公开(公告)号：US09658393B2

公开(公告)日：2017-05-23

申请号：US14420467

申请日：2013-03-15

Applicant: OFS Fitel, LLC

Inventor： David J Digiovanni ,  John M Fini ,  Robert S Windeler

IPC: G02B6/02 ,  G02B6/032 ,  G02B6/036 ,  C03B37/012 ,  C03B37/027 ,  G02B6/024

CPC classification number: G02B6/032 ,  C03B37/01217 ,  C03B37/0122 ,  C03B37/02709 ,  C03B37/02781 ,  C03B2203/14 ,  C03B2203/16 ,  C03B2203/30 ,  C03B2203/302 ,  C03B2203/31 ,  C03B2205/10 ,  G02B6/02328 ,  G02B6/024 ,  Y02P40/57

Abstract: A hollow core fiber has a cladding comprising a matrix of cells, wherein each cell comprises a hole and a wall surrounding the hole. The fiber further has a hollow core region comprising a core gap in the matrix of cells, wherein the core gap spans a plurality of cells and has a boundary defined by the interface of the core gap. The matrix of cells comprises a plurality of lattice cells, and a plurality of defect cells characterized by at least one difference in at least one property from that of the lattice cells. The cells at the core region boundary include lattice cells and defect cells that are arranged in a pattern that define two orthogonal axes of reflection symmetry, so as to produce birefringence in a light propagating through the hollow core fiber.

公开(公告)号：US20160126692A1

公开(公告)日：2016-05-05

申请号：US14995300

申请日：2016-01-14

Applicant: OFS Fitel, LLC

Inventor： David J. DiGiovanni

IPC: H01S3/094 ,  H01S3/0941 ,  G02B6/036 ,  H01S3/067 ,  G02B6/024

CPC classification number: H01S3/094007 ,  C03B37/01217 ,  C03B2203/22 ,  C03B2203/31 ,  G02B6/024 ,  G02B6/0285 ,  G02B6/03616 ,  G02B6/03622 ,  G02B6/03627 ,  G02B6/03633 ,  G02B6/255 ,  H01S3/06712 ,  H01S3/06729 ,  H01S3/06733 ,  H01S3/0675 ,  H01S3/06754 ,  H01S3/094053 ,  H01S3/09408 ,  H01S3/0941 ,  H01S3/09415

Abstract: A double-clad (DC) polarization-maintaining (PM) optical fiber comprises a core, an inner cladding, an outer cladding, and stress rods. The core has a core refractive index (ncore). The inner cladding is located radially exterior to the core and has an inner cladding refractive index (n1), which is less than ncore. The stress rods are located in the inner cladding, and each stress rod has a stress rod refractive index (n2), which is substantially matched to n1. The outer cladding is located radially exterior to the inner cladding. The outer cladding has an outer cladding refractive index (nout), which is less than n1.

Abstract translation: 双包层（DC）偏振维持（PM）光纤包括芯，内包层，外包层和应力棒。 核心具有核心折射率（ncore）。 内包层位于芯的径向外侧，并且具有小于ncore的内包层折射率（n1）。 应力杆位于内包层中，每个应力杆具有与n1基本匹配的应力棒折射率（n2）。 外包层位于内包层的径向外侧。 外包层具有小于n1的外包层折射率（nout）。

公开(公告)号：US08689587B2

公开(公告)日：2014-04-08

申请号：US13612152

申请日：2012-09-12

Applicant: Edward M. Dowd ,  Paul E. Sanders

Inventor： Edward M. Dowd ,  Paul E. Sanders

IPC: C03B37/012

CPC classification number: C03B37/01217 ,  C03B2203/30 ,  C03B2203/302 ,  C03B2203/31

Abstract: Methods to fabricate an optical preform for draw into Polarization Maintaining (PM) or Polarizing (PZ) optical fiber are provided. The methods involve assembly of pre-shaped and pieced together bulk glass elements into preforms (“assembled preforms”) for simultaneous fusing and drawing into optical fiber. These preforms form a stress-induced birefringent optical core when drawn to fiber.

