Preparation and Applications of Low-loss As-S Chalcogenide Glass Fibers

doi:10.15541/jim20140252

Abstract

Abstract:

High-purity As-S glasses were prepared by repetitive distillation and open-type dynamic distillation methods. The intensities of impurities’ absorptions were obviously reduced at 2.9 μm, 4 μm and 6.3 μm. Chalcogenide glass tubes with precise wall thickness and fine surface properties were prepared by tube-rotating technique and the fibers with core of 40 μm, cladding of 50 μm and error of 1% in diameter were drawn by rod-in-tube method. The fiber had good mechanical and optical performances, which general optical loss was less than 0.5 dB/m and the bending radius was less than 4 mm based on the bending test. The line-plane-switching fiber bundle which format was 64×9 quadrate array to implement 192×3 linear array was made from these chalcogenide glass and long-array infrared push-broom image was successfully demonstrated. The results prove that the fibers and bundle have excellent properties and push-broom infrared system based on the line-plane-switching fiber bundle being feasibility.

Key words: chalcogenide glass fibers, coherent fiber bundle, impurities eliminating, infrared imaging

CLC Number:

TN213

XU Yan-Tao, GUO Hai-Tao, YAN Xing-Tao, LU Min, LIN Ao-Xiang, LI Fu, YANG Jian-Feng, ZHAN Huan. Preparation and Applications of Low-loss As-S Chalcogenide Glass Fibers[J]. Journal of Inorganic Materials, 2015, 30(1): 97-101.

Figures/Tables 8

Fig. 1 Framework of quartz tube

Fig. 2 Framework of rotational machine

Fig. 3 Schematic diagram of the push-broom infrared fiber image transmission system

Fig. 4 IR transmission spectra of As40S60 glasses. A: sample without any pretreatment; B: sample prepared by purification process

Fig. 5 Images of the As-S glass preform, fiber and the measurement of the fiber diameter and bending test. (a) As-S glass rod and tube; (b) Image of As-S fiber without coating; (c) Cross section microscopy graph of fiber; (d) Bending test

Fig. 6 Optical attenuation of the As-S fiber without coating

Fig. 7 Cross-section microscopy graph (a) and illuminated cross-section (b) of fiber bundle

Fig. 8 Searing iron imagery taken with push-broom infrared fiber transmission system (a) and IR detector (b) directly

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