Method for producing iron-doped silica glass
    162.
    发明授权
    Method for producing iron-doped silica glass 有权
    铁掺杂石英玻璃的制造方法

    公开(公告)号:US09593034B2

    公开(公告)日:2017-03-14

    申请号:US14916608

    申请日:2014-09-11

    Inventor: Stefan Ochs

    Abstract: A method for producing a blank of iron-doped silica glass with high silicic acid content for use as heat protection glass is provided. The method involves: (a) producing an iron-doped SiO2 soot body which contains iron in a first oxidation state Fe3+ by flame hydrolysis of a silicon-containing and an iron-containing starting substance, (b) drying the soot body to obtain a mean hydroxyl group content of less than 10 ppm by weight, and (c) vitrifying the soot body under a reducing atmosphere that is suitable for at least partially reducing the iron from the first oxidation state Fe3+ to a second, lower oxidation state Fe2+. A blank is obtained having an iron content between 0.1 and 1% by weight which exhibits an internal transmission of at most 40% in the infrared wavelength range and an internal transmission of at least 85% in the visible spectral range.

    Abstract translation: 本发明提供一种用于制造具有高硅酸含量的掺铁石英玻璃的坯料作为保温玻璃的方法。 该方法包括:(a)通过含硅和含铁起始物质的火焰水解生产含有第一氧化态Fe 3+的铁的掺铁SiO 2烟灰体,(b)干燥烟灰体以获得 平均羟基含量小于10重量ppm,和(c)在适于将铁从第一氧化态Fe 3+至少部分还原为第二次氧化态Fe2 +的还原气氛下使烟灰体玻璃化。 获得的铁含量为0.1至1重量%的空白,其在红外波长范围内具有至多40%的内部透光率,在可见光谱范围内内透光率至少为85%。

    Method of making optical fibers in a reducing atmosphere
    163.
    发明授权
    Method of making optical fibers in a reducing atmosphere 有权
    在还原气氛中制造光纤的方法

    公开(公告)号:US09586853B2

    公开(公告)日:2017-03-07

    申请号:US14734122

    申请日:2015-06-09

    Abstract: A method for forming an optical fiber preform and fibers drawn from the preform. The method includes forming a soot cladding monolith, inserting a consolidated core cane into the internal cavity, and processing the resulting core-cladding assembly to form a preform. Processing may include exposing the core-cladding assembly to a drying agent and/or dopant precursor, and sintering the core-cladding assembly in the presence of a reducing agent to densify the soot cladding monolith onto the core cane to form a preform. The preform features low hydroxyl content and low sensitivity to hydrogen. Fibers drawn from the preform exhibit low attenuation losses from absorption by the broad band centered near 1380 nm.

    Abstract translation: 一种用于形成光纤预制棒的方法和从所述预成型件拉出的纤维。 该方法包括形成烟灰包覆整料,将固结的芯棒插入内部空腔中,以及处理所得到的芯 - 包层组件以形成预制件。 处理可以包括将芯包层组件暴露于干燥剂和/或掺杂剂前体,以及在还原剂存在下烧结芯 - 包层组件以将烟炱包覆整料致密化到芯棒上以形成预制件。 该预制件具有低羟基含量和对氢的低敏感性。 从预制件中抽出的纤维,由1380nm附近的宽带吸收而产生的衰减损耗低。

    Optical fiber preform manufacturing method, optical fiber preform, and optical fiber
    165.
    发明授权
    Optical fiber preform manufacturing method, optical fiber preform, and optical fiber 有权
    光纤预制棒制造方法,光纤预制棒和光纤

    公开(公告)号:US09340444B2

    公开(公告)日:2016-05-17

    申请号:US14376929

    申请日:2012-12-13

    Abstract: A method includes (1) a thermal diffusion process for using an alkali metal salt raw material having an average particle size of 1 mm or less in diameter, supplying a vapor of the alkali metal salt produced by heating the alkali metal salt raw material together with a carrier gas to the inside of a silica-based glass pipe from one end side of the glass pipe, and heating the glass pipe using a heat source which relatively moves in a longitudinal direction of the glass pipe to cause an oxidation reaction of an alkali metal and thermally diffuse the alkali metal into an inner side of the glass pipe, (2) a collapsing process for collapsing the glass pipe after the thermal diffusion process to prepare a core rod; and (3) a cladding portion addition process for adding a cladding portion around the core rod prepared in the collapsing process.

    Abstract translation: 一种方法包括:(1)使用平均粒径为1mm以下的碱金属盐原料的热扩散法,将碱金属盐原料加热生成的碱金属盐蒸气与 从玻璃管的一端侧向二氧化硅系玻璃管的内部输送载气,使用在玻璃管的长度方向相对移动的热源来加热玻璃管,引起碱的氧化反应 金属并将碱金属热扩散到玻璃管的内侧,(2)在热扩散过程之后使玻璃管塌缩的塌缩过程以制备芯棒; 和(3)包层部分添加工艺,用于在折叠过程中制备的芯棒周围添加包层部分。

    OPTICAL FIBER PREFORM MANUFACTURING METHOD, OPTICAL FIBER PREFORM, AND OPTICAL FIBER
    166.
    发明申请
    OPTICAL FIBER PREFORM MANUFACTURING METHOD, OPTICAL FIBER PREFORM, AND OPTICAL FIBER 有权
    光纤预制件制造方法,光纤预制件和光纤

    公开(公告)号:US20150299022A1

    公开(公告)日:2015-10-22

    申请号:US14376929

    申请日:2012-12-13

    Abstract: A method includes (1) a thermal diffusion process for using an alkali metal salt raw material having an average particle size of 1 mm or less in diameter, supplying a vapor of the alkali metal salt produced by heating the alkali metal salt raw material together with a carrier gas to the inside of a silica-based glass pipe from one end side of the glass pipe, and heating the glass pipe using a heat source which relatively moves in a longitudinal direction of the glass pipe to cause an oxidation reaction of an alkali metal and thermally diffuse the alkali metal into an inner side of the glass pipe, (2) a collapsing process for collapsing the glass pipe after the thermal diffusion process to prepare a core rod; and (3) a cladding portion addition process for adding a cladding portion around the core rod prepared in the collapsing process.

