Sensitization of ytterbium--erbium glasses by chromium ions in the amplification mode

Journal Article · Tue Jul 01 04:00:00 EDT 1986 · Opt. Spectrosc. (Engl. Transl.); (United States)

OSTI ID:6644242

Kuchma, I G; Fedorov, Y K; Fromzel, V A

The influence of Cr/sup 3 +/ions in phosphate ytterbium--erbium (Yb--Er) glasses on the energetics of the amplification regime on the /sup 4/I/sub 13//sub ///sub 2/-/sup 4/I/sub 15//sub ///sub 2/ transition of Er/sup 3 +/ ions (lambda = 1.54 ..mu..m) during lamp pumping has been studied. It is shown that the efficiency of sensitization of Yb--Er glasses by Cr/sup 3 +/ ions in this regime differs appreciably from that in the free-running regime, in particular, conditions exist under which quenching of Yb/sup 3 +/ ions by Cr/sup 3 +/ ions is observed instead of the expected sensitization. The efficiency of energy transfer from Cr/sup 3 +/ to Yb/sup 3 +/ and Er/sup 3 +/ ions is estimated quantitatively for various pumping conditions and ratios of activator concentrations.

• Research Organization: Rhodes College, Memphis, Tennessee
• OSTI ID: 6644242
• Journal Information: Opt. Spectrosc. (Engl. Transl.); (United States), Journal Name: Opt. Spectrosc. (Engl. Transl.); (United States) Vol. 61:1; ISSN OPSUA
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420300* -- Engineering-- Lasers-- (-1989)
ALLOYS
CHROMIUM ADDITIONS
CHROMIUM ALLOYS
EFFICIENCY
ENERGY TRANSFER
ERBIUM COMPOUNDS
GLASS
LASERS
PUMPING
RARE EARTH COMPOUNDS
SOLID STATE LASERS
YTTERBIUM COMPOUNDS