Direct laser writing of a low-loss waveguide with independent control over the transverse dimension and the refractive index contrast between the core and the cladding
In: Optics letters, Jg. 41 (2016-07-30), Heft 15
Online
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Zugriff:
International audience; In this Letter, we present the realization of a low-loss wave- guide in a chalcogenide glass by direct laser writing technique in a particular configuration that allows the independent control over the diameter of the core and the magnitude of the refractive index contrast with the cladding. The wave- guide is of multicore type and composed of 19 channels arranged on a hexagonal lattice. Each channel is obtained by stacking voxels of refractive index variation obtained by static exposure to femtosecond laser pulse burst. The distance between the channels can be used to vary the diameter of the waveguide, while the duration of laser burst controls the magnitude of the effective index and the propagation loss. We demonstrate that it can be reduced down to 0.11 dB/cm
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Direct laser writing of a low-loss waveguide with independent control over the transverse dimension and the refractive index contrast between the core and the cladding
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Autor/in / Beteiligte Person: | Bychkov, Eugene ; Masselin, Pascal ; David Le Coq ; Laboratoire de Physico-Chimie de l'Atmosphère (LPCA) ; Université du Littoral Côte d'Opale (ULCO)-Centre National de la Recherche Scientifique (CNRS) ; Institut des Sciences Chimiques de Rennes (ISCR) ; Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Université de Rennes 1 (UR1) ; Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Ecole Nationale Supérieure de Chimie de Rennes (ENSCR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes) ; Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA) ; Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes) ; Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Ecole Nationale Supérieure de Chimie de Rennes (ENSCR)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS) |
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Zeitschrift: | Optics letters, Jg. 41 (2016-07-30), Heft 15 |
Veröffentlichung: | 2016 |
Medientyp: | unknown |
ISSN: | 1539-4794 (print) ; 0146-9592 (print) |
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