Route of delivering 40-fs ultra-short laser pulses for gating photoconductive antenna in fiber-coupled terahertz time-domain spectroscopy

Jia Liu; Wen-Hui Fan; Long-Chao Chen

doi:10.1117/1.OE.51.8.085001

2 August 2012 Route of delivering 40-fs ultra-short laser pulses for gating photoconductive antenna in fiber-coupled terahertz time-domain spectroscopy

Jia Liu, Wen-Hui Fan, Long-Chao Chen

Author Affiliations +

Optical Engineering, Vol. 51, Issue 8, 085001 (August 2012). https://doi.org/10.1117/1.OE.51.8.085001

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.

Citation Download Citation

Jia Liu, Wen-Hui Fan, and Long-Chao Chen "Route of delivering 40-fs ultra-short laser pulses for gating photoconductive antenna in fiber-coupled terahertz time-domain spectroscopy," Optical Engineering 51(8), 085001 (2 August 2012). https://doi.org/10.1117/1.OE.51.8.085001

Published: 2 August 2012

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