公开(公告)号：US12085759B2

公开(公告)日：2024-09-10

申请号：US17636397

申请日：2020-08-20

申请人： UNIVERSITÉ LAVAL

发明人： Charles Matte-Breton ,  Sophie Larochelle ,  Simon Duval ,  Réal Vallée ,  Martin Bernier

IPC分类号： G02B6/28

CPC分类号： G02B6/2821

摘要： There is described a method of optically coupling a first optical fiber and a second optical fiber to one another. The method generally has a step of bringing a free end of the first optical fiber, the second optical fiber and liquid in close proximity to one another within a coupling region, the free end of the first optical fiber having a dimension below a critical dimension, the free end of the first optical fiber moving within said liquid to contact the second optical fiber along a given coupling length, said contact optically coupling the free end of the first optical fiber and the second optical fiber to one another.

公开(公告)号：US20230384512A1

公开(公告)日：2023-11-30

申请号：US18326562

申请日：2023-05-31

申请人： NKT PHOTONICS A/S

发明人： Johannes WEIRICH ,  Martin Dybendal MAACK

IPC分类号： G02B6/02 ,  G02B6/024 ,  A61B5/00 ,  G01B9/02091 ,  G02B6/28 ,  G02B6/293 ,  G02B21/00 ,  G02B23/24

CPC分类号： G02B6/02357 ,  G02B6/02347 ,  G02B6/024 ,  A61B5/0066 ,  G01B9/02091 ,  G02B6/02361 ,  G02B6/2821 ,  G02B6/2938 ,  G02B6/29389 ,  G02B21/0032 ,  G02B23/2469 ,  H01S3/2308

摘要： A delivery fiber assembly suitable for delivering broad band light and including a delivery fiber and a connector member. The delivery fiber has a length, an input end for launching light, and a delivery end. The delivery fiber includes along its length a core region and a cladding region surrounding the core region, the cladding region includes a cladding background material having a refractive index Nbg and a plurality of microstructures in the form of inclusions of solid material having refractive index up to Ninc and extending in the length of the longitudinal axis of the delivery fiber, wherein Ninc

公开(公告)号：US11822126B2

公开(公告)日：2023-11-21

申请号：US17654000

申请日：2022-03-08

申请人： Cisco Technology, Inc.

发明人： Tao Ling ,  Shiyi Chen

IPC分类号： G02B6/28 ,  G02B6/125

CPC分类号： G02B6/2821 ,  G02B6/125

摘要： Embodiments herein describe a waveguide crossing that permits at least two optical signals to cross in two different directions. For example, one optical signal can propagate from left to right through the center of the waveguide crossing at the same time a second optical signal propagates up and down through the center of the crossing. In one embodiment, a circular disc is disposed at the center of the waveguide crossing through which the two (or more) optical signals pass. The shape of the circular disc can provide low insertion loss as the respective optical signals propagate between respective pairs of waveguides, as well as minimize cross talk between the two optical signals.

公开(公告)号：US20230280536A1

公开(公告)日：2023-09-07

申请号：US18016438

申请日：2020-07-21

申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION

发明人： Tatsuya FUJIMOTO ,  Hidenobu HIROTA ,  Takui UEMATSU ,  Tomohiro KAWANO ,  Hiroyuki IIDA ,  Ryo KOYAMA ,  Tetsuya MANABE ,  Kazunori KATAYAMA

IPC分类号： G02B6/28

CPC分类号： G02B6/2821

摘要： An object of the present disclosure is to provide an optical coupling device capable of controlling a coupling index of optical coupling between two optical fibers for coupling. An optical coupling device of the present disclosure includes two optical fibers for coupling having a core and a clad, and a refractive index variable member to change the refractive index by irradiation with light between the two optical fibers for coupling.

公开(公告)号：US20190193196A1

公开(公告)日：2019-06-27

申请号：US16213616

申请日：2018-12-07

申请人： Lumentum Operations LLC

发明人： Changgeng YE ,  Hongbo YU ,  Martin H. MUENDEL

IPC分类号： B23K26/035 ,  G02B6/28 ,  C03C25/105

CPC分类号： B23K26/035 ,  C03C25/105 ,  G02B6/2821

摘要： A method of manufacturing a side-coupling structure, associated with coupling an aiming beam from an aiming beam fiber into a laser beam fiber, may include removing a coating from a section of the laser beam fiber and removing a coating from a section of the aiming beam fiber. The method may further include bringing the section of the aiming beam fiber in physical contact with the section of the laser beam fiber in order to create the side-coupling structure. The method may further include recoating the section of the laser beam fiber and the section of the aiming beam fiber in order to coat the side-coupling structure.

公开(公告)号：US20180224609A1

公开(公告)日：2018-08-09

申请号：US15889810

申请日：2018-02-06

申请人： CommScope Technologies LLC

发明人： Yu Lu ,  Michael Aaron Kadar-Kallen

IPC分类号： G02B6/38 ,  G02B6/028 ,  G02B6/14 ,  G02B6/28

CPC分类号： G02B6/3845 ,  G02B6/0286 ,  G02B6/14 ,  G02B6/2821 ,  G02B6/3846 ,  G02B6/3895

摘要： A fiber optic cable and connector assembly is disclosed. The assembly includes a cable optical fiber, a ferrule, a stub optical fiber having a first portion supported within the ferrule a second portion the projects rearwardly the ferrule and a signal modification structure optically coupled between the stub optical fiber and the cable optical fiber.

