公开(公告)号：EP1184339A2

公开(公告)日：2002-03-06

申请号：EP00250447.0

申请日：2000-12-21

Applicant: A.R.T.-Photonics GmbH

Inventor： Artiouchenko, Viatcheslav

IPC: C01G5/00 ,  C01D3/10 ,  C01D3/12 ,  C01D17/00 ,  C01G15/00 ,  C03B37/012 ,  C03B37/023 ,  G02B6/24 ,  G02B6/22

CPC classification number: G02B6/02061 ,  B82Y20/00 ,  C01B9/00 ,  C01B9/02 ,  C01B9/04 ,  C01D3/04 ,  C01D3/10 ,  C01G5/02 ,  C03B37/01265 ,  C03B37/01274 ,  C03B37/023 ,  C03B2201/84 ,  C03C13/008 ,  C03C13/041 ,  G02B6/02042 ,  G02B6/1225 ,  G02B6/262 ,  G02B6/2821

Abstract: Die Erfindung betrifft ein Verfahren zum Herstellen eines metallhalogenidhaltigen Ausgangsmaterials für eine optische Faser, wobei das Ausgangsmaterial einen vorbestimmten Brechungsindex aufweist, mit den Schritten:

Mischen halogenhaltiger Gase zu einem Gasgemisch mit einem Partialdruckverhältnis, das vom vorbestimmten Brechungsindex des Ausgangsmaterials abhängt,
Herbeiführen einer chemischen Reaktion des Gasgemisches mit einem Metall zu mindestens einem Reaktionsprodukt bei einer ersten Temperatur oberhalb der Schmelztemperatur des Reaktionsproduktes und
Abkühlen des Reaktionsproduktes auf eine zweite Temperatur unterhalb der Schmelztemperatur.

Abstract translation: 本发明涉及一种方法，用于生产起始材料用于光学纤维，metallhalogenidhaltigen其中具有预定的折射率，其包括以下步骤的起始物质制备：卤素气体的混入的气体混合物具有的分压比，这取决于起始材料的预定折射率，带来的化学反应 气体混合物在高于该反应产物的熔化温度的第一温度的金属的至少一个反应产物和反应产物冷却到低于熔化温度的第二温度。

公开(公告)号：EP0655423B1

公开(公告)日：2001-08-01

申请号：EP93118812.2

申请日：1993-11-23

Applicant: CeramOptec GmbH

Inventor： Nabatov, Alexey ,  Kuzin, Eugeny ,  Artjushenko, Vjacheslav, Dr. ,  Neuberger, Wolfgang, Dr.

IPC: C03B37/023 ,  C03C13/04 ,  C03C13/00 ,  G02B6/10 ,  C30B33/00

CPC classification number: G02B6/02033 ,  C03B37/023 ,  C03B2201/84 ,  C03C3/32 ,  C30B29/12 ,  C30B33/00 ,  G02B6/102

Abstract: In one embodiment, the present method involves reducing turbulence and friction during extrusion by moving an extrusion die in a direction opposite to that of the extruded fiber and against a stationary preform arrangement inside the extrusion chamber. In another embodiment, an AgClxBr1-x (x from 0 to 1) preform is doped with AgI or with a compound of the formula: -MY, wherein M is selected from Li, Na, K, Rb, Cs; or MY2, wherein M is selected from Mg, Ca, Sr, Pb, Ba, Cd or Hg; and wherein Y is selected from Cl, Br, or I. The resulting fiber has a more even core/clad interface with a decrease in grain size towards the fiber surface and a grain texture elongated along the fiber axis. This structure together with strengthening and stabilizing dopants, added to the fiber material, gives decreased and stabilized optical losses and a higher elasticity of fibers.

公开(公告)号：EP1059270A2

公开(公告)日：2000-12-13

申请号：EP00117913.4

申请日：1995-11-21

Applicant: AT&T Corp.

Inventor： Kopylov, Nonna ,  Kortan, Ahmet Refik

IPC: C03B37/012

CPC classification number: C03B37/01265 ,  C03B37/01274 ,  C03B2201/10 ,  C03B2201/62 ,  C03B2201/82 ,  C03B2201/84 ,  C03B2201/86 ,  C03B2203/12 ,  C03B2203/22 ,  C03B2203/24 ,  C03B2205/02

Abstract: Apparatus (10) is provided for drawing a self-aligned core fiber (34) free of surface contamination and inserting the core fiber (34) into a cladding material (33) to make an optical fiber preform. Single or multi-mode optical fibers having high quality core-clad interfaces can be directly drawn from the preforms described herein.

