Title :
Pulsed solid state UV-lasers at 374 nm and 280 nm
Author :
Kimmelma, O. ; Tittonen, I.
Author_Institution :
Dept. of Micro & Nanosci., Helsinki Univ. of Technol., Helsinki, Finland
Abstract :
A method to realize UV lasers at 374 nm and 280 nm is demonstrated. A pump laser for the SHG and SFG processes is a Nd:YAG laser at 1123 nm. The laser uses a Cr:YAG crystal as a passive Q-switch. To the best of our knowledge, this laser has not earlier been used to produce UV wavelengths. The laser is frequency doubled using a KTA crystal. Frequency conversions to 374 nm and 280 nm light were realized with BIBO and BBO crystals, respectively. The peak powers at 280 nm and 374 nm were 100 W and 310 W, and pulse lengths 6.4 ns and 7.7 ns respectively.
Keywords :
Q-switching; barium compounds; bismuth compounds; chromium; neodymium; optical harmonic generation; optical pumping; solid lasers; BBO crystals; BIBO crystals; BaB2O4; BiB3O6; KTA crystal; YAG:Cr; YAG:Nd; frequency conversions; frequency doubling; passive Q-switch; pulsed solid state UV-lasers; pump laser; second harmonic generation; sum frequency generation; wavelength 1123 nm; wavelength 280 nm; wavelength 374 nm; Fiber lasers; Laser excitation; Laser modes; Laser transitions; Optical fibers; Power lasers; Pump lasers; Quantum cascade lasers; Semiconductor lasers; Solid state circuits;
Conference_Titel :
Lasers and Electro-Optics 2009 and the European Quantum Electronics Conference. CLEO Europe - EQEC 2009. European Conference on
Conference_Location :
Munich
Print_ISBN :
978-1-4244-4079-5
Electronic_ISBN :
978-1-4244-4080-1
DOI :
10.1109/CLEOE-EQEC.2009.5191996
