Numéro
J. Phys. Colloques
Volume 48, Numéro C7, Décembre 1987
1st International Laser M2P Conference
Page(s) C7-391 - C7-395
DOI https://doi.org/10.1051/jphyscol:1987795
1st International Laser M2P Conference

J. Phys. Colloques 48 (1987) C7-391-C7-395

DOI: 10.1051/jphyscol:1987795

INFRARED LIGHT TO VISIBLE LIGHT UPCONVERSION IN HEAVY METAL FLUORIDE GLASSES

W.A. SIBLEY and D.C. YEH

Department of Physics, Oklahoma State University, Stillwater, OK 74078-0444, U.S.A.


Abstract
The efficient change of infrared light to visible light has important positive implications for optical detection and display devises. On the other hand, this process can, in some instances, such as the development of laser sources in fibers, result in unwanted effects. In this paper, the efficiency of the two photon upconversion process in heavy metal fluoride gallses and in halide crystals is reviewed. Methods for increasing or reducing the efficiency of the upconversion process as applicable to display, optical detection devices and the formation of efficient laser systems in fibers are discussed.