Dual-comb spectroscopy for on-site spectroscopic detection

Yan Yang; Xinda Liu; Pengpeng Zhang; Qiuying Ma; Siyu Mou; Kai Ni

doi:10.1117/12.2687353

27 November 2023 Dual-comb spectroscopy for on-site spectroscopic detection

Yan Yang, Xinda Liu, Pengpeng Zhang, Qiuying Ma, Siyu Mou, Kai Ni

Proceedings Volume 12760, Advanced Lasers, High-Power Lasers, and Applications XIV; 127601C (2023) https://doi.org/10.1117/12.2687353
Event: SPIE/COS Photonics Asia, 2023, Beijing, China

Conference Poster

Abstract

Dual-Comb Spectroscopy (DCS) is a novel high-performance spectral measurement technology. However, conventional DCS systems often rely on optical frequency comb seed sources, which have limited output power and are not capable of withstanding the substantial losses encountered during on-site detection. Additionally, their spectral range is often narrow and may not be suitable for the target gases. In this work, we demonstrate a high-power, wide-spectral-range dual-comb spectroscopy measurement system for on-site spectral detection. The system comprises two optical frequency combs with close repetition rates, utilizing erbium-doped fiber amplifiers and dispersion compensating fibers for power amplification and broadening of the spectrum. We successfully detect absorption spectra of multiple gases, demonstrating good agreement with the simulated spectrum from the HITRAN standard database. The spectral resolution can reach sub-picometer-level (approximately 0.45 pm). This work shows the potential of dual-comb spectroscopy technology transitioning from laboratory research to industrial on-site applications.

(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Yan Yang, Xinda Liu, Pengpeng Zhang, Qiuying Ma, Siyu Mou, and Kai Ni "Dual-comb spectroscopy for on-site spectroscopic detection", Proc. SPIE 12760, Advanced Lasers, High-Power Lasers, and Applications XIV, 127601C (27 November 2023); https://doi.org/10.1117/12.2687353

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