Synthetic silica glass and its manufacturing method
    43.
    发明授权
    Synthetic silica glass and its manufacturing method 有权
    合成石英玻璃及其制造方法

    公开(公告)号:US06442973B1

    公开(公告)日:2002-09-03

    申请号:US09235409

    申请日:1999-01-22

    Abstract: A method is provided for manufacturing a synthetic silica glass. The method includes the steps of maintaining a silica glass member, which is formed using a flame hydrolysis method and having an OH group concentration of about 500 ppm to about 1300 ppm, at a predetermined holding temperature for a predetermined period of time so as to substantially relax the structure of the silica glass member. The method further includes the step of subsequently cooling the silica glass member to a first predetermined temperature at a cooling rate of about 10 K/hour or less, and thereafter, cooling the silica glass member to a second predetermined temperature at a cooling rate of about 1 K/hour or less. The method further includes the step of further cooling the silica glass member to a third predetermined temperature at a cooling rate of about 10 K/hour or less.

    Abstract translation: 提供了一种制造合成石英玻璃的方法。 该方法包括以下步骤:在预定的保持温度下,使用火焰水解法形成并具有约500ppm至约1300ppm的OH基浓度的二氧化硅玻璃构件, 放松石英玻璃构件的结构。 该方法还包括以约10K /小时以下的冷却速度随后将石英玻璃构件冷却至第一预定温度的步骤,然后以大约的冷却速度将石英玻璃构件冷却至第二预定温度 1 K /小时以下。 该方法还包括以约10K /小时或更低的冷却速度将石英玻璃构件进一步冷却至第三预定温度的步骤。

    Second-order nonlinear glass material
    44.
    发明授权
    Second-order nonlinear glass material 失效
    二阶非线性玻璃材料

    公开(公告)号:US06380109B1

    公开(公告)日:2002-04-30

    申请号:US09511716

    申请日:2000-02-23

    Abstract: There is disclosed second-order nonlinear glass material wherein a part having second-order nonlinearity contain Ge, H and OH and second-order nonlinear optical constant d of 1 pm/V or more, and a method for producing second-order nonliner glass material comprising treating a porous class material containing Ge with hydrohen, sintering it and subjecting it to a ultraviolet poling treatment. There can be provided second-order nonlinger glass material having second-order nonlinearity which is a sufficiently high and has a sufficiently long lifetime for a practical purpose, in use of the glass material for optical elements or the like.

    Abstract translation: 公开了二次非线性玻璃材料,其中具有二次非线性的部分包含Ge,H和OH以及二阶非线性光学常数d为1μm/ V以上,以及二阶非线性玻璃材料的制造方法 包括用氢氧化物处理含有Ge的多孔类材料,烧结并对其进行紫外线极化处理。 在使用光学元件等的玻璃材料时,可以提供具有二次非线性的二阶非线性玻璃材料,该二阶非线性度足够高并且在实际应用中具有足够长的使用寿命。

    Substantially dry, silica-containing soot, fused silica and optical fiber soot preforms, apparatus, methods and burners for manufacturing same
    47.
    发明申请
    Substantially dry, silica-containing soot, fused silica and optical fiber soot preforms, apparatus, methods and burners for manufacturing same 审中-公开
    基本干燥的含二氧化硅的烟灰,熔融石英和光纤烟炱预制件,用于制造相同材料的装置,方法和燃烧器

    公开(公告)号:US20020005051A1

    公开(公告)日:2002-01-17

    申请号:US09833540

    申请日:2001-04-11

    Abstract: Methods, apparatus and precursors for producing substantially water-free silica soot, preforms and glass. The methods and apparatus make substantially water-free fused silica preforms or glass by removing water as a reaction product, removing water from the atmosphere, removing water from the transport process, or combinations thereof. In a first embodiment, substantially water-free soot, preforms or glass are achieved by using a hydrogen-free fuel, such as carbon monoxide, in the deposition process. In another embodiment, a soot producing burner has parameters that enable operation on a substantially hydrogen-free fuel. End burners, which minimize water production, are also described. Such water-free methods are useful in depositing fluorine-doped soot because of the low water present and the efficiency in which fluorine is incorporated. In another embodiment, glassy barrier layer methods and apparatus are described for minimizing dopant migration, especially fluorine. Laser and induction methods and apparatus for forming the barrier layer are depicted. A chlorine, fluorine and silica precursor, such as chlorofluorosilane, may be utilized to form fluorinated soot. Other methods and apparatus are directed to combinations of conventional and substantially water-free processes. One embodiment is directed to combustion enhancing additives for addition to the substantially hydrogen-free fuels. The methods and apparatus in accordance with the invention are particularly useful for producing photomask substrates and optical fiber preforms.

    Abstract translation: 用于生产基本上无水的二氧化硅烟灰,预成型件和玻璃的方法,装置和前体。 该方法和装置通过除去水作为反应产物,从大气中除去水分,从运输过程中除去水或其组合,从而使基本上无水的熔融二氧化硅预制件或玻璃。 在第一实施方案中,在沉积工艺中通过使用无氢燃料如一氧化碳来实现基本上无水的烟灰,预型体或玻璃。 在另一个实施方案中,产生烟灰的燃烧器具有能够在基本上无氢燃料上操作的参数。 还描述了最小化水的生产的终端燃烧器。 这种无水方法由于存在低的水和掺入氟的效率而用于沉积氟掺杂烟灰。 在另一个实施例中,描述了用于最小化掺杂剂迁移,特别是氟的玻璃状阻挡层方法和装置。 描述了用于形成阻挡层的激光和感应方法和装置。 可以使用氯,氟和二氧化硅前体,例如氯氟硅烷来形成氟化烟灰。 其它方法和装置涉及常规和基本无水方法的组合。 一个实施方案涉及用于加入基本上无氢燃料的燃烧增强添加剂。 根据本发明的方法和装置特别适用于制造光掩模基片和光纤预制棒。

    Optical component containing a maximum of 200 wt.-ppm of chlorine
    50.
    发明授权
    Optical component containing a maximum of 200 wt.-ppm of chlorine 有权
    含有最多200重量ppm氯的光学元件

    公开(公告)号:US06289161B1

    公开(公告)日:2001-09-11

    申请号:US09198883

    申请日:1998-11-23

    Abstract: In a known optical component a cylindrical glass core of synthetic quartz glass contains hydroxyl groups, a maximum 200 wt.-ppm of chlorine, and no dopant in the form of a metal oxide. The glass core is axially enveloped by a glass mantle of doped quartz glass which has a lower refractive index than the glass core. Setting out from this, in order to offer an optical component of quartz glass for broad-band transmission, especially for broad-band spectroscopy, which is characterized by low attenuation over a broad range of wavelengths, it is proposed by the invention that the core glass contain less than 5 wt.-ppm of hydroxyl groups.

    Abstract translation: 在已知的光学组件中,合成石英玻璃的圆柱形玻璃芯包含羟基,最大为200重量ppm的氯,并且不含金属氧化物形式的掺杂剂。 玻璃芯由掺杂石英玻璃的玻璃罩轴向包围,折射率比玻璃芯低。 从此出发,为了提供用于宽带传输的石英玻璃的光学部件,特别是对于在宽波长范围内具有低衰减特征的宽带光谱,本发明提出了核心 玻璃含有小于5重量ppm的羟基。

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