公开(公告)号：US06748767B2

公开(公告)日：2004-06-15

申请号：US09912129

申请日：2001-07-24

Applicant: Mary Louise Mandich ,  William David Reents, Jr.

Inventor： Mary Louise Mandich ,  William David Reents, Jr.

IPC: C03B37027

CPC classification number: C03B19/12 ,  C03B19/1453 ,  C03B37/01446 ,  C03B37/016 ,  C03B2201/02 ,  C03B2201/12

Abstract: Fiber is drawn from a preform comprising a silica body, e.g., a sol-gel derived overcladding or substrate tube. Prior to sintering, the body is treated with a gaseous mixture containing one or more non-oxygenated sulfur halides, to remove and/or reduce the size of refractory oxide particles, and/or dehydroxylate the body. Removal of metal oxide particles or reduction in their size contributes to drawing of optical fiber exhibiting desirable strength, since such particles act as initiation sites for breakage. Advantageously, the halides include sulfur chlorides, which provide desirable improvements compared to treatment by oxygenated sulfur chlorides such as thionyl chloride (SOCl2).

Abstract translation: 纤维从包含二氧化硅体（例如，溶胶 - 凝胶衍生的外包层或底物管）的预制件中抽出。 在烧结之前，用含有一种或多种非氧化硫化氢的气体混合物处理体，以除去和/或减少难熔氧化物颗粒的尺寸和/或使体内脱氢化。 去除金属氧化物颗粒或其尺寸减小有助于拉伸具有所需强度的光纤，因为这些颗粒作为断裂的起始位置。 有利地，卤化物包括与由氧化硫化物如亚硫酰氯（SOCl 2）处理相比提供期望的改进的硫化氯。

公开(公告)号：US20040005128A1

公开(公告)日：2004-01-08

申请号：US10190134

申请日：2002-07-03

Applicant: Fitel USA Corp.

Inventor： David John DiGiovanni ,  Andrew D. Yablon ,  Man Fei Yan

IPC: G02B006/16

CPC classification number: G02B6/02123 ,  C03B37/027 ,  C03B37/15 ,  C03B2201/02 ,  C03B2201/12 ,  C03B2201/28 ,  C03B2201/31 ,  C03B2203/22 ,  C03B2203/222 ,  C03B2205/40 ,  G02B6/02 ,  G02B6/02071 ,  G02B6/2551 ,  G02B6/2552

Abstract: Systems and methods are described for fabricating a varying-waveguide optical fiber. In one described method, a preform is fabricated having a core and at least one cladding region. The cladding region has a higher viscosity and the core region has a lower viscosity. The relative viscosities of the cladding region and core are chosen such that, when tension is applied to an optical fiber drawn from the preform, the applied tension is primarily borne by the cladding region thereby causing a viscoelastic strain to be frozen into the cladding region, while creating a minimal viscoelastic strain in the core. The method further includes drawing the preform into an optical fiber under an applied tension, such that a viscoelastic strain is frozen into the cladding region the frozen-in viscoelastic strain decreasing the cladding region refractive index. The cladding region refractive index is changed in a section of the optical fiber by heating the section so as to relax the viscoclastic strain frozen into the cladding region in the section of fiber, thereby increasing the cladding region refractive index in the section of fiber.

Abstract translation: 描述了制造变波导光纤的系统和方法。 在一种所描述的方法中，制造具有芯和至少一个包层区的预成型件。 包层区域具有较高的粘度，并且核心区域具有较低的粘度。 选择包层区域和芯体的相对粘度，使得当对从预成型体拉出的光纤施加张力时，施加的张力主要由包层区域承担，从而使粘弹性应变冻结在包层区域中， 同时在核心中产生最小的粘弹性应变。 该方法还包括在施加的张力下将预型件拉伸成光纤，使得粘弹性应变被冻结到包层区域中，使冷冻的粘弹性应变降低包层区折射率。 通过加热该部分使包层区折射率变化，使得在纤维截面中冻结到包层区域的粘弹性应变松弛，从而增加纤维截面中的包层区折射率。