    Abstract translation: 一种方法包括:(1)使用平均粒径为1mm以下的碱金属盐原料的热扩散法,将碱金属盐原料加热生成的碱金属盐蒸气与 从玻璃管的一端侧向二氧化硅系玻璃管的内部输送载气,使用在玻璃管的长度方向相对移动的热源来加热玻璃管,引起碱的氧化反应 金属并将碱金属热扩散到玻璃管的内侧,(2)在热扩散过程之后使玻璃管塌缩的塌缩过程以制备芯棒; 和(3)包层部分添加工艺,用于在折叠过程中制备的芯棒周围添加包层部分。

    Niobium doped silica titania glass and method of preparation
    168.
    发明授权
    Niobium doped silica titania glass and method of preparation 有权
    掺铌二氧化硅玻璃及其制备方法

    公开(公告)号:US08987155B2

    公开(公告)日:2015-03-24

    申请号:US13973428

    申请日:2013-08-22

    Abstract: This disclosure is directed to a silica-titania-niobia glass and to a method for making the glass. The composition of the silica-titania-niobia (SiO2—TiO2—Nb2O5) glass, determined as the oxides, is Nb2O5 in an amount in the range of 0.005 wt. % to 1.2 wt. %, TiO2 in an amount in the range of 5 wt. % to 10 wt. %, and the remainder of glass is SiO2. In the method, the STN glass precursor is consolidated into a glass by heating to a temperature of 1600° C. to 1700° C. in flowing helium for 6 hours to 10 hours. When this temperature is reached, the helium flow can be replaced by argon for the remainder of the time. Subsequently the glass is cooled to approximately 1050° C., and then from 1050° C. to 700° C. followed by turning off the furnace and cooling the glass to room temperature at the natural cooling rate of the furnace.

    Abstract translation: 本公开涉及二氧化硅 - 二氧化钛 - 铌玻璃和制造该玻璃的方法。 作为氧化物测定的二氧化硅 - 二氧化钛 - 氧化铌(SiO2-TiO2-Nb2O5)玻璃的组成为Nb2O5,其量为0.005重量% %〜1.2重量% %,TiO 2的量为5wt。 %〜10重量% %,玻璃的其余部分为SiO2。 在该方法中,通过在流动氦中加热至1600℃至1700℃的温度6小时至10小时,将STN玻璃前体固结成玻璃。 当达到这个温度时,氦气流可以在一段时间内用氩气代替。 随后将玻璃冷却至约1050℃,然后冷却至1050℃至700℃,随后关闭炉,并以炉的自然冷却速率将玻璃冷却至室温。

    FUSED SILICA GLASS ARTICLE HAVING IMPROVED RESISTANCE TO LASER DAMAGE
    169.
    发明申请
    FUSED SILICA GLASS ARTICLE HAVING IMPROVED RESISTANCE TO LASER DAMAGE 审中-公开
    熔融二氧化硅玻璃制品具有改善的耐光损伤性能

    公开(公告)号:US20140373571A1

    公开(公告)日:2014-12-25

    申请号:US14269409

    申请日:2014-05-05

    Abstract: A fused silica glass article having greater resistance to damage induced by exposure to laser radiation such as laser induced wavefront distortion at deep ultraviolet (DUV) wavelengths, and behaviors such as fluence dependent transmission, which are related to intrinsic defects in the glass. The improved resistance to laser damage may be achieved in some embodiments by loading the glass article with molecular hydrogen (H2) at temperatures of about 400° C. or less, or 350° C. or less. The combined OH and deuteroxyl (OD) concentration may be less than 10 ppm by weight. In other embodiments, the improved resistance may be achieved by providing the glass with 10 to 60 ppm deuteroxyl (OD) species by weight. In still other embodiments, improved resistance to such laser damage may be achieved by both loading the glass article with molecular hydrogen at temperatures of about 350° C. or less and providing the glass with less than 10 ppm combined OH and OD, or 10 to 60 ppm OD by weight.

    Abstract translation: 一种熔融石英玻璃制品,其具有较强的耐受暴露于激光辐射(例如在深紫外(DUV)波长处的激光诱导波前失真)以及与玻璃中的固有缺陷有关的诸如通量依赖透射的行为的损伤。 在一些实施方案中,可以通过在约400℃或更低或350℃或更低的温度下加载具有分子氢(H 2)的玻璃制品来实现对激光损伤的改进的抗性。 组合的OH和氘氧化(OD)浓度可以小于10ppm重量。 在其它实施方案中,可以通过为玻璃提供10至60ppm的重量的氘氧化(OD)种类来实现改进的电阻。 在另外的其它实施方案中,可以通过在大约350℃或更低的温度下将玻璃制品加载到分子氢中来提供对这种激光损伤的改进的抗性,并且使玻璃具有小于10ppm的组合的OH和OD,或10至 60ppm OD重量。

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