公开(公告)号：US5491581A

公开(公告)日：1996-02-13

申请号：US154957

申请日：1993-11-19

Applicant: Giacomo S. Roba

Inventor： Giacomo S. Roba

IPC: G02B6/00 ,  C03B37/018 ,  C03C13/04 ,  G02B6/036 ,  G02F1/35 ,  H01S3/067 ,  H01S3/08 ,  H01S3/094 ,  H01S3/16 ,  H01S3/06

CPC classification number: G02B6/0365 ,  C03B37/01807 ,  C03B37/01838 ,  C03C13/046 ,  G02B6/03644 ,  H01S3/06708 ,  C03B2201/10 ,  C03B2201/12 ,  C03B2201/14 ,  C03B2201/28 ,  C03B2201/31 ,  C03B2201/34 ,  C03B2201/36 ,  C03B2203/22 ,  H01S3/06729 ,  H01S3/094011 ,  H01S3/1691

Abstract: An optical amplifier which includes an optical fiber having an erbium doped core surrounded by cladding, a pump for pumping the fiber with pump light at a pump wavelength coupled to the fiber, input means for inputting a signal to be amplified to the amplifier and output means for outputting an amplified signal from the amplifier. The fiber has a NA higher than 0.2. The difference in the coefficient of thermal expansion of the core adjacent the core/cladding interface and the coefficient of thermal expansion of the cladding at at least one radius less than 2 .mu.m from said interface is lower than a predetermined value, corresponding to a ratio of erbium loss to background loss, at said pump wavelength, and greater than a minimum ratio of about 20 when erbium loss is 0.15 dB/m and about 120 when erbium loss is 3.5 dB/m.

Abstract translation: 一种光放大器，包括具有被包层包围的掺铒芯的光纤，用于以耦合到光纤的泵浦波长的泵浦光泵浦光纤的泵，用于将放大的信号输入到放大器和输出装置的输入装置 用于从放大器输出放大的信号。 纤维的NA高于0.2。 在距离所述界面的小于2μm的至少一个半径处，与芯/包覆界面相邻的芯部的热膨胀系数与包层的热膨胀系数的差异小于预定值， 在铒损耗为0.15dB / m时，铒损耗与背景损耗相比，在铒损耗为3.5dB / m时，大于20左右的最小比。

公开(公告)号：US5203898A

公开(公告)日：1993-04-20

申请号：US809697

申请日：1991-12-16

Applicant: Norman W. Carpenter ,  Alan J. Morrow ,  Donald R. Young, Jr.

Inventor： Norman W. Carpenter ,  Alan J. Morrow ,  Donald R. Young, Jr.

IPC: G02B6/26 ,  C03B37/014 ,  C03B37/028 ,  G02B6/28

CPC classification number: G02B6/2856 ,  C03B37/01446 ,  C03B37/028 ,  C03B2201/14 ,  C03B2203/22 ,  Y10S65/16

Abstract: Disclosed is a method of forming a glass tube doped with boron and fluorine. A B.sub.2 O.sub.3 -doped tubular porous preform is heated, and a fluorine-containing gas is flowed into its aperture. The temperature is sufficiently high to cause the fluorine-containing gas to decompose and form fluorine which dopes the preform. Also flowed into the aperture is a sufficient amount of BF.sub.3 to prevent fluorine from reacting with the B.sub.2 O.sub.3 in the porous preform and forming a B.sub.2 O.sub.3 -depleted region near the aperture surface. The particles are then fused to form a fluorine-containing dense glass tube.

公开(公告)号：US5048923A

公开(公告)日：1991-09-17

申请号：US502204

申请日：1990-03-30

Applicant: Takashi Tsumanuma ,  Toshiyuki Tanaka ,  Naoki Shamoto ,  Katsuyuki Seto ,  Kazuo Sanada ,  Kouji Tanaka

Inventor： Takashi Tsumanuma ,  Toshiyuki Tanaka ,  Naoki Shamoto ,  Katsuyuki Seto ,  Kazuo Sanada ,  Kouji Tanaka

IPC: C03B37/012 ,  C03B37/028 ,  C03C13/04 ,  G02B6/06

CPC classification number: C03B37/01214 ,  C03B37/028 ,  C03C13/045 ,  G02B6/06 ,  C03B2201/08 ,  C03B2201/14 ,  C03B2203/22

Abstract: An image fiber preform for use in an image fiber according to the present invention includes a plurality of optical fiber strands, each optical fiber strand including a silica glass core which contains a dopant for increasing a refractive index of the core and a silica glass cladding surrounding the silica glass core, the silica glass cladding containing a fluorine dopant for decreasing a refractive index of the cladding, the cladding having an outer peripheral surface, and a quartz tube in which the optical fibers are closely arranged, wherein the cladding has a concentration of the fluorine dopant which decreases radially outward toward the outer peripheral surface of the cladding. in the present invention, an image fiber prepared from the image fiber preform and fabrication processes for the image fiber preform and the image fiber are provided.

