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1. 发明申请

US20170003444A1 ULTRA-LOW-LOSS OPTICAL FIBER, AND METHOD AND APPARATUS FOR PRODUCING SAME 有权
标题翻译：超低光纤光纤，以及生产它们的方法和装置
公开(公告)号：US20170003444A1
公开(公告)日：2017-01-05
申请号：US15105634
申请日：2014-12-26
申请人： TAIHAN FIBEROPTICS CO., LTD.
发明人： Chi-Hwan OUH , Sung-Koog OH , Na-Eun KWACK , Eun-You HONG , Jong-Gil PARK , Ji-Hun YUN
IPC分类号： G02B6/02 , C03B37/02
CPC分类号： G02B6/02 , C03B37/0213 , C03B37/0253 , C03B37/02718 , C03B2201/31 , C03B2203/24 , G02B6/03627
摘要： This ultra-low-loss optical fiber comprises a core having a higher relative refractive index difference than silica and a cladding having a lower relative refractive index difference than silica. The relative refractive index difference of the core with respect to the refractive index of silica is 0.0030 to 0.0055, for example, and the relative refractive index difference of the cladding with respect to the refractive index of silica is −0.0020 to −0.0003. The ultra-low-loss optical fiber has the loss characteristic of simultaneously having optical losses of at most 0.324 dB/km at a wavelength of 1310 nm, at most 0.320 dB/km at a wavelength of 1383 nm, at most 0.184 dB/km at a wavelength of 1550 nm, and at most 0.20 dB/km at a wavelength of 1625 nm. The ultra-low-loss optical fiber is supercooled when the surface temperature of the optical fiber has a temperature range in a glass transition section during drawing.
摘要翻译：该超低损耗光纤包括具有比二氧化硅更高的相对折射率差的芯和具有比二氧化硅更低的相对折射率差的包层。相对于二氧化硅的折射率，芯的相对折射率差为0.0030〜0.0055，包层相对于二氧化硅的折射率的相对折射率差为-0.0020〜-0.0003。超低损耗光纤具有同时在1310nm的波长下同时具有至多0.324dB / km的光损耗的损耗特性，在1383nm波长下最多0.320dB / km，最多0.184dB / km 波长为1550nm，波长为1625nm时为0.20dB / km以下。当光纤的表面温度在拉伸期间具有玻璃化转变部分的温度范围时，超低损耗光纤是过冷的。

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