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    OPTICAL FIBER WITH IRREGULARITIES AT CLADDING BOUNDARY AND METHOD OF ITS FABRICATION
    132.
    发明申请
    OPTICAL FIBER WITH IRREGULARITIES AT CLADDING BOUNDARY AND METHOD OF ITS FABRICATION 审中-公开
    粘着边界不规则光纤及其制作方法

    公开(公告)号：WO0138244A8

    公开(公告)日：2001-06-28

    申请号：PCT/US0031902

    申请日：2000-11-20

    Applicant: SCIENTIFIC ATLANTA

    Inventor： ANTHON DOUGLAS W ,  EMSLIE CHRIS ,  MATON PETER ,  SPEED ASHLEY

    IPC: C03B37/012 ,  C03B37/018 ,  C03B37/027 ,  G02B6/036 ,  G02B6/10 ,  H01S3/067 ,  G02B6/22

    CPC classification number: G02B6/03694 ,  C03B37/01211 ,  C03B37/01838 ,  C03B37/027 ,  C03B2201/02 ,  C03B2201/12 ,  C03B2201/28 ,  C03B2201/34 ,  C03B2201/36 ,  C03B2201/40 ,  C03B2203/12 ,  C03B2203/22 ,  G02B6/03622 ,  G02B6/03638 ,  G02B6/105 ,  H01S3/06708 ,  H01S3/06729

    Abstract: An optical fiber (10) made with a central core (12), a first cladding layer (16), and a second cladding layer (18) having a series of perturbations or irregularities formed into the otherwise generally circular outer boundary of the first cladding layer (16). The irregularities in the first cladding layer (16) interrupt the propagation of skew rays and encourage coupling into the core (12). An intermediate cladding (14) may be provided between core and first cladding layer (16). A method of fabricatiNG the optical fiber is also disclosed, comprising, drilling a plurality of holes within the first cladding forming material and at the boundary thereof with the material forming the second cladding layer, drilling a central hole and inserting a preform core rod into said central hole. Drawing integrates the rod and drilled rod and the plurality of holes are collaped, so forming an irregular, quasi-circular boundary between first and second cladding forming layers in the drawn fiber.

    Abstract translation: 由中心纤芯（12），第一包层（16）和第二包层（18）制成的光纤（10）具有一系列扰动或不规则性，这些扰动或不规则性形成于第一包层的另外一般为圆形的外边界 层（16）。 第一包层（16）中的不规则性中断了倾斜射线的传播并且促使耦合到芯（12）中。 中间包层（14）可以设置在芯与第一包层（16）之间。 还公开了一种制造光纤的方法，该方法包括：在第一包层形成材料内和其边界处用形成第二包层的材料钻出多个孔，钻中心孔并将预制棒芯棒插入所述 中心孔。 拉伸将杆和钻杆集成在一起，并且多个孔成形，从而在拉制纤维中的第一和第二包层形成层之间形成不规则的准圆形边界。

    METHODS FOR MAKING ULTRA-LOW EXPANSION SILICA-TITANIA GLASSES
    133.
    发明申请
    METHODS FOR MAKING ULTRA-LOW EXPANSION SILICA-TITANIA GLASSES 审中-公开
    制造超低膨胀二氧化硅玻璃的方法

    公开(公告)号：WO99054259A1

    公开(公告)日：1999-10-28

    申请号：PCT/US1999/008777

    申请日：1999-04-21

    IPC: C03B8/04 ,  C03B19/14 ,  C03C3/06 ,  C03B20/00

    CPC classification number: C03C3/06 ,  C03B19/1415 ,  C03B2201/02 ,  C03B2201/42 ,  C03B2207/32 ,  C03B2207/34 ,  C03B2207/85 ,  C03C2201/42 ,  C03C2203/40

