公开(公告)号：US20240353613A1

公开(公告)日：2024-10-24

申请号：US18688306

申请日：2022-08-29

Applicant: OFS Fitel, LLC

Inventor： Tristan Kremp ,  Jie Li ,  Jiawei Luo ,  Andrei A Stolov

IPC: G02B6/028 ,  C03C3/06 ,  C03C13/04 ,  G02B6/036

CPC classification number: G02B6/0288 ,  C03C3/06 ,  C03C13/046 ,  C03C2201/31 ,  C03C2213/00 ,  G02B6/036

Abstract: A hydrogen diffusion barrier is included as an intra-cladding layer (i.e., a “ring”) within an optical fiber structure. The hydrogen diffusion barrier ring may comprise alumina (or other glass oxides) and is positioned within the fiber cladding at an optimum location with respect to the central core region of the optical fiber. The thickness of the barrier ring may be controlled by fabrication processes to control properties such as hydrogen permeability. Other alkali and alkaline earth metal oxides may be included in the composition of the barrier ring and are useful in preventing crystal formation during the fiber fabrication process.

公开(公告)号：US10018780B2

公开(公告)日：2018-07-10

申请号：US15725014

申请日：2017-10-04

Applicant: YANGTZE OPTICAL FIBRE AND CABLE JOINT STOCK LIMITED COMPANY

Inventor： Lei Zhang ,  Shengya Long ,  Jihong Zhu ,  Jun Wu ,  Ruichun Wang

IPC: G02B6/02 ,  G02B6/00 ,  G02B6/036 ,  C03C13/04

CPC classification number: G02B6/03683 ,  C03C3/06 ,  C03C13/045 ,  C03C13/046 ,  C03C2201/12 ,  C03C2201/31 ,  C03C2201/32 ,  C03C2201/42 ,  C03C2201/50 ,  C03C2201/54 ,  C03C2213/00 ,  G02B6/02009

Abstract: A doping optimized single-mode optical fiber with ultra low attenuation includes a core layer and cladding layers. The cladding layers has an inner cladding layer surrounding the core layer, a trench cladding layer surrounding the inner cladding layer, an auxiliary outer cladding layer surrounding the trench cladding layer, and an outer cladding layer surrounding the auxiliary outer cladding layer. The content of fluorine in the core layer is ≤0.5 wt %, ΔGe≤0.12%, Δn1≤0.12%. The content of fluorine in the inner cladding layer is 0.5-1.5 wt %, Δn2≤−0.14%. The content of fluorine in the trench cladding layer is 1-3 wt %, Δn3≤−0.25%. The content of fluorine in the auxiliary outer cladding layer is 0.5-2 wt %, Δn4≤−0.14%. The outer cladding layer is a pure silicon dioxide glass layer and/or a metal-doped silicon dioxide glass layer.

公开(公告)号：US20180057396A1

公开(公告)日：2018-03-01

申请号：US15691139

申请日：2017-08-30

Applicant: Corning Incorporated

Inventor： Ming-Jun Li ,  Shenping Li ,  Jeffery Scott Stone

IPC: C03C13/04 ,  G02B6/036 ,  G02B6/02 ,  C03B37/012 ,  G01D5/353

CPC classification number: C03C13/046 ,  C03B37/01237 ,  C03B37/018 ,  C03B37/025 ,  C03B37/02763 ,  C03B2203/18 ,  C03B2203/22 ,  C03B2203/24 ,  C03C3/06 ,  C03C2201/31 ,  C03C2213/00 ,  G01D5/35364 ,  G01D5/3538 ,  G02B6/02014 ,  G02B6/03633 ,  H04B10/071 ,  H04B10/25

Abstract: The single-mode optical fibers have a core region that includes an inner core region having a delta value Δ1 and a radius r1 immediately surrounded by an outer core region of radius r2 and a delta value Δ2

公开(公告)号：US09878943B2

公开(公告)日：2018-01-30

申请号：US15471344

申请日：2017-03-28

Applicant: Corning Incorporated

Inventor： Dana Craig Bookbinder ,  Robert Brett Desorcie ,  Hazel Benton Matthews, III ,  Pushkar Tandon

