Optical fiber preform and method of manufacturing optical fiber preform
    188.
    发明专利
    Optical fiber preform and method of manufacturing optical fiber preform 有权
    光纤预制件和制造光纤预制件的方法

    公开(公告)号:JP2014166941A

    公开(公告)日:2014-09-11

    申请号:JP2014013029

    申请日:2014-01-28

    Abstract: PROBLEM TO BE SOLVED: To provide an optical fiber preform which can be drawn into an optical fiber with low loss.SOLUTION: An optical fiber preform 1 includes a core part 10 and a clad part 20 surrounding the core part 10. The core part 10 includes a first core part 11 and a second core part 12 surrounding the first core part 11. The clad part 20 includes a first clad part 21 surrounding the second core part 12 and a second clad part 22 surrounding the first clad part 21. The first core part 11 contains an alkali metal element, a density of oxygen molecules included in a glass being 30 to 200 mol ppb in a part or the whole of an area where an alkali metal atom density is 100 atomic ppm or larger and 10 mol ppb or less in an area where an alkali metal atom density is 50 atomic ppm or less.

    Abstract translation: 要解决的问题:提供一种能够以低损耗吸收到光纤中的光纤预制件。解决方案:光纤预制棒1包括芯部10和围绕芯部10的包层部20.芯部10 包括围绕第一芯部11的第一芯部11和第二芯部12.包层部20包括围绕第二芯部12的第一包层部21和围绕第一包层部21的第二包层部22。 核心部分11包含碱金属元素,玻璃中包含的氧分子的密度在碱金属原子密度为100原子ppm以上且10摩尔ppb的部分或全部的部分或整体中为30〜200摩尔ppb, 在碱金属原子密度为50原子ppm以下的区域较少。

    Optical member for euvl and surface treatment method therefor
    190.
    发明专利
    Optical member for euvl and surface treatment method therefor 有权
    用于EUVL及其表面处理方法的光学部件

    公开(公告)号:JP2009155170A

    公开(公告)日:2009-07-16

    申请号:JP2007336167

    申请日:2007-12-27

    Abstract: PROBLEM TO BE SOLVED: To provide an optical member for EUVL (Extreme UltraViolet Lithography) used for a reflection type mask, mirror or the like for EUVL, and in which the flatness and surface roughness of an optical plane are excellent, and also, the chipping of a chamfered part is prevented, and to provide a surface treatment method for the optical plane of an optical member for EUVL.
    SOLUTION: The surface treatment method for the optical member for EUVL is characterized in that the optical plane of an optical member for EUVL made of a quartz glass material having OH concentration of ≥100 ppm, essentially consisting of SiO
    2 and comprising TiO
    2 is subjected to GCIB (Gas Cluster Ion Beam) etching using a source gas comprising at least either fluorine or chlorine.
    COPYRIGHT: (C)2009,JPO&INPIT

    Abstract translation: 要解决的问题:提供用于EUVL的反射型掩模,反射镜等的用于EUVL(Extreme UltraViolet Lithography)的光学部件,其中光学平面度和表面粗糙度优异,并且 另外,防止倒角部分的碎裂,并为EUVL的光学部件的光学平面提供表面处理方法。 解决方案:用于EUVL的光学部件的表面处理方法的特征在于,由OH浓度为≥100ppm的石英玻璃材料制成的用于EUVL的光学部件的光学平面基本上由SiO 2组成 使用包含至少氟或氯的源气体进行GCIB(气体簇离子束)蚀刻,并且包含TiO 2 SB 2。 版权所有(C)2009,JPO&INPIT

Patent Agency Ranking