公开(公告)号：US07702204B2

公开(公告)日：2010-04-20

申请号：US11627483

申请日：2007-01-26

Applicant: Cedric Gonnet ,  Elise Regnier ,  Frans Gooijer ,  Pascale Nouchi

Inventor： Cedric Gonnet ,  Elise Regnier ,  Frans Gooijer ,  Pascale Nouchi

IPC: G02B6/02

CPC classification number: C03B37/01291 ,  C03B37/01892 ,  C03B2201/02 ,  C03B2201/12 ,  C03B2201/31 ,  C03B2203/22 ,  C03B2203/23 ,  C03B2203/24 ,  C03C13/045 ,  C03C13/046 ,  C03C17/3417 ,  G02B6/03627 ,  G02B6/0365

Abstract: A method for manufacturing a final optical fiber preform via overcladding of a primary preform having a cross section area is disclosed. The method includes at least one manufacturing step of the primary preform by deposit of an inner cladding and of a central core inside a tube of fluorine-doped silica, the tube being chosen such that it has a cross section area that is maximally about 15% less than the cross section area of the primary preform. With the method of the invention it is possible to manufacture a preform of large capacity at reduced cost which allows the drawing of an optical fiber having reduced transmission losses.

Abstract translation: 公开了一种用于通过包覆具有横截面积的初级预型件制造最终光纤预制件的方法。 该方法包括通过将内包层和中心芯沉积在氟掺杂二氧化硅管内的初级预制件的至少一个制造步骤，该管被选择为使得其具有最大约15％的横截面积， 小于初级预制件的横截面面积。 利用本发明的方法，可以以低成本制造大容量的预成型件，这允许拉制具有降低的传输损耗的光纤。

公开(公告)号：US07346258B2

公开(公告)日：2008-03-18

申请号：US11028756

申请日：2005-01-05

Applicant: Masashi Ikeda ,  Masakazu Nakayama ,  Kuniharu Himeno ,  Masaaki Ohtsuka ,  Masakazu Oohashi ,  Daiichiro Tanaka

Inventor： Masashi Ikeda ,  Masakazu Nakayama ,  Kuniharu Himeno ,  Masaaki Ohtsuka ,  Masakazu Oohashi ,  Daiichiro Tanaka

IPC: G02B6/00

CPC classification number: G02B6/024 ,  C03B2201/02 ,  C03B2201/12 ,  C03B2201/28 ,  C03B2201/31 ,  C03B2203/23 ,  C03B2203/30 ,  C03C13/046 ,  C03C13/048 ,  G02B6/02 ,  G02B6/2551 ,  H01S3/06708 ,  H01S3/06729

Abstract: An optical fiber that includes a core containing a first concentration of germanium, an inner cladding arranged on the core, the inner cladding containing a second concentration of germanium and having a first diffusion coefficient, and an outer cladding arranged on the inner cladding, the outer cladding having a second diffusion coefficient, where the first diffusion coefficient is larger than the second diffusion coefficient, and where the first concentration of germanium is about 200% or more of the second concentration of germanium. An optical fiber constructed in this manner can be spliced with an optical fiber having a different MFD, such as a single-mode optical fiber or an erbium-doped optical fiber, with low splice loss and a sufficient splicing strength.

公开(公告)号：US20080031582A1

公开(公告)日：2008-02-07

申请号：US11627483

申请日：2007-01-26

Applicant: Cedric Gonnet ,  Elise Regnier ,  Frans Gooijer ,  Pascale Nouchi

Inventor： Cedric Gonnet ,  Elise Regnier ,  Frans Gooijer ,  Pascale Nouchi

IPC: C03B37/075 ,  G02B6/036

CPC classification number: C03B37/01291 ,  C03B37/01892 ,  C03B2201/02 ,  C03B2201/12 ,  C03B2201/31 ,  C03B2203/22 ,  C03B2203/23 ,  C03B2203/24 ,  C03C13/045 ,  C03C13/046 ,  C03C17/3417 ,  G02B6/03627 ,  G02B6/0365

Abstract: A method for manufacturing a final optical fiber preform via overcladding of a primary preform having a cross section area is disclosed. The method includes at least one manufacturing step of the primary preform by deposit of an inner cladding and of a central core inside a tube of fluorine-doped silica, the tube being chosen such that it has a cross section area that is maximally about 15% less than the cross section area of the primary preform. With the method of the invention it is possible to manufacture a preform of large capacity at reduced cost which allows the drawing of an optical fiber having reduced transmission losses.

