Abbreviated Journal Title
Appl. Phys. Lett.
Room-Temperature; Fiber Laser; Crystals; Emission; Physics; Applied
We report efficient room-temperature continuous-wave intracavity frequency doubling of an upconversion-pumped Er(1%):YLiF4 laser at 850 nm. A titanium-sapphire laser was used for excitation of the S-4(3/2)-- > I-4(13/2) transition in erbium. The maximum laser output power at 850 nm was 1200 mW. Intracavity frequency doubling the fundamental wave utilizing lithium triborate as nonlinear crystal yielded a maximum second-harmonic output power of 540 mW at 425 nm.
Applied Physics Letters
Möbert, P. E. -A.; Heumann, E.; Huber, G.; and Chai, B. H. T., "540 mW of blue output power at 425 nm generated by intracavity frequency doubling an upconversion-pumped Er3+: YLiF4 laser" (1998). Faculty Bibliography 1990s. 2367.