公开(公告)号：US11698490B2

公开(公告)日：2023-07-11

申请号：US17462734

申请日：2021-08-31

Applicant: Lawrence Livermore National Security, LLC

Inventor： Tiziana C. Bond ,  Sara Elizabeth Harrison ,  Catherine E. Reinhardt ,  Payal Kamlesh Singh ,  Victor V. Khitrov

IPC: G02B6/255 ,  C03C25/68 ,  G02B6/36

CPC classification number: G02B6/2552 ,  C03C25/68 ,  G02B6/3692

Abstract: The present disclosure relates to a method of forming a tapered optical fiber, where the optical fiber has a cladding encasing a core and has an initial outer diameter. The method involves applying opposing forces to spaced apart sections of the optical fiber. The spaced apart sections define a length portion representing a waist region. While applying the opposing forces, simultaneously applying heat to the waist region to gradually produce a taper of the optical fiber within the waist region. The taper has a first diameter at a midpoint of the waist region which is less than the initial outer diameter. An etch operation is then performed by chemically etching at least a subportion of the waist region of the optical fiber to reduce the subportion to a second diameter which is less than the first diameter.

公开(公告)号：US11681097B2

公开(公告)日：2023-06-20

申请号：US17318913

申请日：2021-05-12

Applicant: Magic Leap, Inc.

Inventor： Sarah Colline McQuaide ,  Brian T. Schowengerdt

IPC: G02B6/24 ,  G02B6/024 ,  G02B6/36 ,  F21V8/00 ,  C03C25/68

CPC classification number: G02B6/024 ,  C03C25/68 ,  G02B6/0046 ,  G02B6/3692

Abstract: A method of forming a tapered tip of a polarization-maintaining (PM) fiber includes inserting a tip of the PM fiber into a first etchant solution characterized by a first etching rate for the core of the PM fiber and a second etching rate for the stress members of the PM fiber, the second etching rate being lower than the first etching rate, withdrawing the tip of the PM fiber from the first etchant solution at a withdrawal rate, immersing the tip of the PM fiber in a second etchant solution for a time duration. The second etchant solution is characterized by a third etching rate for the core and a fourth etching rate for the stress members, the fourth etching rate being greater than the third etching rate. The method further includes withdrawing the tip of the PM fiber from the second etchant solution.

公开(公告)号：US09945985B2

公开(公告)日：2018-04-17

申请号：US15547501

申请日：2016-01-15

Applicant: CORACTIVE HIGH-TECH INC.

Inventor： Bertrand Morasse

IPC: G02B1/118 ,  G02B6/02 ,  G02B5/18 ,  G02B6/26 ,  C03B37/028 ,  C03C25/68

CPC classification number: G02B1/118 ,  C03B37/028 ,  C03C25/68 ,  G02B1/11 ,  G02B5/1814 ,  G02B5/1847 ,  G02B5/1857 ,  G02B5/1866 ,  G02B6/02123 ,  G02B6/08 ,  G02B6/262 ,  G02B6/29304

Abstract: There is provided a method for making an optical element having a textured surface. The method comprises the steps of: a) providing a plurality of primary optical fiber segments, each primary fiber segment comprising one or more cores; b) bundling the primary fiber segments into an assembly with the cores of said primary fiber segments extending parallely; c) transforming the assembly into a secondary structure comprising the parallely extending cores; and d) etching a surface of the secondary structure according to an etch profile of said secondary structure, the etch profile being defined by the parallely extending cores, thereby forming the textured surface of the optical element. An optical element having a textured surface is also provided.

公开(公告)号：US09910216B2

公开(公告)日：2018-03-06

申请号：US15645303

申请日：2017-07-10

Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.

Inventor： Tetsuya Haruna ,  Yoshiaki Tamura ,  Yoshihiro Tukuda

IPC: G02B6/036 ,  C03C3/06 ,  C03B37/014 ,  C03B37/018 ,  C03C25/68

CPC classification number: G02B6/03694 ,  C03B37/01446 ,  C03B37/01466 ,  C03B37/01473 ,  C03B37/018 ,  C03B2203/22 ,  C03C3/06 ,  C03C13/045 ,  C03C17/02 ,  C03C25/68 ,  C03C2201/50

Abstract: One of embodiments relates to an optical fiber in which an alkali metal element is efficiently doped to its core to suppress transmission loss from increasing. A mean concentration or a concentration distribution of the alkali metal element is adjusted such that 0.48 or less is obtained as an weighted value obtained by weighting a distribution of field intensity of guided light at a wavelength of 1550 nm, with respect to a radial direction distribution of a ratio ID2/Iω3 of an intensity ID2 of Raman scattering light by a silica three-membered ring structure and an intensity Iω3 of Raman scattering light by a Si—O stretching vibration, in a cross-sectional region having a diameter of 20 μm.