Abstract translation: 公开了一种用于通过包覆具有横截面积的初级预型件制造最终光纤预制件的方法。 该方法包括通过将内包层和中心芯沉积在氟掺杂二氧化硅管内的初级预制件的至少一个制造步骤，该管被选择为使得其具有最大约15％的横截面积， 小于初级预制件的横截面面积。 利用本发明的方法，可以以低成本制造大容量的预成型件，这允许拉制具有降低的传输损耗的光纤。

公开(公告)号：US20060140565A1

公开(公告)日：2006-06-29

申请号：US11276165

申请日：2006-02-16

Applicant: Masashi Ikeda ,  Masakazu Nakayama ,  Kuniharu Himeno ,  Masaaki Ohtsuka ,  Masakazu Oohashi ,  Daiichiro Tanaka

Inventor： Masashi Ikeda ,  Masakazu Nakayama ,  Kuniharu Himeno ,  Masaaki Ohtsuka ,  Masakazu Oohashi ,  Daiichiro Tanaka

IPC: G02B6/036 ,  G02B6/02 ,  G02B6/00 ,  G02B6/028

CPC classification number: G02B6/024 ,  C03B2201/02 ,  C03B2201/12 ,  C03B2201/28 ,  C03B2201/31 ,  C03B2203/23 ,  C03B2203/30 ,  C03C13/046 ,  C03C13/048 ,  G02B6/02 ,  G02B6/2551 ,  H01S3/06708 ,  H01S3/06729

Abstract: An optical fiber that includes a core containing a first concentration of germanium, an inner cladding arranged on the core, the inner cladding containing a second concentration of germanium and having a first diffusion coefficient, and an outer cladding arranged on the inner cladding, the outer cladding having a second diffusion coefficient, where the first diffusion coefficient is larger than the second diffusion coefficient, and where the first concentration of germanium is about 200% or more of the second concentration of germanium. An optical fiber constructed in this manner can be spliced with an optical fiber having a different MFD, such as a single-mode optical fiber or an erbium-doped optical fiber, with low splice loss and a sufficient splicing strength.

Abstract translation: 一种光纤，其包括含有锗的第一浓度的芯，设置在芯上的内包层，包含锗的第二浓度并具有第一扩散系数的内包层以及布置在内包层上的外包层 包层具有第二扩散系数，其中第一扩散系数大于第二扩散系数，并且其中第一浓度的锗为第二浓度的锗的约200％以上。 以这种方式构造的光纤可以用具有不同MFD的光纤（例如单模光纤或掺铒光纤）进行拼接，具有低接头损耗和足够的拼接强度。

公开(公告)号：US20040146259A1

公开(公告)日：2004-07-29

申请号：US10353762

申请日：2003-01-29

Inventor： David Kalish ,  Jinkee Kim ,  Robert Lingle JR. ,  Yifei Qian

IPC: G02B006/22

CPC classification number: G02B6/03644 ,  C03B37/01228 ,  C03B2201/02 ,  C03B2201/12 ,  C03B2201/31 ,  C03B2203/22 ,  C03B2203/36 ,  G02B6/02014 ,  G02B6/02242 ,  G02B6/02271 ,  G02B6/0281 ,  G02B6/03611 ,  Y02P40/57

Abstract: The specification describes an improved optical fiber design in which the criteria for high performance in a Raman amplified optical system, such as moderate effective area, moderate dispersion, low dispersion slope, and selected zero dispersion wavelength, are simultaneously optimized. In preferred embodiments of the invention, the dispersion characteristics are deliberately made selectively dependent on the core radius. This allows manufacturing variability in the dispersion properties, introduced in the core-making process, to be mitigated during subsequent processing steps.

Abstract translation: 本说明书描述了一种改进的光纤设计，其中同时优化了拉曼放大光学系统中的高性能标准，例如中等有效面积，中等色散，低色散斜率和选择的零色散波长。 在本发明的优选实施例中，色散特性有选择地取决于芯半径。 这允许在后续处理步骤中减轻在制造过程中引入的分散性能的制造变异性。

公开(公告)号：US20030086667A1

公开(公告)日：2003-05-08

申请号：US09996632

申请日：2001-11-28

Inventor： George E. Berkey ,  Daiping Ma ,  Snigdharaj K. Mishra

IPC: G02B006/16

CPC classification number: G02B6/02266 ,  C03B2201/02 ,  C03B2201/31 ,  C03B2203/24 ,  C03B2203/36 ,  C03C13/045 ,  C03C25/1065 ,  G02B6/02019 ,  G02B6/02285 ,  G02B6/02395 ,  G02B6/0281 ,  G02B6/03611

Abstract: An optical waveguide fiber having a relatively large effective area which exhibits low attenuation, low PMD and low microbending sensitivity. A step-index refractive index profile is advantageously used.

