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GB2219166A - Fibre optic communication system for use in hazardous environments - Google Patents

Fibre optic communication system for use in hazardous environments

Info

Publication number
GB2219166A
GB2219166A GB8909039A GB8909039A GB2219166A GB 2219166 A GB2219166 A GB 2219166A GB 8909039 A GB8909039 A GB 8909039A GB 8909039 A GB8909039 A GB 8909039A GB 2219166 A GB2219166 A GB 2219166A
Authority
GB
United Kingdom
Prior art keywords
station
remote station
communication system
fibre optic
main station
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.)
Granted
Application number
GB8909039A
Other versions
GB2219166B (en
GB8909039D0 (en
Inventor
Roger John Hicks
Leonard Edward Virr
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.)
UK Secretary of State for Defence
Original Assignee
UK Secretary of State for Defence
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 UK Secretary of State for Defence filed Critical UK Secretary of State for Defence
Publication of GB8909039D0 publication Critical patent/GB8909039D0/en
Publication of GB2219166A publication Critical patent/GB2219166A/en
Application granted granted Critical
Publication of GB2219166B publication Critical patent/GB2219166B/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H04B10/25—Arrangements specific to fibre transmission
    • H04B10/2587—Arrangements specific to fibre transmission using a single light source for multiple stations

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Optical Communication System (AREA)
  • Glass Compositions (AREA)
  • Mechanical Means For Catching Fish (AREA)

Abstract

A fibre optic communication system for communication between a main station and a remote station includes a downlink for communication from the main station to the remote station and an uplink to enable to remote station to communicate with the main station. The downlink includes one or more optical sources (12) at the main station to provide one or more light beams (11) which are modulated to carry a signal which is then transmitted to the remote station and displayed. The uplink is formed by modulation at the remote station of a light beam (2) transmitted from a source (24) at the main station, along an optical fibre (25), to the remote station. The modulated beam is transmitted back to the main station and decoded by comparison with the unmodulated beam. The communication system has zero or very low magnetic and electrical signatures at the remote station.
GB8909039A 1986-11-03 1987-11-03 Fibre optic communication system for use in hazardous environments Expired GB2219166B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8626224A GB8626224D0 (en) 1986-11-03 1986-11-03 Fibre optic communication system
PCT/GB1987/000774 WO1988003730A1 (en) 1986-11-03 1987-11-03 Fibre optic communication system for use in hazardous environments

Publications (3)

Publication Number Publication Date
GB8909039D0 GB8909039D0 (en) 1989-08-02
GB2219166A true GB2219166A (en) 1989-11-29
GB2219166B GB2219166B (en) 1990-09-12

Family

ID=10606719

Family Applications (2)

Application Number Title Priority Date Filing Date
GB8626224A Pending GB8626224D0 (en) 1986-11-03 1986-11-03 Fibre optic communication system
GB8909039A Expired GB2219166B (en) 1986-11-03 1987-11-03 Fibre optic communication system for use in hazardous environments

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB8626224A Pending GB8626224D0 (en) 1986-11-03 1986-11-03 Fibre optic communication system

Country Status (3)