Abstract translation: 装置（10）被提供用于绘制自由表面污染的自对准芯纤维（34）和将所述芯纤维（34）转换成的包层材料（33），以使一个光纤预制件。 具有高质量纤芯 - 包层界面单或多模光纤可以从所描述的预成形坯可以直接绘制。

公开(公告)号：EP0581324A1

公开(公告)日：1994-02-02

申请号：EP93113997.6

申请日：1989-02-15

Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

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

IPC: C03B37/023 ,  C03C13/00 ,  C30B33/00 ,  G02B6/10

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

Abstract: The optical fiber for infrared transmission 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 0.35 mm or less. The infrared optical fiber has high mechanical strength, and thus does not burn due to degradation in the laser beam transmission capability, even after 10,000 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. Also, by applying an appropriate load to the optical fiber preform, an infrared optical fiber of straight shape free from curving and having excellent radiant optical characteristics, can be produced stably within a short manufacturing time period. The appropriate applied load is a tensile load greater than the yield stress but smaller than the rupture stress of the unclad optical fiber, and is applied during the preform drawing operation.

Abstract translation: 用于红外透射的光纤具有氯化银和溴化银的组成比在氯化银的30至70重量％的范围内，并且具有0.35mm或更小的直径。 红外线光纤具有高的机械强度，即使经过10,000次的曲率半径为20mm的重复弯曲也是由于激光束透射能力的降低而不燃烧，这是在内部使用的条件 一个身体，它表现出优异的辐射光学特性。 此外，通过对光纤预制棒施加适当的负载，可以在短的制造时间内稳定地制造没有弯曲并且具有优异的辐射光学特性的直形红外光纤。 适当的施加载荷是大于屈服应力但小于未包覆光纤的断裂应力的拉伸载荷，并且在预成型件拉伸操作期间施加。

公开(公告)号：EP0450645A1

公开(公告)日：1991-10-09

申请号：EP91105415.3

申请日：1991-04-05

Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

Inventor： Kayashima, Kazuhiro ,  Tateishi, Fumikazu ,  Ohshima, Kiyoko

IPC: C03C13/04 ,  C03B37/023 ,  G02B6/10 ,  C30B33/00 ,  C30B29/12

CPC classification number: G02B6/102 ,  B29C47/00 ,  B29C47/0014 ,  C03B37/023 ,  C03B2201/84 ,  C03C13/008 ,  C03C13/041 ,  C30B15/24 ,  C30B29/12 ,  C30B33/00

Abstract: An infrared optical fiber is provided which includes silver halide polycrystals having a composition ratio of silver chloride and silver bromide in the range of 30 to 70 percent by weight of silver chloride, and having an average grain size of 5 µm or less. There also is provided a method of manufacturing such an infrared optical fiber, in which a silver halide single crystal having a composition ratio of silver chloride and silver bromide in the range of 30 to 70 percent by weight of silver chloride is extruded into an infrared optical fiber, while applying an extruding pressure of 70 kg/mm² or more and a tensile load which is greater than the yield strength and smaller than the tensile strength.

Abstract translation: 提供了一种红外光纤，其包括氯化银和溴化银的组成比在氯化银重量的30至70％范围内并且平均晶粒尺寸为5μm或更小的卤化银多晶体。 还提供了一种制造这种红外光纤的方法，其中将氯化银和溴化银的组成比在氯化银的30至70重量％范围内的卤化银单晶挤出成红外光学 纤维，同时施加70kg / mm 2以上的挤出压力和大于屈服强度并小于拉伸强度的拉伸载荷。

公开(公告)号：EP0237907B1

公开(公告)日：1990-12-05

申请号：EP87103365.0

申请日：1987-03-09

Applicant: SUMITOMO ELECTRIC INDUSTRIES LIMITED

Inventor： Takahasi, Kenichi c/o Osaka Works ,  Yoshida, Noriyuki c/o Osaka Works

IPC: C03C13/04 ,  C03B37/02 ,  G02B6/10 ,  C30B29/12 ,  C30B33/00

CPC classification number: G02B6/02 ,  B29C47/00 ,  B29C47/0014 ,  C03B37/023 ,  C03B2201/84 ,  C03C13/008 ,  C30B29/12 ,  C30B33/00 ,  Y10S65/15 ,  Y10S65/16

Abstract: A crystalline metal halide optical fiber having a two or a three layer structure. The core consists of relatively small crystals. An inner crust surrounds the core and has the same composition but consists of relatively large crystals. An optical outer crust surrounds the inner crust and has a different composition from the inner crust but has generally the same sized crystals. The differing crystal sizes can be produced from a preform by extruding a crystal at a low uniform temperature at a relatively high speed.

