contributor.authorMESSADDEQ, Younès
hal.structure.identifierCentre d'Etudes Lasers Intenses et Applications [CELIA]
dc.contributor.authorCANIONI, Lionel
hal.structure.identifierCentre d'Optique, Photonique et Laser [COPL]
dc.contributor.authorVALLÉE, Réal
dc.date.issued2017
dc.identifier.issn2159-3930
dc.description.abstractEnA 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.
dc.description.sponsorshipInitiative d'excellence de l'Université de Bordeaux - ANR-10-IDEX-0003
dc.language.isoen
dc.publisherOSA pub
dc.title.enFemtosecond laser direct inscription of mid-IR transmitting waveguides in BGG glasses
dc.typeArticle de revue
dc.identifier.doi10.1364/OME.7.003124
dc.subject.halChimie/Matériaux
bordeaux.journalOptical Materials Express
bordeaux.page3124-3135
bordeaux.volume7
bordeaux.issue9
bordeaux.peerReviewedoui
hal.identifierhal-01596312
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01596312v1
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