公开(公告)号：US5033815A

公开(公告)日：1991-07-23

申请号：US523680

申请日：1990-04-27

Applicant: Takao Edahiro ,  Shiro Kurosaki ,  Minoru Watanabe

Inventor： Takao Edahiro ,  Shiro Kurosaki ,  Minoru Watanabe

IPC: C03B37/014 ,  C03B37/018 ,  C03C13/04 ,  G02B6/44 ,  G02B6/00

CPC classification number: G02B6/4492 ,  C03B37/014 ,  C03B37/018 ,  C03C13/045 ,  C03B2201/02 ,  C03B2201/08 ,  C03B2201/12 ,  C03B2201/14 ,  C03B2201/28 ,  C03B2201/30 ,  C03B2201/31 ,  C03B2201/32 ,  C03B2201/40 ,  C03B2201/42 ,  C03B2203/22

Abstract: An optical transmission fiber comprising (1) a core of high refractive index composed of SiO.sub.2 -based glass containing at least one of GeO.sub.2, As.sub.2 O.sub.3, Sb.sub.2 O.sub.5, SnO.sub.2, TiO.sub.2, PbO and Bi.sub.2 O.sub.3, (2) a clad of low refractive index composed of SiO.sub.2 -based glass containing at least one of F, F/B.sub.2 O.sub.3 and F/P.sub.2 O.sub.5, and (3) an outermost jacket layer composed of SiO.sub.2 and/or SiO.sub.2 -based glass containing at least one of Al.sub.2 O.sub.3, TiO.sub.2, ZrO.sub.2 and HfO.sub.2.

公开(公告)号：WO2019089508A1

公开(公告)日：2019-05-09

申请号：PCT/US2018/058100

申请日：2018-10-30

Applicant: CORNING INCORPORATED

Inventor： BOOKBINDER, Dana Craig ,  DAWES, Steven Bruce ,  FIACCO, Richard Michael ,  HARPER, Brian Lee ,  LI, Ming-Jun ,  TANDON, Pushkar

IPC: C03B37/014

CPC classification number: C03B37/014 ,  C03B19/1461 ,  C03B37/01446 ,  C03B37/01453 ,  C03B2201/08 ,  C03B2201/10 ,  C03B2201/12 ,  C03B2201/14 ,  C03B2201/20 ,  C03C3/06 ,  C03C13/045 ,  G02B6/02

Abstract: Preparation of halogen-doped silica is described. The preparation includes doping silica with high halogen concentration and sintering halogen-doped silica to a closed-pore state. The sintering includes a high pressure sintering treatment and a low pressure sintering treatment. The high pressure sintering treatment is conducted in the presence of a high partial pressure of a gas-phase halogen doping precursor and densifies a silica soot body to a partially consolidated state. The low pressure sintering treatment is conducted in the presence of a low partial pressure of gas-phase halogen doping precursor and transforms a partially consolidated silica body to a closed-pore state. The product halogen-doped silica glass exhibits little foaming when heated to form fibers in a draw process or core canes in a redraw process.

公开(公告)号：WO2006135433A2

公开(公告)日：2006-12-21

申请号：PCT/US2005/037722

申请日：2005-10-19

Applicant: CORNING INCORPORATED ,  BERKEY, George E ,  CHEN, Xin ,  LI, Ming-jun ,  NOLAN, Daniel A ,  WALTON, Donnell T ,  WANG, Ji ,  ZENTENO, Luis A ,  KOH, Joohyun

Inventor： BERKEY, George E ,  CHEN, Xin ,  LI, Ming-jun ,  NOLAN, Daniel A ,  WALTON, Donnell T ,  WANG, Ji ,  ZENTENO, Luis A ,  KOH, Joohyun

