METHOD OF MAKING UPDOPED CLADDING BY USING SILICON TERTRACHLORIDE AS THE DOPANT
    81.
    发明申请
    METHOD OF MAKING UPDOPED CLADDING BY USING SILICON TERTRACHLORIDE AS THE DOPANT 有权
    通过使用硅酮作为鞣剂制备更好的覆盖物的方法

    公开(公告)号:US20150225280A1

    公开(公告)日:2015-08-13

    申请号:US14467369

    申请日:2014-08-25

    Abstract: One embodiment of the disclosure relates to a method of making an optical fiber comprising the steps of: (i) exposing a silica based preform with at least one porous glass region having soot density of ρ to a gas mixture comprising SiCl4 having SiCl4 mole fraction ySiCl4 at a doping temperature Tdop such that parameter X is larger than 0.03 to form the chlorine treated preform, wherein X = 1 1 + [ ( ρ ρ s - ρ )  0.209748  T dop  Exp  [ - 5435.33 / T dop ] y SiCl   4 3 / 4 ] and ρs is the density of the fully densified soot layer; and (ii) exposing the chlorine treated preform to temperatures above 1400° C. to completely sinter the preform to produce sintered optical fiber preform with a chlorine doped region; and (iii) drawing an optical fiber from the sintered optical preform.

    Abstract translation: 本公开的一个实施方案涉及一种制造光纤的方法,包括以下步骤:(i)将二氧化硅基预型体暴露于具有烟炱密度的至少一个多孔玻璃区域; 在掺杂温度Tdop下将SiCl 4的SiCl 4摩尔分数为ySiCl4的气体混合物混合,使得参数X大于0.03以形成经氯处理的预制件,其中X = 11 + [(&rgr; s - &rgr;))0.209748 [... 5435.33 / T dop] y SiCl 4 3/4]和&rgr; s是完全致密的烟灰层的密度; 和(ii)将氯处理的预制件暴露于高于1400℃的温度下,以完全烧结预成型件,以制备具有氯掺杂区域的烧结光纤预制件; 和(iii)从烧结的光学预型件拉制光纤。

    METHOD FOR PRODUCING OPTICAL FIBER
    82.
    发明申请
    METHOD FOR PRODUCING OPTICAL FIBER 审中-公开
    生产光纤的方法

    公开(公告)号:US20120321261A1

    公开(公告)日:2012-12-20

    申请号:US13517859

    申请日:2012-06-14

    Abstract: There is provided a method for producing an optical fiber having low attenuation, the optical fiber including a core that contains an alkali metal element. An optical fiber preform that includes a core part and a cladding part is drawn with a drawing apparatus to form an optical fiber, the core part having an average concentration of an alkali metal element of 5 atomic ppm or more. During the drawing, the time the temperature of glass is maintained at 1500° C. or higher is 110 minutes or less. The drawing speed is preferably 1200 m/min or more and more preferably 1500 m/min to 2300 m/min. The optical fiber preform preferably has a diameter of 70 mm to 170 mm and more preferably 90 mm to 150 mm.

    Abstract translation: 提供了一种制造具有低衰减的光纤的方法,该光纤包括含有碱金属元素的芯。 包括芯部和包层部的光纤预制棒用拉伸装置拉伸以形成光纤,核部分的碱金属元素的平均浓度为5原子ppm以上。 在图中,玻璃的温度保持在1500℃以上的时间为110分钟以下。 拉伸速度优选为1200m / min以上,更优选为1500m / min〜2300m / min。 光纤预制棒的直径优选为70mm〜170mm,更优选为90mm〜150mm。

    Production process of synthetic quartz glass
    84.
    发明授权
    Production process of synthetic quartz glass 有权
    人造石英玻璃的生产工艺

    公开(公告)号:US07841211B2

    公开(公告)日:2010-11-30

    申请号:US10535935

    申请日:2003-11-28

    Abstract: First of all, there is provided a production process of a synthetic quartz glass which has less impurity, has a high-temperature viscosity characteristic equal to or more than that of a natural quartz glass, and hardly deforms even in a high-temperature environment, and especially a production process of a highly heat resistant synthetic quartz glass which is free from the generation of bubbles and is dense. Secondly, there is provided a highly heat resistant synthetic quartz glass body which is easily obtained by the production process of the present invention, and especially a transparent or black quartz glass body which is free from the generation of bubbles, is dense, has high infrared absorption rate and emission rate, and has an extremely high effect for preventing diffusion of alkali metal. The process is a process of producing a highly heat resistant quartz glass body having an absorption coefficient at 245 nm of 0.05 cm−1 or more, and the silica porous body was subjected to a reduction treatment, followed by baking, thereby forming a dense glass body.

    Abstract translation: 首先,提供了杂质少,具有等于或高于天然石英玻璃的高温粘度特性的合成石英玻璃的制造方法,即使在高温环境下也几乎不变形, 特别是高度耐热的合成石英玻璃的生产过程,其不产生气泡并且致密。 其次,提供了通过本发明的制造方法容易获得的高耐热性合成石英玻璃体,特别是不产生气泡的透明或黑色石英玻璃体,具有高红外 吸收率和排放率,对防止碱金属的扩散具有极高的效果。 该方法是制造吸收系数在245nm为0.05cm -1以上的高耐热性石英玻璃体的工序,对二氧化硅多孔体进行还原处理,然后进行烧成,由此形成致密的玻璃 身体。

    Quartz glass member and projection aligner
    90.
    发明申请
    Quartz glass member and projection aligner 有权
    石英玻璃构件和投影对准器

    公开(公告)号:US20030171203A1

    公开(公告)日:2003-09-11

    申请号:US10311233

    申请日:2002-12-17

    Abstract: A silica glass member of the present invention is one wherein when a composition thereof is expressed by SiOx, x is not less than 1.85 nor more than 1.95, wherein a concentration of hydrogen molecules included therein is not less than 1null1016 molecules/cm3 nor more than 5null1018 molecules/cm3, and wherein a difference AnullB between an absorption coefficient A immediately before an end of irradiation with 1null104 pulses of ArF excimer laser light in an average one-pulse energy density of 2 mJ/cm2 and a second absorption coefficient B at 600 seconds after a stop of the irradiation with the ArF excimer laser light is not more than 0.002 cmnull1. When this silica glass member is applied to an illumination optical system and/or a projection optical system in projection exposure apparatus, it becomes feasible to implement uniform exposure while reducing variation in illuminance on a reticle surface and in an exposure area on a wafer.

    Abstract translation: 本发明的石英玻璃构件是当其组成由SiO x表示时,x不小于1.85或不大于1.95,其中包含的氢分子的浓度不小于1×10 16分子/ cm <3>不超过5×10 18分子/ cm 3,并且其中在照射结束之前的吸收系数A与平均单脉冲中的1×10 4个ArF准分子激光脉冲之间的差AB 用ArF准分子激光照射停止600秒后的能量密度为2mJ / cm 2,第二吸收系数B为0.002cm -1以下。 当将该石英玻璃构件应用于投影曝光装置中的照明光学系统和/或投影光学系统时,可以实现均匀曝光,同时减小掩模版面和晶片上的曝光区域中的照度变化。

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