GB2167261B - Optical fibres - Google Patents

Optical fibres

Info

Publication number
GB2167261B
GB2167261B GB8429078A GB8429078A GB2167261B GB 2167261 B GB2167261 B GB 2167261B GB 8429078 A GB8429078 A GB 8429078A GB 8429078 A GB8429078 A GB 8429078A GB 2167261 B GB2167261 B GB 2167261B
Authority
GB
United Kingdom
Prior art keywords
optical fibres
fibres
optical
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
Application number
GB8429078A
Other versions
GB8429078D0 (en
GB2167261A (en
Inventor
George James Cannell
David James Struthers
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.)
STC PLC
Original Assignee
STC PLC
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 STC PLC filed Critical STC PLC
Priority to GB8429078A priority Critical patent/GB2167261B/en
Publication of GB8429078D0 publication Critical patent/GB8429078D0/en
Publication of GB2167261A publication Critical patent/GB2167261A/en
Application granted granted Critical
Publication of GB2167261B publication Critical patent/GB2167261B/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
    • G01M11/30—Testing of optical devices, constituted by fibre optics or optical waveguides
    • G01M11/31—Testing of optical devices, constituted by fibre optics or optical waveguides with a light emitter and a light receiver being disposed at the same side of a fibre or waveguide end-face, e.g. reflectometers
    • G01M11/3109—Reflectometers detecting the back-scattered light in the time-domain, e.g. OTDR
    • G01M11/3145—Details of the optoelectronics or data analysis
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
    • G01S17/88—Lidar systems specially adapted for specific applications
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
    • H04B10/071—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using a reflected signal, e.g. using optical time domain reflectometers [OTDR]
GB8429078A 1984-11-16 1984-11-16 Optical fibres Expired GB2167261B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8429078A GB2167261B (en) 1984-11-16 1984-11-16 Optical fibres

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8429078A GB2167261B (en) 1984-11-16 1984-11-16 Optical fibres

Publications (3)

Publication Number Publication Date
GB8429078D0 GB8429078D0 (en) 1984-12-27
GB2167261A GB2167261A (en) 1986-05-21
GB2167261B true GB2167261B (en) 1988-04-27

Family

ID=10569868

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8429078A Expired GB2167261B (en) 1984-11-16 1984-11-16 Optical fibres

Country Status (1)

Country Link
GB (1) GB2167261B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5008545A (en) * 1989-10-23 1991-04-16 Tektronix, Inc. High resolution optical fault locator
GB2306825B (en) * 1995-10-18 2000-03-15 Univ Heriot Watt A laser ranger based on time correlated single photon counting
GB2364840A (en) * 2000-07-12 2002-02-06 Secr Defence Analysis of optical systems using lidar
WO2004090499A1 (en) * 2003-04-10 2004-10-21 Luciol Instruments Sa High resolution otdr for loss measurements
WO2006066459A1 (en) * 2004-12-23 2006-06-29 Beijing Yuande Bio-Medical Engineering Co., Ltd. A standard light source for a single photon counter
CN100494991C (en) * 2004-12-23 2009-06-03 北京源德生物医学工程有限公司 Standard light source for single photon counting instrument

Also Published As

Publication number Publication date
GB8429078D0 (en) 1984-12-27
GB2167261A (en) 1986-05-21

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Legal Events

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