IPC: G02B6/036 ,  C03C25/66 ,  C03C25/10

CPC classification number: C03C25/66 ,  C03B37/01205 ,  C03B37/01446 ,  C03B37/0146 ,  C03B37/027 ,  C03B2201/10 ,  C03B2201/12 ,  C03B2201/20 ,  C03B2201/22 ,  C03B2201/31 ,  C03B2201/32 ,  C03B2201/34 ,  C03B2201/42 ,  C03B2203/23 ,  C03B2203/24 ,  C03C3/06 ,  C03C13/045 ,  C03C25/1061 ,  C03C25/1068 ,  C03C2201/11 ,  C03C2201/22 ,  C03C2201/31 ,  C03C2203/54 ,  G02B6/02 ,  G02B6/021 ,  G02B6/03627 ,  G02B6/0365 ,  Y02P40/57

Abstract: The present disclosure is directed to a method of making an optical fiber with improved bend performance, the optical fiber having a core and at least one cladding layer, and a chlorine content in the in the last layer of the at least one cladding layer that is greater than 500 ppm by weight. The fiber is prepared using a mixture of a carrier gas, a gaseous chlorine source material and a gaseous reducing agent during the sintering of the last or outermost layer of the at least one cladding layer. The inclusion of the reducing gas into a mixture of the carrier gas and gaseous chlorine material reduces oxygen-rich defects that results in at least a 20% reduction in TTP during hydrogen aging testing.

公开(公告)号：US09804324B2

公开(公告)日：2017-10-31

申请号：US14609689

申请日：2015-01-30

Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.

Inventor： Manabu Shiozaki ,  Kazuhiro Yonezawa ,  Tadashi Enomoto

IPC: G02B6/028 ,  G02B6/036 ,  C03C13/04 ,  C03C25/10

CPC classification number: G02B6/0288 ,  C03C13/046 ,  C03C25/1061 ,  C03C2201/28 ,  C03C2201/31 ,  G02B6/03627 ,  G02B6/0365

Abstract: An embodiment of the invention relates to a GI-MMF with a structure for achieving widening of bandwidth in a wider wavelength range and improving manufacturing easiness of a refractive index profile in a core. In an example of the GI-MMF, a whole region of the core is doped with Ge and a part of the core is doped with P. Namely, the Ge-doped region coincides with the whole region of the core and the Ge-doped region is comprised of a partially P-doped region doped with Ge and P; and a P-undoped region doped with Ge but not intentionally doped with P.

公开(公告)号：US20170176673A1

公开(公告)日：2017-06-22

申请号：US15378356

申请日：2016-12-14

Applicant: Corning Incorporated

Inventor： George Edward Berkey ,  Steven Bruce Dawes

IPC: G02B6/036 ,  C03B37/014 ,  C03B37/025 ,  G02B6/02

CPC classification number: G02B6/03627 ,  C03B19/1453 ,  C03B32/00 ,  C03B37/01446 ,  C03B37/01453 ,  C03B37/025 ,  C03B2201/02 ,  C03B2201/12 ,  C03B2201/20 ,  C03B2201/31 ,  C03B2203/23 ,  C03B2203/24 ,  C03C3/06 ,  C03C13/045 ,  C03C2201/11 ,  C03C2201/12 ,  C03C2201/20 ,  C03C2201/31 ,  C03C2203/54 ,  G02B6/02009 ,  G02B6/036 ,  G02B6/03622

Abstract: Bromine doping of silica glass is demonstrated. Bromine doping can be achieved with SiBr4 as a precursor. Bromine doping can occur during heating, consolidation or sintering of a porous silica glass body. Doping concentrations of bromine increase with increasing pressure of the doping precursor and can be modeled with a power law equation in which doping concentration is proportional to the square root of the pressure of the doping precursor. Bromine is an updopant in silica and the relative refractive index of silica increases approximately linearly with doping concentration. Bromine can be used as a dopant for optical fibers and can be incorporated in the core and/or cladding regions. Core doping concentrations of bromine are sufficient to permit use of undoped silica as an inner cladding material in fibers having a trench in the refractive index profile. Co-doping of silica glass with bromine and chlorine is also demonstrated.

