Accession Number : AD0665584

Title :   LASER WITH MAXIMUM DEEP MODULATION OF RESONATOR QUALITY,

Corporate Author : FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s) : Starunov,M. H. ; Eromka,V. D. ; Bonchkovskii,V. Y.

Report Date : 18 AUG 1967

Pagination or Media Count : 10

Abstract : In earlier experiments Q switching was usually effected by interrupting the coupling between the active rod and only one resonator mirror; the report investigates the properties of a laser in which the coupling with both mirrors is interrupted. An estimate shows that the gain can be increased in this case to almost the theoretical 50%. Two variants of such a laser were tested. Two ruby crystals each 24 cm long and 1.25 cm in diameter were used. One crystal operated in the Q-switching mode. The ends of the crystals and the hypotenuse faces of the total-reflection prisms were coated with MgF2 and CaF2 films, respectively. The resonator comprised alternating dielectric coatings of CaF2 and ZnS on plate glass and the prism. The plate was rotated at 12,000 rpm. The focused giant pulse produced breakdown in air. (Author)

Descriptors :   (*LASERS, USSR), OPTICAL PROPERTIES, MODULATION, RESONATORS, CRYSTALS, RUBY, DIELECTRIC FILMS, RODS

Subject Categories : Lasers and Masers

Distribution Statement : APPROVED FOR PUBLIC RELEASE