Narrow Gaussian CO2 laser beam in an M mode of a rectangular sheath cavity

Baruch Sterman; Amnon Gabay; Shaul Yatsiv

doi:10.1117/12.20535

1 October 1990 Narrow Gaussian CO2 laser beam in an M mode of a rectangular sheath cavity

Baruch Sterman, Amnon Gabay, Shaul Yatsiv

Proceedings Volume 1276, CO2 Lasers and Applications II; (1990) https://doi.org/10.1117/12.20535
Event: The International Congress on Optical Science and Engineering, 1990, The Hague, Netherlands

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.

Citation Download Citation

Baruch Sterman, Amnon Gabay, and Shaul Yatsiv "Narrow Gaussian CO2 laser beam in an M mode of a rectangular sheath cavity", Proc. SPIE 1276, CO2 Lasers and Applications II, (1 October 1990); https://doi.org/10.1117/12.20535

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