[CTuP6B] MIR and THz Comb

[CTuP6B-07] Mid-infrared Dual-comb Spectroscopy using Bidirectional Dual-comb Fiber Laser for Greenhouse N2O Gas Detection

*Jiajie Li¹, Akifumi Asahara¹, Haochen Tian^1,2, Kazumichi Yoshii³, Takashi Kato¹, Yoshiaki Nakajima^1,4, Kaoru Minoshima^1,3 (1. The University of Electro-Communications (Japan), 2. Research Fellow of the Japan Society for the Promotion of Science (JSPS) (Japan), 3. pLED Tokushima University pLED (Japan), 4. Toho University (Japan))

[Presentation Style] Onsite

We demonstrate mid-infrared dual-comb gas spectroscopy using a bidirectional dual-comb fiber laser. Without complex tight-locking, we detect N2O absorption lines consistent with HITRAN database. The developed scheme is useful for practical greenhouse gas detection.