GB8612422D0 - Fibre optic communication systems - Google Patents

Fibre optic communication systems

Info

Publication number
GB8612422D0
GB8612422D0 GB868612422A GB8612422A GB8612422D0 GB 8612422 D0 GB8612422 D0 GB 8612422D0 GB 868612422 A GB868612422 A GB 868612422A GB 8612422 A GB8612422 A GB 8612422A GB 8612422 D0 GB8612422 D0 GB 8612422D0
Authority
GB
United Kingdom
Prior art keywords
communication systems
fibre optic
optic communication
fibre
systems
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Withdrawn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
GB868612422A
Other versions
GB2175766A (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.)
PA Consulting Services Ltd
Original Assignee
PA Consulting Services 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 PA Consulting Services Ltd filed Critical PA Consulting Services Ltd
Publication of GB8612422D0 publication Critical patent/GB8612422D0/en
Publication of GB2175766A publication Critical patent/GB2175766A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/09—Processes or apparatus for excitation, e.g. pumping
    • H01S3/091—Processes or apparatus for excitation, e.g. pumping using optical pumping
    • H01S3/0915—Processes or apparatus for excitation, e.g. pumping using optical pumping by incoherent light
    • H01S3/0933—Processes or apparatus for excitation, e.g. pumping using optical pumping by incoherent light of a semiconductor, e.g. light emitting diode
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
    • H01S3/06—Construction or shape of active medium
    • H01S3/063—Waveguide lasers, i.e. whereby the dimensions of the waveguide are of the order of the light wavelength
    • H01S3/067—Fibre lasers
    • H01S3/06754—Fibre amplifiers

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Optics & Photonics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Lasers (AREA)
  • Optical Communication System (AREA)
GB08612422A 1985-05-22 1986-05-22 Fibre optic communication systems Withdrawn GB2175766A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB858512980A GB8512980D0 (en) 1985-05-22 1985-05-22 Fibre optic transmissions systems

Publications (2)

Publication Number Publication Date
GB8612422D0 true GB8612422D0 (en) 1986-07-02
GB2175766A GB2175766A (en) 1986-12-03

Family

ID=10579535

Family Applications (3)

Application Number Title Priority Date Filing Date
GB858512980A Pending GB8512980D0 (en) 1985-05-22 1985-05-22 Fibre optic transmissions systems
GB868612164A Pending GB8612164D0 (en) 1985-05-22 1986-05-19 Fibre optic communication systems
GB08612422A Withdrawn GB2175766A (en) 1985-05-22 1986-05-22 Fibre optic communication systems

Family Applications Before (2)

Application Number Title Priority Date Filing Date
GB858512980A Pending GB8512980D0 (en) 1985-05-22 1985-05-22 Fibre optic transmissions systems
GB868612164A Pending GB8612164D0 (en) 1985-05-22 1986-05-19 Fibre optic communication systems

Country Status (3)

