A COMPACT, SEALED, SINGLE MODE TEA-CO2 LASER

Authors
  1. Pace, P.
  2. Lacombe, M.
Corporate Authors
Defence Research Establishment Valcartier, Valcartier QUE (CAN)
Abstract
A compact, sealed, TEA-CO2 laser utilizing a double-discharge technique has been constructed and operated under single-mode conditions. Sealed operational lfetimes exceeding E6 pulses have been obtained by the addition of small quantities of hydrogen and CO to the initial gas mixtures. It has also been found that operation without helium is possible giving single-mode output energies of about 35 mJ/pulse at peak powers of about 150 kW. The pulse repetition frequency was 0.5 s1(-). To obtain single-longitudinal-mode operation, the laser cavity was kept at on overall length of 18 cm. This short laser cavity allowed the oscillation of only one longitudinal mode when the frequency of the cavity was tuned closely to the CO2 line centre frequency.
Report Number
DREV-4112/78 —
Date of publication
15 Jun 1978
Number of Pages
22
DSTKIM No
78-02482
CANDIS No
83170
Format(s):
Hardcopy;Originator's fiche received by DSIS

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