公开(公告)号：US5076653A

公开(公告)日：1991-12-31

申请号：US568385

申请日：1990-08-16

Applicant: Kazuhiro Kayashima ,  Fumikazu Tateishi ,  Koyoko Ohshima ,  Masaru Ikedo

Inventor： Kazuhiro Kayashima ,  Fumikazu Tateishi ,  Koyoko Ohshima ,  Masaru Ikedo

IPC: C03B37/023 ,  C03B37/027 ,  C03C13/00 ,  C03C13/04 ,  G02B6/10

CPC classification number: C03C13/041 ,  C03B37/023 ,  C03B37/027 ,  C03C13/008 ,  G02B6/102 ,  C03B2201/84 ,  C03B2205/10

Abstract: An infrared optical fiber is disclosed which has a composition ratio of silver chloride and silver bromide in the range of 30 to 70 percent by weight of silver chloride, and has a diameter of 0.5 mm or less. The infrared optical fiber has great mechanical strength, so that it does not burn because of degradation in the laser beam transmission capability, even after 2,000 times of repetitive bending with a curvature radius of 20 mm, which is the condition necessary for use within the interior of a body, and it exhibits excellent radiant optical characteristics. In particular, an infrared optical fiber with a diameter of 0.35 mm or less is preferred, because such an infrared optical fiber withstands over 10,000 times of repetitive bending under the same condition as above and can therefore be repeatedly used many times. Also, by applying an appropriate load to the infrared optical fiber, the infrared optical fiber, which is of straight shape free from curving and which has excellent radiant optical characteristics, can be produced stably with a short manufacturing period of time. Furthermore, an optical fiber cable using such an infrared optical fiber, in which the infrared optical fiber is housed in a protective tube containing a dry inert gas, can be repeatedly used under wet conditions of high humidity and can be stored under ambient conditions for a long period of time.

Abstract translation: 公开了一种红外线光纤，其氯化银和溴化银的组成比为氯化银的30〜70重量％，直径为0.5mm以下。 红外线光纤具有很大的机械强度，即使经过2000次的曲率半径为20mm的重复弯曲也是因为激光束透射能力的降低而不燃烧，这是内部使用的条件 的身体，它表现出优异的辐射光学特性。 特别地，直径为0.35mm以下的红外线光纤是优选的，因为这样的红外线光纤能够在与上述相同的条件下承受10,000次以上的重复弯曲，因此可以重复使用多次。 此外，通过对红外光纤施加适当的负载，可以在短的制造周期内稳定地制造直线形状不受弯曲且具有优异的辐射光学特性的红外线光纤。 此外，使用这样的红外光纤的光缆，其中红外光纤被容纳在含有干燥惰性气体的保护管中，可以在湿度高的湿度条件下重复使用，并且可以在环境条件下储存 很长一段时间

公开(公告)号：US4955689A

公开(公告)日：1990-09-11

申请号：US261958

申请日：1988-10-24

Applicant: Terry A. Fuller ,  Vijay J. Nadkarni ,  John R. Peschke

Inventor： Terry A. Fuller ,  Vijay J. Nadkarni ,  John R. Peschke

IPC: B29C47/00 ,  C03B37/023 ,  C03C13/04 ,  G02B6/10

CPC classification number: G02B6/102 ,  B29C47/0014 ,  C03B37/023 ,  C03C13/041 ,  B29C47/00 ,  C03B2201/84

Abstract: The present invention is directed to a cladded optical fiber and a process for manufacturing the same. The cladding and core are halide materials. An interface for inhibiting radiation scatter is provided at the boundary between the halide cladding and the halide core. The process steps include extruding a first halide or halide core from a first chamber, and extruding a second halide or halide cladding from a second chamber into contact with the halide core. The halide cladding is joined to the halide core at the boundary.

