公开(公告)号：US4415230A

公开(公告)日：1983-11-15

申请号：US248947

申请日：1981-03-30

Applicant: Donald B. Keck

Inventor： Donald B. Keck

IPC: C03B37/012 ,  C03B37/014 ,  C03B37/018 ,  G02B6/024 ,  G02B6/10 ,  G02B5/172

CPC classification number: G02B6/105 ,  C03B37/01217 ,  C03B37/014 ,  C03B37/018 ,  C03B2201/02 ,  C03B2201/10 ,  C03B2201/28 ,  C03B2201/31 ,  C03B2201/42 ,  C03B2203/31

Abstract: A single mode optical waveguide is constructed in a manner such that the core thereof is subjected to a stress-induced birefringence. The fiber comprises an oblong core surrounded by an oblong inner cladding layer. An outer layer of stress cladding glass, which has a circular outer surface, surrounds the inner cladding layer. The TCE of the stress cladding glass is different from that of the inner cladding glass.

Abstract translation: 单模光波导以这样的方式构造，使得其芯受到应力引起的双折射。 纤维包括由长方形内包层包围的长方形芯。 具有圆形外表面的应力包层玻璃的外层包围内包层。 应力包层玻璃的TCE与内包层玻璃的TCE不同。

公开(公告)号：US4381141A

公开(公告)日：1983-04-26

申请号：US225743

申请日：1981-01-16

Applicant: Shiro Sakuragi ,  Haruo Kotani

Inventor： Shiro Sakuragi ,  Haruo Kotani

IPC: A61B18/20 ,  B23K26/08 ,  B29C47/00 ,  C03B23/049 ,  C03B37/012 ,  C03B37/023 ,  C03B37/027 ,  C03C13/04 ,  G02B6/00 ,  G02B6/02 ,  G02B6/10 ,  G02B5/14

CPC classification number: C03B37/01211 ,  C03B23/0493 ,  C03B37/01225 ,  C03B37/023 ,  C03B37/027 ,  C03C13/041 ,  G02B6/102 ,  B29C47/00 ,  B29C47/0014 ,  B29C47/0016 ,  C03B2201/02 ,  C03B2201/10 ,  C03B2201/84 ,  C03B2201/86 ,  C03B2205/04 ,  Y10S65/16

Abstract: A preform is prepared to comprise a step index structure consisting of a core and a clad both made of metal halogenides or arsenic-selenium glass sparingly capable of transmitting infrared light of long wavelength and a layer of lubricant applied to the outer surface of the clad. The preform is set inside a metal cylinder. By pulling this metal cylinder through a plurality of dies containing orifices of successively decreased diameters at a temperature below the melting point, the preform can be elongated into an optical fiber of a prescribed diameter. The optical fiber thus produced is capable of transmitting infrared light of high power with a small loss. Protected and reinforced by the metal cylinder jacket, this fiber enjoys high mechanical strength.

Abstract translation: 制备预制件，其包括由芯和由金属卤化物或能够传输长波长的红外光的砷 - 硒玻璃制成的包层和施加到包层的外表面的润滑剂层组成的阶跃折射率结构。 预成型件设置在金属圆筒内。 通过在低于熔点的温度下拉动该金属圆筒通过多个具有连续降低直径的孔的模具，预成型件可以伸长成规定直径的光纤。 如此制造的光纤能够以较小的损耗发射高功率的红外光。 由金属圆筒套保护和加固，这种纤维具有很高的机械强度。

公开(公告)号：US4199337A

公开(公告)日：1980-04-22

申请号：US949349

申请日：1978-10-06

Applicant: Adolf R. Asam

Inventor： Adolf R. Asam

IPC: C03B8/00 ,  C03B20/00 ,  C03B37/014 ,  C03B37/018 ,  C03B37/027 ,  C03C13/04 ,  C03C15/00 ,  G02B6/00 ,  G02B6/036 ,  G02B6/44 ,  C03C25/02

CPC classification number: G02B6/03638 ,  C03B37/014 ,  C03B37/018 ,  C03B37/027 ,  C03C13/045 ,  C03C13/046 ,  C03C15/00 ,  G02B6/03622 ,  G02B6/4401 ,  C03B2201/02 ,  C03B2201/10 ,  C03B2201/31 ,  C03B2203/24

Abstract: A process is disclosed for finishing high-strength multilayer optical preforms capable of being drawn into long optical fibers useful for light-wave communications. The preforms are of the type prepared by sequential chemical-vapor-deposition of the various desired glass layers within a tubular glass substrate that is then collapsed into a solid cylindrical preform comprising a cylindrical light-transmitting core surrounded by a concentric cladding layer and one or more additional layers within the collapsed substrate. In order for the outermost deposited additional layer to constitute a thin high-compression layer on the surface of the completed optical structure, it is necessary first to remove substantially all of the substrate layer from the preform in such a manner as to leave the adjoining high-compression layer intact. This is accomplished by selecting a glass for the substrate layer that is capable of being etched away faster than the high-compression layer, and then using controlled preferential etching to remove the substrate layer without penetrating or damaging the high-compression layer.This method makes it possible to provide a thinner and more effective outer high-compression layer, on the surface of the completed preform, which is of uniform radial thickness regardless of any nonlinearity or non-concentricity of the core, enclosing layers, or substrate layer. An optical fiber drawn from the completed preform will then retain a uniform high-compressive stress in its outer layer that contributes materially to its tensile strength, durability, and fiber life.