Country Link
AU (1) AU8156787A (en)
GB (2) GB8626224D0 (en)
WO (1) WO1988003730A1 (en)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7656535B2 (en) 2004-12-17 2010-02-02 British Telecommunications Public Limited Company Optical system and method for inferring a disturbance
US7667849B2 (en) 2003-09-30 2010-02-23 British Telecommunications Public Limited Company Optical sensor with interferometer for sensing external physical disturbance of optical communications link
US7697795B2 (en) 2005-03-04 2010-04-13 British Telecommunications Public Limited Company Acoustic modulation
US7755971B2 (en) 2005-03-04 2010-07-13 British Telecommunications Public Limited Company Sensing system
US7796896B2 (en) 2003-09-30 2010-09-14 British Telecommunications Plc Secure optical communication
US7817279B2 (en) 2006-02-24 2010-10-19 British Telecommunications Public Limited Company Sensing a disturbance
US7961331B2 (en) 2006-02-24 2011-06-14 British Telecommunications Public Limited Company Sensing a disturbance along an optical path
US7995197B2 (en) 2004-09-30 2011-08-09 British Telecommunications Public Limited Company Distributed backscattering
US8000609B2 (en) 2005-04-14 2011-08-16 British Telecommunications Public Limited Company Communicating or reproducing an audible sound
US8003932B2 (en) 2005-06-02 2011-08-23 British Telecommunications Public Limited Company Evaluating the position of a disturbance
US8027584B2 (en) 2006-02-24 2011-09-27 British Telecommunications Public Limited Company Sensing a disturbance
US8045174B2 (en) 2004-12-17 2011-10-25 British Telecommunications Public Limited Company Assessing a network
US8396360B2 (en) 2005-03-31 2013-03-12 British Telecommunications Public Limited Company Communicating information
US8670662B2 (en) 2006-04-03 2014-03-11 British Telecommunications Public Limited Company Evaluating the position of an optical fiber disturbance

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2654275B1 (en) * 1989-11-09 1994-07-29 Dassault Electronique METHOD AND DEVICE FOR TRANSMITTING AN ELECTROMAGNETIC SIGNAL IN AN OPTICAL FIBER.
GB0407386D0 (en) 2004-03-31 2004-05-05 British Telecomm Monitoring a communications link
WO2006035198A1 (en) 2004-09-30 2006-04-06 British Telecommunications Public Limited Company Identifying or locating waveguides

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1985005530A1 (en) * 1984-06-06 1985-12-19 Ncr Corporation Bidirectional optical data communications system

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1106485A (en) * 1978-10-03 1981-08-04 Northern Telecom Limited Optical transducer

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1985005530A1 (en) * 1984-06-06 1985-12-19 Ncr Corporation Bidirectional optical data communications system

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
CA1106485 *
Frequenz, vo *

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7667849B2 (en) 2003-09-30 2010-02-23 British Telecommunications Public Limited Company Optical sensor with interferometer for sensing external physical disturbance of optical communications link
US7796896B2 (en) 2003-09-30 2010-09-14 British Telecommunications Plc Secure optical communication
US7995197B2 (en) 2004-09-30 2011-08-09 British Telecommunications Public Limited Company Distributed backscattering
US7656535B2 (en) 2004-12-17 2010-02-02 British Telecommunications Public Limited Company Optical system and method for inferring a disturbance
US8045174B2 (en) 2004-12-17 2011-10-25 British Telecommunications Public Limited Company Assessing a network
US7697795B2 (en) 2005-03-04 2010-04-13 British Telecommunications Public Limited Company Acoustic modulation
US7755971B2 (en) 2005-03-04 2010-07-13 British Telecommunications Public Limited Company Sensing system
US8396360B2 (en) 2005-03-31 2013-03-12 British Telecommunications Public Limited Company Communicating information
US8000609B2 (en) 2005-04-14 2011-08-16 British Telecommunications Public Limited Company Communicating or reproducing an audible sound
US8003932B2 (en) 2005-06-02 2011-08-23 British Telecommunications Public Limited Company Evaluating the position of a disturbance
US8027584B2 (en) 2006-02-24 2011-09-27 British Telecommunications Public Limited Company Sensing a disturbance
US7961331B2 (en) 2006-02-24 2011-06-14 British Telecommunications Public Limited Company Sensing a disturbance along an optical path
US7817279B2 (en) 2006-02-24 2010-10-19 British Telecommunications Public Limited Company Sensing a disturbance
US8670662B2 (en) 2006-04-03 2014-03-11 British Telecommunications Public Limited Company Evaluating the position of an optical fiber disturbance

Also Published As

Publication number Publication date
GB8626224D0 (en) 1986-12-03
GB2219166B (en) 1990-09-12
AU8156787A (en) 1988-06-01
GB8909039D0 (en) 1989-08-02
WO1988003730A1 (en) 1988-05-19

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20051103