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首页> 外文期刊>Journal of Non-Crystalline Solids: A Journal Devoted to Oxide, Halide, Chalcogenide and Metallic Glasses, Amorphous Semiconductors, Non-Crystalline Films, Glass-Ceramics and Glassy Composites >A novel approach for the fabrication of planar waveguides from heavy metal oxide glasses
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A novel approach for the fabrication of planar waveguides from heavy metal oxide glasses

机译：一种由重金属氧化物玻璃制造平面波导的新颖方法

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摘要

An extrusion process is used to fabricate preforms for the development of planar waveguides in glass ribbon format through a stretching process. The feasibility of the overall process is demonstrated using three tellurite glass compositions. The manufactured preforms present multilayered structures with the higher refractive glass layer thickness of the order of 40 pm. The longitudinal and transversal variations of the layer thicknesses are discussed with respect to waveguiding application tolerances. Advantages, limitations and improvement of the technique are also discussed. 3 mm wide multilayered planar waveguides in ribbon geometry are produced by stretching the preforms by a 1:5 ratio over a length of 400 mm. The waveguides were examined by optical and electron microscopy and no signs of crystallization or contamination are observed. Optical waveguiding is successfully assessed in 7.4 mu m thick and 9 mm long film waveguides.
机译：挤出工艺用于制造预成型件，以通过拉伸工艺开发玻璃带形式的平面波导。使用三种碲酸盐玻璃组合物证明了整个过程的可行性。所制造的预成型件具有多层结构，该多层结构具有较高的折射玻璃层厚度，约为40 pm。关于波导应用的公差讨论了层厚度的纵向和横向变化。还讨论了该技术的优点，局限性和改进之处。带状几何形状的3 mm宽的多层平面波导是通过在400 mm的长度上按1：5的比例拉伸预成型件而制成的。通过光学和电子显微镜检查波导，没有观察到结晶或污染的迹象。在7.4微米厚和9毫米长的薄膜波导中成功地评估了光波导。

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