Journal
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS
Volume 30, Issue 2, Pages 302-305Publisher
OPTICAL SOC AMER
DOI: 10.1364/JOSAB.30.000302
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Funding
- National Natural Science Foundation of China [61275050]
- Xiamen Scientific & Technologic Project [3502Z20113004]
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We report continuous-wave laser operation at 698 nm in Pr3+-doped LiYF4 crystal using an InGaN laser diode emitting at 444 nm with a maximum output power of 760 mW. By suppressing the oscillation at 640 and 721 nm, a maximum output power of 156 mW at 698 nm was obtained in a single transverse mode with a slope efficiency as high as 48.7%. The beam quality factors M-2 in the x and y directions were measured to be 1.4 and 1.2, respectively. (C) 2013 Optical Society of America
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