Abstract translation: 公开了一种用于整理能够被拉入用于光波通信的长光纤中的高强度多层光学预成型件的方法。 预型件是通过在管状玻璃基板内顺序化学气相沉积各种期望的玻璃层而制备的，预先形成一个固体圆柱形预制件，该圆柱形预制件包括由同心包覆层包围的圆柱形透光芯和一个或多个 塌陷底物内更多的附加层。 为了使最外面沉积的附加层在完成的光学结构的表面上构成薄的高压缩层，首先必须以预定的方式将基本上所有的基底层从预型件上移除，以使得邻近的高度 压缩层完好无损。 这通过选择能够比高压缩层更快蚀刻掉的衬底层的玻璃，然后使用受控的优先蚀刻来去除衬底层而不会侵入或损坏高压缩层来实现。 这种方法使得可以在完成的预成型件的表面上提供更薄和更有效的外部高压缩层，其具有均匀的径向厚度，而与芯，封闭层或基底层的任何非线性或非同心度无关 。 从完成的预制件中拉出的光纤将在其外层中保持均匀的高压缩应力，从而实质上有助于其拉伸强度，耐用性和纤维寿命。

公开(公告)号：US3966300A

公开(公告)日：1976-06-29

申请号：US325377

申请日：1973-01-22

Applicant: Gerhard Bernsee

Inventor： Gerhard Bernsee

IPC: C03B37/012 ,  C03C13/04 ,  G02B6/00 ,  G02B6/02 ,  G02B6/06 ,  G02B6/10 ,  G02B5/16

CPC classification number: G02B6/102 ,  C03B37/01211 ,  C03C13/045 ,  G02B6/02 ,  G02B6/06 ,  C03B2201/02 ,  C03B2201/04 ,  C03B2201/23

Abstract: Light-conducting optical fibers in which both the core and sheath consist essentially of quartz glass are provided by encasing a relatively anhydrous quartz glass core with a quartz glass sheath having a sufficiently high water content to lower the refractive index thereof. The fibers are ideally suited for the transmission of ultraviolet light with maximum efficiency.

Abstract translation: 通过用具有足够高的水含量的石英玻璃护套包裹相对无水的石英玻璃芯来提供芯和壳基本上由石英玻璃组成的导光光纤，以降低其折射率。 这些纤维非常适用于以最大效率传输紫外线。

公开(公告)号：USRE28028E

公开(公告)日：1974-06-04

申请号：US28028D

申请日：1973-06-21

IPC: C03B37/018 ,  C03B37/027

CPC classification number: C03B37/01807 ,  C03B37/01853 ,  C03B37/01861 ,  C03B37/01869 ,  C03B37/01892 ,  C03B37/027 ,  C03B2201/02 ,  C03B2201/10 ,  C03B2201/30 ,  C03B2201/31 ,  C03B2201/32 ,  C03B2201/34 ,  C03B2201/40 ,  C03B2201/42 ,  C03B2203/24 ,  C03B2205/16

Abstract: A METHOD OF FORMING AN OPTICAL WAVEGUIDE BY FIRST FORMING A COATING OF GLASS ON THE INSIDE WALL OF A GLASS

TUBE, THE GLASS TUBE AND THE FIRST COATING BEING OF SUBSTANTIALLY SIMILAR MATERIAL. THEREAFTER, A SECOND COATING OF GLASS IS APPLIED TO THE INSIDE WALL OF THE GLASS TUBE OVER THE FIRST COATING, SAID SECOND COATING HAVING A PRESELECTED DIFFERENT INDEX OF REFRACTION FROM THAT OF THE FIRST COATING. THE GLASS TUBE AND COATING COMBINATION IS THEREAFTER DRAWN TO REDUCE THE CROSS-SECTIONAL AREA AND TO COLLAPSE THE SECOND AND INNER COATING OF GLASS TO FORM A FIBER HAVING A SOLID CROSS-SECTIONAL AREA. THE COLLASPSED INNER COATING FORMS THE FIBER CORE AND THE FIRST COATING FORMS THE CLADDING FOR THE FIBER WHILE THE EXTERIOR GLASS TUBE PROVIDES STRUCTURAL STRENGTH FOR THE FIBER.

公开(公告)号：US3737292A

公开(公告)日：1973-06-05

申请号：US3737292D

申请日：1972-01-03

Applicant: CORNING GLASS WORKS

Inventor： KECK D ,  SCHULTZ P ,  ZIMAR F

IPC: C03B37/014 ,  C03B37/018 ,  C03B37/027 ,  C03C25/06

CPC classification number: C03B37/027 ,  C03B37/01413 ,  C03B37/01473 ,  C03B37/018 ,  C03B37/01869 ,  C03B2201/02 ,  C03B2201/10 ,  C03B2201/30 ,  C03B2201/31 ,  C03B2201/32 ,  C03B2201/34 ,  C03B2201/40 ,  C03B2201/42 ,  C03B2203/24 ,  C03B2203/28 ,  C03B2205/16

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 SRFACE 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 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 CORSS-SECTIONAL AREA AND

TO COLLAPSE THE FIRST AND INNER COATING OF GLASS TO FORM A FIBER HAVING A SOLID CROSS-SECTIONAL AREA. THE COLLAPSED FIRST AND INNER COATING FORMS THE FIBER CORE AND THE SECOND COATING FORMS THE CLADDING FOR THE FIBER.