公开(公告)号：US20180016181A1

公开(公告)日：2018-01-18

申请号：US15633907

申请日：2017-06-27

Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.

Inventor： Yoshiaki TAMURA ,  Takemi HASEGAWA

IPC: C03B37/025 ,  C03B37/027 ,  G02B6/02

CPC classification number: C03B37/0253 ,  C03B37/01222 ,  C03B37/027 ,  C03B2201/075 ,  C03B2201/12 ,  C03B2203/34 ,  C03B2205/40 ,  C03C3/06 ,  C03C13/045 ,  C03C25/68 ,  C03C25/70 ,  C03C2201/02 ,  C03C2201/12 ,  C03C2201/23 ,  G02B6/02042

Abstract: Provided is a method for producing a multi-core optical fiber that includes a plurality of cores made of pure silica glass and exhibits a minor transmission loss. The method for producing a multi-core optical fiber according to the present invention is a method for producing a multi-core optical fiber including a plurality of cores made of pure silica glass substantially free of Ge and a cladding surrounding the plurality of cores and made of a fluorine-containing silica glass. The multi-core optical fiber is produced by drawing an optical fiber preform at a drawing tension T satisfying the relationship 0.06 g/μm2

公开(公告)号：US20180003859A1

公开(公告)日：2018-01-04

申请号：US15547501

申请日：2016-01-15

Applicant: CORACTIVE HIGH-TECH INC.

Inventor： Bertrand MORASSE

IPC: G02B1/118 ,  G02B5/18 ,  C03B37/028 ,  C03C25/68 ,  G02B6/26 ,  G02B6/02

CPC classification number: G02B1/118 ,  C03B37/028 ,  C03C25/68 ,  G02B1/11 ,  G02B5/1814 ,  G02B5/1847 ,  G02B5/1857 ,  G02B5/1866 ,  G02B6/02123 ,  G02B6/08 ,  G02B6/262 ,  G02B6/29304

Abstract: There is provided a method for making an optical element having a textured surface. The method comprises the steps of: a) providing a plurality of primary optical fiber segments, each primary fiber segment comprising one or more cores; b) bundling the primary fiber segments into an assembly with the cores of said primary fiber segments extending parallely; c) transforming the assembly into a secondary structure comprising the parallely extending cores; and d) etching a surface of the secondary structure according to an etch profile of said secondary structure, the etch profile being defined by the parallely extending cores, thereby forming the textured surface of the optical element. An optical element having a textured surface is also provided.

公开(公告)号：US20170227715A1

公开(公告)日：2017-08-10

申请号：US15166301

申请日：2016-05-27

Applicant: The Government of the United States of America, as represented by the Secretary of the Navy

Inventor： Jesse A. Frantz ,  Lynda E. Busse ,  Jason D. Myers ,  Leslie Brandon Shaw ,  Jasbinder S. Sanghera ,  Ishwar D. Aggarwal ,  Catalin M. Florea

IPC: G02B6/26

CPC classification number: G02B6/262 ,  C03C25/68 ,  C03C2218/34 ,  H05H1/46 ,  H05H2001/4645

Abstract: A system and method for creating an anti-reflective surface structure on an optical device includes a shim including a textured pattern, wherein the ship is configured to stamp the optical device with the textured pattern, a connector configured to place the optical device in proximity to the shim and apply a force to the optical device against the shim, and a laser source configured to heat the optical device by generating and applying a laser beam to the optical device when the optical device is placed in proximity to the shim.

公开(公告)号：US20160265120A1

公开(公告)日：2016-09-15

申请号：US15029328

申请日：2014-10-14

Applicant: CONSIGLIO NAZIONALE DELLE RICERCHE ,  CENTROFERMI MUSEO STORICO DELLA FISICA E CENTRO STUDI E RICERCHE

Inventor： Andrea Barucci ,  Franco Cosi ,  Stefano Pelli ,  Giancarlo Righini ,  Silvia Soria ,  Conti Nunzi ,  Ambra Giannetti

IPC: C23F1/16

CPC classification number: C23F1/16 ,  B05C3/02 ,  B05C3/10 ,  C03C25/68 ,  G01Q60/22 ,  G02B6/262 ,  H01L21/461 ,  H01L21/67075 ,  H01L21/67086

Abstract: A method, and corresponding apparatus, of fabricating a structure by chemical wet etching starting from a material rod of millimetric or sub-millemetric size, the method comprising: dipping an end portion (170) of the material rod (128,129) into a vessel (105) containing an etchant liquid (110) and a protective overlayer (175) floating on top of the etchant liquid, imparting a relative rotational movement of the etchant liquid with respect to the end portion (170) of the material rod immersed therein, wherein said imparting a relative rotational movement comprises imparting to the etchant liquid a rotational movement component with respect to a static reference system.

