Department of Materials Science and Engineering, University of Arizona, Tucson, Arizona 85712, USA.
Opt Lett. 2010 Oct 15;35(20):3360-2. doi: 10.1364/OL.35.003360.
In this Letter, we report single-mode fibers made of chalcogenide glasses with low loss in the 5-12μm range. Glasses from the Ge-As-Te-Se system were optimized to prevent nucleation and to exhibit low density of charge carriers. Single-mode fibers were obtained through the rod-in-tube method by substituting 2% Te/Se between the core and cladding glasses. The resulting single-mode fibers had a core diameter of 30μm and exhibited losses of ~6 dB/m at 10.6μm, and as low as 3-4dB/m in the 6-10μm range.
在这封信中，我们报告了一种由硫属玻璃制成的单模光纤，其在 5-12μm 范围内具有低损耗。优化了 Ge-As-Te-Se 系统中的玻璃以防止成核并表现出低电荷载流子密度。通过在芯玻璃和包层玻璃之间取代 2% Te/Se ，采用棒中管法获得了单模光纤。所得的单模光纤的芯直径为 30μm，在 10.6μm 处的损耗约为 6dB/m，在 6-10μm 范围内低至 3-4dB/m。
