Fabrication of optical waveguide
    3.
    发明授权
    Fabrication of optical waveguide 失效
    光波导的制造

    公开(公告)号:US4946251A

    公开(公告)日:1990-08-07

    申请号:US403069

    申请日:1989-09-05

    CPC分类号: C03C17/02 G02B6/13

    摘要: The guiding layers of optical waveguides are formed of arsenosilicate glass (ASG). By varying the arsenic content from 2 to 13 mole percent it is possible to vary the refractive index in the range 1.45 to 1.53. Pure silica or less heavily doped ASG can be used for the cladding layers. The ASG is preferably formed as the result of a heterogeneous reaction between silane and oxygen in the presence of arsine. Such a reaction can be carried out at temperatures down to 390.degree. C., allowing the ASG to be used on substrates of III-V compounds.

    摘要翻译: 光波导的引导层由砷硅酸盐玻璃(ASG)形成。 通过将砷含量改变为2至13摩尔%,可以将折射率改变在1.45至1.53的范围内。 纯二氧化硅或较不重掺杂的ASG可用于包覆层。 ASG优选由于在胂的存在下硅烷和氧之间的非均相反应而形成。 这种反应可以在低于390℃的温度下进行,允许将ASG用于III-V族化合物的底物上。

    Glass fibres and optical communication
    6.
    发明授权
    Glass fibres and optical communication 失效
    玻璃纤维和光通讯

    公开(公告)号:US4675038A

    公开(公告)日:1987-06-23

    申请号:US856841

    申请日:1986-04-21

    摘要: An improved method of manufacturing an optical fibre by vapor phase deposition of layers of cladding and core material for an optical fibre on the inside of a tubular substrate, followed by heating of the tube to cause it to collapse into a preform and drawing of the preform to form the fibre, includes performing the collapse with the introduction of chlorine gas acting as a drying agent. An alternative to chlorine gas is a vapor which decomposes in situ to yield chlorine without producing a solid deposit.

    摘要翻译: 一种改进的制造光纤的方法,该方法是通过气相沉积在管状基材内部的用于光纤的包层和芯材料层,随后加热该管以使其塌陷成预成型件并预成型件的拉伸 以形成纤维,包括通过引入用作干燥剂的氯气进行塌陷。 氯气的替代品是在原位分解产生氯而不产生固体沉积物的蒸汽。

    Integrated optical fibre and substrate supported optical waveguide
having directly connected optical cores
    10.
    发明授权
    Integrated optical fibre and substrate supported optical waveguide having directly connected optical cores 失效
    具有直接连接光芯的集成光纤和基板支持的光波导

    公开(公告)号:US5465312A

    公开(公告)日:1995-11-07

    申请号:US50358

    申请日:1993-08-10

    IPC分类号: G02B6/42 G02B6/255 G02B6/30

    CPC分类号: G02B6/30 G02B6/2551

    摘要: A planar waveguiding device has the cores of the fibre tails directly connected to the path regions of the waveguiding structure. The devices are produced by attaching the fibre tails before the path layer is deposited. The direct connections are produced when the path layer is sintered.

    摘要翻译: PCT No.PCT / GB91 / 01932 Sec。 371日期:1993年8月10日 102(e)日期1993年8月10日PCT 1991年11月5日PCT PCT。 公开号WO92 / 08154 日期:1992年5月14日。平面波导装置具有纤维尾部的芯直接连接到波导结构的路径区域。 通过在路径层沉积之前连接纤维尾部来产生装置。 当路径层被烧结时产生直接连接。