GB1500064A - Optical device - Google Patents

Optical device

Info

Publication number
GB1500064A
GB1500064A GB26040/75A GB2604075A GB1500064A GB 1500064 A GB1500064 A GB 1500064A GB 26040/75 A GB26040/75 A GB 26040/75A GB 2604075 A GB2604075 A GB 2604075A GB 1500064 A GB1500064 A GB 1500064A
Authority
GB
United Kingdom
Prior art keywords
lasers
june
lens
gas jets
electricite
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
GB26040/75A
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.)
Alcatel Lucent SAS
Original Assignee
Compagnie Generale dElectricite 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 Compagnie Generale dElectricite SA filed Critical Compagnie Generale dElectricite SA
Publication of GB1500064A publication Critical patent/GB1500064A/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
    • H01S3/005—Optical devices external to the laser cavity, specially adapted for lasers, e.g. for homogenisation of the beam or for manipulating laser pulses, e.g. pulse shaping
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements

Landscapes

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

Abstract

1500064 Lasers COMPAGNIE GENERALE D'ELECTRICITE 18 June 1975 [21 June 1974] 26040/75 Heading H1C [Also in Division G2] A lens for use in high powered CO 2 lasers is made of a suitable material 30, i.e. germanium, arsenic/gallium, zinc/selenium, cadmium/telluride, and has its peripheral zone 12 exposed to a fluid coolant circulating in jacket 6, to prevent heating and consequent increase in absorption of energy from the beam leading to thermal runaway. Gas jets 17, e.g. of dry nitrogen, prevent condensation of atmospheric water vapour. Fig, 1 of the drawings (not shown) illustrates an embodiment using a plain faced window element in place of the lens and only one face is dried by the gas jets.
GB26040/75A 1974-06-21 1975-06-18 Optical device Expired GB1500064A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7421626A FR2275909B1 (en) 1974-06-21 1974-06-21 OPTICAL DEVICE INTENDED TO BE CROSSED BY A LUMINOUS BEAM HAVING A WAVELENGTH NEAR 10.6 MICRONS

Publications (1)

Publication Number Publication Date
GB1500064A true GB1500064A (en) 1978-02-08

Family

ID=9140366

Family Applications (1)

Application Number Title Priority Date Filing Date
GB26040/75A Expired GB1500064A (en) 1974-06-21 1975-06-18 Optical device

Country Status (5)

Country Link
BE (1) BE829409A (en)
CA (1) CA1040468A (en)
FR (1) FR2275909B1 (en)
GB (1) GB1500064A (en)
SE (1) SE7507198L (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114014663B (en) * 2021-11-29 2023-01-31 河南城建学院 Tellurium-selenium-arsenic-cadmium compound, target material and preparation method thereof

Also Published As

Publication number Publication date
BE829409A (en) 1975-11-24
FR2275909A1 (en) 1976-01-16
SE7507198L (en) 1975-12-22
CA1040468A (en) 1978-10-17
FR2275909B1 (en) 1979-08-17

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Legal Events

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