Journal
IEEE PHOTONICS JOURNAL
Volume 5, Issue 4, Pages -Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JPHOT.2013.2271719
Keywords
Pr-doped lasers; intracavity frequency doubling; ultraviolet lasers
Funding
- National Natural Science Foundation of China [61275050]
- Specialized Research Fund for the Doctoral Program of Higher Education [20120121110034]
- Xiamen Scientific and Technologic Project [3502Z20113004]
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We report a continuous-wave ultraviolet laser at 349 nm obtained by intracavity frequency doubling of a diode-pumped Pr3+-doped LiYF4 laser. Power scaling of lasers at 698-nm fundamental wavelength was realized using an InGaN laser diode with a maximum output power of 850 mW and a 5-mm-long 0.5 a.t. % laser crystal. The maximum output power at 698 nm was 215 mW. With beta barium borate crystal employed as the nonlinear medium, 33 mW of output power at 349 nm has been achieved.
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