Method for manufacturing an optical fibre
    92.
    发明授权
    Method for manufacturing an optical fibre 失效
    光纤制造方法

    公开(公告)号:US3957474A

    公开(公告)日:1976-05-18

    申请号:US569113

    申请日:1975-04-17

    Abstract: A method for manufacturing a glass core rod and a cladding layer clothing the glass core rod applied successively or continuously by using a carbon dioxide gas laser. A refractory mandrel is heated by means of carbon dioxide gas laser irradiation and a mixed gas of oxygen and pure silicon tetrachloride vapor and a dopant compound vapor is ejected to the refractory mandrel so as to deposit silicon oxide and oxide of the dopant compound on the mandrel and to form a glass core by fusing it. Further heating is applied by irradiation by the carbon dioxide laser beam on the glass core and a mixed gas oxygen and pure silicon tetrachloride vapor and a dopant compound vapor or of oxygen gas and pure silicon tetrachloride vapor to deposit silicon oxide and oxide of the dopant compound or silicon oxide on the glass core to form a cladding layer of fused silica or fused silica containing the dopant. The preform thus formed by the glass core and the cladding is heated above the softening temperature of the preform so as to spin to form an optical fibre. The method uses laser beam heating which results in less degree of contaminating impurity and water content which might cause absorption and scattering of light also to manufacture an optical fiber having less variation at the boundary of the glass core and the cladding layer.

    Abstract translation: 一种用于制造玻璃芯棒和包层的方法,其通过使用二氧化碳气体激光器连续或连续地施加玻璃芯棒。 通过二氧化碳气体激光照射加热耐火心轴,并将氧和纯四氯化硅蒸汽和掺杂剂化合物蒸汽的混合气体喷射到耐火材料心轴上,以将氧化硅和掺杂剂化合物的氧化物沉积在心轴上 并通过熔化形成玻璃芯。 通过二氧化碳激光束照射在玻璃芯和混合气体氧气和纯四氯化硅蒸气以及掺杂剂化合物蒸气或氧气和纯四氯化硅蒸汽上进行进一步加热,以沉积氧化硅和掺杂剂化合物的氧化物 或硅氧化物,以形成包含掺杂剂的熔融二氧化硅或熔融二氧化硅的包覆层。 将由玻璃芯和包层形成的预制件加热到预成型体的软化温度以上以旋转形成光纤。 该方法使用激光束加热,其导致较少污染杂质和水分含量,这可能导致光的吸收和散射,也可以制造在玻璃芯和包层的边界处具有较小变化的光纤。

    Electric lamp having a fused silica glass envelope
    94.
    发明授权
    Electric lamp having a fused silica glass envelope 失效
    带有二氧化硅玻璃包装的电灯

    公开(公告)号:US3848152A

    公开(公告)日:1974-11-12

    申请号:US26010072

    申请日:1972-06-06

    Inventor: SCHULTZ P

    Abstract: An electric lamp comprises a light source within a glass envelope adapted to operate at temperatures above 800*C. under pressures ranging up to 100 atmospheres. The lamp may be a tungsten halide incandescent type or a discharge type such as a mercury vapor or metal halide lamp. The envelope is composed of a fused silica glass containing, on a cation mole percent basis, 0.01-1.0% of an additive selected from the group consisting of SnO2, GeO2, Fe2O3, WO3, MoO3 and Ta2O5.

    Abstract translation: 电灯包括适于在高于100℃的压力下在高于800℃的温度下操作的玻璃封套内的光源。 灯可以是卤化钨白炽灯,也可以是汞蒸气灯或金属卤化物灯等放电型灯。 外壳由熔融石英玻璃构成,该石英玻璃以阳离子摩尔%计含有选自SnO 2,GeO 2,Fe 2 O 3,WO 3,MoO 3和Ta 2 O 5中的0.01-1.0%的添加剂。

    LOW ATTENUATION FIBER WITH VISCOSITY MATCHED CORE AND INNER CLAD
    99.
    发明申请
    LOW ATTENUATION FIBER WITH VISCOSITY MATCHED CORE AND INNER CLAD 有权
    低衰减光纤与粘度匹配核心和内部粘合

    公开(公告)号:US20150370010A1

    公开(公告)日:2015-12-24

    申请号:US14728132

    申请日:2015-06-02

    Abstract: 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 Δ1MAX. The optical fiber also has an inner cladding surrounding the core and having a minimum relative refractive index Δ2MIN. 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 Δ1MAX>Δ2MIN. 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 Δ3MAX, and Δ3MAX>Δ2MIN. 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.

    Abstract translation: 一种单模光纤,其具有由二氧化硅制成并且小于或等于约6.5重量%的锗并具有最大相对折射率&Dgr; 1MAX的芯。 光纤还具有围绕芯的内包层并具有最小的相对折射率&Dgr; 2MIN。 芯的软化点和内包层的软化点之间的差值小于或等于约20℃,并且&Dgr; 1MAX>&Dgr; 2MIN。 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&Dgr; 3MAX和&Dgr; 3MAX>&Dgr; 2MIN。 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。

    ISOTOPICALLY ALTERED OPTICAL FIBER
    100.
    发明申请
    ISOTOPICALLY ALTERED OPTICAL FIBER 有权
    同位素改性光纤

    公开(公告)号:US20150023644A1

    公开(公告)日:2015-01-22

    申请号:US14310106

    申请日:2014-06-20

    Abstract: An optical waveguide having a cladding layer formed of high-purity glass, or a cladding layer formed of high-purity isotope-proportion modified glass, and with a core of high-purity isotope-proportion-modified glass with the index of refraction of the core glass greater than the index of refraction of the cladding glass, said high-purity isotope-proportion-modified core material having a Si-29-isotope proportion at most 4.447% Si-29 (atom/atom) of all silicon atoms in said core, or at least 4.90% of Si-29 (atom/atom) atoms in said core, or having a Ge-73 isotope proportion of at most 7.2% Ge-73 (atom/atom) of all germanium atoms in said core, or at least 8.18% of Ge-73 (atom/atom) of Germanium atoms in said core region.

    Abstract translation: 一种具有由高纯度玻璃形成的包层或由高纯度同位素比例改性玻璃形成的包覆层和具有折射率的高纯度同位素比例改性玻璃的芯的光波导 所述高纯度同位素比例改性核心材料具有Si-29-同位素比例,最大为4.447%Si-29(原子/原子)的所有硅原子在所述 芯或至少4.90%的Si-29(原子/原子)原子,或Ge-73同位素比例为所述芯中所有锗原子的至多7.2%Ge-73(原子/原子) 或至少8.18%的Ge-73(原子/原子)的锗原子。

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