Laser & Optoelectronics Progress, Volume. 49, Issue 9, 91405(2012)
Blue Laser Pumped Intracavity Frequency Doubling Pr:KYF Ultraviolet Laser at 305 nm
An all-solid-state blue laser (471 nm) pumped Pr:KYF laser is demonstrated. The incident pump power threshold is 0.4 W. With an incident pump power of 2.5 W, the maximum output power is 212 mW. Moreover, intracavity second-harmonic generation (SHG) is also achieved with a maximum ultraviolet power of 11 mW by using a β-BaB2O4 (BBO) nonlinear crystal. The system emits nearly TEM00 mode with beam quality factor M2=1.25 measured by the knife-edge technique. The optical-to-optical conversion efficiency is 4.4%, and the fluctuation of the output power is about 4.3% in 30 min. The spectra of 305 nm laser are detected using the USB-4000 high resolution spectrometer.
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Ni Tianyi, Li Yongliang, Zhang Tianyi, Ruan Renqiu. Blue Laser Pumped Intracavity Frequency Doubling Pr:KYF Ultraviolet Laser at 305 nm[J]. Laser & Optoelectronics Progress, 2012, 49(9): 91405
Category: Lasers and Laser Optics
Received: Apr. 19, 2012
Accepted: --
Published Online: Jul. 13, 2012
The Author Email: Tianyi Ni (ntyjoy@126.com)
DOI:091405