Abstract translation: 本发明涉及一种包层光纤及其制造方法。 包层和芯是卤化物材料。 在卤化物包层和卤化物核心之间的边界处提供用于抑制辐射散射的界面。 所述方法步骤包括从第一室挤出第一卤化物或卤化物核，以及将第二卤化物或卤化物包层从第二室挤出以与卤化物核接触。 卤化物包层在边界处连接到卤化物核心。

公开(公告)号：US4428646A

公开(公告)日：1984-01-31

申请号：US310348

申请日：1981-10-13

Applicant: Paul E. Lighty

Inventor： Paul E. Lighty

IPC: G03B37/00 ,  C03B37/012 ,  C03B37/027 ,  C30B13/00 ,  C30B15/00 ,  C30B29/12 ,  G02B1/02 ,  G02B6/00 ,  G02B6/028 ,  G02B6/10 ,  G02B5/172 ,  C03B37/025 ,  C03C3/30

CPC classification number: G02B6/102 ,  C03B37/01271 ,  C03B37/01297 ,  C03B37/027 ,  C30B13/00 ,  C30B29/12 ,  C30B29/62 ,  C03B2201/82 ,  C03B2201/84 ,  G02B6/0281

Abstract: An optical fiber with a graded index crystalline core (2,3) is made by filling a tube (1) with a mixture of two salts for which the one with the higher melting point has the lower refractive index. A graded composition results from partition effects when the fused salts are slowly cooled so that solidification proceeds uniformly inwardly from the tube wall. Fiber is pulled conventionally from the reesulting preform, and later is passed through a short hot zone to convert the core into single crystal form.

Abstract translation: 通过用具有较低折射率的两种盐的混合物填充管（1）来制备具有渐变折射率结晶芯（2,3）的光纤。 当熔融盐被缓慢冷却时，分级成分来自分配效应，使得固化从管壁均匀地进入。 纤维通常从再生预成型体中拉出，并且稍后通过短热区以将芯转变为单晶形式。

公开(公告)号：US4315667A

公开(公告)日：1982-02-16

申请号：US019168

申请日：1979-03-09

Applicant: Yukio Nakagome ,  Yoshinori Mimura

Inventor： Yukio Nakagome ,  Yoshinori Mimura

IPC: G02B1/02 ,  C03B37/023 ,  C30B15/00 ,  G02B6/00 ,  G02B5/172

CPC classification number: C03B37/023 ,  C30B15/00 ,  C30B29/62 ,  C03B2201/83 ,  C03B2201/84

Abstract: A fiber for optical transmission, in which a core thereof for propagating light is formed of a single crystal of an ionic substance except positive ions having no closed cell electronic structure and positive ions of strong covalency. The ionic substance is a binary system compound, a ternary or more multi-system compound, or a solid solution between a binary system compound and a ternary or more multi-system compound.

Abstract translation: 用于光传输的光纤，其中用于传播光的芯由离子物质的单晶形成，除了没有闭孔电子结构的正离子和强共价的正离子之外。 离子物质是二元体系化合物，三元或更多的多体系化合物，或二元体系化合物与三元以上多体系化合物之间的固溶体。

公开(公告)号：US3794704A

公开(公告)日：1974-02-26

申请号：US3794704D

申请日：1971-11-17

Applicant: STRONG J

Inventor： STRONG J

IPC: C03B11/08 ,  B29D11/00

CPC classification number: C03B11/08 ,  C03B2201/84 ,  C03B2215/49 ,  Y10S425/808

Abstract: IN THE METHOD DISCLOSED HEREIN, INFRAERD OPTICAL ELEMENTS ARE FORMED BY HOT FORGING A BOULE GROWN FROM A MOLTEN ALKALI HALIDE. THE BOULE IS HEATED TO A TEMPERATURE AT WHICH NATURALLY OCCURRING SURFACE FISSURES IN THE PARTICULAR ALKYL HALIDE WILL NOT PROPAGATE AND IS THEN WORKED BETWEEN A PAIR OOF DI COMPONENTS TO CONFORM THE BOULE TO THE DESIRED SHAPE.