论文标题
来自ZBLAN的超高Q WGM微球为中期带
Ultra high-Q WGM microspheres from ZBLAN for the mid-IR band
论文作者
论文摘要
可以应用高质量因子窃窃库模式微孔子的优势来开发中IR范围的新型光子设备。 ZBLAN（基于重金属氟化物的玻璃）是由于MID-IR的光学损失低而用于此目的最有前途的材料之一。我们开发了原始制造方法，基于将基于ZBLAN的光纤熔化的熔化，以产生高Q ZBLAN微球，直径为250至350 $μ$ m。我们在这些微球中有效激发了窃窃图库模式，并且在1.55 $ $ m和2.64 $ $ m $ m $ m $ m $ m $ m $ $ m均显示出高质量的因子。在电信波长处显示了$（5.4 \ pm0.4）\ cdot10^8 $，这是由ZBLAN中的材料损失定义的。在MID-IR时为2.64 $μ$ M，我们在ZBLAN中证明了纪录质量的质量因子超过$ 10^8 $，这与MID-IR中所有材料中Q因子的最高值相当。
The advantages of high-quality-factor whispering gallery mode microresonators can be applied to develop novel photonic devices for the mid-IR range. ZBLAN (glass based on heavy metal fluorides) is one of the most promising materials to be used for this purpose due to low optical losses in the mid-IR. We developed original fabrication method based on melting of commercially available ZBLAN-based optical fiber to produce high-Q ZBLAN microspheres with the diameters of 250 to 350 $μ$m. We effectively excited whispering gallery modes in these microspheres and demonstrated high quality factor both at 1.55 $μ$m and 2.64 $μ$m. Intrinsic quality factor at telecom wavelength was shown $(5.4\pm0.4)\cdot10^8$ which is defined by the material losses in ZBLAN. In the mid-IR at 2.64 $μ$m we demonstrated record quality factor in ZBLAN exceeding $10^8$ which is comparable to the highest values of the Q-factor among all materials in the mid-IR.
