公开(公告)号：US5123940A

公开(公告)日：1992-06-23

申请号：US684624

申请日：1991-04-12

Applicant: David J. DiGiovanni ,  John B. MacChesney

Inventor： David J. DiGiovanni ,  John B. MacChesney

IPC: C03B37/014 ,  C03B37/016 ,  C03B37/018 ,  C03C1/00 ,  C03C13/04 ,  G02B6/00

CPC classification number: C03B37/01838 ,  C03C1/008 ,  C03B2201/06 ,  C03B2201/34 ,  C03B2201/36 ,  C03B2201/42 ,  Y02P40/57 ,  Y10S65/901

Abstract: The method includes collapsing a silica-based glass tube to make a preform and drawing fiber from the preform. Prior to collapsing the tube, one or more glass layers are formed on the inner surface of the tube by dip-coating the surface with a sol comprising a metal alkoxide dissolved in an alcoholic or aqueous solvent, polymerizing the sol to form a gel, and drying and sintering the gel. A substantial portion the dopant, present within the sintered gel, diffuses into at least one adjoining glass region. A wide selection of dopant materials, in the form of salts or alkoxides, are readily incorporated by dissolving them in the solvent.

公开(公告)号：US5058976A

公开(公告)日：1991-10-22

申请号：US562770

申请日：1990-08-03

Applicant: David J. DiGiovanni ,  Kenneth L. Walker

Inventor： David J. DiGiovanni ,  Kenneth L. Walker

IPC: C03B37/018 ,  G02B6/00 ,  G02B6/02 ,  G02F1/35 ,  H01S3/06 ,  H01S3/067 ,  H01S3/07 ,  H01S3/094 ,  H01S3/16 ,  H01S3/17 ,  H04B10/12 ,  H04B10/13 ,  H04B10/135 ,  H04B10/14 ,  H04B10/17

CPC classification number: H04B10/2935 ,  C03B37/01838 ,  H01S3/06708 ,  H04B10/2912 ,  C03B2201/36 ,  H01S3/0672 ,  H01S3/06729 ,  H01S3/1693

Abstract: The inventive optical fiber communication system comprises Si-based amplifier fiber whose core comprises Ge, Al, and Er. The amplifier fiber has an effective index difference (.DELTA.n) greater than 0.03, an effective core diameter a less than 3.5 .mu.m, a maximum Al concentration in the core of at least 6 mole %, a mode field diameter at the pump wavelength that is less than 5 .mu.m, a V-number at the pump wavelength in the range 1.4-2.0, a cut-off wavelength less than 1.4 .mu.m, and an Er distribution whose effective diameter is less than that of the Ge distribution. The fiber has advantageous properties including low amplification threshold and noise. Disclosed is also a method of making optical fiber that can be used to produce fiber having characteristics (e.g., .DELTA.n>0.03, high Al concentration) not generally obtainable with prior art methods. In a particular embodiment the method comprises a partial collapse of a tubular preform prior to completion of core material deposition, completion of core material deposition, and final collapse.

公开(公告)号：US4666247A

公开(公告)日：1987-05-19

申请号：US699669

申请日：1985-02-08

Applicant: John B. MacChesney ,  Jay R. Simpson

Inventor： John B. MacChesney ,  Jay R. Simpson

IPC: G02B6/00 ,  C03B37/018 ,  C03C13/04 ,  G02B6/16

CPC classification number: C03B37/01807 ,  C03B37/01884 ,  C03C13/045 ,  C03C13/046 ,  C03B2201/32 ,  C03B2201/36 ,  C03B2201/50 ,  C03B2201/54

Abstract: Silica-based optical fiber comprising at least a core and a cladding surrounding the core, both core and cladding material produced by a vapor phase deposition process. The core and/or the cladding comprise at least two substituents, one chosen from Li, Na, K, Rb, Cs, Be, Mg, Ca, Sr, Ba, and the 4f-type rare earths (the "modifiers"), and the other chosen from B, Al, Ga, In, P, As, and Sb (the "homogenizers"). The maximum concentration of the substituents in the fiber is such that 3

