Simultaneously efficient blue and red light generations in a periodically poled LiTaO[sub 3]

Luo, G. Z.; Zhu, S. N.; He, J. L.; Zhu, Y. Y.; Wang, H. T.; Liu, Z. W.; Zhang, C.; Ming, N. B.
May 2001
Applied Physics Letters;5/14/2001, Vol. 78 Issue 20, p3006
Academic Journal
Generations of efficient blue light at 447 nm and red light at 671 nm were achieved by frequency doubling and tripling of a diode-pumped, Q-switched 1342 nm Nd:YVO[sub 4] laser with a periodically poled LiTaO[sub 3] (PPLT). The blue light at 447 nm was generated by sum-frequency mixing of the fundamental at 1342 nm with the generated second harmonic at 671 nm. The first-order and third-order reciprocals of the PPLT compensated the phase mismatches of second-harmonic and sum-frequency processes, respectively, making them quasiphase matched. The resulting averaged blue light power of 51 mW and red light power of 207 mW under the averaged fundamental power of 500 mW indicate that the PPLT may be used to construct an all-solid-state blue and red dual wavelength laser. © 2001 American Institute of Physics.


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