公开(公告)号：EP0196665B1

公开(公告)日：1988-07-13

申请号：EP86104490.7

申请日：1986-04-02

Applicant: CSELT Centro Studi e Laboratori Telecomunicazioni S.p.A.

Inventor： Parisi, Giuseppe ,  Roba, Giacomo

IPC: C03B37/014

CPC classification number: C03B37/01446 ,  C03B37/014 ,  C03B37/027 ,  C03B2201/82 ,  C03B2201/84 ,  C03B2205/30

公开(公告)号：EP0056262B1

公开(公告)日：1986-11-12

申请号：EP82100098.1

申请日：1982-01-08

Applicant: SUMITOMO ELECTRIC INDUSTRIES LIMITED

Inventor： Murakami, Kazuhito c/o Osaka Works ,  Takahashi, Kenichi c/o Osaka Works

IPC: C30B29/12 ,  C30B15/08 ,  G02B6/04

CPC classification number: G02B6/102 ,  B29C47/00 ,  B29C47/0014 ,  C03B37/023 ,  C03B37/0235 ,  C03B2201/84 ,  C03C13/008 ,  C03C25/104 ,  C30B15/00 ,  C30B15/007 ,  C30B15/08 ,  C30B29/12 ,  G02B1/02 ,  Y02P40/57

Abstract: An infrared light transmitting optical fiber and a process for producing the same are disclosed. The infrared light transmitting optical fiber is produced by a process comprising preparing a core crystalline fiber having a high melting point and a high refractive index, forming around the core fiber a continuous layer of cladding crystal having a low melting point and a low refractive index, and subsequently forming a protective layer on the resulting step-index fiber.

公开(公告)号：EP0149306A3

公开(公告)日：1986-10-08

申请号：EP84307503

申请日：1984-10-31

Applicant: FULLER RESEARCH CORPORATION

Inventor： Fuller, Terry A.

IPC: C30B29/12 ,  C30B33/00 ,  C03C13/04 ,  C03C25/02 ,  C03B37/023 ,  G02B06/44 ,  B29C47/36

CPC classification number: B29D11/00711 ,  B29B11/14 ,  B29C47/0016 ,  B29C47/128 ,  B29C47/54 ,  B29D11/00701 ,  B29D11/00721 ,  C03B37/023 ,  C03B37/0235 ,  C03B2201/84 ,  C03B2205/04 ,  C03C13/041 ,  C03C25/106 ,  C30B29/12 ,  C30B33/00 ,  G02B6/102 ,  Y02P40/57

Abstract: Cladded halide optical fibres for infrared transmission are made by covering a two-part halide compound billet (15), comprising a core (10), and a sleeve (8), with a polymer layer (12), heating the assembly and drawing it through a die (14). The halide compound forming the sleeve (8) has a lower refractory index than the halide compound forming the billet core (10). A second polymer layer (31) can be provided between the respective halide compounds.

公开(公告)号：EP0172988A1

公开(公告)日：1986-03-05

申请号：EP85104311.7

申请日：1985-04-10

Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

Inventor： Ikedo, Masaru ,  Watari, Masafumi ,  Hayashi, Yoshiaki

IPC: G02B6/00 ,  C30B33/00 ,  C30B29/62

CPC classification number: G02B6/102 ,  C03B37/023 ,  C03B2201/84 ,  C03C13/008 ,  C30B29/12 ,  C30B29/62 ,  C30B33/00

Abstract: An optical fiber which is able to transmit high power infrared energy, and is flexible and long in life is described. The fiber consists essentially of a mixed crystal of 40 to 45 wt% of thallium bromide and the balance of thallium iodide, each having a purity not less than 99.9%. The fiber is free of any particles having a size not smaller than 1 µm.