Accession Number : AD0726627

Title :   Optical Parametric Oscillator Research.

Descriptive Note : Final rept. 1 May 69-30 Apr 71,

Corporate Author : SYLVANIA ELECTRONIC SYSTEMS-WEST MOUNTAIN VIEW CALIF ELECTRO-OPTICS ORGANIZATION

Personal Author(s) : Ammann,Eugene O. ; Yarborough,J. Michael ; Falk,Joel

Report Date : 01 JUN 1971

Pagination or Media Count : 103

Abstract : The report summarizes the results obtained during a two year optical parametric oscillator program. The goal of this work is to perform studies which will lead to more efficient, stable operation of optical parametric oscillators. Three subjects have been studied on this program. First, an internal optical parametric oscillator of special design was proposed, built, and operated. This marks only the second time that an internal oscillator has been successfully operated. Stable efficient parametric oscillation was obtained with average 2.1 micron output powers as high as 350 mW. This oscillator output power is an order of magnitude greater than any previously reported. The second and third subjects investigated on this program concern the simultaneous occurrence of nonlinear optical processes. Experimental and theoretical studies were carried out on the simultaneous occurrence of parametric oscillation and second harmonic generation in a single nonlinear crystal. In addition, investigations were begun on the simultaneous occurrence of oscillation and sum-frequency generation. Both of these simultaneous processes are of interest for two reasons: (1) they provide a technique for generating a new output near the pump frequency of an optical parametric oscillator; and (2) in normal oscillator operation, they are undesirable and should be avoided since they act as a loss mechanism for the signal or idler. (Author)

Descriptors :   (*COHERENT RADIATION, FREQUENCY MULTIPLIERS), (*INFRARED RADIATION, TUNING DEVICES), LITHIUM COMPOUNDS, NIOBATES, INFRARED LASERS, HARMONIC ANALYSIS, EXPERIMENTAL DESIGN, OPTICAL PUMPING

Subject Categories : Lasers and Masers
      Optics

Distribution Statement : APPROVED FOR PUBLIC RELEASE