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530-mW quasi-white-light generation using all-solid-state laser technique

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10 Author(s)
Li, H.X. ; National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing 210093, People’s Republic of China ; Fan, Y.X. ; Xu, P. ; Zhu, S.N.
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We report a quasi-white-light laser, which was generated by an all-solid-state laser technique. The approach is to use a cascaded optical superlattice in a LiTaO3 crystal to directly frequency double and triple a diode-pumped, Q-switched dual-wavelength Nd:YVO4 laser. Three primary color lights, red at 671 nm, green at 532 nm, and blue at 447 nm, were simultaneously generated in a proper proportion, forming a quasicontinuous, quasi-white-light laser with a maximum output power of 530 mW under a pump power of 18 W. From the result, a more effective quasi-white-light output can be anticipated if the superlattice is fabricated in a stoichiometric LiTaO3 crystal and the double resonant technique is further optimized.

Published in:

Journal of Applied Physics  (Volume:96 ,  Issue: 12 )