公开(公告)号：US5949941A

公开(公告)日：1999-09-07

申请号：US976003

申请日：1997-11-21

Applicant: David John DiGiovanni

Inventor： David John DiGiovanni

IPC: G02B6/02 ,  G02B6/024 ,  G02B6/036 ,  G02B6/10 ,  H01S3/06 ,  H01S3/067 ,  H01S3/094 ,  H01S3/07

CPC classification number: G02B6/03622 ,  G02B6/02395 ,  G02B6/105 ,  H01S3/06708 ,  C03B2201/10 ,  C03B2201/12 ,  C03B2201/31 ,  C03B2201/34 ,  C03B2201/36 ,  C03B2203/12 ,  C03B2203/30 ,  G02B6/03638 ,  H01S3/06729 ,  H01S3/094003

Abstract: A cladding-pumped fiber structure is disclosed in which mode mixing of pump light injected into the fiber is induced by index modulation. In one embodiment, the index modulation is created by a stress-inducing region disposed in the cladding which simultaneously maintains the polarization within the core to produce a polarization-maintaining fiber useful for multi-mode and laser applications.

Abstract translation: 公开了一种包覆泵浦的纤维结构，其中通过折射率调制来引入注入光纤的泵浦光的模式混合。 在一个实施例中，折射率调制由设置在包层中的应力诱导区域产生，其同时保持芯内的偏振，以产生用于多模和激光应用的偏振保持光纤。

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。

公开(公告)号：US5710852A

公开(公告)日：1998-01-20

申请号：US462702

申请日：1995-06-05

Applicant: Dieter Weber

Inventor： Dieter Weber

IPC: G02B6/00 ,  C03B37/018 ,  C23C16/30 ,  H01S3/06 ,  H01S3/067 ,  H01S3/17 ,  G02B6/02 ,  G02B6/16

CPC classification number: H01S3/06708 ,  C03B37/01807 ,  C23C16/30 ,  C03B2201/10 ,  C03B2201/12 ,  C03B2201/28 ,  C03B2201/31 ,  C03B2201/34 ,  C03B2201/36

Abstract: An optical waveguide for fiber-optic amplifiers is disclosed where the Progression of the fluorescence band of optical waveguides that are doped with erbium and aluminum can be additionally flattened if the core contains fluorine, e.g., in the form of ErF.sub.3 and AIF.sub.3, as an additional doping agent.

Abstract translation: 公开了一种用于光纤放大器的光波导，其中如果芯包含氟，例如以ErF3和AIF3的形式作为附加的，则掺杂有铒和铝的光波导的荧光带的进展可以被额外地变平 掺杂剂。

公开(公告)号：US5679127A

公开(公告)日：1997-10-21

申请号：US573673

申请日：1995-12-18

Applicant: Nonna Kopylov ,  Ahmet Refik Kortan

Inventor： Nonna Kopylov ,  Ahmet Refik Kortan

IPC: G02B6/00 ,  C03B37/012 ,  C03C13/04 ,  C03B37/022

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: A method and apparatus are provided for drawing a self-aligned core fiber free of surface contamination and inserting the core fiber into a cladding material 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: 提供了一种方法和装置，用于绘制不受表面污染的自对准芯纤维，并将芯纤维插入包层材料中以制造光纤预制件。 具有高质量芯包层界面的单模或多模光纤可直接从本文所述的预成型件中拉出。

公开(公告)号：US5642454A

公开(公告)日：1997-06-24

申请号：US573672

申请日：1995-12-18

Applicant: Nonna Kopylov ,  Ahmet Refik Kortan

Inventor： Nonna Kopylov ,  Ahmet Refik Kortan

IPC: G02B6/00 ,  C03B37/012 ,  C03C13/04 ,  G02B6/16

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: A method and apparatus are provided for drawing a self-aligned core fiber free of surface contamination and inserting the core fiber into a cladding material 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: 提供了一种方法和装置，用于绘制不受表面污染的自对准芯纤维，并将芯纤维插入包层材料中以制造光纤预制件。 具有高质量芯包层界面的单模或多模光纤可直接从本文所述的预成型件中拉出。

公开(公告)号：US5573571A

公开(公告)日：1996-11-12

申请号：US347978

申请日：1994-12-01

Applicant: Nonna Kopylov ,  Ahmet R. Kortan

Inventor： Nonna Kopylov ,  Ahmet R. Kortan

IPC: G02B6/00 ,  C03B37/012 ,  C03C13/04 ,  C03B37/02

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: A method and apparatus are provided for drawing a self-aligned core fiber free of surface contamination and inserting the core fiber into a cladding material 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: 提供了一种方法和装置，用于绘制不受表面污染的自对准芯纤维，并将芯纤维插入包层材料中以制造光纤预制件。 具有高质量芯包层界面的单模或多模光纤可直接从本文所述的预成型件中拉出。

公开(公告)号：US5447744A

公开(公告)日：1995-09-05

申请号：US151815

申请日：1993-11-15

Applicant: Francis Bryselbout

Inventor： Francis Bryselbout

IPC: B01J4/02 ,  B01J4/00 ,  C01B33/04 ,  C01B35/16 ,  C03B37/014 ,  C23C16/52 ,  F17C13/02 ,  G01N9/00 ,  B05D1/00

CPC classification number: C03B37/01413 ,  B01J4/008 ,  C23C16/52 ,  F17C13/023 ,  G01N9/002 ,  C03B2201/10 ,  C03B2201/28 ,  F17C2223/0123 ,  F17C2250/0421 ,  F17C2250/0426 ,  F17C2250/043 ,  F17C2250/0439 ,  F17C2250/0447 ,  F17C2250/0495 ,  F17C2250/0636 ,  Y02E60/321 ,  Y10T137/0335 ,  Y10T137/2504 ,  Y10T137/2506

Abstract: A process for supplying a gas to a reactor comprising the steps of:(i) continuously measuring density of the gas, the gas including at least one component which is susceptible to formation of an undesired side product as shown by a variation in density of the gas; and(ii) modifying feed conditions of the gas if formation of the undesired side product is shown by a variation in the density of the gas.The process can be employed to continuously monitor the content of diborane (B.sub.2 H.sub.6) in a mixture with silane (SiH.sub.4) in a process for producing a borophosphosilicate glass.An apparatus for supplying a gas to a reactor is also disclosed.

