GB2225483B - Electrical discharge apparatuses - Google Patents

Electrical discharge apparatuses

Info

Publication number
GB2225483B
GB2225483B GB8925640A GB8925640A GB2225483B GB 2225483 B GB2225483 B GB 2225483B GB 8925640 A GB8925640 A GB 8925640A GB 8925640 A GB8925640 A GB 8925640A GB 2225483 B GB2225483 B GB 2225483B
Authority
GB
United Kingdom
Prior art keywords
electrical discharge
discharge apparatuses
apparatuses
electrical
discharge
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 - Lifetime
Application number
GB8925640A
Other versions
GB8925640D0 (en
GB2225483A (en
Inventor
Paul Michael Schwarzenberger
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.)
BAE Systems Electronics Ltd
Original Assignee
GEC Marconi Ltd
Marconi Co 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 GEC Marconi Ltd, Marconi Co Ltd filed Critical GEC Marconi Ltd
Publication of GB8925640D0 publication Critical patent/GB8925640D0/en
Publication of GB2225483A publication Critical patent/GB2225483A/en
Application granted granted Critical
Publication of GB2225483B publication Critical patent/GB2225483B/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H01S3/097—Processes or apparatus for excitation, e.g. pumping by gas discharge of a gas laser
    • H01S3/0971—Processes or apparatus for excitation, e.g. pumping by gas discharge of a gas laser transversely excited
    • H01S3/09713—Processes or apparatus for excitation, e.g. pumping by gas discharge of a gas laser transversely excited with auxiliary ionisation, e.g. double discharge excitation
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J17/00—Gas-filled discharge tubes with solid cathode
    • H01J17/02—Details
    • H01J17/30—Igniting arrangements
    • 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
    • H01S3/02—Constructional details
    • H01S3/03—Constructional details of gas laser discharge tubes
    • H01S3/038—Electrodes, e.g. special shape, configuration or composition
    • H01S3/0388—Compositions, materials or coatings
    • 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
    • H01S3/02—Constructional details
    • H01S3/03—Constructional details of gas laser discharge tubes
    • H01S3/038—Electrodes, e.g. special shape, configuration or composition
    • H01S3/0384—Auxiliary electrodes, e.g. for pre-ionisation or triggering, or particular adaptations therefor

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Optics & Photonics (AREA)
  • Lasers (AREA)
GB8925640A 1988-11-28 1989-11-13 Electrical discharge apparatuses Expired - Lifetime GB2225483B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB888827702A GB8827702D0 (en) 1988-11-28 1988-11-28 Electric discharge apparatus

Publications (3)

Publication Number Publication Date
GB8925640D0 GB8925640D0 (en) 1990-01-04
GB2225483A GB2225483A (en) 1990-05-30
GB2225483B true GB2225483B (en) 1992-10-21

Family

ID=10647559

Family Applications (2)

Application Number Title Priority Date Filing Date
GB888827702A Pending GB8827702D0 (en) 1988-11-28 1988-11-28 Electric discharge apparatus
GB8925640A Expired - Lifetime GB2225483B (en) 1988-11-28 1989-11-13 Electrical discharge apparatuses

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB888827702A Pending GB8827702D0 (en) 1988-11-28 1988-11-28 Electric discharge apparatus

Country Status (1)

Country Link
GB (2) GB8827702D0 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6052402A (en) * 1998-04-08 2000-04-18 Argus Photonics Group, Inc. Laser having an electrode assembly including arc suppression means

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB757022A (en) * 1951-09-29 1956-09-12 Ericsson Telefon Ab L M Improvements in or relating to electric circuits comprising gas-filled glow discharge tubes
GB1307627A (en) * 1969-08-29 1973-02-21 Ca Minister Nat Defence Molecular gas laser excitation systems
GB2053556A (en) * 1978-10-20 1981-02-04 Univ Essex Pre-ionising arrangement for electrical discharge apparatus such as a gas laser
EP0048407A1 (en) * 1980-09-22 1982-03-31 Kraftwerk Union Aktiengesellschaft High-energy TEA laser with ionizing rods arranged parallel to the laser axis

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB757022A (en) * 1951-09-29 1956-09-12 Ericsson Telefon Ab L M Improvements in or relating to electric circuits comprising gas-filled glow discharge tubes
GB1307627A (en) * 1969-08-29 1973-02-21 Ca Minister Nat Defence Molecular gas laser excitation systems
GB2053556A (en) * 1978-10-20 1981-02-04 Univ Essex Pre-ionising arrangement for electrical discharge apparatus such as a gas laser
EP0048407A1 (en) * 1980-09-22 1982-03-31 Kraftwerk Union Aktiengesellschaft High-energy TEA laser with ionizing rods arranged parallel to the laser axis

Also Published As

Publication number Publication date
GB8925640D0 (en) 1990-01-04
GB8827702D0 (en) 1988-12-29
GB2225483A (en) 1990-05-30

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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: 19931113