Abstract translation: 一种方法和相应的装置，其通过以毫米或亚米尺度的材料棒开始的化学湿蚀刻制造结构，所述方法包括：将所述材料棒（128,129）的端部（170）浸入容器（ 105），其包含漂浮在蚀刻剂液体顶部上的蚀刻剂液体（110）和保护性覆层（175），赋予蚀刻剂液体相对于浸入其中的材料棒的端部（170）的相对旋转运动，其中 所述赋予相对旋转运动包括赋予蚀刻剂液体相对于静态参考系统的旋转运动分量。

公开(公告)号：US20160139336A1

公开(公告)日：2016-05-19

申请号：US14937104

申请日：2015-11-10

Applicant: OFS Fitel, LLC

Inventor： Lalitkumar Bansal ,  Clifford E Headley

IPC: G02B6/255 ,  G02B6/04 ,  C03C25/00 ,  H01S3/094 ,  C03C25/68 ,  G02B6/40 ,  G02B6/245

CPC classification number: G02B6/2551 ,  C03C25/002 ,  C03C25/005 ,  C03C25/68 ,  G02B6/04 ,  G02B6/245 ,  G02B6/2552 ,  G02B6/40 ,  H01S3/094053 ,  H01S3/094057 ,  H01S3/094069 ,  H01S3/09415

Abstract: A high efficiency optical combiner minimizes core region distortions in the area where fusion splicing between an input tapered fiber bundle (or any other type of “cladding-less” input fiber) and output fiber are joined. The thickness of the output fiber's glass cladding layer in the splice region is reduced (if not removed altogether) so that a core-to-core splice is formed and any necked-down region where the glass flows to join the core regions (while also joining the outer diameters) is essentially eliminated. The reduction of distortions in the core region of the splice improves the transmission efficiency between an input tapered fiber bundle and output fiber, reaching a level of about 99%. This high efficiency optical combiner is particularly well-suited for applications where a number of pump sources are combined and applied as an input to a fiber laser or amplifier.

Abstract translation: 高效率的光合并器将输入锥形光纤束（或任何其它类型的“无包层”输入光纤）和输出光纤之间的熔接连接在一起的区域中的核心区域失真最小化。 接合区域中的输出光纤玻璃包覆层的厚度减小（如果不完全去除），从而形成芯 - 芯接头和玻璃流动以连接芯部区域的任何颈缩区域（同时也 连接外径）基本消除。 接合芯芯区域中的失真减小提高了输入锥形光纤束与输出光纤之间的传输效率，达到了约99％的水平。 这种高效率光学组合器特别适合于将多个泵浦光源组合并应用于光纤激光器或放大器的输入的应用。

公开(公告)号：US20160091479A1

公开(公告)日：2016-03-31

申请号：US14809972

申请日：2015-07-27

Applicant: Fluidigm Corporation

Inventor： Hany Nassef ,  Geoffrey Facer ,  Marc Unger

IPC: G01N33/487 ,  G01N15/12 ,  G01N15/10

CPC classification number: C03C25/68 ,  B01L3/502707 ,  B01L2300/0645 ,  B01L2300/0816 ,  B01L2300/123 ,  B01L2400/0481 ,  B01L2400/0655 ,  G01N15/1031 ,  G01N15/12 ,  G01N27/00 ,  G01N27/60 ,  G01N33/48707 ,  G01N33/48721 ,  G01N2015/1087 ,  Y10T436/2575

Abstract: The presence of a detectable entity within a detection volume of a microfabricated elastomeric structure is sensed through a change in the electrical or magnetic environment of the detection volume. In embodiments utilizing electronic detection, an electric field is applied to the detection volume and a change in impedance, current, or combined impedance and current due to the presence of the detectable entity is measured. In embodiments utilizing magnetic detection, the magnetic properties of a magnetized detected entity alter the magnetic field of the detection volume. This changed magnetic field induces a current which can reveal the detectable entity. The change in resistance of a magnetoresistive element may also reveal the passage of a magnetized detectable entity.

Abstract translation: 通过检测体积的电气或磁环境的变化来检测在微制造弹性体结构的检测体积内的可检测实体的存在。 在利用电子检测的实施例中，对检测体积施加电场，并且测量由于可检测实体的存在引起的阻抗，电流或组合阻抗和电流的变化。 在利用磁检测的实施例中，磁化检测实体的磁性改变了检测体积的磁场。 这种改变的磁场诱发可以揭示可检测实体的电流。 磁阻元件的电阻变化也可以揭示磁化的可检测实体的通过。