Infrared-to-visible upconversion in singlemode and multimode fluoride glass (ZBLAN) optical fibers doped with erbium

Author

Kaczmarek, F.

Author_Institution

Quantum Electron. Lab., A. Mickiewicz Univ., Poznan, Poland

fYear

1999

fDate

1999

Firstpage

71

Lastpage

75

Abstract

Singlemode and multimode fluoride glass (ZBLAN) erbium doped fibers of Verre et Fluore (France) have been excited by CW diode laser of SDL (U5A); at the wavelengths of 800 and 970 nm. Fluorescence spectrum in the visible due to infrared-to-visible upconversion was determined, and the lifetime of the main ⁴S_3/2 level, responsible for the strongest ⁴S_3/2→ ⁴I_15/2 transition in the green was measured. Upconversion is, in general, a result of several processes: ground state absorption (G5A), excited state absorption (E5A), cooperative ion-pair interaction (energy transfer mechanism) and avalanche. All these processes are discussed on the basis of the results observed during infrared excitation of the fiber. The core diameter of the fiber was in the range of a few micrometers, and its length-2 to 3 meters

Keywords

barium compounds; erbium; fluorescence; impurity absorption spectra; lanthanum compounds; optical fibre testing; sodium compounds; zirconium compounds; 800 nm; 970 nm; ⁴S_3/2 level; ⁴S_3/2→⁴I_15/2 transition; CW diode laser; Er-doped multimode fluoride glass ZBLAN optical fibers; Er-doped singlemode fluoride glass ZBLAN optical fibers; ZBLAN:Er; ZrF4-BaF2-LaF3-AlF3-NaF:Er; cooperative ion-pair interaction; energy transfer mechanism; excited state absorption; fluorescence spectrum; ground state absorption; infrared excitation; infrared-to-visible upconversion; Diode lasers; Doped fiber amplifiers; Electromagnetic wave absorption; Energy exchange; Erbium; Fluorescence; Glass; Laser excitation; Optical fibers; Stationary state;

fLanguage

English

Publisher

ieee

Conference_Titel

Transparent Optical Networks, 1999. International Conference on

Conference_Location

Kielce

Print_ISBN

0-7803-5637-3

Type

conf

DOI

10.1109/ICTON.1999.781848

Filename

781848