公开(公告)号：US5160358A

公开(公告)日：1992-11-03

申请号：US692457

申请日：1991-04-17

Applicant: Osamu Kondo ,  Masukazu Hirata ,  Mitsuzo Arii

Inventor： Osamu Kondo ,  Masukazu Hirata ,  Mitsuzo Arii

IPC: C03B19/12 ,  C03B37/016 ,  C03C23/00

CPC classification number: C03B37/016 ,  C03B19/12 ,  C03C23/0095 ,  C03B2201/10 ,  C03B2201/28 ,  C03B2201/30 ,  C03B2201/31 ,  C03B2201/32 ,  C03B2201/40 ,  C03B2201/42 ,  C03B2201/54 ,  C03B2203/22 ,  Y02P40/57 ,  Y10S65/901

Abstract: A process for easily producing a silica glass plate having an internal refractive index distribution suitable for a planar optical waveguide involves carrying out the following steps.(a) A porous silica gel plate produced by a sol-gel method is kept in a reactor, the pressure of which is reduced to a substantially vacuum state.(b) Germanium tetrachloride gas is introduced into the reactor at a partial pressure appropriate to establish an absorption equilibrium between a desired concentration of germanium tetrachloride in said porous silica gel plate and a partial pressure of germanium tetrachloride introduced.(c) The partial pressure of germanium tetrachloride in step (b) is reduced so as to desorb germanium tetrachloride from the surface of the porous silica gel plate.(d) The porous silica gel plate having a described concentration distribution is brought into contact with water within or outside the reactor so as to fix the distribution.(e) The porous silica gel plate is calcined at a temperature of not less than 900.degree. C. to render it nonporous.

Abstract translation: 用于容易地生产具有适合于平面光波导的内部折射率分布的石英玻璃板的方法包括进行以下步骤。 （a）将通过溶胶 - 凝胶法制备的多孔硅胶板保持在反应器中，其压力降低至基本上真空状态。 （b）将四氯化锗气体以适于建立所述多孔硅胶板中所需浓度的四氯化锗与引入的四氯化锗的分压之间的吸收平衡的分压引入反应器。 （c）步骤（b）中的四氯化锗的分压降低，从而从多孔硅胶板的表面解吸四氯化锗。 （d）具有所述浓度分布的多孔硅胶板与反应器内部或外部的水接触以固定分布。 （e）多孔硅胶板在不低于900℃的温度下煅烧，使其无孔。

公开(公告)号：US5152818A

公开(公告)日：1992-10-06

申请号：US612103

申请日：1990-11-09

Applicant: George E. Berkey ,  Venkata A. Bhagavatula ,  Robert M. Hawk ,  Steven H. Tarcza

Inventor： George E. Berkey ,  Venkata A. Bhagavatula ,  Robert M. Hawk ,  Steven H. Tarcza

IPC: G02B6/00 ,  C03B37/012 ,  C03B37/014 ,  C03B37/018 ,  C03B37/02 ,  C03C15/00 ,  C03C25/68 ,  G02B6/024

CPC classification number: C03B37/01234 ,  C03B37/01217 ,  C03B37/01228 ,  C03B37/0124 ,  C03B37/01248 ,  C03B37/0126 ,  C03B37/01413 ,  C03B37/01446 ,  C03B37/01486 ,  C03C15/00 ,  C03C25/68 ,  C03B2201/10 ,  C03B2203/31 ,  C03B2207/06 ,  C03B2207/14 ,  C03B2207/40

Abstract: Disclosed is a method of making a polarization retaining single-mode optical fiber. Longitudinal grooves are formed on opposite sides of a cylindrically-shaped core perform having a glass core surrounded by cladding glass. The core preform is inserted into a glass tube, the tube is shrunk onto the core preform, and the interface between the core preform and the tube is fused to form a solid preform having longitudinal apertures on opposite sides of the core. An etchant gas is flowed through the apertures to enlarge the apertures into holes having a substantially round cross-section. Inserted into each aperture is a stress rod formed of glass having a coefficient of expansion different from that of the cladding glass. The resultant draw blank is drawn to form a single-mode optical fiber having a core that is subjected to a stress-induced birefringence.

公开(公告)号：US4902650A

公开(公告)日：1990-02-20

申请号：US219503

申请日：1988-07-15

Applicant: J. Brian Caldwell ,  Duncan T. Moore

Inventor： J. Brian Caldwell ,  Duncan T. Moore

IPC: C03C1/00 ,  C03C4/00 ,  C03C3/076 ,  C03C3/083 ,  C03C3/089

CPC classification number: C03C1/006 ,  C03B2201/10 ,  C03B2201/32 ,  C03B2201/40 ,  C03B2201/42 ,  Y10S501/90

Abstract: A sol-gel method for making gradient-index glass and a novel composition therefor, comprising at least a ternary system of metal alkoxides.

Abstract translation: 用于制备梯度折射率玻璃的溶胶 - 凝胶法及其组合物，其至少包括金属醇盐的三元体系。