公开(公告)号：US20030145630A1

公开(公告)日：2003-08-07

申请号：US10291813

申请日：2002-11-12

Inventor： Masaaki Hirano ,  Eiji Yanada ,  Masashi Onishi

IPC: C03B037/028

CPC classification number: C03C3/06 ,  C03B37/01211 ,  C03B37/01228 ,  C03B37/01248 ,  C03B37/0126 ,  C03B2201/02 ,  C03B2201/10 ,  C03B2201/12 ,  C03B2201/20 ,  C03B2201/28 ,  C03B2201/31 ,  C03B2203/23 ,  C03B2203/36 ,  G02B6/02285 ,  G02B6/03627

Abstract: An optical fiber preform having a low core noncircularity and eccentricity for producing an optical fiber having an improved polarization mode dispersion, a method for producing the preform, and an optical fiber produced from the preform. The optical fiber preform is produced by the following steps. Diameter-reduced portions 11a and 11b are formed in the vicinity of the ends of the glass pipe 11. A glass rod 12 is inserted into the glass pipe 11. The glass rod 12 is fixed to the glass pipe 11 at the diameter-reduced portion 11a. The glass pipe 11 and the glass rod 12 are heat-unified from the diameter-reduced portion 11b forward to the diameter-reduced portion 11a. The optical fiber preform has a core noncircularity of at most 1.5%. The optical fiber has a polarization mode dispersion of at most 0.15 ps/km1/2 at a wavelength of 1,550 nm.

Abstract translation: 一种具有低芯非圆度和偏心率的光纤预制件，用于制造具有改进的偏振模色散的光纤，由预成型件制造的预制棒的制造方法和光纤。 光纤预制棒通过以下步骤制造。 直径减小部分11a和11b形成在玻璃管11的端部附近。玻璃棒12插入到玻璃管11中。玻璃棒12在直径减小部分处固定到玻璃管11上 11a。 玻璃管11和玻璃棒12从直径减小部分11b向前加热到直径减小部分11a。 光纤预制棒的芯非圆度至多为1.5％。 该光纤在波长1550nm处具有至多0.15ps / km1 / 2的偏振模色散。

公开(公告)号：US06574991B1

公开(公告)日：2003-06-10

申请号：US09658200

申请日：2000-09-08

Applicant: Robert S. Pavlik, Jr. ,  Lawrence H. Kotacska

Inventor： Robert S. Pavlik, Jr. ,  Lawrence H. Kotacska

IPC: C03B514

CPC classification number: C03B19/1407 ,  C03B2201/02 ,  C03B2201/03 ,  C03B2201/07 ,  C03B2201/42 ,  C03B2207/32 ,  C03B2207/50 ,  C04B35/10 ,  F27B9/26 ,  F27B17/00 ,  F27D1/0006 ,  F27D1/0043 ,  F27D3/0033

Abstract: An article of relatively pure silica, and a furnace and method of producing the article. The article is produced by collecting molten silica particles in a refractory furnace in which at least a portion of the refractory has been exposed to a halogen-containing gas to react with contaminating metal ions in the refractory.

Abstract translation: 相对纯二氧化硅的制品，以及制造该制品的炉子和方法。 该制品通过在难熔炉中收集熔融二氧化硅颗粒而制备，其中耐火材料的至少一部分暴露于含卤素的气体中以与耐火材料中的污染金属离子反应。

公开(公告)号：US06546177B1

公开(公告)日：2003-04-08

申请号：US09830027

申请日：2001-04-20

Applicant: Shoichiro Matsuo ,  Shoji Tanigawa ,  Tomio Abiru

Inventor： Shoichiro Matsuo ,  Shoji Tanigawa ,  Tomio Abiru

IPC: G02B602

CPC classification number: G02B6/03666 ,  C03B37/01413 ,  C03B37/01807 ,  C03B2201/02 ,  C03B2201/12 ,  C03B2201/31 ,  C03B2203/22 ,  C03B2203/36 ,  G02B6/02019 ,  G02B6/02238 ,  G02B6/03611 ,  G02B6/03633

Abstract: In the present invention, by forming a dispersion shifted optical fiber that has a refractive index profile comprising: a central core portion 1; a step core portion 2 provided at an outer periphery of the central core portion 1 and having a refractive index lower than that of the central core portion 1; and cladding 7 provided at an outer periphery of the step core portion 2 and having a refractive index lower than that of the step core portion 2, and which dispersion shifted optical fiber has, in a used wavelength band that is selected from between 1490 and 1625 nm, chromatic dispersion values of 7 to 15 ps/km/nm, an Aeff of 60 to 150 &mgr;m2, a dispersion slope of 0.09 ps/km/nm2 or less, a bending loss of 100 dB/m or less, and a cutoff wavelength that provides essentially single mode transmission, it is possible to reduce the cost of the system and to achieve n improvement in the transmission characteristics.

