DocumentCode :
1358305
Title :
Influence of Excited-State-Energy Upconversion on Pulse Shape in Quasi-Continuous-Wave Diode-Pumped Er:LiYF 
Lasers
Author :
Wetter, Niklaus Ursus ; Deana, Alessandro Melo ; Ranieri, Izilda Marcia ; Gomes, Laércio ; Baldochi, Sonia Licia
Author_Institution :
Centro de Lasers e Aplic., Inst. de Pesquisas Energeticas e Nucl., Sao Paulo, Brazil
Volume :
46
Issue :
1
fYear :
2010
Firstpage :
99
Lastpage :
104
Abstract :
In this paper, we demonstrate the temporal dependency of an Er:LiYF4 laser on the upper laser level energy transfer upconversion. By spectroscopic measurements and numerical simulations, we calculate a value for this upconversion of 9 × 10-17 cm3/s. We also report a 60% higher average output power for short-pulse duration, which is complementary to some earlier findings.
Keywords :
erbium; excited states; laser transitions; lithium compounds; optical pulse generation; optical pulse shaping; optical pumping; solid lasers; LiYF4:Er; energy transfer upconversion; excited state; pulse shape; quasicontinuous wave; Diodes; Energy exchange; Fiber lasers; Laser excitation; Laser modes; Laser transitions; Pulse shaping methods; Pump lasers; Shape; Stimulated emission; Diode-pumped lasers; infrared lasers; lasers for biomedical applications; rare earth lasers;
fLanguage :
English
Journal_Title :
Quantum Electronics, IEEE Journal of
Publisher :
ieee
ISSN :
0018-9197
Type :
jour
DOI :
10.1109/JQE.2009.2028305
Filename :
5353807
Link To Document :
