GB2304248B - Bidirectional optical amplifier for wavelength-division multiplex optical system - Google Patents

Bidirectional optical amplifier for wavelength-division multiplex optical system

Info

Publication number
GB2304248B
GB2304248B GB9616518A GB9616518A GB2304248B GB 2304248 B GB2304248 B GB 2304248B GB 9616518 A GB9616518 A GB 9616518A GB 9616518 A GB9616518 A GB 9616518A GB 2304248 B GB2304248 B GB 2304248B
Authority
GB
United Kingdom
Prior art keywords
wavelength
division multiplex
optical system
bidirectional
optical amplifier
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
GB9616518A
Other versions
GB2304248A (en
GB9616518D0 (en
Inventor
Jamil Chawki
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.)
Orange SA
Original Assignee
France Telecom SA
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 France Telecom SA filed Critical France Telecom SA
Publication of GB9616518D0 publication Critical patent/GB9616518D0/en
Publication of GB2304248A publication Critical patent/GB2304248A/en
Application granted granted Critical
Publication of GB2304248B publication Critical patent/GB2304248B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • H04B10/29—Repeaters
    • H04B10/291—Repeaters in which processing or amplification is carried out without conversion of the main signal from optical form
    • H04B10/297—Bidirectional amplification
    • H04B10/2971—A single amplifier for both directions
    • 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
    • H01S3/10—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
    • H01S3/10007—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating in optical amplifiers
    • H01S3/10023—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating in optical amplifiers by functional association of additional optical elements, e.g. filters, gratings, reflectors
    • 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
    • H01S3/0675—Resonators including a grating structure, e.g. distributed Bragg reflectors [DBR] or distributed feedback [DFB] fibre lasers
    • 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
    • H01S3/06787—Bidirectional amplifier
    • 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
    • H01S3/23—Arrangements of two or more lasers not provided for in groups H01S3/02 - H01S3/22, e.g. tandem arrangements of separate active media
    • H01S3/2308—Amplifier arrangements, e.g. MOPA
    • H01S3/2325—Multi-pass amplifiers, e.g. regenerative amplifiers
    • H01S3/2333—Double-pass amplifiers

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Optics & Photonics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Optical Communication System (AREA)
  • Lasers (AREA)
GB9616518A 1995-08-07 1996-08-06 Bidirectional optical amplifier for wavelength-division multiplex optical system Expired - Fee Related GB2304248B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9509578A FR2737787B1 (en) 1995-08-07 1995-08-07 BIDIRECTIONAL OPTICAL AMPLIFIER FOR WAVELENGTH MULTIPLEXING OPTICAL SYSTEMS

Publications (3)

Publication Number Publication Date
GB9616518D0 GB9616518D0 (en) 1996-09-25
GB2304248A GB2304248A (en) 1997-03-12
GB2304248B true GB2304248B (en) 1999-09-15

Family

ID=9481760

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9616518A Expired - Fee Related GB2304248B (en) 1995-08-07 1996-08-06 Bidirectional optical amplifier for wavelength-division multiplex optical system

Country Status (3)

Country Link
DE (1) DE19631890A1 (en)
FR (1) FR2737787B1 (en)
GB (1) GB2304248B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11177493A (en) * 1997-12-16 1999-07-02 Sumitomo Electric Ind Ltd Dispersion compensation circuit
US6160660A (en) * 1997-12-31 2000-12-12 Pirelli Cavi E Sistemi S.P.A. Bidirectional optical transmission system for dense interleaved wavelength division multiplexing
EP0928081B1 (en) * 1997-12-31 2004-11-17 Corning Photonic Technologies Inc. Bidirectional optical transmission system for dense interleaved wavelength division multiplexing
JP3092703B2 (en) * 1998-01-14 2000-09-25 日本電気株式会社 Bidirectional optical amplifier module
JPH11274625A (en) * 1998-03-19 1999-10-08 Nec Corp Optical fiber amplifier and optical fiber amplifier for bidirectional optical transmission employing it
US6538815B1 (en) * 2000-05-18 2003-03-25 Avanex Corporation Bi-directional optical circulator and applications thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5029685A (en) * 1973-03-29 1975-03-25
US5283686A (en) * 1992-07-27 1994-02-01 General Instrument Corporation, Jerrold Communications Optical systems with grating reflector
US5479082A (en) * 1993-08-10 1995-12-26 Cselt-Centro Studi E Laboratorti Telecommunicazioni S.P.A. Device for extraction and re-insertion of an optical carrier in optical communications networks

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2731614B2 (en) * 1989-12-25 1998-03-25 日本電信電話株式会社 Bidirectional optical amplifier
DE69224340T2 (en) * 1991-09-30 1998-06-04 Nippon Electric Co Two-way repeater with optical amplification
FR2687030A1 (en) * 1992-02-04 1993-08-06 Alsthom Cge Alcatel Installation for bi-directional information transmission using optical fibre(s)
GB2265751B (en) * 1992-03-23 1995-12-20 Univ Southampton Optical amplifier with automatic self adjusting gain spectrum

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5029685A (en) * 1973-03-29 1975-03-25
US5283686A (en) * 1992-07-27 1994-02-01 General Instrument Corporation, Jerrold Communications Optical systems with grating reflector
US5479082A (en) * 1993-08-10 1995-12-26 Cselt-Centro Studi E Laboratorti Telecommunicazioni S.P.A. Device for extraction and re-insertion of an optical carrier in optical communications networks

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
INSPEC abstract no. A9504-4225N-011 & Proc 1994 conf. Optical Fibre Communications OFC'94 p.277-8 *
WPI abstract no. 96-149387/15 & RD381071 *

Also Published As

Publication number Publication date
FR2737787B1 (en) 1997-10-31
GB2304248A (en) 1997-03-12
GB9616518D0 (en) 1996-09-25
FR2737787A1 (en) 1997-02-14
DE19631890A1 (en) 1997-02-13

Similar Documents

Publication Publication Date Title
GR3032595T3 (en) Optical multichannel system
HU9600175D0 (en) Bidirectional optical telecommunication system
HUT72802A (en) Amplified telecommunication system for wavelength-division multiplexing transmissions
GB2309131B (en) An optical transmission line for wavelength division multiplexed optical signals
GB9626744D0 (en) Optical amplifier & optical transmission system
SG42460A1 (en) Optical disc system
HK1004731A1 (en) Multi-channel optical fiber communication system
EP0543314A3 (en) Optical signal equalizer for wavelength division multiplexed optical fiber systems
GB2319419B (en) Demultiplexer device for wavelength-division multiplexed optical fiber communication
GB2306763B (en) Optical amplifier for wavelength division multiplexed signals
IL119881A0 (en) Optical communication system
HK1009544A1 (en) Optical image guide system
GB9607783D0 (en) Control apparatus for optical amplifier
GB9522356D0 (en) Long distance lightwave communication system
GB9515498D0 (en) Optical fibre system
EP0499255A3 (en) Optical switching system for optical wavelength-division and time-division multiplexed signals
GB9526183D0 (en) Dispersion slope equalisaion for wdm systems wih branches
DE69631304D1 (en) Multiplex transmission system
GB9517755D0 (en) Multiple pass optical system
GB9525766D0 (en) Optical amplifier
GB9526582D0 (en) Optical line system
GB2304248B (en) Bidirectional optical amplifier for wavelength-division multiplex optical system
GB9621746D0 (en) Improvements in optical wavelength division multiplex systems
GB2302484B (en) Optical tdm transmission system
HK1015572A1 (en) Optical communication system

Legal Events

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

Effective date: 20030806