公开(公告)号：US4478489A

公开(公告)日：1984-10-23

申请号：US479490

申请日：1983-03-28

Applicant: Michael G. Blankenship ,  Donald B. Keck

Inventor： Michael G. Blankenship ,  Donald B. Keck

IPC: C03B37/012 ,  C03B37/014 ,  C03B37/018 ,  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 fabricated in a manner such that the core thereof is subjected to a stress-induced birefringence. This characteristic is accomplished by introducing into the cladding region of the fiber on opposite sides of the core longitudinally extending regions of glass having a thermal coefficient of expansion different from that of the remainder of the cladding. A number of novel techniques are disclosed for forming such a fiber.

Abstract translation: 单模光波导以这样的方式制造，使得其芯受到应力诱导的双折射。 该特性是通过将纤维纵向延伸的区域的纤维的相对两侧的纤维的包层区域引入热膨胀系数不同于包层的其余部分而实现的。 公开了用于形成这种纤维的许多新技术。

公开(公告)号：US4298365A

公开(公告)日：1981-11-03

申请号：US165652

申请日：1980-07-03

Applicant: Alan C. Bailey ,  Alan J. Morrow

Inventor： Alan C. Bailey ,  Alan J. Morrow

IPC: C03B37/018 ,  C03B8/04 ,  C03B37/014 ,  C03B37/025 ,  C03C13/04 ,  C03C17/02 ,  G02B6/00 ,  G02B6/028 ,  G02B6/036 ,  C03B19/06 ,  C03B37/075

CPC classification number: G02B6/03611 ,  C03B37/01413 ,  C03B37/01446 ,  G02B6/0281 ,  C03B2201/02 ,  C03B2201/28 ,  C03B2201/31 ,  C03B2203/22 ,  C03B2207/87 ,  G02B6/0288

Abstract: A method of making solid glass articles by the flame hydrolysis technique. A thin stratum of low viscosity glass soot is applied to the surface of a mandrel. First and second coatings of glass soot are deposited on the surface of the thin stratum to form a porous preform. The refractive index of the soot particles of the first coating is greater than that of the soot of the second coating, and the soot of the first coating has a viscosity lower than that of the second coating. The mandrel is removed, and the soot preform is subjected to a high temperature whereby it is consolidated to form a dense glass blank. The glass surface tension and the relative viscosities of the inner and outer portions of the preform cause the aperture to close during the consolidation process. The thin stratum, which preferably includes P.sub.2 O.sub.5, smoothes over the damage caused by removing the mandrel and reduces or even eliminates seed formation at the axis of the resultant glass blank. The blank may be heated and drawn into a filament, or it may be sliced into optical windows, lenses or the like.

Abstract translation: 通过火焰水解技术制备固体玻璃制品的方法。 将低粘度玻璃烟灰的薄层施加到心轴的表面。 玻璃烟灰的第一和第二涂层沉积在薄层的表面上以形成多孔预型体。 第一涂层的烟灰颗粒的折射率大于第二涂层的烟灰的折射率，第一涂层的烟灰的粘度低于第二涂层的烟灰。 去除心轴，并且将烟灰预制件经受高温，由此将其固结以形成致密的玻璃坯料。 预成型件的内部和外部的玻璃表面张力和相对粘度在固结过程中导致孔隙闭合。 优选地包括P2O5的薄层平滑了由去除心轴引起的损伤，并减少或甚至消除了在所得玻璃坯料的轴线处的种子形成。 坯料可以被加热并拉成长丝，或者可以将其切成光学窗口，透镜等。

公开(公告)号：US4242375A

公开(公告)日：1980-12-30

申请号：US930841

申请日：1978-08-03

Applicant: Satoshi Shiraishi ,  Kunio Fujiwara ,  Shiro Kurosaki

Inventor： Satoshi Shiraishi ,  Kunio Fujiwara ,  Shiro Kurosaki

IPC: B29D11/00 ,  C03B23/207 ,  C03B37/012 ,  C03B37/014 ,  C03B37/018 ,  C03B37/027 ,  C03C13/04 ,  G02B6/02 ,  B05D5/06

CPC classification number: C03C13/045 ,  B29D11/00663 ,  C03B23/207 ,  C03B37/01211 ,  C03B37/01413 ,  C03B37/01446 ,  C03B37/01807 ,  C03B37/027 ,  G02B6/02 ,  G02B6/03611 ,  G02B6/03627 ,  C03B2201/02 ,  C03B2201/08 ,  C03B2201/10 ,  C03B2201/12 ,  C03B2203/16 ,  C03B2203/22 ,  Y10S65/16

Abstract: A process for producing an optical transmission fiber is provided which comprises feeding highly pure halides, hydrides or organic compounds of Si and B by way of carrier gas on the outer surface of a fused silica rod or a fused silica pipe, or inner surface of a fused silica pipe, oxidizing them and depositing the products to form a pure fused silica layer or a doped fused silica layer containing B.sub.2 O.sub.3, melting the pipe and the deposited layer followed by a spinning. The SiO.sub.2 layer can alternatively contain fluorine instead of B.sub.2 O.sub.3. A further SiO.sub.2 layer can be deposited thereon to improve the spinning processability and lower the index of refraction of the B.sub.2 O.sub.3 containing layer.

