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Dual-comb spectroscopy in THz region using a single free-running dual-wavelength mode-locked fiber laser
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Paper Abstract

Terahertz dual-comb spectroscopy (THz-DCS) has the potential to be used as universal THz spectroscopy with high spectral resolution, high spectral accuracy, and broad spectral coverage; however, the requirement for dual stabilized femtosecond lasers hampers its versatility due to the bulky size, high complexity, and high cost. We here report the first demonstration of dual THz comb spectroscopy using a single free-running fiber laser. While greatly reducing the size, complexity, and cost of the laser source, THz-DCS maintains the spectroscopic performance comparable to a system equipped with dual stabilized fiber lasers, and can be effectively applied to gas spectroscopy.

Paper Details

Date Published: 9 November 2018
PDF: 6 pages
Proc. SPIE 10826, Infrared, Millimeter-Wave, and Terahertz Technologies V, 108260U (9 November 2018); doi: 10.1117/12.2500571
Show Author Affiliations
Kazuki Nitta, Tokushima Univ. (Japan)
Japan Science and Technology Agency (Japan)
Chen Jie, Tokushima Univ. (China)
Beihang Univ. (China)
Tatsuya Mizuguchi, Tokushima Univ. (Japan)
Japan Science and Technology Agency (Japan)
Guoqing Hu, Tokushima Univ. (China)
Beihang Univ. (China)
Zheng Zheng, Beihang Univ. (China)
Takeshi Yasui, Tokushima Univ. (Japan)
Japan Science and Technology Agency (Japan)


Published in SPIE Proceedings Vol. 10826:
Infrared, Millimeter-Wave, and Terahertz Technologies V
Cunlin Zhang; Xi-Cheng Zhang; Masahiko Tani, Editor(s)

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