GB2243942B - Fibre amplifiers - Google Patents

Fibre amplifiers

Info

Publication number
GB2243942B
GB2243942B GB9101408A GB9101408A GB2243942B GB 2243942 B GB2243942 B GB 2243942B GB 9101408 A GB9101408 A GB 9101408A GB 9101408 A GB9101408 A GB 9101408A GB 2243942 B GB2243942 B GB 2243942B
Authority
GB
United Kingdom
Prior art keywords
fibre amplifiers
amplifiers
fibre
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
GB9101408A
Other versions
GB2243942A (en
GB9101408D0 (en
Inventor
Paul William France
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.)
British Telecommunications PLC
Original Assignee
British Telecommunications 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 British Telecommunications PLC filed Critical British Telecommunications PLC
Publication of GB9101408D0 publication Critical patent/GB9101408D0/en
Publication of GB2243942A publication Critical patent/GB2243942A/en
Application granted granted Critical
Publication of GB2243942B publication Critical patent/GB2243942B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • H01S3/05—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
    • H01S3/06708—Constructional details of the fibre, e.g. compositions, cross-section, shape or tapering
    • H01S3/06716—Fibre compositions or doping with active elements
    • 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
    • H01S3/094—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light
    • H01S3/094003—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light the pumped medium being a fibre
    • H01S3/094011—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light the pumped medium being a fibre with bidirectional pumping, i.e. with injection of the pump light from both two ends of the fibre
    • 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
    • H01S3/094—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light
    • H01S3/094096—Multi-wavelength pumping

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Optics & Photonics (AREA)
  • Lasers (AREA)
GB9101408A 1990-01-22 1991-01-22 Fibre amplifiers Expired - Fee Related GB2243942B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB909001394A GB9001394D0 (en) 1990-01-22 1990-01-22 Fibre amplifiers

Publications (3)

Publication Number Publication Date
GB9101408D0 GB9101408D0 (en) 1991-03-06
GB2243942A GB2243942A (en) 1991-11-13
GB2243942B true GB2243942B (en) 1994-07-20

Family

ID=10669685

Family Applications (2)

Application Number Title Priority Date Filing Date
GB909001394A Pending GB9001394D0 (en) 1990-01-22 1990-01-22 Fibre amplifiers
GB9101408A Expired - Fee Related GB2243942B (en) 1990-01-22 1991-01-22 Fibre amplifiers

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB909001394A Pending GB9001394D0 (en) 1990-01-22 1990-01-22 Fibre amplifiers

Country Status (1)

Country Link
GB (2) GB9001394D0 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2708354B1 (en) * 1993-07-26 1995-09-01 France Telecom Optical fiber optic amplifier in doped fluorinated glass and method of manufacturing this amplifier.
FR2715481B1 (en) * 1994-01-26 1996-02-16 Mathilde Semenkoff Optical fiber optic amplifier in doped fluorinated glass and method of manufacturing this amplifier.
JP3379052B2 (en) * 1994-09-26 2003-02-17 富士通株式会社 WDM optical amplifier, WDM transmission system, and WDM transmission method
EP1126567A1 (en) 2000-01-31 2001-08-22 Alcatel An optical fibre amplifier
US7038844B2 (en) * 2003-09-29 2006-05-02 The Regents Of The University Of California High power 938 nanometer fiber laser and amplifier

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1015057A (en) * 1961-10-27 1965-12-31 American Optical Corp Improvements in and relating to optical masers or lasers
GB1138338A (en) * 1964-12-22 1969-01-01 American Optical Company Delaw Improvements in or relating to lasers
GB1207083A (en) * 1968-04-30 1970-09-30 American Optical Corp Laser constructions
GB1241724A (en) * 1968-08-08 1971-08-04 American Optical Corp Improvements in or relating to laser materials

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1015057A (en) * 1961-10-27 1965-12-31 American Optical Corp Improvements in and relating to optical masers or lasers
GB1138338A (en) * 1964-12-22 1969-01-01 American Optical Company Delaw Improvements in or relating to lasers
GB1207083A (en) * 1968-04-30 1970-09-30 American Optical Corp Laser constructions
GB1241724A (en) * 1968-08-08 1971-08-04 American Optical Corp Improvements in or relating to laser materials

Also Published As

Publication number Publication date
GB2243942A (en) 1991-11-13
GB9001394D0 (en) 1990-03-21
GB9101408D0 (en) 1991-03-06

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Legal Events

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

Effective date: 19950122