Accession Number : AD0703714

Title :   SELF-GIANT-PULSED OPERATION OF RUBY AND Nd3(+): YAG LASERS,

Corporate Author : AEROSPACE CORP EL SEGUNDO CALIF LAB OPERATIONS

Personal Author(s) : Birnbaum,Milton

Report Date : 14 FEB 1970

Pagination or Media Count : 26

Abstract : Self-giant-pulsed operation of ruby lasers at 77 and 300K and Nd(3+):YAG lasers at 77K pumped by the 5145A output of a pulsed argon ion laser is described. Self-giant-pulsed operation was obtained by: (1) static mirror misalignment, and (2) static misalignment of the filament of the pumped laser material with respect to the mirror resonator axis. An output that consisted of a single 'giant' pulse could be obtained for ruby by either method; for Nd(3+):YAG, the output always consisted of one or more 'giant' pulses and characteristic relaxation oscillations. These results are compared with the predictions of the theoretical model of E. R. Peressini in which the self-giant pulsing of these lasers is described as a limiting case of spiking. The relaxation oscillations in the output of ruby, Nd(3+):YAG, Nd(3+): glass and Nd(3+):CaWO4 are compared with the theoretical predictions. (Author)

Descriptors :   (*LASERS, PULSE MODULATION), LIGHT PULSES, OPTICAL PUMPING, MIRRORS, ALIGNMENT, REFLECTION, RESONATORS, NEODYMIUM, GARNET, RUBY

Subject Categories : Lasers and Masers

Distribution Statement : APPROVED FOR PUBLIC RELEASE