Abstract translation: 具有相对较大有效面积的光波导光纤，其具有低衰减，低PMD和低微弯灵敏度。 有利地使用阶梯折射率折射率分布。

公开(公告)号：US06542683B1

公开(公告)日：2003-04-01

申请号：US09462739

申请日：2000-01-13

Applicant: Alan Frank Evans ,  Carlton Maurice Truesdale

Inventor： Alan Frank Evans ,  Carlton Maurice Truesdale

IPC: G02B622

CPC classification number: G02B6/03694 ,  C03B37/027 ,  C03B2201/02 ,  C03B2201/12 ,  C03B2201/28 ,  C03B2201/31 ,  C03B2203/22 ,  C03B2203/36 ,  C03B2205/40 ,  C03C13/046 ,  G02B6/03661 ,  G02B6/03688

Abstract: Suppression of stimulated Brillouin scattering (SBS) by broadening the energy spectrum of participating SBS photons and/or phonons is achieved in an optical fiber having a core with both radially nonuniform viscosity and CTE profiles provided by alternating layers of glass modifying dopants such as phosphorous and fluorine. The nonuniform thermal expansion and viscosity profiles impart a residual, permanent, nonuniform stress in the fiber. The SBS suppressing effect provided by the nonuniform stress can be controlled and enhanced by applying a uniform or nonuniform tensile force to the fiber as it is being drawn. A preform for the fiber is also disclosed.

Abstract translation: 通过扩展参与的SBS光子和/或声子的能谱来抑制受激布里渊散射（SBS），在具有径向不均匀粘度和CTE曲线的核心的光纤中实现，该曲线由玻璃修饰掺杂剂如磷和 氟。 不均匀的热膨胀和粘度特性在纤维中赋予残余的，永久的，不均匀的应力。 通过在拉伸时对纤维施加均匀或不均匀的拉伸力，可以控制和增强由不均匀应力提供的SBS抑制效果。 还公开了一种用于纤维的预制件。

公开(公告)号：US06376401B1

公开(公告)日：2002-04-23

申请号：US09387773

申请日：1999-09-01

Applicant: Shinichi Kondo ,  Takayuki Nakamura ,  Kazuhiko Fukuda ,  Naoyoshi Kamisugi ,  Nobu Kuzuu ,  Yoshinao Ihara ,  Hidetoshi Wakamatsu

Inventor： Shinichi Kondo ,  Takayuki Nakamura ,  Kazuhiko Fukuda ,  Naoyoshi Kamisugi ,  Nobu Kuzuu ,  Yoshinao Ihara ,  Hidetoshi Wakamatsu

IPC: C03B2000

CPC classification number: C03C3/06 ,  C03B19/1453 ,  C03B2201/02 ,  C03B2201/03 ,  C03B2201/04 ,  C03B2201/07 ,  C03B2201/075 ,  C03B2201/23 ,  C03C2201/11 ,  C03C2201/23 ,  C03C2203/44

Abstract: A synthetic silica glass having a high transmittance for vacuum ultraviolet rays, for example F2 excimer laser beam with a wavelength of 157 nm, a high uniformity and a high durability and useful for ultraviolet ray-transparent optical glass materials is produced from a high-purity silicon compound, for example silicon tetrachloride, by heat treating an accumulated porous silica material at a temperature not high enough to convert the porous silica material to a transparent silica glass in an inert gas atmosphere for a time sufficient to cause the OH groups to be condensed and removed from the glass, and exhibits substantially no content of impurities other than OH group a difference between highest and lowest fictional temperatures of 50° C. or less and a transmittance of 157 nm ultraviolet rays through a 10 mm optical path of 60% or more, and optically a OH group content of 1 to 70 ppm, a Cl content less than 1 ppm, a total content of impurity metals of 50 ppb or less, a content of each individual impurity metal less than 10 ppb, and an ultraviolet ray-transmittance at 172 to 200 nm of 40% or more even after the glass is exposed to an irradiation of ultraviolet rays at 160 to 300 nm for one hour.

