Some characteristics of population inversion of the /sup 4/I/sub 13/2/ level of erbium ions in ytterbium--erbium glasses

Journal Article · Tue Sep 01 04:00:00 EDT 1981 · Sov. J. Quant. Electron. (Engl. Transl.); (United States)

DOI:https://doi.org/10.1070/QE1981v011n09ABEH008386· OSTI ID:5587780

Artem'ev, E F; Murzin, A G; Fedorov, Y K; Fromzel, V A

A comparative investigation is made of phosphate, germanate, and lithium silicate glasses activated with Yb/sup 3 +/ and Er/sup 3 +/ ions in order to determine their potential usefulness for the development of laser-pumped (lambda = 1.06 ..mu..) amplifiers for short (10/sup -8/ sec) pulses at the lambda = 1.54 ..mu.. wavelength. Some features of the spectral and luminescence characteristics and the kinetics of energy transfer in these glasses are studied. It is shown that the increase in the population inversion of the /sup 4/I/sub 13/2/ level of Er/sup 3 +/ ions in lithium silicate and germanate glasses is considerably slower than the increase in the absorbed pump energy. Possible mechanisms for this anomalous behavior are discussed. It is shown theoretically and experimentally that the main reason for this is reverse transfer of excitation energy from Er/sup 3 +/ to Yb/sup 3 +/ ions, which is almost absent in phosphate glasses.

• OSTI ID: 5587780
• Journal Information: Sov. J. Quant. Electron. (Engl. Transl.); (United States), Journal Name: Sov. J. Quant. Electron. (Engl. Transl.); (United States) Vol. 11:9; ISSN SJQEA
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420300* -- Engineering-- Lasers-- (-1989)
AMPLIFIERS
CHARGED PARTICLES
ELECTRONIC EQUIPMENT
EQUIPMENT
ERBIUM IONS
GLASS
IONS
LASER MATERIALS
LASERS
LUMINESCENCE
MATERIALS
OPTICAL PUMPING
POPULATION INVERSION
PUMPING
SOLID STATE LASERS
SPECTRA