Abstract translation: 提供制造光学预成型件以绘制偏光维持（PM）或偏光（PZ）光纤的方法。 这些方法包括将预成型和拼接在一起的大块玻璃元件组装成预成型件（“组装的预制件”），用于同时熔合并拉入光纤。 当拉伸到纤维时，这些预制件形成应力诱导的双折射光学芯。

公开(公告)号：US20130167594A1

公开(公告)日：2013-07-04

申请号：US13612152

申请日：2012-09-12

Applicant: Edward M. Dowd ,  Paul E. Sanders

Inventor： Edward M. Dowd ,  Paul E. Sanders

IPC: C03B37/012

CPC classification number: C03B37/01217 ,  C03B2203/30 ,  C03B2203/302 ,  C03B2203/31

Abstract: Methods to fabricate an optical preform for draw into Polarization Maintaining (PM) or Polarizing (PZ) optical fiber are provided. The methods involve assembly of pre-shaped and pieced together bulk glass elements into preforms (“assembled preforms”) for simultaneous fusing and drawing into optical fiber. These preforms form a stress-induced birefringent optical core when drawn to fiber.

Abstract translation: 提供制造光学预成型件以绘制偏光维持（PM）或偏光（PZ）光纤的方法。 这些方法包括将预成型和拼接在一起的大块玻璃元件组装成预成型件（“组装的预制件”），用于同时熔合并拉入光纤。 当拉伸到纤维时，这些预制件形成应力诱导的双折射光学芯。

公开(公告)号：US20110132038A1

公开(公告)日：2011-06-09

申请号：US12958456

申请日：2010-12-02

Applicant: Steven Bruce Dawes ,  Andrey V. Filippov ,  Ming-Jun Li ,  Douglas H. Jennings ,  Valery A. Kozlov ,  Pushkar Tandon ,  Ji Wang

Inventor： Steven Bruce Dawes ,  Andrey V. Filippov ,  Ming-Jun Li ,  Douglas H. Jennings ,  Valery A. Kozlov ,  Pushkar Tandon ,  Ji Wang

IPC: C03B37/012

CPC classification number: C03B37/01282 ,  C03B2203/04 ,  C03B2203/14 ,  C03B2203/31 ,  C03B2203/34 ,  C03B2203/42 ,  Y02P40/57

Abstract: A method and an apparatus for making an optical fiber preform comprising the steps of (i) depositing a plurality of rods are deposited into an inner cavity of an apparatus; (ii) depositing particulate glass material in the inner cavity between the rods and the inner wall; and (iii) applying pressure against the particulate glass material to pressurize the particulate glass material against the plurality of rods.

Abstract translation: 一种用于制造光纤预制棒的方法和装置，其包括以下步骤：（i）沉积多个杆，沉积到装置的内腔中; （ii）将颗粒状玻璃材料沉积在杆和内壁之间的内腔中; 和（iii）对颗粒状玻璃材料施加压力以将颗粒状玻璃材料压靠在多个杆上。

公开(公告)号：US20070266738A1

公开(公告)日：2007-11-22

申请号：US11437382

申请日：2006-05-19

Applicant: Michael Thomas Gallagher ,  Ming-Jun Li ,  Joseph Edward McCarthy ,  Ji Wang ,  Luis Alberto Zenteno

Inventor： Michael Thomas Gallagher ,  Ming-Jun Li ,  Joseph Edward McCarthy ,  Ji Wang ,  Luis Alberto Zenteno

IPC: C03B37/022 ,  C03B37/15 ,  C03B37/027

CPC classification number: C03B37/01217 ,  C03B37/01211 ,  C03B2201/10 ,  C03B2201/14 ,  C03B2201/31 ,  C03B2201/34 ,  C03B2201/36 ,  C03B2203/12 ,  C03B2203/14 ,  C03B2203/31

Abstract: According to one embodiment a method of making optical fibers comprises: (i) manufacturing a core cane; (ii) situating a plurality of microstructures selected from rods, air filled tubes and glass filed tubes and placing said microstructures adjacent to the core cane, said microstructures forming no more than 3 layers; (iii) placing the core cane with said adjacent microstructures inside a holding clad tube; and (iv) placing interstitial cladding rods inside the holding (clad) tube, thereby forming an assembly comprising a tube containing a core cane, a plurality of microstructures and interstitial cladding rods. The assembly is then drawn into a microstructured cane and an optical fiber is drawn from the microstructured cane. According to several embodiments, the method of making an optical fiber includes providing at least one air hole and at least one stress rod adjacent to the core.