公开(公告)号：US20180212395A1

公开(公告)日：2018-07-26

申请号：US15924090

申请日：2018-03-16

申请人： NLIGHT, INC.

发明人： Dahv A.V. Kliner

IPC分类号： H01S3/13 ,  H01S3/067 ,  H01S3/094 ,  H01S3/0941 ,  H01S3/115 ,  H01S3/11

CPC分类号： H01S3/1305 ,  G02B6/02 ,  G02B6/02042 ,  G02B6/0219 ,  G02B6/028 ,  G02B6/0286 ,  G02B6/255 ,  G02B6/262 ,  G02B6/2821 ,  G02B6/2856 ,  G02F1/3523 ,  H01S3/067 ,  H01S3/0675 ,  H01S3/094003 ,  H01S3/0941 ,  H01S3/102 ,  H01S3/106 ,  H01S3/1109 ,  H01S3/115 ,  H01S3/121

摘要： Methods, apparatus, and systems for active saturable absorbance of an optical beam. An active saturable absorber may comprise an optical input to receive an optical beam, and one or more lengths of fiber between the optical input and an optical output. At least one of the lengths of fiber comprises a confinement region that is optically coupled to the output. The active saturable absorber may further comprise an optical detector to sense a characteristic of the optical beam, such as power. The active saturable absorber may further comprise a perturbation device to modulate, through action upon the one or more lengths of fiber, a transmittance of the beam through a fiber confinement region from a lower transmittance level to a higher transmittance level based on an indication of the characteristic sensed while the transmittance level is low.

公开(公告)号：US20180205195A1

公开(公告)日：2018-07-19

申请号：US15924096

申请日：2018-03-16

申请人： NLIGHT, INC.

发明人： Dahv A.V. Kliner ,  Roger Farrow

IPC分类号： H01S3/067 ,  H01S3/094 ,  H01S3/0941 ,  H01S3/11 ,  H01S3/115

CPC分类号： H01S3/067 ,  G02B6/02 ,  G02B6/02042 ,  G02B6/0219 ,  G02B6/028 ,  G02B6/0286 ,  G02B6/255 ,  G02B6/262 ,  G02B6/2821 ,  G02B6/2856 ,  H01S3/0675 ,  H01S3/094003 ,  H01S3/0941 ,  H01S3/102 ,  H01S3/106 ,  H01S3/1109 ,  H01S3/115 ,  H01S3/121

摘要： Methods, apparatus, and systems for modulation of a laser beam. An optical modulator may comprise an optical input to receive an optical beam, and one or more lengths of fiber between the optical input and an optical output. At least one of the lengths of fiber comprises a confinement region that is optically coupled to the output. The optical modulator may further comprise a perturbation device to modulate, through action upon the one or more lengths of fiber, a transmittance of the beam through the confinement region from a first transmittance level at a first time instance to a second transmittance level at a second time instance. The optical modulator may further comprise a controller input coupled to the perturbation device, wherein the perturbation device is to act upon the one or more lengths of fiber in response to a control signal received through the controller input.

公开(公告)号：US20180059425A1

公开(公告)日：2018-03-01

申请号：US15686096

申请日：2017-08-24

申请人： Chris A. Rivera ,  Dahv A.V. Kliner ,  Joseph Emery

发明人： Chris A. Rivera ,  Dahv A.V. Kliner ,  Joseph Emery

IPC分类号： G02B27/10

CPC分类号： G02B27/10 ,  G01M11/33 ,  G02B6/02042 ,  G02B6/04 ,  G02B6/14 ,  G02B6/245 ,  G02B6/2551 ,  G02B6/2558 ,  G02B6/2773 ,  G02B6/2821 ,  G02B6/4296 ,  H01S3/0064 ,  H01S3/0407 ,  H01S3/06754 ,  H01S3/06783 ,  H01S3/1305

摘要： An apparatus includes a plurality of input fibers including one or more signal fibers and one or more beam dump fibers, a signal combiner having an input end coupled to the plurality of input fibers so as to couple portions of one or more signal beams respectively propagating in one or more of the signal fibers to form a combiner beam, an output fiber coupled to an output end of the signal combiner so as to receive the combiner beam, and a beam dump coupled to at least one of the one or more beam dump fibers so as to receive a light beam propagating from the output fiber that is associated with the combiner beam.

公开(公告)号：US09857534B2

公开(公告)日：2018-01-02

申请号：US14422926

申请日：2013-08-13

申请人： FUJIKURA LTD.

发明人： Hiroyuki Kusaka ,  Kensuke Ogawa ,  Kazuhiro Goi

IPC分类号： G02B6/28 ,  G02B6/125 ,  G02B6/14 ,  G02F1/225 ,  G02B6/122 ,  G02B6/293 ,  G02F1/21

CPC分类号： G02B6/2821 ,  G02B6/122 ,  G02B6/125 ,  G02B6/14 ,  G02B6/2813 ,  G02B6/2935 ,  G02F1/225 ,  G02F1/2255 ,  G02F2001/212

摘要： An optical waveguide device includes: a mode splitter including a main waveguide in which lights can be propagated in at least two propagation modes with different propagation orders and a subsidiary waveguide which includes a coupling section disposed in parallel with the main waveguide at a certain distance away from the main waveguide so as to constitute a directional coupler and is capable of splitting at least one propagation mode out of the two or more propagation modes from the main waveguide. Also, ncore/ncladding which is a refractive index ratio between a core and a cladding which constitute the main waveguide and the subsidiary waveguide is in a range of 101% to 250%.