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Proceedings Paper

Narrow Gaussian CO2 laser beam in an M mode of a rectangular sheath cavity
Author(s): Baruch Sterman; Amnon Gabay; Shaul Yatsiv
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Paper Abstract

The design and operation of a laser based on an M-mode radiation distribution is described. A thin rectangular gain region (whkh normally generates an elongated strip output) is matched to a hemiconfocal optical cavity with a stop at the center of the spherical mirror, producing a narrow Gaussian beam traveling parallel to the optical axis. For suitable electrode dimensions, more than 85% of the total extractable power is present in the beam, which is identical in its waist to that of a laser four times as long. Computer simulations of the cavity yielded results conforming to experiment regarding the sensitivity of the mode to deviations in the hemiconfocality of the cavity. The possibility of extending the folding to higher multiplicities is discussed.

Paper Details

Date Published: 1 October 1990
PDF: 8 pages
Proc. SPIE 1276, CO2 Lasers and Applications II, (1 October 1990); doi: 10.1117/12.20535
Show Author Affiliations
Baruch Sterman, Hebrew Univ. (Israel)
Amnon Gabay, Hebrew Univ. (Israel)
Shaul Yatsiv, Hebrew Univ. (Israel)

Published in SPIE Proceedings Vol. 1276:
CO2 Lasers and Applications II
Hans Opower, Editor(s)

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