Method for Manufacturing Grin Lens
    33.
    发明申请
    Method for Manufacturing Grin Lens 审中-公开
    Grin镜片制造方法

    公开(公告)号:US20090235696A1

    公开(公告)日:2009-09-24

    申请号:US11992544

    申请日:2007-08-23

    Abstract: A method of manufacturing a GRIN lens includes a forming a wet gel from an alcohol solution containing a silicon alkoxide, a dopant alkoxide, and an aluminum alkoxide; dissolving by leaching the dopant and aluminum away from an outer peripheral surface of the wet gel to provide a refractive index distribution; forming a dry gel by drying the wet gel; forming a glass preform by firing the dry gel; and wire-drawing the perform. In the step of leaching, most aluminum dissolves from the wet gel, thereby increasing the porosity of the dry gel and preventing cracking during sintering and foaming during wire-drawing.

    Abstract translation: 制造GRIN透镜的方法包括从含有硅醇盐,掺杂剂醇盐和烷氧基铝的醇溶液形成湿凝胶; 通过将掺杂剂和铝从湿凝胶的外周表面浸出而溶解以提供折射率分布; 通过干燥湿凝胶形成干凝胶; 通过焙烧干凝胶形成玻璃预制件; 并绘制表演。 在浸出步骤中,大多数铝从湿凝胶中溶解,从而增加干凝胶的孔隙率,并防止在拉丝过程中烧结和发泡期间的开裂。

    Silica glass containing TiO2 and process for its production
    36.
    发明授权
    Silica glass containing TiO2 and process for its production 有权
    含二氧化硅的硅玻璃及其生产工艺

    公开(公告)号:US07429546B2

    公开(公告)日:2008-09-30

    申请号:US11172950

    申请日:2005-07-05

    Abstract: A silica glass containing TiO2, which has a fictive temperature of at most 1,200° C., a F concentration of at least 100 ppm and a coefficient of thermal expansion of 0±200 ppb/° C. from 0 to 100° C.A process for producing a silica glass containing TiO2, which comprises a step of forming a porous glass body on a target quartz glass particles obtained by flame hydrolysis of glass-forming materials, a step of obtaining a fluorine-containing porous glass body, a step of obtaining a fluorine-containing vitrified glass body, a step of obtaining a fluorine-containing formed glass body and a step of carrying out annealing treatment.

    Abstract translation: 含有TiO 2的二氧化硅玻璃,其具有至多1200℃的假想温度,至少100ppm的F浓度和0±200ppb /℃的热膨胀系数。 0至100℃。一种制备含有TiO 2的石英玻璃的方法,其包括在通过玻璃形成材料的火焰水解获得的目标石英玻璃颗粒上形成多孔玻璃体的步骤 ,获得含氟多​​孔玻璃体的步骤,获得含氟玻璃化玻璃体的步骤,获得含氟成形玻璃体的步骤和进行退火处理的步骤。

    Optical fiber
    37.
    发明授权
    Optical fiber 失效
    光纤

    公开(公告)号:US07386210B2

    公开(公告)日:2008-06-10

    申请号:US11538334

    申请日:2006-10-03

    Abstract: An optical fiber comprises a photosensitive core that includes a concentration of a first material that increases the refractive index of the core and a concentration of a second material that is other than boron and that reduces the refractive index of the core. A cladding is disposed about the core for tending to confine light to the core. The fiber also includes at least one longitudinally extending region having a thermal coefficient of expansion that is different from the thermal coefficient of expansion of the cladding. In another embodiment, the core includes a concentration of germanium and a concentration of boron. Also disclosed is a polarization-maintaining double-clad (PM DC) fiber comprising one or both of at least one circular axially extending stress inducing region(s) and an inner cladding comprising a circular outer perimeter. Fibers according to the invention can include a rare earth dopant for emitting light of a selected wavelength responsive to being pumped by pump light of a pump wavelength that is different than the selected wavelength.

    Abstract translation: 光纤包括感光芯,其包括提高芯的折射率的第一材料的浓度和不同于硼的第二材料的浓度,并降低芯的折射率。 围绕芯部布置包层以倾向于将光限制在芯部上。 纤维还包括具有不同于包层的热膨胀系数的热膨胀系数的至少一个纵向延伸区域。 在另一个实施方案中,芯包括锗的浓度和硼的浓度。 还公开了一种包括至少一个圆形轴向延伸的应力诱导区域和包含圆形外周边的内包层中的一个或两个的偏振保持双包层(PMDC)光纤。 根据本发明的纤维可以包括用于发射选定波长的光的稀土掺杂剂,其响应于通过不同于所选波长的泵浦波长的泵浦光泵浦。

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