Accession Number : ADA292790

Title :   Crystal Growth of Diode Pumpable Laser Materials.

Descriptive Note : Final rept. 1 Sep 90-1 Nov 93,

Corporate Author : LITTON SYSTEMS INC MORRIS PLAINS NJ AIRTRON DIV

Personal Author(s) : Belt, R. ; Uhrin, R. ; Randles, M. ; Creamer, J.

PDF Url : ADA292790

Report Date : 31 JAN 1994

Pagination or Media Count : 62

Abstract : This program describes the preparation and crystal growth of materials which may be particularly suitable for laser diode pumping. Disordered crystal structures with broadened absorption and emission bands were investigated. About 60 growth runs were achieved with oxide hosts and ten with fluoride hosts. The laser dopants were chosen to yield highly efficient 1-5 micrometers lasers, possible tunable laser in the 2-3 micrometers region, all with good temperature stability. Materials were all grown, fabricated, and coated at Airtron. The active and passive laser tests were performed at the Naval Research Laboratory. Several oxides were identified and gave excellent results with Ho, Er, or Tm doping. U(3+):YLiF4 was the most interesting among the fluorides. The results of these investigations were presented at various conferences.

Descriptors :   *LASER PUMPING, *SOLID STATE LASERS, *SEMICONDUCTOR DIODES, *LASER MATERIALS, CRYSTAL STRUCTURE, TUNABLE LASERS, MATERIALS, TEST METHODS, ORDER DISORDER TRANSFORMATIONS, SINGLE CRYSTALS, EMISSION SPECTRA, THERMAL STABILITY, OXIDES, RADIATION ABSORPTION, DOPING, RARE EARTH ELEMENTS, FLUORIDES, CRYSTAL GROWTH, CZOCHRALSKI CRYSTALS.

Subject Categories : Lasers and Masers

Distribution Statement : APPROVED FOR PUBLIC RELEASE