IPC: G02B6/032

CPC classification number: H01S3/06716 ,  C03B37/01234 ,  C03B37/0124 ,  C03B37/01413 ,  C03B37/01446 ,  C03B2201/12 ,  C03B2201/14 ,  C03B2201/28 ,  C03B2201/31 ,  C03B2201/36 ,  C03B2203/12 ,  C03B2203/14 ,  C03B2203/23 ,  C03B2205/10 ,  C03B2207/90 ,  G02B6/023 ,  G02B6/02338 ,  G02B6/02366 ,  G02B6/024 ,  G02B6/03611 ,  G02B6/0365 ,  G02B6/03666 ,  G02B2006/1208 ,  H01S3/06729 ,  H01S3/1618 ,  H01S3/1695

Abstract: An optical fiber including: (i) a silica based, rare earth doped core having a first index of refraction n 1 ; (ii) a silica based inner cladding surrounding the core and having a second index of refraction n 2 , such that n 1 > n 2 , said inner cladding having a plurality of air holes extending longitudinally through the length of said optical fiber; (iii) a silica based outer cladding surrounding said inner cladding and having a third index of refraction n 3 , such that n 2 > n 3 ; wherein said optical fiber supports a single polarization mode within the operating wavelength range.

Abstract translation: 一种光纤，包括：（i）具有第一折射率n 1的二氧化硅基稀土掺杂的芯; （ii）围绕所述芯并且具有第二折射率n 2 2的基于二氧化硅的内包层，使得n 1，N 2， 所述内包层具有沿着所述光纤的长度纵向延伸的多个气孔; （iii）围绕所述内包层并具有第三折射率n 3 3的基于二氧化硅的外包层，使得n 2 N 3 N 3 ; 其中所述光纤在工作波长范围内支持单一偏振模式。

公开(公告)号：WO2005109055A3

公开(公告)日：2006-02-16

申请号：PCT/US2005016045

申请日：2005-05-06

Applicant: LUNA ENERGY LLC

Inventor： HOMA DANIEL SCOTT

IPC: C03B37/018 ,  G02B6/00 ,  G02B6/02 ,  A63B53/04

CPC classification number: C03C13/04 ,  C03B37/01807 ,  C03B2201/02 ,  C03B2201/12 ,  C03B2201/14 ,  C03B2201/28 ,  C03B2203/24 ,  G02B6/02

Abstract: An optical fiber suitable to support single mode optical transmission at longer wavelengths (e.g., 1550 nm) is formed to comprise a pure silica core region and a "down doped" cladding layer. The core region is defined as having a diameter d and the cladding layer is defined has having an outer diameter D. In accordance with the present invention, single mode propagation wí11 be supported when D/d > 8.5, and is preferably in the range of 9 - l 0.

Abstract translation: 形成适合于支持较长波长（例如1550nm）的单模光传输的光纤，以包括纯二氧化硅芯区域和“下掺杂”包覆层。 芯区域被定义为具有直径d，并且包层的外径为D。根据本发明，当D / d> 8.5时，单模传播w 111支持，优选在 9 - l 0。

公开(公告)号：WO2016094494A2

公开(公告)日：2016-06-16

申请号：PCT/US2015/064662

申请日：2015-12-09

Applicant: CORNING INCORPORATED

Inventor： ANNAMALAI, Sezhian ,  DURAN, Carlos Alberto ,  HRDINA, Kenneth Edward

IPC: C03C3/06

CPC classification number: C03C3/06 ,  C03B19/1453 ,  C03B19/1461 ,  C03B25/02 ,  C03B2201/07 ,  C03B2201/075 ,  C03B2201/12 ,  C03B2201/14 ,  C03B2201/23 ,  C03B2201/32 ,  C03B2201/40 ,  C03B2201/42 ,  C03B2201/50 ,  C03B2201/54 ,  C03C3/112 ,  C03C4/00 ,  C03C2201/12 ,  C03C2201/14 ,  C03C2201/32 ,  C03C2201/40 ,  C03C2201/42 ,  C03C2201/50 ,  C03C2201/54 ,  C03C2203/52

Abstract: A doped silica-titania glass article is provided that includes a glass article having a glass composition comprising (i) a silica-titania base glass, (ii) a fluorine dopant, and (iii) a second dopant. The fluorine dopant has a concentration of fluorine of up to 5 wt. % and the second dopant comprises one or more oxides selected from the group consisting of Al, Nb, Ta, B, Na, K, Mg, Ca and Li oxides at a total oxide concentration from 50 ppm to 6 wt.%. Further, the glass article has an expansivity slope of less than 0.5 ppb/K 2 at 20 ⃘ C. The second dopant can be optional. The composition of the glass article may also contain an OH concentration of less than 100 ppm.

