Jianquan Yao, Yuye Wang *, Degang Xu, Kai Zhong, Zhongyang Li, and Peng Wang
College of Precision Instrument and Optoelectronics Engineering,
Institute of Laser and Optoelectronics, Tianjin University, Tianjin, 300072;
Key Laboratory of Optoelectronic Information and Technical Science (Ministry of Education),
Tianjin University, Tianjin, 300072
* Tel: 86-22-27407676; Fax: 86-22-27406436; Email: firstname.lastname@example.org
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Abstract: This paper demonstrates an intracavity pumped by a THz optical oscillator from a diode-side-pumped Q-switched Nd:YAG laser. Based on a non-collinear phase matching geometry in the nonlinear crystal MgO:LiNbO3, high-energy, low-threshold, coherent tunable Stokes light is obtained by changing the angles between the resonated idler wave and the pump wave, which means that the widely tunable, high-energy, coherent THz radiation can be generated. The tuning range for Stokes wave is from 1069.4 to 1073.4 nm, corresponding to the THz frequency range of 1.4-2.5 THz. Furthermore, the phenomenon of the coherent tunable second-order Stokes light scattering is also observed.
Keywords: Terahertz generation, Nonlinear optics, Parametric oscillators and amplifiers, Frequency conversion, Lasers, Diode-pumped.
Acknowledgments: The work was supported by the Research Fund for the Doctoral Programme of Higher Education under Grant No. 20070420118, Tianjin Municipal Primary Application and Frontier Technology Research Plan under Grant No. 07JCYBJC06200, National Basic Research Programme of China under Grant No. 2007CB310403 and National Natural Science Foundation of China under Grant No. 60801017.
Cite this article:
Jianquan Yao, Yuye Wang, Degang Xu, Kai Zhong, Zhongyang Li, and Peng Wang. High-energy, continuously tunable intracavity terahertz-wave parametric oscillator[J]. International Journal of Terahertz Science and Technology, 2009, Vol.2, No.2: 49-56. DOI:10.11906/TST.049-056.2009.06.06