GB1334009A - Laser devices - Google Patents

Laser devices

Info

Publication number
GB1334009A
GB1334009A GB1334009DA GB1334009A GB 1334009 A GB1334009 A GB 1334009A GB 1334009D A GB1334009D A GB 1334009DA GB 1334009 A GB1334009 A GB 1334009A
Authority
GB
United Kingdom
Prior art keywords
filter
lamp
pumping
discharge lamp
active medium
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
Application number
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.)
General Electric Co PLC
Original Assignee
General Electric Co 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 General Electric Co PLC filed Critical General Electric Co PLC
Publication of GB1334009A publication Critical patent/GB1334009A/en
Expired 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
    • H01S3/092—Processes or apparatus for excitation, e.g. pumping using optical pumping by incoherent light of flash lamp

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Optics & Photonics (AREA)
  • Lasers (AREA)

Abstract

1334009 Lasers; discharge lamps GENERAL ELECTRIC CO Ltd 1 May 1972 [19 May 1971] 15861/71 Headings H1C and H1D A solid laser active medium is optically pumped by a discharge lamp which has a filter on its outer surface, this filter passing only wavelengths suitable for pumping the medium and reflecting other wavelengths back into the discharge lamp. This raises the efficiency of the discharge lamp at the pumping frequencies, and also provides radiation suitable for pumping while reducing heating and solarizing of the active medium. The discharge lamp and a rod of the active medium, e.g. a YAG, a glass or a ruby, are mounted along respective focal lines of an elliptical pumping light reflector; this latter may be a glass housing with an external silver coating. The lamp filter may comprise layers of zinc sulphide and thorium fluoride of a thickness which provides an interference filter. The outer layer of the filter is thorium fluoride, to allow water cooling of the lamp. The lamp may have a filling of krypton or xenon at a pressure of 400 torr.
GB1334009D 1971-05-19 1971-05-19 Laser devices Expired GB1334009A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1586171 1971-05-19

Publications (1)

Publication Number Publication Date
GB1334009A true GB1334009A (en) 1973-10-17

Family

ID=10066846

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1334009D Expired GB1334009A (en) 1971-05-19 1971-05-19 Laser devices

Country Status (1)

Country Link
GB (1) GB1334009A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1983003719A1 (en) * 1982-04-16 1983-10-27 Langhans, Lutz Light source with set emission spectrum
EP0226790A2 (en) * 1985-12-16 1987-07-01 AlliedSignal Inc. Unitary solid-state laser
WO2004023613A1 (en) * 2002-09-03 2004-03-18 Qinetiq Limited Cooling jacket for a flashlamp or arc lamp

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1983003719A1 (en) * 1982-04-16 1983-10-27 Langhans, Lutz Light source with set emission spectrum
EP0226790A2 (en) * 1985-12-16 1987-07-01 AlliedSignal Inc. Unitary solid-state laser
EP0226790A3 (en) * 1985-12-16 1988-03-16 Allied Corporation Unitary solid-state laser
WO2004023613A1 (en) * 2002-09-03 2004-03-18 Qinetiq Limited Cooling jacket for a flashlamp or arc lamp

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees