Preparation and characterization of microstructured silica holey fibers filled with high-index glasses

Kobelke, Jens; Spittel, Ron; Hoh, Denny; Schuster, Kay; Schwuchow, Anka; Jahn, F.; Just, Florian; Segel, C.; Hartung, Alexander; Kirchhof, J.; Bartelt, Hartmut

doi:10.1117/12.886243

Cited by 1 publication

(1 citation statement)

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“…They include arsenic sulfide 14 , arsenic selenide 15 , glasses containing sulfur, gallium, germanium and antimony 13 . Standard chalcogenide fibers as well as chalcogenide MSFs have also been fabricated from silica whose air holes were filled with chalcogenide glasses 8,16 . Standard chalcogenide fibers are usually drawn from preforms consisting of a glass core and cladding with a different composition inducing a designed decrease of the refractive index in this part in comparison with the refractive index of the core.…”

Section: Introductionmentioning

confidence: 99%

Optical fibers of As₂S₃glasses: preparation and characterization

et al. 2015

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Chalcogenide glasses based on arsenic sulfide (As 2 S 3 ), arsenic selenide or telluride are known to exhibit high optical nonlinearities which are necessary for advanced applications in telecommunications. Both, standard optical fibers and microstructured fibers have been fabricated from chalcogenide glasses. In this paper we deal with As 2 S 3 solid core fibers and capillary fibers coated with a polymer jacket of UV acrylate. The guiding mechanism employing the reflection on boundary of high-index glass (a refractive index of about 2.4) and hollow cavity (n=1) was confirmed by ray-optic calculations. Fibers were drawn from input As 2 S 3 rods and tubes. The rods were prepared from extra pure arsenic and sulfur by their melting in an evacuated ampoule. The tubes were prepared by using rotational melting technique in an evacuated ampoule rotating at 1600 rpm. Rods and tubes were elongated into fibers by using a fiber drawing facilities for preparation of optical fibers from soft optical glasses. Temperatures in a range 300-400 °C and drawing velocities of about 0.1 m/s were used. Fibers were prepared either without any polymeric jacket or they were provided by a jacket of UV acrylate (n ∼ 1.5). Fibers with diameters from 0.2 to 0.4 mm were fabricated. Dimensions of prepared fibers were measured by optical microscopy without prior polishing. Transmission properties of prepared fibers were characterized by measuring angular distributions of output power at the wavelength of 670 nm. Optical losses of fibers exceeding 2 dB/m were determined by using the cut back method.

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Section: Introductionmentioning

confidence: 99%