Quartz glass envelope tube
    121.
    发明授权
    Quartz glass envelope tube 失效
    石英玻璃管

    公开(公告)号:US4437727A

    公开(公告)日:1984-03-20

    申请号:US384467

    申请日:1982-06-03

    Applicant: Norbert Treber

    Inventor: Norbert Treber

    CPC classification number: C03B37/01426 C03B2201/02 Y10T428/1317

    Abstract: A quartz glass envelope tube for the preparation of a light guide fiber blank, the tube being in the form of a laminate in which the inner layer consists essentially of quartz glass made from rock crystal and the outer layer of synthetic quartz glass. Good mechanical properties, especially tensile strength, are thereby achieved.

    Abstract translation: 一种用于制备导光纤维坯料的石英玻璃封套管,该管为层压板的形式,其中内层基本上由石英玻璃制成的石英玻璃和合成石英玻璃的外层组成。 由此实现良好的机械性能,特别是拉伸强度。

    Method of fabricating a polarization retaining single-mode optical
waveguide
    122.
    发明授权
    Method of fabricating a polarization retaining single-mode optical waveguide 失效
    制造偏振保持单模光波导的方法

    公开(公告)号:US4395270A

    公开(公告)日:1983-07-26

    申请号:US253224

    申请日:1981-04-13

    Abstract: A method of making a glass optical fiber having a core surrounded by cladding containing diametrically opposed regions of different TCE than the cladding. Three manufacturing techniques are disclosed. (1) A first glass rod having core and cladding glass is placed centrally in a glass tube. Rods of glass having a TCE different from that of the cladding glass are put on opposite sides of the first rod. Rods of cladding glass are placed in the interstices. (2) A soot preform is deposited on a rotating mandrel. In one embodiment, mandrel rotation is halted to deposit one longitudinally extending region and then rotated 180.degree. to deposit the other such region. In a modified embodiment the mandrel continuously rotates and the deposition burner is continuously supplied with reactant gas for forming a base glass and is also provided with pulses of a reactant gas for modifying the base glass to form the diametrically opposed regions. (3) A CVD process is modified by inserting a pair of tubes into the substrate tube when the longitudinally extending regions are to be deposited. There is passed between the first tube and the pair of tubes a gas which reacts to form particles of a base glass and there is passed through the pair of tubes another gas which reacts to form dopant glass particles which combine with base glass particles to form longitudinal strips of doped base glass within the tube.

    Abstract translation: 一种制造玻璃光纤的方法,其具有由包含不同TCE的直径相对的区域的包层包围的芯。 公开了三种制造技术。 (1)将具有芯和包层玻璃的第一玻璃棒放置在玻璃管中央。 具有与包层玻璃不同的TCE的玻璃棒放在第一棒的相对侧上。 包层玻璃棒放置在间隙中。 (2)烟灰预制件沉积在旋转的心轴上。 在一个实施例中,停止心轴旋转以沉积一个纵向延伸的区域,然后旋转180度以沉积另一个这样的区域。 在改进的实施例中,心轴连续旋转,并且沉积燃烧器连续地供应有用于形成基础玻璃的反应气体,并且还具有用于改变基础玻璃以形成直径相对的区域的反应气体的脉冲。 (3)当要沉积纵向延伸区域时,通过将一对管插入衬底管中来修饰CVD工艺。 在第一管和一对管之间通过气体,其反应形成基础玻璃的颗粒,并且通过该对管另一气体,其反应形成掺杂剂玻璃颗粒,其与基础玻璃颗粒结合以形成纵向 管内的掺杂基底玻璃条。

    Method of making polarization retaining single-mode optical waveguide
    124.
    发明授权
    Method of making polarization retaining single-mode optical waveguide 失效
    制造偏振保持单模光波导的方法

    公开(公告)号:US4360371A

    公开(公告)日:1982-11-23

    申请号:US249022

    申请日:1981-03-30

    Abstract: A single mode optical waveguide is fabricated in a manner such that the core thereof is subjected to a stress-induced birefringence. A hollow intermediate product is formed by depositing layers of cladding and core glass on the inner surface of a substrate tube. Opposite sides of the intermediate product are heated to cause it to collapse into a solid preform foreproduct having an oblong cross-section. A layer of flame hydrolysis-produced soot having a circular outer surface is deposited on the preform foreproduct and is consolidated to form a dense glass cladding layer thereon. The TCE of the outer cladding layer is different from that of the preform foreproduct on which it is deposited so that when the resultant preform is drawn into a fiber, a stress-induced birefringence exists in the core.

    Abstract translation: 单模光波导以这样的方式制造,使得其芯受到应力诱导的双折射。 通过在衬底管的内表面上沉积包层和芯玻璃层形成中空的中间产物。 加热中间产物的相对侧以使其塌陷成具有长方形横截面的固体预制件前体产品。 将具有圆形外表面的火焰水解生成的烟灰层沉积在预成型件前体上并被固结以在其上形成致密的玻璃包覆层。 外包层的TCE不同于其沉积的预制品前体产品的TCE,使得当将所得的预成型件拉制成纤维时,在芯中存在应力诱导的双折射。

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