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Electrooptically G-switched mini TEA CO2 laser

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Abstract

In some uses of the TEA CO2 laser, such as in range-finder applications, it is desirable to eliminate the low intensity and long (1-3-μsec) tail following the main laser pulse (50-100 nsec). It Is possible to minimize this tail with some loss in the energy output by varying the gas mixture composition or increasing the total gas pressure. Each method increases the deactivation rate of the upper laser level. Nevertheless, barring the complete elimination of N2 from the gas mix, it is not possible to suppress this tail completely. A N2-free mixture leads to a very inefficient and difficult-to-operate laser.

© 1983 Optical Society of America

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