GB8623311D0 - Optical fibre transmission system - Google Patents

Optical fibre transmission system

Info

Publication number
GB8623311D0
GB8623311D0 GB8623311A GB8623311A GB8623311D0 GB 8623311 D0 GB8623311 D0 GB 8623311D0 GB 8623311 A GB8623311 A GB 8623311A GB 8623311 A GB8623311 A GB 8623311A GB 8623311 D0 GB8623311 D0 GB 8623311D0
Authority
GB
United Kingdom
Prior art keywords
transmission system
optical fibre
fibre transmission
optical
transmission
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.)
Withdrawn
Application number
GB8623311A
Other versions
GB2195508A (en
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 GB8623311A priority Critical patent/GB2195508A/en
Publication of GB8623311D0 publication Critical patent/GB8623311D0/en
Publication of GB2195508A publication Critical patent/GB2195508A/en
Withdrawn legal-status Critical Current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
    • H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
    • H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
    • H04B10/079—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using measurements of the data signal
    • H04B10/0795—Performance monitoring; Measurement of transmission parameters
    • H04B10/07955—Monitoring or measuring power
    • 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
    • H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
    • H04B10/077—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using a supervisory or additional signal
    • 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
    • H04B10/50—Transmitters
    • H04B10/501—Structural aspects
    • H04B10/503—Laser transmitters
    • 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
    • H04B10/50—Transmitters
    • H04B10/564—Power control

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Optics & Photonics (AREA)
  • Optical Communication System (AREA)
GB8623311A 1986-09-27 1986-09-27 Optical fibre transmission system Withdrawn GB2195508A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8623311A GB2195508A (en) 1986-09-27 1986-09-27 Optical fibre transmission system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8623311A GB2195508A (en) 1986-09-27 1986-09-27 Optical fibre transmission system

Publications (2)

Publication Number Publication Date
GB8623311D0 true GB8623311D0 (en) 1986-10-29
GB2195508A GB2195508A (en) 1988-04-07

Family

ID=10604933

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8623311A Withdrawn GB2195508A (en) 1986-09-27 1986-09-27 Optical fibre transmission system

Country Status (1)

Country Link
GB (1) GB2195508A (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02209030A (en) * 1989-02-09 1990-08-20 Fujitsu Ltd Optical transmission line equipment
GB2228846B (en) * 1989-03-01 1993-08-18 Stc Plc Fibre optic transmission system
DE3907495A1 (en) * 1989-03-08 1990-09-13 Standard Elektrik Lorenz Ag OPTICAL MESSAGE TRANSMISSION SYSTEM FOR THE SUBSCRIBER AREA
US5136410A (en) * 1990-01-09 1992-08-04 Ibm Corporation Optical fiber link control safety system
US5229593A (en) * 1991-10-08 1993-07-20 International Business Machines Corporation Apparatus and method for safe, free space laser communication
DE4321601A1 (en) * 1993-06-29 1995-01-19 Siemens Ag Automatic laser shutdown with protection against unintentional restart
CA2182450A1 (en) * 1995-08-07 1997-02-08 Jds Uniphase Inc. Circuit and method of testing for silent faults in a bi-directional optical communication system
US6141128A (en) * 1997-12-15 2000-10-31 Astroterra Corporation Buffered laser communication link
EP1137205A1 (en) * 2000-03-23 2001-09-26 Lucent Technologies Inc. An apparatus and method for identifying active fibers in a fiber distribution frame
US7203424B2 (en) * 2000-10-13 2007-04-10 Kiribati Wireless Ventures Llc Automatic laser power control in an optical communication system

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4435850A (en) * 1982-02-16 1984-03-06 International Telephone And Telegraph Corporation Secure fiber optic data transmission system

Also Published As

Publication number Publication date
GB2195508A (en) 1988-04-07

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)