title: Modified rod-in-tube for high-NA tellurite glass fiber fabrication: materials and technologies.
abstract: In this paper, we report the whole fabrication process for high-numerical aperture (NA) tellurite glass fibers from material preparation to preform fabrication, and eventually, fiber drawing. A tellurite-based high-NA (0.9) magneto-optical glass fiber was drawn successfully and characterized. First, matchable core and cladding glasses were fabricated and matched in terms of physical properties. Second, a uniform bubble-free preform was fabricated by means of a modified rod-in-tube technique. Finally, the fiber drawing process was studied and optimized. The high-NA fibers (∅(core), 40-50 μm and ∅(cladding), 120-130 μm) so obtained were characterized for their geometrical and optical properties.
authors.forename: Qiuling
authors.initials: Q
authors.lastname: Chen
authors.forename: Hui
authors.initials: H
authors.lastname: Wang
authors.forename: Qingwei
authors.initials: Q
authors.lastname: Wang
authors.forename: Qiuping
authors.initials: Q
authors.lastname: Chen
authors.forename: Yinlei
authors.initials: Y
authors.lastname: Hao