Long length/small core step-index silicon core fiber fabricated by improved powder-in-tube process

Autor: Mustafa Ordu, Frédéric Gérôme, Jean-Marc Blondy, André Lecomte, Armand Passelergue, Aymeric Pastre, Sébastien Rougier, Christine Restoin
Přispěvatelé: Photonique Fibre et Sources Cohérentes (XLIM-PHOT), XLIM (XLIM), Université de Limoges (UNILIM)-Centre National de la Recherche Scientifique (CNRS)-Université de Limoges (UNILIM)-Centre National de la Recherche Scientifique (CNRS), IRCER - Axe 3 : organisation structurale multiéchelle des matériaux (IRCER-AXE3), Institut de Recherche sur les CERamiques (IRCER), Institut des Procédés Appliqués aux Matériaux (IPAM), Université de Limoges (UNILIM)-Université de Limoges (UNILIM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Institut des Procédés Appliqués aux Matériaux (IPAM), Université de Limoges (UNILIM)-Université de Limoges (UNILIM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), OSA, Gerome, Frédéric
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Zdroj: CLEO Europe 2019
Conference on Laser and Electro-Optics /Europe (CLEO/Europe-EQEC 2019)
Conference on Laser and Electro-Optics /Europe (CLEO/Europe-EQEC 2019), OSA, Jun 2019, Munich, Germany. Paper CE-7.6
Popis: The development of silicon-core fibers have drawn strong interest over the last decade. Indeed, silicon is a material offering interesting properties such as mid-wave infrared transparency (1–7 μm), high refractive index (3.48 @ 1.55 μm) and large third order non linearity (≈ 1.5×10−13 cm2/W). Until now, three fabrication processes have been developed to achieve glass-clad silicon-core fibers: the high-pressure microfluidic chemical deposition method [1], the molten core method from silicon rods [2] and the powder-in-tube method [3]. This last one shows a very high potential to achieve hybrid optical fibers as it allows not only to use a wide range of materials but it is also compatible with the stack-and-draw process; in this way, many different designs of fibers can be especially drawn. Unfortunately, fibers fabricated by this method are very short, only a few centimetres long because of the mechanical stresses accumulation at the interface between the two materials which have different thermal expansion coefficients (Si: 3×10−6 K−1; SiO 2 : 5×10−7 K−1), and because of the presence of air between the grains.
Databáze: OpenAIRE