Abstract translation: 基于二氧化硅的光纤至少包括芯和围绕芯的包层，通过气相沉积工艺产生的芯和包层材料。 芯和/或包层包含至少两个选自Li，Na，K，Rb，Cs，Be，Mg，Ca，Sr，Ba和4f型稀土（“改性剂”）的取代基， 另一个选自B，Al，Ga，In，P，As和Sb（“均化器”）。 纤维中取代基的最大浓度使得3 <（n1M + n2H）/ H <20，优选<10，其中n1和n2分别是改性剂和均化器的化合价，M和H是 浓度，摩尔％，分别为改性剂和均化剂。 根据本发明的纤维包含至少50，通常大于80重量％的SiO 2，并且还具有至少0.2摩尔％，优选至少1摩尔％的最大改性剂浓度。 均化器的存在经常允许实现导致现有技术纤维中的相分离或结晶的改性剂浓度。 还公开了一种制造光纤的方法，该方法包括形成具有较高蒸气压的金属卤化物络合物。

公开(公告)号：US4194807A

公开(公告)日：1980-03-25

申请号：US7310

申请日：1979-01-29

Applicant: Georg Gliemeroth

Inventor： Georg Gliemeroth

IPC: C03B37/018 ,  C03C13/04 ,  G02B6/028 ,  G02B5/14

CPC classification number: G02B6/0281 ,  C03B37/01807 ,  C03C13/045 ,  C03C13/046 ,  C03C13/048 ,  C03B2201/10 ,  C03B2201/36 ,  C03B2201/40 ,  C03B2201/78 ,  C03B2203/22 ,  C03B2203/225

Abstract: The present invention discloses an optical fiber wave-guide for signal transmission in which the signal fiber has a linear thermal expansion co-efficient in all of the fiber elements above 15.times.10.sup.-7 /.degree.C. in which the outer mantle is composed of the silicon dioxide modified glass, and the optical fiber wave-guide is composed of an inner silicon dioxide-free mantle employing germanium oxide and other components and has an inner silicon dioxide-free core which is composed of germanium oxide and optionally other additives. The fiber is produced according to the chemical vapor deposition process, and preferably has a refractive index gradient which has the shape of a parabola.

Abstract translation: 本发明公开了一种用于信号传输的光纤波导，其中信号光纤在15×10 -7 /℃以上的所有光纤元件中具有线性热膨胀系数，其中外壳由硅 二氧化硅改性玻璃，并且光纤波导由使用氧化锗和其它组分的内部无二氧化硅层构成，并且具有由氧化锗和任选的其它添加剂组成的内部二氧化硅的芯。 纤维根据化学气相沉积工艺生产，优选具有抛物线形状的折射率梯度。

公开(公告)号：US09484706B1

公开(公告)日：2016-11-01

申请号：US13494768

申请日：2012-06-12

Applicant: Joona Koponen ,  Laeticia Petit ,  Petteri Väinänen

Inventor： Joona Koponen ,  Laeticia Petit ,  Petteri Väinänen

IPC: G02B6/036 ,  H01S3/067 ,  G02B6/02

CPC classification number: C03B37/0253 ,  C03B37/01228 ,  C03B37/0124 ,  C03B37/01245 ,  C03B37/02754 ,  C03B37/02763 ,  C03B2201/34 ,  C03B2201/36 ,  C03B2203/10 ,  C03B2203/18 ,  C03B2203/23 ,  C03B2205/08 ,  C03B2205/13 ,  C03B2205/44 ,  C03C25/68 ,  G02B6/02 ,  G02B6/02052 ,  G02B6/03622 ,  G02B6/14 ,  H01S3/06708 ,  H01S3/06745

Abstract: Tapered core fibers are produced using tapered core rods that can be etched or ground so that a fiber cladding has a constant diameter. The tapered core can be an actively doped core, or a passive core. One or more sleeving tubes can be collapsed onto a tapered core rod and exterior portions of the collapsed sleeving tubes can be ground to provide a constant cladding diameter in a fiber drawn from the preform.

