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    Optical fiber containing alkali metal oxide
    11.
    发明授权
    Optical fiber containing alkali metal oxide 有权
    含有碱金属氧化物的光纤

    公开(公告)号：US07536076B2

    公开(公告)日：2009-05-19

    申请号：US11801472

    申请日：2007-05-10

    Applicant: Rostislav Radievich Khrapko ,  Hazel B Matthews, III

    Inventor： Rostislav Radievich Khrapko ,  Hazel B Matthews, III

    IPC: G02B6/00

    CPC classification number: G02B6/02 ,  C03B37/01446 ,  C03B37/01453 ,  C03B37/01807 ,  C03B2201/12 ,  C03B2201/20 ,  C03B2201/50 ,  C03B2203/26 ,  C03B2203/29 ,  C03C3/06 ,  C03C2201/11 ,  C03C2201/12 ,  C03C2201/50 ,  G02B6/02014 ,  G02B6/02266

    Abstract: Disclosed is an optical fiber having a silica-based core comprising an alkali metal oxide selected from the group consisting of K2O, Na2O, LiO2, Rb2O, Cs2O and mixtures thereof in an average concentration in said core between about 50 and 500 ppm by weight, said core further comprising chlorine and fluorine, wherein the average concentration of fluorine in said core is greater than the average concentration of alkali metal oxide in said core and the average concentration of chlorine in said core is greater than the average concentration of alkali metal oxide in said core; and a silica-based cladding surrounding and directly adjacent the core. By appropriately selecting the concentration of alkali metal oxide dopant in the core and the cladding, a low loss optical fiber may be obtained.

    Abstract translation: 公开了一种光纤，其具有二氧化硅基核，其包含选自K2O，Na2O，LiO2，Rb2O，Cs2O及其混合物的碱金属氧化物，其中所述芯中的平均浓度为约50至500重量ppm， 所述芯还包含氯和氟，其中所述芯中的氟的平均浓度大于所述芯中的碱金属氧化物的平均浓度，并且所述芯中的平均氯浓度大于碱金属氧化物的平均浓度 说核心; 以及围绕并直接邻近芯的二氧化硅基包层。 通过适当地选择芯和包层中的碱金属氧化物掺杂剂的浓度，可以获得低损耗光纤。

    Optical fiber containing alkali metal oxide
    12.
    发明申请
    Optical fiber containing alkali metal oxide 审中-公开
    含有碱金属氧化物的光纤

    公开(公告)号：US20080050086A1

    公开(公告)日：2008-02-28

    申请号：US11891274

    申请日：2007-08-09

    Applicant: Scott Robertson Bickham ,  Snigdharaj Kumar Mishra

    Inventor： Scott Robertson Bickham ,  Snigdharaj Kumar Mishra

    IPC: G02B6/00

    CPC classification number: G02B6/0281 ,  C03B37/01453 ,  C03B37/01807 ,  C03B37/01853 ,  C03B2201/12 ,  C03B2201/20 ,  C03B2201/50 ,  C03B2203/22 ,  C03B2207/90

    Abstract: Disclosed is an optical fiber having a silica-based core comprising an alkali metal oxide a silica-based core, said core comprising an alkali metal oxide selected from the group consisting of K2O, Na2O, LiO2, Rb2O, Cs2O and mixtures thereof in an average concentration in said core between about 50 and 1000 ppm by weight, and a silica-based cladding surrounding and directly adjacent the core, said fiber comprising a cable cutoff less than 1400 nm chromatic dispersion at 1550 nm between about 13 and 19 ps/nm/km and a zero dispersion wavelength less than about 1324 nm. By appropriately selecting the concentration of alkali metal oxide dopant in the core and the cladding, a low loss optical fiber may be obtained.

    Abstract translation: 公开了一种具有二氧化硅基核的光纤，其包含碱金属氧化物二氧化硅基核，所述芯包含选自K 2 O，Na 2 O， 2 O，LiO 2，Rb 2 O，Cs 2 O及其混合物，其中所述芯中的平均浓度在约 50和1000重量ppm，以及围绕并直接邻近芯的二氧化硅基包层，所述光纤包括在1550nm处在约13和19ps / nm / km之间的小于1400nm色散的电缆，并且零色散波长 小于约1324nm。 通过适当地选择芯和包层中的碱金属氧化物掺杂剂的浓度，可以获得低损耗光纤。

    Quartz glass crucible for pulling up silicon single crystal and method for producing the same
    16.
    发明授权
    Quartz glass crucible for pulling up silicon single crystal and method for producing the same 有权
    用于提升硅单晶的石英玻璃坩埚及其制造方法

    公开(公告)号：US06916370B2

    公开(公告)日：2005-07-12

    申请号：US10345056

    申请日：2003-01-15

    Applicant: Hiroyuki Watanabe

    Inventor： Hiroyuki Watanabe

    IPC: C03B20/00 ,  C03B19/09 ,  C30B15/10 ,  C30B29/06 ,  C30B13/02

    CPC classification number: C03B19/095 ,  C03B2201/03 ,  C03B2201/50 ,  C30B15/10 ,  Y02P40/57 ,  Y10S117/90 ,  Y10T117/1032 ,  Y10T117/1052

    Abstract: An object of the invention is to provide a quartz glass crucible for pulling up silicon single crystal and a method for producing the same, suitable for improving the productivity of the crucible and the quality of the silicon single crystal, which, by forming a crystalline layer on the inner surface of the quartz glass crucible during pulling up silicon single crystal, prevents degradation from occurring on the inner surface of the crucible and increases the ratio of single crystal while preventing the dislocation from forming on the single crystals. The objects above have been accomplished by a quartz glass crucible for pulling up silicon single crystal, having a double layered structure comprising a naturally occurring quartz glass outer layer and a synthetic quartz glass inner layer, said synthetic quartz glass inner layer contains at least one type of an alkali metal ion selected from the group consisting of Na ion, K ion, and Li ion, which is diffused or moved from said naturally occurring quartz glass outer layer into said synthetic quartz glass inner layer.

