GB1257614A - - Google Patents

Info

Publication number
GB1257614A
GB1257614A GB1257614DA GB1257614A GB 1257614 A GB1257614 A GB 1257614A GB 1257614D A GB1257614D A GB 1257614DA GB 1257614 A GB1257614 A GB 1257614A
Authority
GB
United Kingdom
Prior art keywords
jan
mixture
output
germanium
tube
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
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 filed Critical
Publication of GB1257614A publication Critical patent/GB1257614A/en
Expired legal-status Critical Current

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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
    • H01S3/14—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range characterised by the material used as the active medium
    • H01S3/22—Gases
    • H01S3/223—Gases the active gas being polyatomic, i.e. containing two or more atoms
    • H01S3/2232—Carbon dioxide (CO2) or monoxide [CO]

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Optics & Photonics (AREA)
  • Lasers (AREA)

Abstract

1,257,614. Lasers. COMPAGNIE GENERALE D'ELECTRICITE. 19 Jan., 1970 [30 Jan., 1969], No. 2564/70. Heading H1C. In a gas laser, the active medium is a mixture of CO 2 , N 2 and He in the ratio of 1 : 2 : 20, and the mixture is pumped through the laser discharge tube at a pressure of 50-60 mm. Hg and a velocity exceeding 100 m/sec. The resonator comprises two concave mirrors, one of gold plated stainless steel, the other of partially transmitting germanium. The output may be be attenuated by a rotating slotted disc and germanium plates if it is desired to use a thermopile to measure the output power. A tube of about one metre length and of narrow bore will give a single transverse mode output.
GB1257614D 1969-01-30 1970-01-19 Expired GB1257614A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR6901980A FR2029899A5 (en) 1969-01-30 1969-01-30

Publications (1)

Publication Number Publication Date
GB1257614A true GB1257614A (en) 1971-12-22

Family

ID=9028407

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1257614D Expired GB1257614A (en) 1969-01-30 1970-01-19

Country Status (6)

Country Link
BE (1) BE744581A (en)
CH (1) CH506899A (en)
DE (1) DE2002423A1 (en)
FR (1) FR2029899A5 (en)
GB (1) GB1257614A (en)
NL (1) NL7001108A (en)

Also Published As

Publication number Publication date
DE2002423A1 (en) 1970-09-03
FR2029899A5 (en) 1970-10-23
BE744581A (en) 1970-07-20
CH506899A (en) 1971-04-30
NL7001108A (en) 1970-08-03

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Legal Events

Date Code Title Description
CSNS Application of which complete specification have been accepted and published, but patent is not sealed