基本信息:
- 专利标题： LOW ATTENUATION FIBER WITH VISCOSITY MATCHED CORE AND INNER CLAD
- 专利标题（中）：低衰减光纤与粘度匹配核心和内部粘合
- 申请号：PCT/US2015/036930 申请日：2015-06-22
- 公开(公告)号：WO2015200191A1 公开(公告)日：2015-12-30
- 发明人： BOOKBINDER, Dana Craig , LI, Ming-Jun , MATTHEWS, Hazel Benton III , TANDON, Pushkar
- 申请人： CORNING INCORPORATED
- 申请人地址： 1 Riverfront Plaza Corning, New York 14831 US
- 专利权人： CORNING INCORPORATED
- 当前专利权人： CORNING INCORPORATED
- 当前专利权人地址： 1 Riverfront Plaza Corning, New York 14831 US
- 代理机构： SHORT, Svetlana Z. et al.
- 优先权： US62/016,192 20140624
- 主分类号： C03C3/06
- IPC分类号： C03C3/06 ; C03B37/02 ; C03C13/04 ; G02B6/036
摘要：
A single mode optical fiber having a core made from silica and less than or equal to about 6.5 weight% germania and having a maximum relative refractive index Δ 1ΜΑΧ . The optical fiber also has an inner cladding surrounding the core and having a minimum relative refractive index Δ 2ΜΙΝ · A difference between a softening point of the core and a softening point of the inner cladding is less than or equal to about 20 °C, and Δ 1ΜΑΧ > Δ 2ΜΑΧ . The single mode optical fiber may also have an outer cladding surrounding the inner cladding made from silica or SiON. The outer cladding has a maximum relative refractive index Δ 3ΜΑΧ , and Δ 3ΜΑΧ > Δ 2ΜΙΝ . A method for manufacturing an optical fiber includes providing a preform to a first furnace, the preform, drawing the optical fiber from the preform, and cooling the drawn optical fiber in a second furnace.
摘要（中）：
一种单模光纤，其具有由二氧化硅制成的核心，并且具有小于或等于约6.5重量％的锗酸盐并且具有最大的相对折射率Δ1MΑ。 光纤还具有围绕芯的内包层，并且具有最小的相对折射率Δ2M·N·N·内芯的软化点和内包层的软化点之间的差小于或等于约20℃，Δ1MΑ >Δ2ΜΑΧ。 单模光纤还可以具有包围由二氧化硅或SiON制成的内包层的外包层。 外包层具有最大相对折射率Δ3MΑ，Δ3MΑχ>Δ2M，N。 一种制造光纤的方法包括：将预成型件提供给第一炉，预型件，从预成型件拉制光纤，并在第二炉中冷却拉制的光纤。