Abstract translation: 对于真空紫外线具有高透射率的合成二氧化硅玻璃，例如波长为157nm的F2准分子激光束，高均匀性和高耐久性并且可用于紫外线透明光学玻璃材料由高纯度 硅化合物，例如四氯化硅，通过在不足够高的温度下热处理积聚的多孔二氧化硅材料，以在惰性气体气氛中将多孔二氧化硅材料转化为透明的石英玻璃足以使OH基团冷凝的时间 并且从玻璃中除去，并且基本上不含OH基团中的杂质含量，最高和最低虚构温度之间的差别为50℃或更低，通过10mm光路的157nm紫外线的透射率为60％或 更多地，光学地含有1至70ppm的OH基含量，小于1ppm的Cl含量，50ppb以下的杂质金属的总含量， 即使玻璃暴露于160〜300nm的紫外线照射1小时，每一种杂质金属小于10ppb，而在172〜200nm的紫外线透射率为40％以上。

公开(公告)号：US06253580B1

公开(公告)日：2001-07-03

申请号：US08994970

申请日：1997-12-19

Applicant: Mikhail Ivanovich Gouskov ,  Evguenic Borisovich Danilov ,  Mohammad Afzal Aslami ,  Dau Wu

Inventor： Mikhail Ivanovich Gouskov ,  Evguenic Borisovich Danilov ,  Mohammad Afzal Aslami ,  Dau Wu

IPC: C03B37013

CPC classification number: C03B37/01426 ,  C03B37/01205 ,  C03B2201/02 ,  C03B2201/12

Abstract: An apparatus and method for producing a tubular member, which is suitable for use as a starter tube or an optical fiber preform, on a rotating cylindrical target mounted on a lathe. The tubular member is made by means of plasma outside vapor deposition. In this process, a source gas comprising SiCl4 and, optionally, a fluorine-laden chemical, is introduced into an air plasma. Both the air and the source gas are dry gases and have low hydroxyl content. The air plasma is created by a high-frequency induction plasma torch which travels along the length of the target on a carriage. The torch is provided with a short U-shaped gutter on either side of its rim directly beneath the target and the growing tubular member. This gutter helps channel reaction products of the source gas and the plasma so as to enhance deposition on the growing tubular member. The torch is further provided with an induction coil having a plurality of windings, the uppermost winding being maintained a predetermined distance from the surface of the tubular member as the latter is built up.

Abstract translation: 一种在安装在车床上的旋转圆柱形靶上制造适合用作起动管或光纤预制棒的管状部件的装置和方法。 管状构件通过等离子体外部气相沉积制成。 在该方法中，将包含SiCl 4和任选的含氟化学品的源气体引入空气等离子体中。 空气和源气都是干燥气体，羟基含量低。 空气等离子体是通过高速感应等离子体焰炬而产生的，该等离子体焰炬沿着目标的长度在滑架上行进。 火炬在其边缘的任一侧的任一侧设置有短的U形沟槽，直接在目标下方和生长的管状构件。 该沟槽有助于源气体和等离子体的反应产物，以增强生长的管状构件上的沉积。 割炬还设置有具有多个绕组的感应线圈，最上面的绕组保持与管状构件的表面预定距离，因为它们被构建。

公开(公告)号：US5711903A

公开(公告)日：1998-01-27

申请号：US698287

申请日：1996-08-14

Applicant: Takeshi Yagi ,  Masato Oku ,  Takayuki Morikawa ,  Tsuguo Sato ,  Kazuaki Yoshida

Inventor： Takeshi Yagi ,  Masato Oku ,  Takayuki Morikawa ,  Tsuguo Sato ,  Kazuaki Yoshida

IPC: C01B33/12 ,  C03B37/012 ,  B29D11/00 ,  B27N3/00 ,  B29C59/00

CPC classification number: C01B33/126 ,  C01B33/12 ,  C03B37/0128 ,  C03B2201/02 ,  C03B2201/10 ,  C03B2201/31 ,  C03B2201/34 ,  C03B2201/42

Abstract: The present invention provides a method of manufacturing a porous preform for an optical fiber, including the steps of removing impure particles from silica powder while being stirred in an alkaline liquid phase, and obtaining the porous preform for an optical fiber by applying the powder forming method to the silica powder used as a main raw material. The present invention further has a method of manufacturing a porous preform for an optical fiber, including the step of preparing a forming material by adding fine particles having a particle diameter satisfying the following formula (I) to the silica powder, and obtaining the porous preform by applying the powder forming method to the forming material: ##EQU1## wherein d: diameter of fine particles, and D: diameter of silica powder.

Abstract translation: 本发明提供一种制造光纤用多孔预成型体的方法，包括以下步骤：在碱性液相中搅拌的同时从二氧化硅粉末中除去不纯的颗粒，并通过施加粉末形成方法获得光纤用多孔预成型体 以二氧化硅粉末为主要原料。 本发明还涉及一种制造光纤用多孔预成型体的方法，包括通过将具有下述通式（I）的粒径的微粒添加到二氧化硅粉末中而制备成形材料的步骤，得到多孔预成型体 通过对成形材料施加粉末形成方法：其中d：细颗粒直径，D：二氧化硅粉末的直径。