低损耗As-S玻璃光纤的制备与应用研究  

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

作　　者：许彦涛[1] 郭海涛[1] 闫兴涛[1] 陆敏[1] 林傲祥[1] 李福[1] 杨建峰[1] 湛欢[1,2] 

机构地区：[1]中国科学院西安光学精密机械研究所,西安710119 [2]中国科学院大学,北京100049

出　　处：《无机材料学报》2015年第1期97-101,共5页Journal of Inorganic Materials

基　　金：国家自然科学基金(61177084)~~

摘　　要：采用反复蒸馏提纯技术和开放式动态蒸馏相结合的工艺,制备了高纯As-S玻璃,基本消除了玻璃在2.9、4和6.3μm处的杂质吸收。利用旋转法制备出壁厚均匀、表面质量优异的硫系玻璃套管。采用棒管法拉制出丝径50μm,芯径40μm具有芯包结构的硫系玻璃光纤。拉制的As-S光纤机械性能和光学性能优异,光纤丝径波动小于1%,弯曲半径优于4 mm,中红外波段损耗基线小于0.5 d B/m。制备出像元呈正方形排列,出端规格64×9,入端规格192×3,用于线–面转换的红外传像束,像束断丝率为2.7%。利用该异型传像束成功实现了长线阵的红外推扫成像。High-purity As-S glasses were prepared by repetitive distillation and open-type dynamic distillation meth- ods. 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.

关 键 词：硫系玻璃光纤 光纤传像束 杂质消除 红外成像 

分 类 号：TN213[电子电信—物理电子学]