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GB2262360B - Optical fibre terminations and laser doppler velocimeters employing such terminations - Google Patents

Optical fibre terminations and laser doppler velocimeters employing such terminations

Info

Publication number
GB2262360B
GB2262360B GB9225884A GB9225884A GB2262360B GB 2262360 B GB2262360 B GB 2262360B GB 9225884 A GB9225884 A GB 9225884A GB 9225884 A GB9225884 A GB 9225884A GB 2262360 B GB2262360 B GB 2262360B
Authority
GB
United Kingdom
Prior art keywords
terminations
employing
optical fibre
laser doppler
doppler velocimeters
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
GB9225884A
Other versions
GB2262360A (en
GB9225884D0 (en
Inventor
Michael M Ross
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Alstom Power UK Holdings Ltd
Original Assignee
European Gas Turbines Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by European Gas Turbines Ltd filed Critical European Gas Turbines Ltd
Publication of GB9225884D0 publication Critical patent/GB9225884D0/en
Publication of GB2262360A publication Critical patent/GB2262360A/en
Application granted granted Critical
Publication of GB2262360B publication Critical patent/GB2262360B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G02B6/4201—Packages, e.g. shape, construction, internal or external details
    • G02B6/4219—Mechanical fixtures for holding or positioning the elements relative to each other in the couplings; Alignment methods for the elements, e.g. measuring or observing methods especially used therefor
    • G02B6/422—Active alignment, i.e. moving the elements in response to the detected degree of coupling or position of the elements
    • G02B6/4221—Active alignment, i.e. moving the elements in response to the detected degree of coupling or position of the elements involving a visual detection of the position of the elements, e.g. by using a microscope or a camera
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/26—Optical coupling means
    • G02B6/32—Optical coupling means having lens focusing means positioned between opposed fibre ends
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G02B6/4296—Coupling light guides with opto-electronic elements coupling with sources of high radiant energy, e.g. high power lasers, high temperature light sources
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G02B6/4201—Packages, e.g. shape, construction, internal or external details
    • G02B6/4219—Mechanical fixtures for holding or positioning the elements relative to each other in the couplings; Alignment methods for the elements, e.g. measuring or observing methods especially used therefor
    • G02B6/422—Active alignment, i.e. moving the elements in response to the detected degree of coupling or position of the elements
    • G02B6/4227—Active alignment methods, e.g. procedures and algorithms

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Couplings Of Light Guides (AREA)
GB9225884A 1991-12-11 1992-12-11 Optical fibre terminations and laser doppler velocimeters employing such terminations Expired - Fee Related GB2262360B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB919126349A GB9126349D0 (en) 1991-12-11 1991-12-11 Optical fibre termination

Publications (3)

Publication Number Publication Date
GB9225884D0 GB9225884D0 (en) 1993-02-03
GB2262360A GB2262360A (en) 1993-06-16
GB2262360B true GB2262360B (en) 1995-04-05

Family

ID=10706106

Family Applications (2)

Application Number Title Priority Date Filing Date
GB919126349A Pending GB9126349D0 (en) 1991-12-11 1991-12-11 Optical fibre termination
GB9225884A Expired - Fee Related GB2262360B (en) 1991-12-11 1992-12-11 Optical fibre terminations and laser doppler velocimeters employing such terminations

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB919126349A Pending GB9126349D0 (en) 1991-12-11 1991-12-11 Optical fibre termination

Country Status (1)

Country Link
GB (2) GB9126349D0 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3127589B1 (en) * 2021-09-29 2024-08-16 Horiba France Sas Optical microscope comprising an opto-mechanical fine adjustment device and opto-mechanical adjustment method

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4824205A (en) * 1986-09-09 1989-04-25 Olympus Optical Co., Ltd. Apparatus for improving image formed by imaging optical system
US4842360A (en) * 1987-06-18 1989-06-27 Summit Technology, Inc. High energy laser-to-waveguide coupling devices and methods
WO1991002391A1 (en) * 1989-08-02 1991-02-21 Australian Electro Optics Pty. Ltd. A diode laser system emitting a high quality laser beam of circular cross-section perpendicular to the mounting base
US5044717A (en) * 1990-01-18 1991-09-03 Acculase, Inc. Method and apparatus for coupling high energy laser to fiberoptic waveguide
EP0497260A2 (en) * 1991-01-29 1992-08-05 HAAS-LASER GmbH Laser device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4824205A (en) * 1986-09-09 1989-04-25 Olympus Optical Co., Ltd. Apparatus for improving image formed by imaging optical system
US4842360A (en) * 1987-06-18 1989-06-27 Summit Technology, Inc. High energy laser-to-waveguide coupling devices and methods
WO1991002391A1 (en) * 1989-08-02 1991-02-21 Australian Electro Optics Pty. Ltd. A diode laser system emitting a high quality laser beam of circular cross-section perpendicular to the mounting base
US5044717A (en) * 1990-01-18 1991-09-03 Acculase, Inc. Method and apparatus for coupling high energy laser to fiberoptic waveguide
EP0497260A2 (en) * 1991-01-29 1992-08-05 HAAS-LASER GmbH Laser device

Also Published As

Publication number Publication date
GB2262360A (en) 1993-06-16
GB9126349D0 (en) 1992-02-12
GB9225884D0 (en) 1993-02-03

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20051211