Abstract translation: 锥形芯纤维使用可以被蚀刻或研磨的锥形芯棒来制造，使得光纤包层具有恒定的直径。 锥形芯可以是有源掺杂的芯或被动芯。 一个或多个套筒管可以折叠到锥形芯棒上，并且可以将折叠的套管的外部部分研磨以在从预成型件拉出的纤维中提供恒定的包层直径。

公开(公告)号：US09140873B2

公开(公告)日：2015-09-22

申请号：US14307338

申请日：2014-06-17

Applicant: Lockheed Martin Corporation

Inventor： John D. Minelly

IPC: G02B6/02 ,  H01S3/067 ,  G02B6/44 ,  C03B37/012 ,  G02B6/028 ,  G02B6/036 ,  H01S3/106 ,  H01S3/16

CPC classification number: G02B6/4478 ,  C03B37/0122 ,  C03B37/01222 ,  C03B2201/08 ,  C03B2201/31 ,  C03B2201/32 ,  C03B2201/36 ,  C03B2203/12 ,  C03B2203/18 ,  C03B2203/22 ,  C03B2203/42 ,  G02B6/02042 ,  G02B6/02295 ,  G02B6/02333 ,  G02B6/02371 ,  G02B6/028 ,  G02B6/0283 ,  G02B6/036 ,  G02B6/449 ,  H01S3/06704 ,  H01S3/06716 ,  H01S3/06737 ,  H01S3/06741 ,  H01S3/06758 ,  H01S3/1067 ,  H01S3/1618 ,  H01S2301/02 ,  H01S2301/04

Abstract: An apparatus and method for compensating for mode-profile distortions caused by bending optical fibers having large mode areas. In various embodiments, the invention micro-structures the index of refraction in the core and surrounding areas of the inner cladding from the inner bend radius to the outer bend radius in a manner that compensates for the index changes that are otherwise induced in the index profile by the geometry and/or stresses to the fiber caused by the bending. Some embodiments of an apparatus and method include a fiber having a plurality of substantially parallel cores, the fiber including a straight section and a curved section; guiding signal light primarily in a second core in the straight section; guiding the signal light from the second core into a first core between the straight section and the curved section; and guiding the signal light primarily in the first core in the curved section.

Abstract translation: 一种用于补偿由具有大模式区域的弯曲光纤引起的模式轮廓畸变的装置和方法。 在各种实施例中，本发明将内包层的芯和周围区域的折射率从内弯曲半径微结构化到补偿在折射率分布中否则引起的折射率变化的方式 通过由弯曲引起的对纤维的几何形状和/或应力。 装置和方法的一些实施例包括具有多个基本平行的芯的光纤，所述光纤包括直线部分和弯曲部分; 引导信号光主要在直线部分的第二芯中; 将来自第二芯的信号光引导到直线部分和弯曲部分之间的第一芯部; 并且在弯曲部分中主要在第一芯中引导信号光。

公开(公告)号：US20150043879A1

公开(公告)日：2015-02-12

申请号：US14307338

申请日：2014-06-17

Applicant: Lockheed Martin Corporation

Inventor： John D. Minelly

IPC: G02B6/44 ,  G02B6/036 ,  G02B6/028 ,  G02B6/02

CPC classification number: G02B6/4478 ,  C03B37/0122 ,  C03B37/01222 ,  C03B2201/08 ,  C03B2201/31 ,  C03B2201/32 ,  C03B2201/36 ,  C03B2203/12 ,  C03B2203/18 ,  C03B2203/22 ,  C03B2203/42 ,  G02B6/02042 ,  G02B6/02295 ,  G02B6/02333 ,  G02B6/02371 ,  G02B6/028 ,  G02B6/0283 ,  G02B6/036 ,  G02B6/449 ,  H01S3/06704 ,  H01S3/06716 ,  H01S3/06737 ,  H01S3/06741 ,  H01S3/06758 ,  H01S3/1067 ,  H01S3/1618 ,  H01S2301/02 ,  H01S2301/04

