CRYSTALS FOR OPTICAL MASER APPLICATIONS.
Abstract
A discussion of techniques employed and the results obtained in efforts to prepare high optical quality garnet laser crystals is given. All crystals thus prepared contained sizeable quantities of second-phase material and mechanical strain associated with this second-phase material. This condition was caused by the loss of gallium oxides from the melt during Czochralski growth efforts leading to a non-stoichiometric melt situation. Data concerning the large angle scatter, optical path length variations, excitation spectra, fluorescence lifetime, and fluorescence linewidth of various Nd-doped glass samples are given. The experimental methods employed in obtaining these data are described in detail. Accurate measurement of the room temperature R1 linewidth of 42 rubies was made. In 41 of these rubies the chromium concentration was nearly identical and the R1 linewidth for all was 5.0 + or - .3A, in agreement with present theories. Experimental details are given. The design, construction, and testing of two prototypes optical walkie-talkie units is also discussed. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1966
- Accession Number
- AD0484276
Entities
People
- J. B. Schroeder
- J. F. Nester
- R. A. Benedict