Abstract translation: 提供一种掺杂二氧化硅 - 二氧化钛玻璃制品，其包括具有玻璃组成的玻璃制品，所述玻璃制品包含（i）二氧化硅 - 二氧化钛基玻璃，（ii）氟掺杂剂，和（iii）第二 掺杂剂。 氟掺杂剂具有高达5wt。％的氟浓度。 ％，第二掺杂剂包含一种或多种选自Al，Nb，Ta，B，Na，K，Mg，Ca和Li氧化物的氧化物，总氧化物浓度为50ppm至6wt％。 此外，该玻璃制品在20℃时的膨胀率斜率小于0.5ppb / K 2。 第二掺杂剂可以是可选的。 玻璃制品的组成也可以含有小于100ppm的OH浓度。

公开(公告)号：WO2006135433A3

公开(公告)日：2007-05-24

申请号：PCT/US2005037722

申请日：2005-10-19

Applicant: CORNING INC ,  BERKEY GEORGE E ,  CHEN XIN ,  LI MING-JUN ,  NOLAN DANIEL A ,  WALTON DONNELL T ,  WANG JI ,  ZENTENO LUIS A ,  KOH JOOHYUN

Inventor： BERKEY GEORGE E ,  CHEN XIN ,  LI MING-JUN ,  NOLAN DANIEL A ,  WALTON DONNELL T ,  WANG JI ,  ZENTENO LUIS A ,  KOH JOOHYUN

IPC: G02B6/02 ,  C03B37/023

CPC classification number: H01S3/06716 ,  C03B37/01234 ,  C03B37/0124 ,  C03B37/01413 ,  C03B37/01446 ,  C03B2201/12 ,  C03B2201/14 ,  C03B2201/28 ,  C03B2201/31 ,  C03B2201/36 ,  C03B2203/12 ,  C03B2203/14 ,  C03B2203/23 ,  C03B2205/10 ,  C03B2207/90 ,  G02B6/023 ,  G02B6/02338 ,  G02B6/02366 ,  G02B6/024 ,  G02B6/03611 ,  G02B6/0365 ,  G02B6/03666 ,  G02B2006/1208 ,  H01S3/06729 ,  H01S3/1618 ,  H01S3/1695

Abstract: An optical fiber including: (i) a silica based, rare earth doped core (12) having a first index of refraction n 1 ; (ii) a silica based inner cladding (14) surrounding the core and having a second index of refraction n 2 , such that n 1 >n 2 , the inner cladding having a plurality of air holes (24, 26) extending longitudinally through the length of the optical fiber; (iii) a silica based outer cladding (16) surrounding the inner cladding and having a third index of refraction n 3 , such that n 2 >n 3 ; wherein the optical fiber supports a single polarization mode within the operating wavelength range.

Abstract translation: 一种光纤，包括：（i）具有第一折射率n 1的二氧化硅基稀土掺杂核心（12）; （ii）围绕所述芯并具有第二折射率n 2 2的基于二氧化硅的内包层（14），使得n 1/2 2 ; 其中所述光纤在工作波长范围内支持单一偏振模式。

公开(公告)号：WO2005109055A2

公开(公告)日：2005-11-17

申请号：PCT/US2005/016045

申请日：2005-05-06

Applicant: LUNA ENERGY, LLC

Inventor： HOMA, Daniel, Scott

IPC: G02B6/02

CPC classification number: C03C13/04 ,  C03B37/01807 ,  C03B2201/02 ,  C03B2201/12 ,  C03B2201/14 ,  C03B2201/28 ,  C03B2203/24 ,  G02B6/02

Abstract: An optical fiber suitable to support single mode optical transmission at longer wavelengths (e.g., 1550 nm) is formed to comprise a pure silica core region and a "down doped" cladding layer. The core region is defined as having a diameter d and the cladding layer is defined has having an outer diameter D. In accordance with the present invention, single mode propagation wí11 be supported when D/d > 8.5, and is preferably in the range of 9 - l 0.

Abstract translation: 形成适合于支持较长波长（例如1550nm）的单模光传输的光纤，以包括纯二氧化硅芯区域和“下掺杂”包覆层。 芯区域被定义为具有直径d，并且包层的外径为D。根据本发明，当D / d> 8.5时，单模传播w 111支持，优选在 9 - l 0。