Abstract.
An intracavity frequency-doubled 10%Nd : LaSc3(BO3)4 (Nd : LSB) laser was investigated in different resonator configurations and in different operation modes under continuous wave (cw) and quasi-cw laser-diode pumping. With a Cr4+ : YAG passive modulator and a KTP crystal the second-harmonic output power at 531 nm amounted to 190 mW in Q-switched TEM00 mode at 750 mW of pump power. In a sandwich resonator, when all the optical elements were in direct contact with each other, 0.8 W of green output power was obtained in cw mode under 2.7 W of pump power with a slope efficiency of 44%. In the same setup under fiber-coupled diode-laser array pumping (5.6 W of incident power), 1.2 W of green output power was achieved in cw mode and 1.4 W in quasi-cw mode.
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Received: 30 April 1996/Revised version: 1 July 1996
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Ostroumov, V., Heine, F., Kück, S. et al. Intracavity frequency-doubled diode-pumped Nd : LaSc3(BO3)4 lasers. Appl Phys B 64, 301–305 (1997). https://doi.org/10.1007/s003400050177
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DOI: https://doi.org/10.1007/s003400050177