Accession Number : AD0615112

Title :   FURTHER CONSIDERATIONS ON REGENERATIVE RUBY LASER AMPLIFIERS,

Corporate Author : ARMY ELECTRONICS COMMAND FORT MONMOUTH N J

Personal Author(s) : Jacobs,Harold ; brand,Frank A. ; LoCascio,C. ; Novick,G. ; Castro,J.

Report Date : MAR 1965

Pagination or Media Count : 40

Abstract : Experiments were initiated to investigate the validity of amplifiers using ruby at liquid nitrogen temperatures. A transmission system was set up and by controlling the relative time delays in firing both rods, the properties of transmitted power gain were studied. It was found that both the oscillator and amplifier rubies when uncoated, could be made to oscillate for about 100 micro sec giving a well-defined pulse of quasi CW operation. The gain of the amplifier increased as the times of the input signal from the oscillator approached the time at which the amplifier went into oscillation. If the oscillator was delayed so that its signal occurred at increasing time after the amplifier oscillations had ceased, the power gain decreased, even though the amplifier crystal was still being pumped. Finally, with still further delay in signal relative to the amplifier oscillation period, an attenuation in transmission was observed. Analysis of these data provides information which is consistent so far with the previously reported theory. (Author)

Descriptors :   (*LASERS, RUBY), (*AMPLIFIERS, LASERS), LIGHT TRANSMISSION, AIR, CRYSTALS, REFLECTION, GAIN, ATTENUATION, LOW TEMPERATURE, OSCILLATORS, OSCILLATION

Distribution Statement : APPROVED FOR PUBLIC RELEASE