Abstract translation: 在本发明中，通过形成具有折射率分布的色散位移光纤，包括：中心芯部分1; 设置在中心芯部1的外周并具有比中央芯部1的折射率低的折射率的台阶芯部2; 以及设置在台阶芯部2的外周并且折射率低于台阶芯部2的折射率的包层7，并且该色散位移光纤具有在从1490到1625之间的使用波长带中 nm，色散值为7〜15ps / km / nm，Aeff为60〜150mum2，色散斜率为0.09ps / km / nm2以下，弯曲损耗为100dB / m以下，截止频率为 提供基本单模传输的波长，可以降低系统的成本并实现传输特性的提高。

公开(公告)号：US5938853A

公开(公告)日：1999-08-17

申请号：US780770

申请日：1997-01-08

Applicant: Richard R. Williams

Inventor： Richard R. Williams

IPC: G02B6/00 ,  B01D1/22 ,  B01D3/06 ,  C03B8/04 ,  C03B19/14 ,  C03B37/014 ,  C03B37/018 ,  C23C16/40 ,  C23C16/448 ,  C23C16/44

CPC classification number: C03B19/1415 ,  B01D1/22 ,  B01D3/06 ,  C03B37/01413 ,  C23C16/402 ,  C23C16/4486 ,  C03B2201/02 ,  C03B2207/20 ,  C03B2207/32 ,  C03B2207/36 ,  C03B2207/85 ,  Y10S261/65

Abstract: A vaporizer for halide-free, silicon-containing liquid reactants used in producing preforms is provided. The vaporizer includes a heated, vertically-oriented expansion chamber (20) and a vertical hollow shaft (42) which extends into the chamber and has a plurality of orifices (45) at its upper end (44). Preheated reactant is supplied to the vertical shaft (42) at an elevated pressure and is sprayed onto the chamber's heated wall (22) by the orifices (45). A portion of the liquid reactant vaporizes upon entering the internal volume (24) of the chamber (20) due to the pressure drop between the inside of the shaft and the inside of the chamber. The remainder of the liquid reactant vaporizes by being heated through contact with the chamber's wall (22). Higher molecular weight species present in the raw material or generated by the vaporization process are collected in the bottom portion of the chamber where they can be periodically removed.

Abstract translation: 提供了一种用于制造预成型件的无卤素，含硅液体反应物的蒸发器。 蒸发器包括一个加热的垂直取向的膨胀室（20）和一个垂直的空心轴（42），该空心轴（42）在其上端（44）处延伸到腔室中并具有多个孔口（45）。 预热的反应物以升高的压力供应到垂直轴（42），并通过孔（45）喷射到室的加热壁（22）上。 液体反应物的一部分在进入室（20）的内部体积（24）时由于轴的内部和室内部之间的压降而蒸发。 液体反应物的其余部分通过与室的壁（22）接触而加热而蒸发。 存在于原料中或通过蒸发过程产生的较高分子量物质被收集在室的底部，其中它们可以周期性地除去。

公开(公告)号：US5802235A

公开(公告)日：1998-09-01

申请号：US871811

申请日：1997-06-09

Applicant: Youichi Akasaka

Inventor： Youichi Akasaka

IPC: C03B37/012 ,  C03B37/014 ,  G02B6/16

CPC classification number: G02B6/02285 ,  C03B37/01228 ,  C03B37/01466 ,  G02B6/03627 ,  G02B6/03633 ,  C03B2201/02 ,  C03B2201/12 ,  C03B2201/31 ,  C03B2203/22 ,  C03B2203/29 ,  C03B2203/36

Abstract: A dispersion compensating fiber is provided which is capable of reducing the birefringence of the core caused in spinning to suppress an increase in polarization mode dispersion due to the birefringence of the core even though the surface of the core rod is ground to shape the profile of the core during manufacturing. A silica glass cladding 2 doped with fluorine is disposed to surround a silica glass core 1 doped with germanium. The variation in circumferential concentration of germanium at the periphery of the core 1 is set at 0.05% or smaller in relative refractive index difference value.

