Method for forming optical fiber preform
    271.
    发明授权
    Method for forming optical fiber preform 失效
    光纤预制棒的形成方法

    公开(公告)号:US3982916A

    公开(公告)日:1976-09-28

    申请号:US644136

    申请日:1975-12-24

    Abstract: A process for manufacturing preforms from which clad optical fibers having longitudinal, eccentric, azimuthal index inhomogeneities may be drawn. In one embodiment, the known CVD process for making preforms is modified by the use of asymmetric heating to produce circumferentially alternating deposits of doped and undoped glass which act as the fiber core when the preform is subsequently collapsed and drawn into a fiber.

    Abstract translation: 制造具有纵向,偏心,方位角指数不均匀性的包层光纤的预成型件的制造方法。 在一个实施方案中,用于制备预成型件的已知CVD方法通过使用不对称加热来修饰,以产生当预成型件随后塌缩并被拉入纤维时充当纤维芯的掺杂和未掺杂玻璃的周向交替沉积。

    Method of forming optical waveguide fibers

    公开(公告)号:USRE28029E

    公开(公告)日:1974-06-04

    申请号:US28029D

    申请日:1973-06-21

    Abstract: A METHOD OF FORMING AN OPTICAL WAVEGUIDE BY FORMING A FIRST COATING OF GLASS HAVING A PREDETERMINED INDEX OF REFRACTION ON THE OUTSIDE PERIPHERAL WALL SURFACE OF A SUBSTANTIALLY CYLINDRICAL STARTER ROD OR MEMBER. THEREAFTER, A SECOND COATING OF GLASS IS APPLIED TO THE PERIPHERAL OUTSIDE SURFACE OF THE FIRST COATING, SAID SECOND COATING HAVING A PRESELECTED INDEX OF REFRACTION LESS THAN THE INDEX OF REFRACTION OF THE FIRST COATING. THE STARTER ROD OR MEMBER IS REMOVED FROM THE ASSEMBLY FOLLOWING THE APPLICATION OF EITHER THE FIRST OR SECOND COATING. THE RESULTING SUBSTANTIALLY CYLINDRICAL HOLLOW ASSEMBLY IS HEATED AND DRAWN TO REDUCE THE CROSS-SECTIONAL AREA AND TO COLLAPSE THE FIRST AND INNER COATING OF GLASS TO FORM A FIBER HAVING A SOLID CROSSSECTIONAL AREA. THE COLLAPSED FIRST AND INNER COATING FORMS THE FIBER CORE AND THE SECOND COATING FORMS THE CLADDING FOR THE FIBER.

    Optical transmission line
    275.
    发明授权
    Optical transmission line 失效
    光传输线

    公开(公告)号:US3778132A

    公开(公告)日:1973-12-11

    申请号:US3778132D

    申请日:1972-10-06

    CPC classification number: C03B37/027 C03B2201/02 C03B2201/10 G02B6/02

    Abstract: Optical transmission lines suitable for transmitting electromagnetic radiation within the visible spectrum and adjoining portions of the infrared and ultraviolet spectra consists of a pure amorphous silica core clad by a B2O3-modified silica cladding. The cladding may manifest a substantial uniform refractive index of a value at least 0.1 percent less than that of the core or may be graded to such a lowered value.

    Abstract translation: 适用于在可见光谱范围内传输电磁辐射的光传输线和红外和紫外光谱的相邻部分由纯B2O3改性的二氧化硅包层包裹的纯无定形二氧化硅芯组成。 包层可以表现出比芯的至少0.1%的基本上均匀的折射率,或者可以被分级到这样一个较低的值。

Patent Agency Ranking