Open AccessFrequency-doubling of a high power cesium vapor laser using a PPKTP crystal
Author(s) -
B. V. Zhdanov,
Yalin Lu,
M. K. Shaffer,
Wooddy S. Miller,
Dallas M. Wright,
R. J. Knize
Publication year - 2008
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.16.017585
Subject(s) - optics , laser , materials science , second harmonic generation , pulse duration , wavelength , diode , crystal (programming language) , laser linewidth , optoelectronics , caesium , continuous wave , physics , computer science , programming language , nuclear physics
447.3 nm blue light generation was demonstrated through direct frequency doubling a continuous-wave Cesium vapor lasers 894.6 nm output using a PPKTP nonlinear crystal. The diode-pumped Cs vapor laser has an output power as large as 10 W with a very narrow emission linewidth less than 10 GHz. The PPKTP crystal is about 30 mm long and has a moderate acceptance wavelength bandwidth. The second harmonic wave generation efficiency achieved is about 4.4 %/W. Power depletion in second harmonic pulses, which relates to the absorption related thermal effects, was observed when using high pump power, long pulse duration, or high repetition rate.