Abstract translation: 根据一个实施例，制造光纤的方法包括：（i）制造芯棒; （ii）将选自杆，充气管和玻璃管的多个微结构放置在一起，并将所述微结构放置在与所述芯棒相邻的位置，所述微观结构不超过3层; （iii）将具有所述相邻微结构的芯棒放置在保持包层管内; 以及（iv）将间隙包层杆放置在保持（包覆）管内，由此形成包括含有芯棒，多个微结构和间隙包层棒的管的组件。 然后将组件拉入微结构的拐杖中，并且从微结构的拐杖中拉出光纤。 根据若干实施例，制造光纤的方法包括提供至少一个气孔和与芯相邻的至少一个应力棒。

公开(公告)号：US07289709B2

公开(公告)日：2007-10-30

申请号：US11454798

申请日：2006-06-19

Applicant: Jacob Riis Folkenberg ,  Martin Dybendal Nielsen ,  Niels Asger Mortensen

Inventor： Jacob Riis Folkenberg ,  Martin Dybendal Nielsen ,  Niels Asger Mortensen

IPC: G02B6/02 ,  G02B6/036 ,  G02B6/00 ,  G02B6/028 ,  G02B6/032

CPC classification number: G02B6/02347 ,  C03B37/01217 ,  C03B37/0122 ,  C03B2203/14 ,  C03B2203/31 ,  C03B2203/42 ,  G02B6/02314 ,  G02B6/02352 ,  G02B6/02357 ,  G02B6/02361 ,  G02B6/02366 ,  G02B6/024 ,  G02B6/105

Abstract: A photonic crystal fiber includes a core region for propagating light in a longitudinal direction of the fiber, a cladding region surrounding the core region, the cladding region including micro-structural elements extending in the longitudinal direction. The cladding region further includes at least one stress element having a coefficient of thermal expansion αT,SAP and extending in the longitudinal direction of the photonic crystal fiber, the stress element(s) being located in a cladding background material having a coefficient of thermal expansion αT,cladback different from αT,SAP. The location of the at least one stress element relative to the core region and the micro-structural elements and the coefficients of thermal expansion αT,SAP and αT,cladback are adapted to provide a stress induced birefringence in the core region of the photonic crystal fiber. An article includes a photonic crystal fiber, a method of manufacturing and the use of a photonic crystal fiber are furthermore provided.

Abstract translation: 光子晶体光纤包括用于在光纤的纵向方向上传播光的芯区域，围绕芯区域的包层区域，包围区域包括在纵向方向上延伸的微结构元件。 包层区域还包括至少一个应力元件，其具有热膨胀系数αT，并且在光子晶体光纤的纵向方向上延伸，应力元件位于包层中 具有与αT不同的热膨胀系数αT的复合材料的背景材料。 至少一个应力元件相对于芯区域和微结构元件以及热膨胀系数αT，SAP和αT，复合材料的位置是 适于在光子晶体光纤的芯区域中提供应力诱导的双折射。 还提供了一种包括光子晶体光纤，制造方法和使用光子晶体光纤的物品。

公开(公告)号：US20070089462A1

公开(公告)日：2007-04-26

申请号：US11538334

申请日：2006-10-03

Applicant: Julia Farroni ,  Adrian Carter ,  Kanishka Tankala

Inventor： Julia Farroni ,  Adrian Carter ,  Kanishka Tankala

IPC: C03B37/023

CPC classification number: G02B6/02114 ,  C03B37/01217 ,  C03B37/01231 ,  C03B2201/10 ,  C03B2201/12 ,  C03B2201/28 ,  C03B2201/31 ,  C03B2201/34 ,  C03B2201/42 ,  C03B2203/23 ,  C03B2203/31 ,  G02B6/024

Abstract: An optical fiber comprises a photosensitive core that includes a concentration of a first material that increases the refractive index of the core and a concentration of a second material that is other than boron and that reduces the refractive index of the core. A cladding is disposed about the core for tending to confine light to the core. The fiber also includes at least one longitudinally extending region having a thermal coefficient of expansion that is different from the thermal coefficient of expansion of the cladding. In another embodiment, the core includes a concentration of germanium and a concentration of boron. Also disclosed is a polarization-maintaining double-clad (PM DC) fiber comprising one or both of at least one circular axially extending stress inducing region(s) and an inner cladding comprising a circular outer perimeter. Fibers according to the invention can include a rare earth dopant for emitting light of a selected wavelength responsive to being pumped by pump light of a pump wavelength that is different than the selected wavelength.

