Optical fiber
    171.
    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。

    Silica glass containing TiO2 and optical material for EUV lithography
    176.
    发明申请
    Silica glass containing TiO2 and optical material for EUV lithography 有权
    含二氧化硅的玻璃和用于EUV光刻的光学材料

    公开(公告)号:US20050245383A1

    公开(公告)日:2005-11-03

    申请号:US11174533

    申请日:2005-07-06

    Abstract: A silica glass containing TiO2, characterized in that the fluctuation of the refractive index (Δn) is at most 2×10−4 within an area of 30 mm×30 mm in at least one plane. A silica glass containing TiO2, characterized in that the TiO2 concentration is at least 1 mass %, and the striae pitch is at most 10 μm. An optical material for EUV lithography, characterized in that it is made of a silica glass containing TiO2, and the fluctuation of the refractive index (Δn) is at most 2×10−4 in a plane perpendicular to the incident light direction. An optical material for EUV lithography, characterized in that it is made of a silica glass containing TiO2, wherein the TiO2 concentration is at least 1 mass %, and the difference between the maximum value and the minimum value of the TiO2 concentration is at most 0.06 mass % in a plane perpendicular to the incident light direction.

    Abstract translation: 含有TiO 2的二氧化硅玻璃,其特征在于,在30mm×30mm的区域内,折射率(Deltan)的波动至多为2×10 -4〜 飞机 含有TiO 2的二氧化硅玻璃,其特征在于TiO 2浓度为1质量%以上,条纹间距为10μm以下。 一种用于EUV光刻的光学材料,其特征在于其由含有TiO 2的二氧化硅玻璃制成,并且折射率(Deltan)的波动为至多2×10 -4 >垂直于入射光方向的平面。 一种用于EUV光刻的光学材料,其特征在于其由含有TiO 2的二氧化硅玻璃制成,其中TiO 2浓度为至少1质量%,并且差异 在垂直于入射光方向的平面中,TiO 2 2 浓度的最大值和最小值之间的浓度至多为0.06质量%。

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