公开(公告)号：US20160291246A1

公开(公告)日：2016-10-06

申请号：US14609689

申请日：2015-01-30

Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.

Inventor： Manabu SHIOZAKI ,  Kazuhiro YONEZAWA ,  Tadashi ENOMOTO

IPC: G02B6/028 ,  C03C13/04 ,  G02B6/036

CPC classification number: G02B6/0288 ,  C03C13/046 ,  C03C25/1061 ,  C03C2201/28 ,  C03C2201/31 ,  G02B6/03627 ,  G02B6/0365

Abstract: An embodiment of the invention relates to a GI-MMF with a structure for achieving widening of bandwidth in a wider wavelength range and improving manufacturing easiness of a refractive index profile in a core. In an example of the GI-MMF, a whole region of the core is doped with Ge and a part of the core is doped with P. Namely, the Ge-doped region coincides with the whole region of the core and the Ge-doped region is comprised of a partially P-doped region doped with Ge and P; and a P-undoped region doped with Ge but not intentionally doped with P.

Abstract translation: 本发明的实施例涉及具有用于在更宽波长范围内实现带宽扩大并提高芯体中的折射率分布的制造容易度的结构的GI-MMF。 在GI-MMF的示例中，芯的整个区域掺杂有Ge，并且一部分核掺杂有P.即，Ge掺杂区域与芯的整个区域重合，并且Ge掺杂 区域由掺杂有Ge和P的部分P掺杂区域组成; 和掺杂有Ge但未有意掺杂的P的未掺杂区域。

公开(公告)号：US08798412B2

公开(公告)日：2014-08-05

申请号：US10929142

申请日：2004-08-27

Applicant: Dana C. Bookbinder ,  Lisa C. Chacon ,  Adam J. G. Ellison ,  Rostislav R. Khrapko ,  Stephan L. Logunov ,  Michael T. Murtagh ,  Sabyasachi Sen

Inventor： Dana C. Bookbinder ,  Lisa C. Chacon ,  Adam J. G. Ellison ,  Rostislav R. Khrapko ,  Stephan L. Logunov ,  Michael T. Murtagh ,  Sabyasachi Sen

IPC: G02B6/02

CPC classification number: G02B6/0228 ,  C03B37/01211 ,  C03B37/0124 ,  C03B37/014 ,  C03B37/01413 ,  C03B37/01446 ,  C03B37/0146 ,  C03B37/01466 ,  C03B37/01473 ,  C03B37/01807 ,  C03B37/01815 ,  C03B37/01838 ,  C03B37/01853 ,  C03B37/027 ,  C03B2201/12 ,  C03B2201/20 ,  C03B2201/22 ,  C03B2201/31 ,  C03B2201/50 ,  C03B2203/22 ,  C03B2203/26 ,  C03B2203/29 ,  C03B2207/90 ,  C03C3/06 ,  C03C13/045 ,  C03C13/046 ,  C03C13/048 ,  C03C2201/12 ,  C03C2201/31 ,  C03C2201/50 ,  G02B6/02242 ,  G02B6/02271 ,  G02B6/028 ,  G02B6/03611 ,  G02B6/03644 ,  G02B6/03694 ,  Y10T428/294

Abstract: Disclosed is an optical fiber having a core with an alkali metal oxide dopant in an peak amount greater than about 0.002 wt. % and less than about 0.1 wt. %. The alkali metal oxide concentration varies with a radius of the optical fiber. By appropriately selecting the concentration of alkali metal oxide dopant in the core and the cladding, a low loss optical fiber may be obtained. Also disclosed are several methods of making the optical fiber including the steps of forming an alkali metal oxide-doped rod, and adding additional glass to form a draw perform. Preferably, the draw preform has a final outer dimension (d2), wherein an outer dimension (d1) of the rod is less than or equal to 0.06 times the final outer dimension (d2). In a preferred embodiment, the alkali metal oxide-doped rod is inserted into the centerline hole of a preform to form an assembly.

