Effects of various room temperatures on terahertz radiation via optical parametric oscillator

Nan Huang; Hongjun Liu; Qibing Sun

doi:10.1117/1.OE.53.6.066112

25 June 2014 Effects of various room temperatures on terahertz radiation via optical parametric oscillator

Nan Huang, Hongjun Liu, Qibing Sun

Author Affiliations +

Optical Engineering, Vol. 53, Issue 6, 066112 (June 2014). https://doi.org/10.1117/1.OE.53.6.066112

Abstract

A terahertz (THz)-wave parametric oscillator (TPO) pumped by a stable and single-longitudinal mode Q-switched Nd:YAG laser under various room temperatures is demonstrated. It is based on a cavity TPO architecture allowing stable single-resonance operation and low oscillation threshold. The output results, including the effects of the room temperature on this wavelength-agile TPO with a MgO:LiNbO₃ crystal, indicate that the performance of TPO under the lower temperature is better. We obtain a widely tunable THz-wave source in the range 104 to 226 μm via tuning the cavity flexibly under different room temperatures. The peak power of the THz wave reaches 220 mW at the wavelength of 146.2 μm when the room temperature is 20°C. The peak power of the THz wave decreases to 48 mW when the room temperature rises from 20°C to 25°C.

Citation Download Citation

Nan Huang, Hongjun Liu, and Qibing Sun "Effects of various room temperatures on terahertz radiation via optical parametric oscillator," Optical Engineering 53(6), 066112 (25 June 2014). https://doi.org/10.1117/1.OE.53.6.066112

Published: 25 June 2014

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