CONTROL OF LASER PERFORMANCE.
Quarterly status rept. no. 3, 26 Dec 6325 Mar 64,
UNITED AIRCRAFT CORP EAST HARTFORD CONN
Pagination or Media Count:
Investigations on a research program relating to the control of laser output are described. Studies of the effect on laser output control of varying the refractive index of a medium in a laser cavity are being carried out with ultrasonic, electric, or magnetic means. The following experimental results were obtained 1. Initial tests of the glass prism light shutter were conducted with a visible He-Ne laser beam which was mechanically chopped at approximately 83 cps to facilitate modulation percentage measurements. Experimental results showed that approximately 80 modulation was obtained. 2. Gating of a 3 x 14 in. dia. Nd3 doped glass laser rod with one megacycle transducers bonded to the ends produced an increase in peak and total output power. 3. Recent investigations of ultrasonic cell configurations have disclosed that an improved ultrasonic standing wave can be obtained with the use of one complete cylindrical transducer instead of two 180 degree focusing sections which were previously proposed. Author