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Proceedings Paper

Optical fibers of As2S3 glasses: preparation and characterization
Author(s): Ondřej Podrazký; Vlastimil Matĕjec; Petr Kostka; Jitka Pedliková; Nikola Bašinová; Jiří Zavadil
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Paper Abstract

Chalcogenide glasses based on arsenic sulfide (As2S3), 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 As2S3 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 As2S3 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.

Paper Details

Date Published: 6 January 2015
PDF: 8 pages
Proc. SPIE 9450, Photonics, Devices, and Systems VI, 94501B (6 January 2015); doi: 10.1117/12.2070404
Show Author Affiliations
Ondřej Podrazký, Institute of Photonics and Electronics of the ASCR, v.v.i. (Czech Republic)
Vlastimil Matĕjec, Institute of Photonics and Electronics of the ASCR, v.v.i. (Czech Republic)
Petr Kostka, Institute of Rock Structure and Mechanics of the ASCR, v.v.i (Czech Republic)
Jitka Pedliková, Institute of Rock Structure and Mechanics of the ASCR, v.v.i (Czech Republic)
Nikola Bašinová, Institute of Rock Structure and Mechanics of the ASCR, v.v.i (Czech Republic)
Jiří Zavadil, Institute of Photonics and Electronics of the ASCR, v.v.i. (Czech Republic)


Published in SPIE Proceedings Vol. 9450:
Photonics, Devices, and Systems VI
Pavel Tománek; Dagmar Senderáková; Petr Páta, Editor(s)

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