Abstract translation: 提供了一种弥散补偿光纤，其能够减少纺丝时引起的芯的双折射，以抑制由于芯的双折射引起的偏振模色散的增加，即使芯棒的表面被研磨以形成 核心在制造过程中。 掺杂氟的石英玻璃包层2设置成围绕掺杂有锗的石英玻璃核心1。 芯1周边的锗的周向浓度的变化相对折射率差值为0.05％以下。

公开(公告)号：US5778129A

公开(公告)日：1998-07-07

申请号：US727776

申请日：1996-10-08

Applicant: Norifumi Shukunami ,  Shinya Inagaki

Inventor： Norifumi Shukunami ,  Shinya Inagaki

IPC: G02B6/00 ,  C03B37/018 ,  G02B6/036 ,  G02B6/255 ,  H01S3/067 ,  G02B6/22

CPC classification number: G02B6/03688 ,  C03B37/01807 ,  C03B37/01838 ,  G02B6/03611 ,  G02B6/03633 ,  G02B6/03644 ,  G02B6/2551 ,  H01S3/06708 ,  C03B2201/02 ,  C03B2201/31 ,  C03B2201/36 ,  C03B2203/22 ,  G02B6/03694 ,  H01S3/06729

Abstract: An optical fiber having a core for propagating light, where the core includes first, second and third regions. The first, second and third regions are concentrically arranged with the second region around the first region and the third region around the second region. The third region includes a dopant for increasing the refractive index of the third region. The first region includes a first dopant for providing an amplification band and a second dopant for expanding the amplification band. The second region has an impurity concentration which is lower than the concentration of the dopant in the third region and is lower than the concentrations of the first and second dopants in the first region. Upon production of the fiber, the second region acts as a barrier to prevent diffusion of dopants. As a result, the amplification band can be effectively expanded. Various other arrangements of core and clad regions and dopants are provided. An optical amplifier using the various types of fibers is disclosed, as is a fiber having a structure which reduces loss when spliced to another fiber, and a method for splicing the fibers together.

Abstract translation: 一种具有用于传播光的芯的光纤，其中所述芯包括第一，第二和第三区域。 第一，第二和第三区域同心地布置有围绕第一区域的第二区域和围绕第二区域的第三区域。 第三区域包括用于增加第三区域的折射率的掺杂剂。 第一区域包括用于提供放大频带的第一掺杂剂和用于扩展放大频带的第二掺杂剂。 第二区域的杂质浓度低于第三区域中的掺杂剂的浓度，并且低于第一区域中的第一和第二掺杂剂的浓度。 在制造纤维时，第二区域用作防止掺杂剂扩散的屏障。 结果，能够有效地扩大放大频带。 提供了核心和包覆区域和掺杂剂的各种其它布置。 公开了使用各种类型的光纤的光放大器，以及具有在与另一光纤接合时减少损耗的结构的光纤，以及将光纤拼接在一起的方法。

公开(公告)号：US5523266A

公开(公告)日：1996-06-04

申请号：US286538

申请日：1994-08-05

Applicant: Hiroyuki Nishimura ,  Akira Fujinoki ,  Toshikatsu Matsuya ,  Kyoichi Inaki ,  Toshiyuki Kato ,  Atsushi Shimada

Inventor： Hiroyuki Nishimura ,  Akira Fujinoki ,  Toshikatsu Matsuya ,  Kyoichi Inaki ,  Toshiyuki Kato ,  Atsushi Shimada

IPC: C03B8/04 ,  C03B19/14 ,  C03B37/014 ,  C03C3/06 ,  G03F7/20 ,  C03B20/00

CPC classification number: C03B37/014 ,  C03B19/1415 ,  C03B19/1453 ,  C03C3/06 ,  G03F7/70958 ,  C03B2201/02 ,  C03B2201/07 ,  C03B2201/075 ,  C03B2201/20 ,  C03B2201/21 ,  C03B2201/23 ,  C03B2203/22 ,  C03B2207/32 ,  C03C2201/11 ,  C03C2201/21 ,  C03C2201/23 ,  C03C2203/40 ,  Y02P40/57 ,  Y10S501/90 ,  Y10S65/08

Abstract: A synthetic quartz glass optical member for an ultraviolet laser, where the quartz glass has a hydroxyl content of 10-100 ppm, a chlorine content of 200 ppm or less, a hydrogen content of 1.times.10.sup.16 molecules/cm.sup.3 or less, a homogeneity of refractive index of 5.times.10.sup.-6 or less in terms of .DELTA.n, and a birefringence of 5 nm/cm or less.