Abstract translation: 光纤包括感光芯，其包括提高芯的折射率的第一材料的浓度和不同于硼的第二材料的浓度，并降低芯的折射率。 围绕芯部布置包层以倾向于将光限制在芯部上。 纤维还包括具有不同于包层的热膨胀系数的热膨胀系数的至少一个纵向延伸区域。 在另一个实施方案中，芯包括锗的浓度和硼的浓度。 还公开了一种包括至少一个圆形轴向延伸的应力诱导区域和包含圆形外周边的内包层中的一个或两个的偏振保持双包层（PMDC）光纤。 根据本发明的纤维可以包括用于发射选定波长的光的稀土掺杂剂，其响应于通过不同于所选波长的泵浦波长的泵浦光泵浦。

公开(公告)号：US07016582B2

公开(公告)日：2006-03-21

申请号：US10473678

申请日：2003-03-04

Applicant: Iwao Okazaki ,  Ichiro Tsuchiya ,  Shinji Ishikawa ,  Motohide Yoshida ,  Tetsuya Haruna ,  Kazuyuki Soma

Inventor： Iwao Okazaki ,  Ichiro Tsuchiya ,  Shinji Ishikawa ,  Motohide Yoshida ,  Tetsuya Haruna ,  Kazuyuki Soma

IPC: G02B6/02 ,  C03B37/028 ,  C03B37/02 ,  C03B37/07 ,  C03B37/22

CPC classification number: G02B6/024 ,  C03B37/01217 ,  C03B2203/12 ,  C03B2203/302 ,  C03B2203/31 ,  G02B6/105

Abstract: Based on an intermediate 20A in which a cladding portion 22 is formed on the outer periphery of a core portion 21, a pair of holes 23 and 24 are provided parallel to the z axis on both sides of the core portion 21 within the cladding portion 22, and an intermediate 20 is thereby fabricated. In this intermediate 20, a width Ry in the y-axis direction is made smaller than a width Rx in the x-axis direction. Moreover, a cylindrical stress applying part 33 is inserted into a hole 23 of the intermediate 20, and a cylindrical stress applying part 34 is inserted into a hole 24 thereof. Thus, a preform 40 is formed. These materials are drawn and integrated together, and a polarization maintaining optical fiber is thereby manufactured.

Abstract translation: 基于在芯部21的外周形成有包覆部22的中间体20A，在包层部的芯部21的两侧与z轴平行地设置一对孔23,24 22，由此制造中间体20。 在该中间体20中，使y轴方向的宽度Ry比x轴方向的宽度Rx小。 此外，将圆筒形应力施加部33插入到中间体20的孔23中，将圆筒形应力施加部34插入其中。 因此，形成预制件40。 这些材料被拉伸并集成在一起，由此制造偏振保持光纤。

公开(公告)号：US20040156607A1

公开(公告)日：2004-08-12

申请号：US10760680

申请日：2004-01-19

Inventor： Julia A. Farroni ,  Upendra H. Manyam ,  Kanishka Tankala

IPC: G02B006/17 ,  G02B006/16

CPC classification number: G02B6/03694 ,  C03B37/01217 ,  C03B2201/34 ,  C03B2203/302 ,  C03B2203/31 ,  G02B6/024 ,  G02B6/03622 ,  Y02P40/57

Abstract: A polarization maintaining optical fiber has a core extending along a longitudinal axis, where the core includes a rare earth and a first index of refraction. A cladding is disposed about the core and has a first thermal coefficient of expansion (TCE) and a second index of refraction that is less than the first index of refraction. The fiber can include a pair of longitudinally extending members, and each of the members can have a TCE that is different than the first TCE of the cladding. The pair can be spaced apart by a distance di. A second cladding can be disposed about the first cladding, and the second cladding can have a third index of refraction that is less than the second index of refraction. The fiber can have a fundamental mode having a mode field diameter (MFD). The core can be a multimode core having a diameter dc that is greater than or equal to 15 microns, the numerical aperture of the core relative to the first cladding can be less than or equal to 0.12, the ratio di/MFD can be greater than or equal to 3, and the fiber can provide a beat length of less than 3.5 mm, where the beat length is measured at a wavelength of 633 nm.

Abstract translation: 偏振保持光纤具有沿纵轴延伸的芯，其中芯包括稀土和第一折射率。 包层设置在芯周围，并且具有小于第一折射率的第一热膨胀系数（TCE）和第二折射率。 纤维可以包括一对纵向延伸的构件，并且每个构件可以具有与包层的第一TCE不同的TCE。 该对可以间隔距离di。 可以围绕第一包层设置第二包层，并且第二包层可以具有小于第二折射率的第三折射率。 光纤可以具有模场直径（MFD）的基模。 芯可以是具有大于或等于15微米的直径dc的多模芯，芯相对于第一包层的数值孔径可以小于或等于0.12，di / MFD的比可以大于 或等于3，并且纤维可以提供小于3.5mm的拍子长度，其中在633nm的波长处测量拍子长度。