Abstract translation: 提供了一种制造光传输纤维的方法，其包括在熔融石英棒或熔融石英管的外表面上通过载气将高纯度卤化物，氢化物或Si和B的有机化合物进料，或 熔融石英管，氧化它们并沉积产物以形成纯熔融石英层或含有B2O3的掺杂熔融石英层，熔化管和沉积层，随后进行纺丝。 SiO 2层可以替代地含有氟代替B2O3。 可以在其上沉积另外的SiO 2层以改善纺丝加工性能并降低含B2O3的层的折射率。

公开(公告)号：US4038370A

公开(公告)日：1977-07-26

申请号：US616077

申请日：1975-09-23

Applicant: Tadashi Tokimoto ,  Yoshinobu Hiraishi

Inventor： Tadashi Tokimoto ,  Yoshinobu Hiraishi

IPC: C03B37/018 ,  C01B33/18 ,  C03B8/04 ,  C03B19/14 ,  C03B20/00 ,  C03C3/06 ,  G02B6/00 ,  C01B33/12

CPC classification number: C01B33/183 ,  C03B19/1415 ,  C03B19/1453 ,  C03C3/06 ,  C01P2006/60 ,  C01P2006/80 ,  C03B2201/02 ,  C03B2201/04 ,  C03B2207/32 ,  C03B2207/36 ,  C03C2201/02 ,  C03C2201/20 ,  C03C2203/10 ,  C03C2203/20 ,  C03C2203/40

Abstract: A method of producing high-purity transparent vitreous silica by supplying to a burner a high-purity silane type gas, and an inert gas, hydrogen gas and oxygen gas to effect the flame hydrolysis, comprising growing highly pure transparent vitreous silica at a controlled atmosphere of said flame that may increase the oxygen defect concentration of the vitreous silica, and thereafter heat-treating said formed body.

公开(公告)号：US4009014A

公开(公告)日：1977-02-22

申请号：US610021

申请日：1975-09-03

Applicant: Philip William Black ,  John Irven

Inventor： Philip William Black ,  John Irven

IPC: C03B37/018 ,  C03B37/029 ,  C03C21/00 ,  G02B5/14

CPC classification number: C03B37/029 ,  C03B37/01807 ,  C03B37/01815 ,  C03B37/01853 ,  C03B37/01869 ,  C03C21/00 ,  C03B2201/02 ,  C03B2201/10 ,  C03B2201/28 ,  C03B2201/30 ,  C03B2201/31 ,  C03B2201/32 ,  C03B2201/40 ,  C03B2201/42 ,  C03B2203/28 ,  C03B2203/36 ,  C03B2205/16 ,  C03B2207/87

Abstract: A fiber optic preform is provided by depositing phosphorus pentoxide as a dopant on the bore of a silica tube to form a high refractive index layer and collapsing the tube to form a core of high index phosphorus pentoxide doped silica.

Abstract translation: 通过在二氧化硅管的孔上沉积作为掺杂剂的五氧化二磷以形成高折射率层并使管塌缩以形成高折射率五氧化二磷掺杂二氧化硅的芯来提供光纤预制件。

公开(公告)号：US3899313A

公开(公告)日：1975-08-12

申请号：US37401773

申请日：1973-06-27

Applicant: SIEMENS AG

Inventor： GRABMAIER JOSEF ,  PLAETTNER ROLF

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

CPC classification number: C03B37/01265 ,  C03B37/01277 ,  C03B37/018 ,  C03B2201/02 ,  C03B2201/42

Abstract: A glass fiber having a central core formed of material having a relatively high index of refraction and an outer casing formed of material having a relatively low index of refraction is formed with perfect contact between the core and casing by forming a coating of casing material on the core and permitting the coating to harden. The coating may be applied by immersing the core material in a bath of casing material, by drawing the core material vertically through a bath of the casing material, or by drawing the core material in a horizontal direction under a vertical column of casing material while twisting said core material.

