Acta Optica Sinica, Volume. 40, Issue 15, 1519002(2020)
Injection Pulse-Seeded Terahertz-Wave Parametric Generator Based on MgO∶CLN Crystal
Congruent lithium niobate (CLN) is the most commonly used terahertz parametric gain crystal. The terahertz-wave parametric source based on the CLN crystal has the advantages of high terahertz-wave output energy and continuous tunability, but its tuning range is relatively narrow, generally during 0.6-3 THz, which limits its practical applications. Therefore, an injection pulse-seeded terahertz-wave parametric generator based on 5% mol MgO∶CLN crystal is proposed. The terahertz-wave frequency tuning range is 1-4 THz, and the maximum output energy is 1.02 μJ at 2.0 THz. The 3 dB bandwidth of the output terahertz wave is 1.94 THz, accounting for 64.67% of the tuning range. The terahertz radiation source has the characteristics of broadband and flat gain, and has higher value in practical applications.
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Degang Xu, Chao Yan, Gang Nie, Longhuang Tang, Kai Chen, Yuye Wang, Jianquan Yao. Injection Pulse-Seeded Terahertz-Wave Parametric Generator Based on MgO∶CLN Crystal[J]. Acta Optica Sinica, 2020, 40(15): 1519002
Category: Nonlinear Optics
Received: Apr. 13, 2020
Accepted: May. 6, 2020
Published Online: Aug. 14, 2020
The Author Email: Wang Yuye (yuyewang@tju.edu.cn)