Abstract: An apparatus and method for compensating for mode-profile distortions caused by bending optical fibers having large mode areas. In various embodiments, the invention micro-structures the index of refraction in the core and surrounding areas of the inner cladding from the inner bend radius to the outer bend radius in a manner that compensates for the index changes that are otherwise induced in the index profile by the geometry and/or stresses to the fiber caused by the bending. Some embodiments of an apparatus and method include a fiber having a plurality of substantially parallel cores, the fiber including a straight section and a curved section; guiding signal light primarily in a second core in the straight section; guiding the signal light from the second core into a first core between the straight section and the curved section; and guiding the signal light primarily in the first core in the curved section.

Abstract translation: 一种用于补偿由具有大模式区域的弯曲光纤引起的模式轮廓畸变的装置和方法。 在各种实施例中，本发明将内包层的芯和周围区域的折射率从内弯曲半径微结构化到补偿在折射率分布中否则引起的折射率变化的方式 通过由弯曲引起的对纤维的几何形状和/或应力。 装置和方法的一些实施例包括具有多个基本平行的芯的光纤，所述光纤包括直线部分和弯曲部分; 引导信号光主要在直线部分的第二芯中; 将来自第二芯的信号光引导到直线部分和弯曲部分之间的第一芯部; 并且在弯曲部分中主要在第一芯中引导信号光。

公开(公告)号：US08494013B2

公开(公告)日：2013-07-23

申请号：US12908102

申请日：2010-10-20

Applicant: Stuart Gray ,  Shenping Li ,  Ji Wang

Inventor： Stuart Gray ,  Shenping Li ,  Ji Wang

IPC: H01S3/30 ,  C03B37/075 ,  C03B37/01 ,  C03C13/00 ,  G02B6/00 ,  G02B6/02

CPC classification number: C03B37/014 ,  C03B37/01446 ,  C03B2201/08 ,  C03B2201/22 ,  C03B2201/31 ,  C03B2201/34 ,  C03B2201/36 ,  C03B2203/23 ,  C03C4/0071 ,  C03C13/047 ,  C03C2201/22 ,  C03C2201/31 ,  C03C2201/36 ,  H01S3/06712 ,  H01S3/06716 ,  H01S3/06733 ,  Y02P40/57

Abstract: Photodarkening resistant optical fiber lasing media and fiber lasers incorporating the same are disclosed. In one embodiment, an optical fiber lasing medium includes a core portion formed from silica-based glass comprising a rare-earth dopant and deuterium, the core portion having an index of refraction nc, a numerical aperture NAc. A concentration of defect color centers in the core portion is less than 1×1016/cm3. Deuterium is combined with the defect color centers to form reacted defect color centers that do not absorb ultraviolet and visible wavelengths of light. A first cladding portion is formed from silica-based glass, the first cladding portion surrounding and directly contacting the core portion and having an index of refraction n1, wherein the index of refraction n1 of the first cladding portion is less than the index of refraction nc of the core portion. Methods of forming the photodarkening resistant optical fiber lasing media are also disclosed.

Abstract translation: 公开了防光纤光纤激光介质和结合光纤激光器的光纤激光器。 在一个实施例中，光纤激光介质包括由包含稀土掺杂剂和氘的二氧化硅基玻璃形成的芯部分，芯部分具有折射率nc，数值孔径NAc。 核心部分的缺陷颜色中心的浓度小于1×1016 / cm3。 氘与缺陷色中心结合，形成不吸收紫外和可见波长光的反应缺陷色中心。 第一包层部分由二氧化硅基玻璃形成，第一包层部分围绕并直接接触芯部并具有折射率n1，其中第一包层部分的折射率n1小于折射率nc 的核心部分。 还公开了形成光抗剥离光纤激光介质的方法。