Country Link
EP (1) EP0222866A1 (en)
GB (3) GB8512980D0 (en)
WO (1) WO1986007221A1 (en)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5282079A (en) * 1988-06-10 1994-01-25 Pirelli General Plc Optical fibre amplifier
AU629844B2 (en) * 1988-07-04 1992-10-15 Phased Array Lasers Pty. Ltd. End pumped, looped fibre bundle, phased array laser oscillator/amplifier
WO1990000320A1 (en) * 1988-07-04 1990-01-11 Phased Array Lasers Pty Ltd Face pumped, looped fibre bundle, phased-array laser oscillator
GB2231168A (en) * 1989-04-27 1990-11-07 Stc Plc Optical fibres
GB2231169A (en) * 1989-04-27 1990-11-07 Stc Plc Optical fibres
CA2058957C (en) * 1989-06-22 1999-05-04 Lutz Christian Blank Optical time domain reflectometry
CA2019253C (en) * 1989-06-23 1994-01-11 Shinya Inagaki Optical fiber amplifier
AU640674B2 (en) * 1989-07-13 1993-09-02 British Telecommunications Public Limited Company Optical communications network
US5204923A (en) * 1989-07-17 1993-04-20 Pirelli Cavi S.P.A. Unit for amplifying light signals in optical fiber transmission lines
IT1231208B (en) * 1989-07-17 1991-11-23 Pirelli Cavi Spa UNIT FOR THE AMPLIFICATION OF LIGHT SIGNALS IN FIBER OPTIC TRANSMISSION LINES.
JP2786725B2 (en) * 1989-07-20 1998-08-13 住友電気工業株式会社 Optical fiber and fiber optical active device
GB8919799D0 (en) * 1989-09-01 1989-10-18 British Telecomm Optical coupler
WO1991005380A1 (en) * 1989-09-26 1991-04-18 Australian Electro Optics Pty. Ltd. Folded bundle, laser fibre, phase-locked laser oscillator
US5058974A (en) * 1989-10-06 1991-10-22 At&T Bell Laboratories Distributed amplification for lightwave transmission system
GB8928237D0 (en) * 1989-12-14 1990-02-21 British Telecomm Lossless optical component
WO1991012509A1 (en) * 1990-02-15 1991-08-22 British Telecommunications Public Limited Company Optical test apparatus
USRE35697E (en) * 1990-07-16 1997-12-23 Pirelli Cavi S.P.A. Unit for amplifying light signals in optical fiber transmission lines
GB2249660B (en) * 1990-11-09 1994-07-06 Stc Plc Amplified optical fibre systems
DE4038503C2 (en) * 1990-12-03 1997-04-17 Kommunikations Elektronik Network for the transmission of optical information signals
US5082343A (en) * 1990-12-20 1992-01-21 At&T Bell Laboratories Isolated optical coupler
EP0530025B1 (en) * 1991-08-29 1997-10-29 Nec Corporation Light receiving module
JP2808972B2 (en) * 1992-02-27 1998-10-08 日本電気株式会社 Optical amplifier
JP3284507B2 (en) * 1993-06-28 2002-05-20 富士通株式会社 Optical transmitting device and optical amplifying device for optical communication system
JPH08304664A (en) * 1995-05-09 1996-11-22 Furukawa Electric Co Ltd:The Wavelength demultiplexing element
DE19517952A1 (en) * 1995-05-16 1996-11-21 Ams Optotech Vertrieb Gmbh Optical amplifier with praseodymium-doped optical fiber
JPH10301492A (en) 1997-04-23 1998-11-13 Sony Corp Enciphering device and method therefor, decoding device and method therefor, and information processing device and method therefor
FR2769992B1 (en) * 1997-10-21 2000-01-28 Thomson Csf POLARIZATION MODULATED OPTICAL DEVICE FOR MEASURING DISTANCE AND / OR OBJECT SPEED

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1344970A (en) * 1961-10-27 1963-12-06 American Optical Corp Light energy generators and amplifiers
US3571737A (en) * 1968-06-07 1971-03-23 Bell Telephone Labor Inc Transmission line
SE358775B (en) * 1968-07-06 1973-08-06 Nippon Selfoc Co Ltd
US3950707A (en) * 1973-04-13 1976-04-13 Canadian Patents And Development Limited Quantum amplifier having passive core and active cladding providing signal gain by interaction of evanescent-wave components of signal and pump beams propagating along the core

Also Published As

Publication number Publication date
GB2175766A (en) 1986-12-03
GB8612164D0 (en) 1986-06-25
GB8512980D0 (en) 1985-06-26
EP0222866A1 (en) 1987-05-27
WO1986007221A1 (en) 1986-12-04

Similar Documents

Publication Publication Date Title
GB8612422D0 (en) Fibre optic communication systems
EP0232319A4 (en) Optical communications systems
EG17449A (en) Optical fiber distrition network
GB2161612B (en) Optical fibre transmission systems
GB8626544D0 (en) Fiber optic dispersion
GB8603389D0 (en) Fibre optic connector
EP0170208A3 (en) Optical communication system
GB2184859B (en) Fibre optic devices
EP0222384A3 (en) Bidirectional optical communication system
GB8525413D0 (en) Optical communications system
GB8526942D0 (en) Optical fibre network
GB8522316D0 (en) Optical fibre termination
GB8626224D0 (en) Fibre optic communication system
GB8426008D0 (en) Optical communication systems
GB8629919D0 (en) Optical fibre units
GB2169464B (en) Optical fibre transmission systems
GB8603638D0 (en) Optical fibre
DE3662962D1 (en) Optical fibre networks
GB8520947D0 (en) Optical fibre
GB2199209B (en) Optical communication systems
GB8524742D0 (en) Fibre optic scanning systems
GB8400999D0 (en) Optical fibre communication systems
GB8528884D0 (en) Optical fibre termination
GB8520946D0 (en) Optical fibre
GB8622887D0 (en) Fibre optic assembly

Legal Events

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