Abstract translation: 公开了一种光纤，其具有具有大于约0.002重量％的峰值的碱金属氧化物掺杂剂的芯。 ％且小于约0.1wt。 ％。 碱金属氧化物浓度随着光纤的半径而变化。 通过适当地选择芯和包层中的碱金属氧化物掺杂剂的浓度，可以获得低损耗光纤。 还公开了几种制造光纤的方法，包括形成碱金属氧化物掺杂棒的步骤，并且添加额外的玻璃以形成拉伸性能。 优选地，拉伸预成型件具有最终外部尺寸（d2），其中杆的外部尺寸（d1）小于或等于最终外部尺寸（d2）的0.06倍。 在一个优选实施例中，将掺入碱金属氧化物的棒插入到预成型件的中心线孔中以形成组件。

公开(公告)号：US08554039B2

公开(公告)日：2013-10-08

申请号：US12901729

申请日：2010-10-11

Applicant: Seldon David Benjamin ,  Kevin Wallace Bennett ,  Gregory Blake Bohler ,  Jeffrey Coon ,  Samuel Don Navé

Inventor： Seldon David Benjamin ,  Kevin Wallace Bennett ,  Gregory Blake Bohler ,  Jeffrey Coon ,  Samuel Don Navé

IPC: G02B6/132

CPC classification number: G02B6/0288 ,  C03C3/06 ,  C03C25/105 ,  C03C25/1065 ,  C03C2201/31 ,  G02B6/02023 ,  G02B6/02395 ,  G02B6/0281 ,  G02B6/03627 ,  G02B6/4402

Abstract: An optical fiber comprising: (i) a multi-mode silica based glass core, said core having a 80-300 μm diameter and an index of refraction n1; (ii) a cladding surrounding the core, said cladding having a thickness ≦20 μm and index of refraction index of refraction n2 n2; and (iv) a permanent buffer.

Abstract translation: 一种光纤，包括：（i）多模二氧化硅基玻璃芯，所述芯具有80-300毫米直径和折射率n1; （ii）围绕芯的包层，所述包层具有20μm的厚度和折射率n2 n2; 和（iv）永久性缓冲液。

公开(公告)号：US20130089296A1

公开(公告)日：2013-04-11

申请号：US13253445

申请日：2011-10-05

Applicant: Sumio Hoshino ,  Kazuhiro Yonezawa

Inventor： Sumio Hoshino ,  Kazuhiro Yonezawa

IPC: G02B6/02

CPC classification number: C03C13/046 ,  C03B37/01446 ,  C03B2201/20 ,  C03B2201/31 ,  C03B2203/22 ,  C03B2203/26 ,  C03C2201/11 ,  C03C2201/31 ,  G02B6/0281 ,  G02B6/0288

Abstract: The present invention relates to a multi-mode optical fiber having a structure enabling stable production and broadening of communication bandwidth as compared with the conventional structures. The multi-mode optical fiber has a core with a diameter 2a that is doped with GeO2 and chlorine. The chlorine concentration profile in the core along the diametric direction of the multi-mode optical fiber has a shape such that the chlorine concentration at a second measurement position within a range at a distance of from 0.9 a to 1.0 a from the center of the core in the radial direction thereof is higher than the chlorine concentration at a first measurement position at a distance of a/2 from the center of the core in the radial direction thereof.

Abstract translation: 本发明涉及一种具有与常规结构相比能够稳定生产和扩大通信带宽的结构的多模光纤。 多模光纤具有掺杂有GeO 2和氯的直径为2a的芯。 核心中沿着多模光纤的直径方向的氯浓度分布具有这样的形状，使得第二测量位置处的氯浓度在距芯的中心0.9a至1.0a之间的范围内 在径向方向上的距离高于核心的径向a / 2的距离处的第一测量位置处的氯浓度。