DocumentCode :
1459051
Title :
355-nm UV Generation by Intracavity Frequency Tripled Passively 
-Switched Nd:YAG/Cr 
:YAG
Author :
Zhang, Baitao ; Du, Nan ; He, Jingliang ; Liu, Shande ; Yang, Jianfei ; Huang, Haitao
Author_Institution :
State Key Lab. of Crystal Mater., Shandong Univ., Ji´´nan, China
Volume :
23
Issue :
10
fYear :
2011
fDate :
5/15/2011 12:00:00 AM
Firstpage :
612
Lastpage :
614
Abstract :
In this letter, intracavity frequency-tripling of a diode-end-pumped passively Q-switched Nd:YAG/Cr4+:YAG composite laser has been demonstrated for the first time. Under the absorbed pump power of 7.2 W, the maximum UV output power of 110 mW is obtained with the beam quality parameter M2 of 2.95. The minimum pulsewidth and the highest repetition rate are 23.9 ns and 19.6 kHz, respectively. The corresponding single pulse energy and pulse peak power are 5.6 μJ and 0.23 kW. The fluctuation of the average output power at 110 mW within an hour operation is tested and determined to be 4.7%.
Keywords :
Q-switching; chromium; neodymium; optical harmonic generation; solid lasers; UV generation; UV output power; YAG:Nd-YAG:Cr; beam quality parameter; diode end-pumped laser; energy 5.6 muJ; frequency 19.6 kHz; intracavity frequency tripling; passively Q-switched laser; power 7.2 W to 0.23 kW; pulse peak power; pulsewidth; single pulse energy; time 23.9 ns; Laser beams; Laser excitation; Optimized production technology; Power generation; Power lasers; Pump lasers; Semiconductor lasers; $hbox{Nd}:hbox{YAG/Cr}^{4+}:hbox{YAG}$ $Q$
fLanguage :
English
Journal_Title :
Photonics Technology Letters, IEEE
Publisher :
ieee
ISSN :
1041-1135
Type :
jour
DOI :
10.1109/LPT.2011.2119395
Filename :
5720265
Link To Document :
