Title :
Experimental determination of the emission cross-section spectrum of the pump transition of praseodymium
Author :
Krummrich, Peter M.
Author_Institution :
Inst. fur Hochfrequenztech., Tech. Univ. Braunschweig, Germany
Abstract :
A novel technique is presented which allows the experimental determination of the emission cross-section spectrum of the pump transition of praseodymium in ZBLAN glass. The technique is based on measuring the population density of the upper level as a function of pump power as well as wavelength. The emission and absorption cross-section spectra of the pump transition are calculated from the measured population density data. The emission cross-section spectrum gained by this technique is an important step towards more accurate modelling of Pr/sup 3+/-doped fiber amplifiers.<>
Keywords :
barium compounds; fibre lasers; lanthanum compounds; laser theory; laser transitions; modelling; optical glass; optical pumping; praseodymium; sodium compounds; stimulated emission; zirconium compounds; Pr/sup 3+/-doped fiber amplifiers; ZBLAN glass; ZBLAN:Pr; ZrF4-BaF2-LaF3-AlF3-NaF:Pr; absorption cross-section spectra; accurate modelling; emission cross-section spectra; emission cross-section spectrum; measured population density data; population density; praseodymium; pump power; pump transition; upper level; Absorption; Bleaching; Density measurement; Doped fiber amplifiers; Glass; Laser excitation; Numerical models; Power measurement; Radiation detectors; Wavelength measurement;
Journal_Title :
Photonics Technology Letters, IEEE
