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Efficient generation of red light by frequency doubling in a periodically-poled nearly-stoichiometric LiTaO3 crystal

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8 Author(s)
Hu, X.P. ; National Laboratory of Solid State Microstructures, Nanjing University, Nanjing, 210093, China ; Wang, X. ; He, J.L. ; Fan, Y.X.
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An efficient generation of red light in a periodically-poled nearly-stoichiometric LiTaO3 (PPSLT) by extracavity single-pass frequency doubling of a diode-pumped, Q-switched Nd:YVO4 laser at 1342 nm was realized. An average power of 1.4 W of the 671 nm red light is obtained at the fundamental power of ∼2.8 W with the conversion efficiency of 50%. The high conversion efficiency and steady output of red light indicate that the thick PPSLT is a competitive candidate for frequency conversion in order to construct a compact all-solid-state red laser.

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Applied Physics Letters  (Volume:85 ,  Issue: 2 )