Abstract translation: 一种用于紫外线激光的合成石英玻璃光学构件，其中石英玻璃的羟基含量为10-100ppm，氯含量为200ppm以下，氢含量为1×1016分/ cm 3以下，折射率均匀性 在DELTA n方面为5×10 -6以下，双折射为5nm / cm以下。

公开(公告)号：US5364433A

公开(公告)日：1994-11-15

申请号：US977397

申请日：1993-05-15

Applicant: Hiroyuki Nishimura ,  Akira Fujinoki ,  Toshikatsu Matsuya ,  Kyoichi Inaki ,  Toshiyuki Kato ,  Atsushi Shimada

Inventor： Hiroyuki Nishimura ,  Akira Fujinoki ,  Toshikatsu Matsuya ,  Kyoichi Inaki ,  Toshiyuki Kato ,  Atsushi Shimada

IPC: C03B8/04 ,  C03B19/14 ,  C03B37/014 ,  C03C3/06 ,  G03F7/20

CPC classification number: C03B37/014 ,  C03B19/1415 ,  C03B19/1453 ,  C03C3/06 ,  G03F7/70958 ,  C03B2201/02 ,  C03B2201/07 ,  C03B2201/075 ,  C03B2201/20 ,  C03B2201/21 ,  C03B2201/23 ,  C03B2203/22 ,  C03B2207/32 ,  C03C2201/11 ,  C03C2201/21 ,  C03C2201/23 ,  C03C2203/40 ,  Y02P40/57 ,  Y10S501/90 ,  Y10S65/08

Abstract: A synthetic quartz glass optical member for an ultraviolet laser, suitably applicable as a stepper lens of a lithographer using an excimer laser beam and other optical members, wherein the quartz glass has a hydroxyl content of 10 to 100 ppm, a chlorine content of 200 ppm or less, a hydrogen content of 1.times.10.sup.16 molecules/cm.sup.3 or less, a homogeneity of refractive index of 5.times.10.sup.-6 or less in terms of .DELTA.n, and a birefringence of 5 nm/cm or less. The optical member can be produced by subjecting a volatile silicon compound to flame hydrolysis with oxyhydrogen flame, depositing the formed particulate silica on a heat-resistant support to prepare a porous silica matrix, heating the matrix in a vacuum as high as 1.times.10.sup.-2 Torr or above to a temperature of 1,400 .degree. C. or above to effect dehydration and degassing, homogenizing the resultant transparent quartz glass into highly homogeneous quartz glass free from striae in at last one direction, molding the highly homogeneous quartz glass, and annealing the molded glass.

Abstract translation: PCT No.PCT / JP92 / 00821 Sec。 371日期1993年3月15日 102（e）1993年3月15日PCT提交1992年6月29日PCT公布。 公开号WO93 / 00307 日期：1993年1月7日。一种用于紫外线激光的合成石英玻璃光学元件，适用于使用准分子激光束和其它光学部件的平版印刷机的步进透镜，其中石英玻璃的羟基含量为10〜100ppm ，氯含量为200ppm以下，氢含量为1×1016分/ cm 3以下，折射率均匀性为DELTA n为5×10 -6以下，双折射为5nm / cm以下。 光学构件可以通过使挥发性硅化合物用氢氧焰火焰水解，将形成的颗粒二氧化硅沉积在耐热载体上以制备多孔二氧化硅基质来制造，在高达1×10 -2乇的真空中加热基质 以上至1400℃以上的温度进行脱水脱气，将得到的透明石英玻璃均匀化成最后一个方向不含条纹的高度均匀的石英玻璃，成型高度均匀的石英玻璃，退火成型玻璃 。