    Abstract: Ultra-low expansion silica-titania glasses are produced by flame deposition of a mixture of vaporized octamethylcyclotetrasiloxane (OMCTS) and vaporized titanium isopropoxide (Ti-Ipox). Ti-Ipox is vaporized by nitrogen bubbled from conduit (16) into tank (12) and OMCTS is vaporized by nitrogen bubbled from conduit (14) in tank (10). Before being mixed with the Ti-Ipox, the OMCTS is dried so that its water content is less than 2 ppm and preferably less than 1 ppm. In this way, the formation of a precipitate on the glass making equipment (e.g., burners (28), distribution manifold (26), static mixer (18), joint (13), and conduits (20, 22, 24 and 30)) is avoided. Such a precipitate if allowed to form will result in premature shutdown of the glass making process and can result in undesirable variations in the composition of the silica-titania glass being produced.

    Abstract translation: 通过火焰沉积蒸发的八甲基环四硅氧烷（OMCTS）和蒸发的异丙醇钛（Ti-Ipox）的混合物来生产超低膨胀二氧化硅 - 二氧化钛玻璃。 通过从管道（16）鼓泡到罐（12）中的氮气气化Ti-Ipox，并且通过从罐（10）中的导管（14）鼓泡的氮气将OMCTS汽化。 在与Ti-Ipox混合之前，将OMCTS干燥，使其含水量小于2ppm，优选小于1ppm。 以这种方式，在玻璃制备设备（例如燃烧器（28），分配歧管（26）），静态混合器（18），接头（13）和导管（20,22,24和30）上形成沉淀物， ）。 如果允许形成这种沉淀将导致玻璃制造过程的过早关闭，并且可能导致所生产的二氧化硅 - 二氧化钛玻璃的组成的不期望的变化。

    합성 석영 유리의 제조 방법, 합성 석영 유리 제조용 지그및 광학 부재용 합성 석영 유리
    140.
    发明公开
    합성 석영 유리의 제조 방법, 합성 석영 유리 제조용 지그및 광학 부재용 합성 석영 유리 无效
    用于生产合成石英玻璃的合成石英玻璃生产方法和用于光学成员的合成石英玻璃

    公开(公告)号：KR1020070108178A

    公开(公告)日：2007-11-08

    申请号：KR1020077018944

    申请日：2006-02-17

    Applicant: 아사히 가라스 가부시키가이샤

    Inventor： 히노,게이고

    IPC: C03B8/04 ,  C03B19/14 ,  C03B37/014 ,  C03B37/018

    CPC classification number: C03B19/1453 ,  C03B2201/02 ,  C03C3/06

    Abstract: An object of the invention is to provide a process for producing a synthetic quartz glass while taking account of a refractive index distribution remaining in the synthetic quartz glass; a jig for use in the synthetic-quartz-glass production process; and a synthetic quartz glass for an optical member, produced by the process. A process for producing a synthetic quartz glass, which comprises: depositing and growing fine quartz glass particles synthesized by flame hydrolysis of a glass-forming material on a rotating target to thereby form a porous quartz glass base of a substantially cylindrical shape; presintering the porous quartz glass base (1); and heating the presintered porous quartz glass base to a temperature not lower than the vitrification temperature to convert the base into a transparent glass, wherein in the step of conversion into a transparent glass, the porous quartz glass base is placed so as to make its growth axis vertical and a load (13, 14) is vertically imposed on the thus-placed porous quartz glass base.

    Abstract translation: 本发明的目的是提供一种在合成石英玻璃中考虑到折射率分布的同时制造合成石英玻璃的方法; 用于合成石英玻璃生产工艺的夹具; 以及通过该方法制造的用于光学部件的合成石英玻璃。 一种合成石英玻璃的制造方法，其特征在于，包括：在旋转靶上沉积并生长由玻璃形成材料的火焰水解合成的精细石英玻璃粒子，形成大致圆筒状的多孔石英玻璃基材; 预烧结多孔石英玻璃基底（1）; 将预烧结的多孔石英玻璃基体加热到不低于玻璃化温度的温度，将基底转变为透明玻璃，其中在转化为透明玻璃的步骤中，放置多孔石英玻璃基底使其生长 并且负载（13,14）垂直施加在如此放置的多孔石英玻璃基底上。

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