Accession Number : AD0837047

Title :   A RUBY LASER WITH HIGH MODE SELECTIVITY (EIN OPTISCHER RUBIN-MOLEKULARVERSTAERKER MIT HOHER MODENSELEKTION),

Corporate Author : AMERICAN METEOROLOGICAL SOCIETY BOSTON MA

Personal Author(s) : Roess, D.

Report Date : JUN 1964

Pagination or Media Count : 10

Abstract : By increasing the reflector spacing in a plane Perot-Fabry resonator to 250 cm, a ruby laser of high mode selectivity can be realized. Well-defined modes with regular pulse repetition rate come about. The angular divergence of the beam is less than one minute of arc even in the case of higher pump energies. The resonator oscillates virtually in axial modes alone. Mode diaphragms in the feedback path simplify the oscillation performance so that regular relaxation oscillations come about even with minor reflector spacings. (Author)

Descriptors :   (*LASERS, INTERFEROMETERS), PULSES, OPTICAL PUMPING, FEEDBACK, MIRRORS, OSCILLATION, FOCUSING, RUBY, SELECTION, WEST GERMANY.

Subject Categories : Lasers and Masers

Distribution Statement : APPROVED FOR PUBLIC RELEASE