公开(公告)号：US20120134376A1

公开(公告)日：2012-05-31

申请号：US13303967

申请日：2011-11-23

Applicant: Ekaterina Burov ,  Gilles Melin ,  Alain Pastouret ,  David Boivin

Inventor： Ekaterina Burov ,  Gilles Melin ,  Alain Pastouret ,  David Boivin

IPC: H01S3/02 ,  B05D5/06 ,  H05H1/24 ,  G02B6/02 ,  H01S3/067 ,  B82Y20/00

CPC classification number: C03B37/0122 ,  C03B37/016 ,  C03B37/018 ,  C03B37/01838 ,  C03B2201/28 ,  C03B2201/30 ,  C03B2201/31 ,  C03B2201/34 ,  C03B2201/36 ,  C03B2203/14 ,  C03B2203/23 ,  C03B2203/42 ,  C03C13/045 ,  G02B6/0229 ,  G02B6/02338 ,  G02B6/02347 ,  G02B6/02357 ,  G02B6/02361 ,  H01S3/06741 ,  H01S3/1603 ,  H01S3/169

Abstract: An optical fiber includes a central core for transmitting and amplifying an optical signal, an optical cladding to confine the optical signal transmitted by the central core, and an outer cladding. The central core is formed of a core matrix and nanoparticles. The nanoparticles are formed of a nanoparticle matrix and rare earth dopants (i.e., a nanoparticle matrix surrounding the rare earth dopants). The optical cladding has a plurality of holes separated by a pitch and extending along the length of the optical fiber.

Abstract translation: 光纤包括用于传输和放大光信号的中心纤芯，用于限制由中心纤芯传输的光信号的光学包层和外包层。 中心芯由核心基质和纳米粒子形成。 纳米颗粒由纳米颗粒基质和稀土掺杂剂（即围绕稀土掺杂剂的纳米颗粒基体）形成。 光学包层具有由间距分开并沿着光纤的长度延伸的多个孔。

公开(公告)号：US20120069858A1

公开(公告)日：2012-03-22

申请号：US12908102

申请日：2010-10-20

Applicant: Stuart Gray ,  Shenping Li ,  Ji Wang

Inventor： Stuart Gray ,  Shenping Li ,  Ji Wang

IPC: H01S3/30 ,  G02B6/02 ,  B29D11/00 ,  G02B6/028

CPC classification number: C03B37/014 ,  C03B37/01446 ,  C03B2201/08 ,  C03B2201/22 ,  C03B2201/31 ,  C03B2201/34 ,  C03B2201/36 ,  C03B2203/23 ,  C03C4/0071 ,  C03C13/047 ,  C03C2201/22 ,  C03C2201/31 ,  C03C2201/36 ,  H01S3/06712 ,  H01S3/06716 ,  H01S3/06733 ,  Y02P40/57

Abstract: Photodarkening resistant optical fiber lasing media and fiber lasers incorporating the same are disclosed. In one embodiment, an optical fiber lasing medium includes a core portion formed from silica-based glass comprising a rare-earth dopant and deuterium, the core portion having an index of refraction nc, a numerical aperture NAc. A concentration of defect color centers in the core portion is less than 1×1016/cm3. Deuterium is combined with the defect color centers to form reacted defect color centers that do not absorb ultraviolet and visible wavelengths of light. A first cladding portion is formed from silica-based glass, the first cladding portion surrounding and directly contacting the core portion and having an index of refraction n1, wherein the index of refraction n1 of the first cladding portion is less than the index of refraction ncof the core portion. Methods of forming the photodarkening resistant optical fiber lasing media are also disclosed.

Abstract translation: 公开了防光纤光纤激光介质和结合光纤激光器的光纤激光器。 在一个实施例中，光纤激光介质包括由包含稀土掺杂剂和氘的二氧化硅基玻璃形成的芯部分，芯部分具有折射率nc，数值孔径NAc。 核心部分的缺陷颜色中心的浓度小于1×1016 / cm3。 氘与缺陷色中心结合，形成不吸收紫外和可见波长光的反应缺陷色中心。 第一包层部分由二氧化硅基玻璃形成，第一包层部分包围并直接接触芯部并且具有折射率n1，其中第一包层部分的折射率n1小于折射率ncof 核心部分。 还公开了形成光抗剥离光纤激光介质的方法。