公开(公告)号：US20180057388A1

公开(公告)日：2018-03-01

申请号：US15678680

申请日：2017-08-16

Applicant: Corning Incorporated

Inventor： Venkata Adiseshaiah Bhagavatula ,  Daniel Warren Hawtof ,  Xinghua Li ,  Gary Edward Merz ,  John Stone, III

IPC: C03B19/06 ,  C03B33/08

CPC classification number: C03B19/066 ,  C03B33/082 ,  C03B2201/02 ,  C03C3/06 ,  C03C17/06 ,  C03C2201/02 ,  C03C2201/3488

Abstract: A system and method for sintering a thin, high purity fused silica glass sheet having a thickness of 500 μm or less, includes a step of rastering a beam of a laser across a sheet of high purity fused silica soot; wherein a pattern of the rastering includes tightly spacing target locations on the sheet such that the laser sinters the soot and simultaneously forms tiny notches on a first major surface of the sheet when viewed in cross-section, wherein the tiny notches are crenellated such that at least some of the notches have generally flat bottom surfaces and at least some respective adjoining caps have generally plateau top surfaces offset from the bottom surfaces by steeply-angled sidewalls.

公开(公告)号：US20170341967A1

公开(公告)日：2017-11-30

申请号：US15536426

申请日：2015-12-15

Applicant: Heraeus Quarzglas GmbH & Co. KG

Inventor： Hilmar LAUDAHN ,  Klaus-Uwe BADEKE ,  Martin TROMMER

IPC: C03B19/14 ,  C03B20/00 ,  C03C3/04

CPC classification number: C03B19/1415 ,  B01D53/02 ,  B01D2253/106 ,  B01D2253/304 ,  B01D2253/306 ,  B01J20/103 ,  C03B20/00 ,  C03B2201/02 ,  C03B2207/32 ,  C03B2207/81 ,  C03B2207/85 ,  C03C3/04

Abstract: A method for the production of synthetic quartz glass using a special cleaning device is provided. The method includes (a) evaporating a production material containing a polymerizable polyalkylsiloxane compound while forming a production material vapor, (b) passing the production material vapor resulting from step (a) through a cleaning device to purify the production material vapor, (c) supplying the purified production material vapor resulting from step (b) to a reaction zone in which the purified production material vapor is converted to SiO2 particles through oxidation and/or through hydrolysis, (d) depositing the SiO2 particles resulting from step (c) on a deposition surface, and optionally drying and vitrifying the deposited SiO2 particles resulting from step (d) to form synthetic quartz glass. The cleaning device includes a bulk of porous silica particles which have a BET specific surface area of at least 2 m2/g. A device for carrying out the method is also provided.

公开(公告)号：US20170336558A1

公开(公告)日：2017-11-23

申请号：US15514090

申请日：2015-09-24

Applicant: Fujikura Ltd.

Inventor： Sho Endo ,  Tatsuya Kishi ,  Takayuki Kitamura

IPC: G02B6/02 ,  G02B6/036

CPC classification number: G02B6/02009 ,  C03B2201/02 ,  C03B2201/31 ,  C03B2203/23 ,  C03B2203/26 ,  G02B6/0281 ,  G02B6/03611 ,  G02B6/03627 ,  G02B6/03633 ,  G02B6/0365

Abstract: An optical fiber includes a core and a cladding surrounding an outer periphery of the core and has a refractive index profile in which a relative refractive index difference with respect to a distance r from a center of the core is represented by Δ(r), where a value of A represented by A=−∫00.22MFD1.31(Δ(r)−Δref(r))dr+∫0.22MFD1.310.44MFD1.31(Δ(r)−Δref(r))dr  (Formula 1) is 0.3%·μm or less, where a unit of r is μm, a unit of a relative refractive index difference Δ(r) is %, Δref(r)=−0.064r+0.494, and MFD1.31 is a mode field diameter at a wavelength of 1.31 μm.

公开(公告)号：US09739935B2

公开(公告)日：2017-08-22

申请号：US15083957

申请日：2016-03-29

Applicant: FUJIKURA LTD.

Inventor： Tatsuya Kishi ,  Sho Endo ,  Takayuki Kitamura

IPC: G02B6/028 ,  C03B37/014 ,  G02B6/036 ,  G02B6/02 ,  C03B37/018

CPC classification number: G02B6/0281 ,  C03B37/014 ,  C03B37/018 ,  C03B2201/02 ,  C03B2201/12 ,  C03B2201/20 ,  C03B2203/22 ,  C03B2203/23 ,  C03B2203/26 ,  G02B6/02009 ,  G02B6/02028 ,  G02B6/028 ,  G02B6/03627 ,  G02B6/03633 ,  G02B6/0365

Abstract: An optical fiber includes a core, and a clad surrounding an outer circumference of the core, in which a first relative refractive index difference Δ1a is greater than 0, a second relative refractive index difference Δ1b is greater than 0, the first relative refractive index difference Δ1a is greater than the second relative refractive index difference Δ1b, the first relative refractive index difference Δ1a and the second relative refractive index difference Δ1b satisfy a relationship denoted by the following expression: 0.20≦(Δ1a−Δ1b)/Δ1a≦0.88, and a refractive index profile Δ of the core in an entire region of a section of 0≦r≦r1 as a function Δ(r) of a distance r from a center of the core in the radial direction is denoted by the following expression: Δ(r)=Δ1a−(Δ1a−Δ1b)r/r1.