    Abstract translation: 本发明的目的是提供一种用于提升硅单晶的石英玻璃坩埚及其制造方法，其适用于提高坩埚的生产率和硅单晶的质量，通过形成晶体层 在提升硅单晶时在石英玻璃坩埚的内表面上，防止在坩埚的内表面上发生劣化，并增加单晶的比例，同时防止在单晶上形成位错。 上述目的已经通过用于提拉硅单晶的石英玻璃坩埚来实现，其具有包括天然存在的石英玻璃外层和合成石英玻璃内层的双层结构，所述合成石英玻璃内层包含至少一种类型 选自Na离子，K离子和Li离子的碱金属离子，其从所述天然存在的石英玻璃外层扩散或移动到所述合成石英玻璃内层中。

    Cladding-pumped optical fiber and methods for fabricating
    17.
    发明授权
    Cladding-pumped optical fiber and methods for fabricating 有权
    包层泵浦光纤及其制造方法

    公开(公告)号：US06779364B2

    公开(公告)日：2004-08-24

    申请号：US10287322

    申请日：2002-11-04

    Applicant: Kanishka Tankala ,  Adrian Carter

    Inventor： Kanishka Tankala ,  Adrian Carter

    IPC: G02B600

    CPC classification number: G02B6/03633 ,  C03B37/01211 ,  C03B37/01225 ,  C03B37/01228 ,  C03B37/01234 ,  C03B2201/10 ,  C03B2201/12 ,  C03B2201/34 ,  C03B2201/50 ,  C03B2203/10 ,  C03B2203/12 ,  C03B2203/23 ,  H01S3/067 ,  H01S3/06708 ,  H01S3/06729 ,  H01S3/094007

    Abstract: Disclosed is an optical fiber article for receiving pump radiation of a first wavelength for amplifying or generating radiation of a second wavelength. The optical fiber article includes a core for propagating light of the second wavelength. The core has a first index of refraction and includes a rare earth material. A cladding surrounds the core and has a second index of refraction that is less than the first index of refraction. The outer circumference of the cladding can include a plurality of sections, where the plurality of sections includes at least one substantially straight section and one inwardly curved section. The optical fiber article can also include at least one outer layer surrounding the cladding, where the index of refraction of the outer layer is less than the second refractive index. Methods for producing the optical fiber article are also disclosed, as well as methods for providing a preform for drawing such an optical fiber article.

    Abstract translation: 公开了一种用于接收用于放大或产生第二波长的辐射的第一波长的泵浦辐射的光纤制品。 光纤制品包括用于传播第二波长的光的芯。 芯具有第一折射率并且包括稀土材料。 包层围绕芯部并且具有小于第一折射率的第二折射率。 包层的外周可以包括多个部分，其中多个部分包括至少一个基本上直的部分和一个向内弯曲的部分。 光纤制品还可以包括围绕包层的至少一个外层，其中外层的折射率小于第二折射率。 还公开了制造光纤制品的方法，以及用于提供用于拉制这种光纤制品的预成型件的方法。

    Quartz glass crucible for pulling up silicon single crystal and method for producing the same
    19.
    发明申请
    Quartz glass crucible for pulling up silicon single crystal and method for producing the same 有权
    用于提升硅单晶的石英玻璃坩埚及其制造方法

    公开(公告)号：US20030159646A1

    公开(公告)日：2003-08-28

    申请号：US10345056

    申请日：2003-01-15

    Inventor： Hiroyuki Watanabe

    IPC: C30B015/00 ,  C30B021/06 ,  C30B027/02 ,  C30B028/10 ,  C30B030/04

    CPC classification number: C03B19/095 ,  C03B2201/03 ,  C03B2201/50 ,  C30B15/10 ,  Y02P40/57 ,  Y10S117/90 ,  Y10T117/1032 ,  Y10T117/1052

    Abstract: An object of the invention is to provide a quartz glass crucible for pulling up silicon single crystal and a method for producing the same, suitable for improving the productivity of the crucible and the quality of the silicon single crystal, which, by forming a crystalline layer on the inner surface of the quartz glass crucible during pulling up silicon single crystal, prevents degradation from occurring on the inner surface of the crucible and increases the ratio of single crystal while preventing the dislocation from forming on the single crystals. The objects above have been accomplished by a quartz glass crucible for pulling up silicon single crystal, having a double layered structure comprising a naturally occurring quartz glass outer layer and a synthetic quartz glass inner layer, said synthetic quartz glass inner layer contains at least one type of an alkali metal ion selected from the group consisting of Na ion, K ion, and Li ion, which is diffused or moved from said naturally occurring quartz glass outer layer into said synthetic quartz glass inner layer.

    Abstract translation: 本发明的目的是提供一种用于提升硅单晶的石英玻璃坩埚及其制造方法，其适用于提高坩埚的生产率和硅单晶的质量，通过形成晶体层 在提升硅单晶时在石英玻璃坩埚的内表面上，防止在坩埚的内表面上发生劣化，并增加单晶的比例，同时防止在单晶上形成位错。 上述目的已经通过用于提拉硅单晶的石英玻璃坩埚来实现，其具有包括天然存在的石英玻璃外层和合成石英玻璃内层的双层结构，所述合成石英玻璃内层包含至少一种类型 选自Na离子，K离子和Li离子的碱金属离子，其从所述天然存在的石英玻璃外层扩散或移动到所述合成石英玻璃内层中。

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