COMPARISON OF PARAMETERS OF RUBY AND NEODYMIUM QUANTUM GENERATORS WITH PULSE HIGH QUALITY (SRAVENENIE PARAMETROV RUBINOVOGO I NEODIMOVOGO KVANTOVYKH GENERATOROV S IMPULSNOI DOBROTNOST'YU
Abstract
An investigation was made of a ruby laser operating in a pulsed Q- switching mode. Q-switching was controlled by rotating the prism of total internal reflection. The giant pulses obtained from the ruby laser differed from the pulses of the neodymium laser by their parameters. A neodymium laser generates a single pulse at a prism rotation speed of 25,500 rpm and a pumping energy of 2020 joules, while the ruby laser with the same rotation speed and a smaller pumping energy (1520 joules) generates 2-3 pulses which diminish in power. The parameters of ruby and neodymium lasers operating under similar conditions were compared. Neodymium glass rods and ruby rods with identical dimensions were used. The illuminator, the rotating prism, and the electrical and measuring parts of the installation in both cases were the same. The prism rotated at 24,000 rpm. The optimum mirror from the emergence side in the neodymium laser had a reflection coefficient of 60% and in the ruby laser, 42%. The investigations showed that the rate of resonator Q-switching, which determines the character of the laser emission, depends not only on the rotation speed of the prism but also on the optical properties of the active substance.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 24, 1967
- Accession Number
- AD0675453
Entities
People
- V. A. Pilipovich
- Yu. F. Morgun