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Proceedings Paper

Theoretical study on the generation of THz sub-comb via surface-emitted optical rectification of ultra-short pulse in periodically poled lithium niobate
Author(s): Pengxiang Liu; Degang Xu; Jianquan Yao
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Paper Abstract

In this paper, we proposed a method for THz sub-comb generation based on optical rectification. The result of our calculation indicated that THz pulse train, generated by surface-emitted optical rectification (OR) of femtosecond (fs) laser pulse in a periodically poled lithium niobate (PPLN), has a comb-like spectrum. The theoretical analysis was based on radiating antenna model. The characteristic of this THz sub-comb was analyzed both in frequency and time domain. The mechanism of this phenomenon was explained both by spectral interference between early and late pulses and by high-order quasi phase matching. THz sub-comb generated by this method can cover a large bandwidth and have a wide free spectral range.

Paper Details

Date Published: 4 November 2010
PDF: 6 pages
Proc. SPIE 7854, Infrared, Millimeter Wave, and Terahertz Technologies, 78543E (4 November 2010); doi: 10.1117/12.868599
Show Author Affiliations
Pengxiang Liu, Tianjin Univ. (China)
Key lab. of Opto-electronic Information Science and Technology (China)
Degang Xu, Tianjin Univ. (China)
Key lab. of Opto-electronic Information Science and Technology (China)
Jianquan Yao, Tianjin Univ. (China)
Key lab. of Opto-electronic Information Science and Technology (China)


Published in SPIE Proceedings Vol. 7854:
Infrared, Millimeter Wave, and Terahertz Technologies
Cunlin Zhang; Xi-Cheng Zhang; Peter H. Siegel; Li He; Sheng-Cai Shi, Editor(s)

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