14 August 1998 Realizing intracavity frequency doubling and Q switching by KTP
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The electro-optic characteristics of the KTP crystal are analyzed in detail and Q-switched operation of a diode-laser- pumped Nd:YVO4 laser is reported using an intracavity KTP crystal. The KTP crystal was used as both an electro-optic Q- switcher and a frequency-doubling crystal in type II phase matching for generating pulsed green beams. Compared with the conventional frequency-doubling and Q-switching configuration where a Q-switcher and a frequency-doubling crystal was needed, low loss and high efficiency characteristics were realized by only using KTP crystal in our experimental setup. With the new type of KTP crystal doped particular element, the great green pulsed output was obtained continuously for a long time with no sign of electrochromic damage. In this paper, we demonstrated a relatively new and compact intracavity frequency-doubled and Q-switched Nd:YVO4 laser. The short- cavity laser was longitudinally pumped with a diode laser.
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Yujing Huo, Yujing Huo, Fei Chen, Fei Chen, Shufang He, Shufang He, Dezhong Shen, Dezhong Shen, Xiaoyan Ma, Xiaoyan Ma, Yong Lu, Yong Lu, "Realizing intracavity frequency doubling and Q switching by KTP", Proc. SPIE 3556, Electro-Optic and Second Harmonic Generation Materials, Devices, and Applications II, (14 August 1998); doi: 10.1117/12.318265; https://doi.org/10.1117/12.318265

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