OPTICAL PUMPS FOR LASERS - PHASE II.
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)
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 1966
- Accession Number
- AD0801249
Entities
People
- Charles H. Church
- D. A. Larson
- I. Liberman