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Optical Engineering

Route of delivering 40-fs ultra-short laser pulses for gating photoconductive antenna in fiber-coupled terahertz time-domain spectroscopy
Author(s): Jia Liu; Wen-Hui Fan; Long-Chao Chen
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Paper Abstract

A route of delivering ultra-short laser pulses through a polarization-maintaining single-mode fiber has been investigated experimentally. The group velocity dispersion was well compensated, and the self-phase modulation was depressed in fiber. Finally, a 40-fs laser pulse with the energy of 70 pJ was obtained at the output of the transmitted fiber with the length up to 4 m in our fiber-delivery system. The route exhibits distinguishing features of compactness and flexibility, and this 40-fs laser pulse can be used not only to generate broadband terahertz (THz) radiation but also to detect broadband THz radiation, which is much better than the 150-fs laser pulse used previously.

Paper Details

Date Published: 2 August 2012
PDF: 6 pages
Opt. Eng. 51(8) 085001 doi: 10.1117/1.OE.51.8.085001
Published in: Optical Engineering Volume 51, Issue 8
Show Author Affiliations
Jia Liu, Xi'an Institute of Optics and Precision Mechanics (China)
Wen-Hui Fan, Xi'an Institute of Optics and Precision Mechanics (China)
Long-Chao Chen, Xi'an Institute of Optics and Precision Mechanics (China)

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