[11a-E219-1~5] 4.3 Laser sources and Laser applications

10:00 〜 10:15英語発表

[11a-E219-1] Gas spectroscopy using dispersion-tuned wavelength-swept fiber laser

〇Hongxu Chen^1,2, Maolin Dai^2,3, Yifan Ma^1,2, Naoki Yamaguchi^1,2, Sze Yun Set^1,2, Shinji Yamashita^1,2 (1.Tokyo Univ., 2.Rcast, 3.GSFS)

キーワード：

fiber laser、pulse laser、spectral measurement

In this work, we proposed a high-sensitivity and high-resolution system using a dispersion-tuned wavelength-swept fiber laser. The laser achieves a sweeping range of approximately 50 nm, a sweeping rate of 5 kHz, and a static linewidth of about 0.06 nm. By using its non-mechanical, broadband, and high-speed sweeping, the absorption spectra of a hydrogen cyanide gas cell is successfully retrieved with a high-bandwidth photodetector.