Widely tunable terahertz parametric oscillator based on MgO-doped near-stoichiometric LiNbO3 crystal

Longhuang Tang; Yuye Wang; Degang Xu; Zhen Yang; Chao Yan; Wentao Xu; Pan Duan; Yixin He; Jia Shi; Meitong Nie; Jianquan Yao

doi:10.1117/12.2245676

3 November 2016 Widely-tunable terahertz parametric oscillator based on MgO-doped near-stoichiometric LiNbO₃ crystal

Longhuang Tang, Yuye Wang, Degang Xu, Zhen Yang, Chao Yan, Wentao Xu, Pan Duan, Yixin He, Jia Shi, Meitong Nie, Jianquan Yao

Author Affiliations +

Proceedings Volume 10030, Infrared, Millimeter-Wave, and Terahertz Technologies IV; 100301O (2016) https://doi.org/10.1117/12.2245676
Event: SPIE/COS Photonics Asia, 2016, Beijing, China

Abstract

A widely tunable, high-energy terahertz wave parametric oscillator based on 1 mol. % MgO-doped near-stoichiometric LiNbO₃ crystal has been proposed with 1064 nm nanosecond pulsed laser pumping. The tunable range of 1.16 to 4.64 THz was obtained. Under the pump energy of 150 mJ/pulse, the maximum THz wave output energy of 12.56 μJ was achieved at 1.88 THz, corresponding to the THz wave conversion efficiency of 7.61×10^-5 and the photon conversion efficiency of 1.14%, respectively. Moreover, the THz half maximum (FWHM) beam diameters of MgO:SLN TPO measured at 4 cm from the output surface were 7.42 mm and 6.06 mm in the vertical and horizontal directions, respectively.

Citation Download Citation

Longhuang Tang, Yuye Wang, Degang Xu, Zhen Yang, Chao Yan, Wentao Xu, Pan Duan, Yixin He, Jia Shi, Meitong Nie, and Jianquan Yao "Widely-tunable terahertz parametric oscillator based on MgO-doped near-stoichiometric LiNbO₃ crystal", Proc. SPIE 10030, Infrared, Millimeter-Wave, and Terahertz Technologies IV, 100301O (3 November 2016); https://doi.org/10.1117/12.2245676

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