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Optical Engineering

Effects of various room temperatures on terahertz radiation via optical parametric oscillator
Author(s): Nan Huang; Hongjun Liu; Qibing Sun
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Paper 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.

Paper Details

Date Published: 25 June 2014
PDF: 5 pages
Opt. Eng. 53(6) 066112 doi: 10.1117/1.OE.53.6.066112
Published in: Optical Engineering Volume 53, Issue 6
Show Author Affiliations
Nan Huang, Xi'an Institute of Optics and Precision Mechanics (China)
Hongjun Liu, Xi'an Institute of Optics and Precision Mechanics (China)
Qibing Sun, Xi'an Institute of Optics and Precision Mechanics (China)


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