Accession Number : AD0801249

Title :   OPTICAL PUMPS FOR LASERS - PHASE II.

Descriptive Note : Quarterly progress rept. no. 1, 1 Apr-30 Jun 66,

Corporate Author : WESTINGHOUSE RESEARCH LABS PITTSBURGH PA

Personal Author(s) : Church, Charles H. ; Larson, D. A. ; Liberman, I.

Report Date : SEP 1966

Pagination or Media Count : 2

Abstract : The work consisted of the construction and testing of a number of Na-Hg lamps in a polycrystalline aluminum (PCA) envelope. The observed parameters of interest were the lumens/watt and the spectral wavelengths radiated. These parameters were varied by changing the quantities of Na and Hg as well as the noble filler gas. In addition, an oven varied the temperature of the Na-Hg reservoir and the input electrical power was also varied. Some lifetime testing of the lamp in an open, non-reflecting geometry was also done. The effort at the Research Laboratories was in the constructing of the test laser head. The optical bench mounted head consists of a six inch diameter spherical cavity, a liquid cooled laser rod assembly, an adjustable lamp and rod holder assembly and adjustable external mirror resonators. The laser head was tested using a tungsten-iodine lamp as a pump. Although many parameters were not optimized, an overall slope efficiency of .7% was obtained with 2.6 watts out at 1060 watts into the pump. (Author)

Descriptors :   *LASERS), (*OPTICAL PUMPING, (*FLASH LAMPS, OPTICAL PUMPING), YTTRIUM COMPOUNDS, ALUMINUM COMPOUNDS, GARNET, SODIUM, MERCURY LAMPS, CHROMIUM, INFRARED SPECTRA, ABSORPTION SPECTRA, TUNGSTEN, IODINE, INFRARED RADIATION, INFRARED SPECTROSCOPY, NEODYMIUM.

Subject Categories : Electrical and Electronic Equipment
      Optics
      Plasma Physics and Magnetohydrodynamics

Distribution Statement : APPROVED FOR PUBLIC RELEASE