Work

Development of a portable optical frequency comb for open-path measurement based on NALM mode-locked fiber laser

Year: 2025

Type: article

Abstract: We developed a portable optical frequency comb for open-path measurements using a polarization-maintaining nonlinear amplifying loop mirror-type fiber comb as a light source. The output had a power of 140 mW and a broadband near-infrared spectrum from 1100 to 2300 nm, allowing operation at distances up to 90 m. Furthermore, open-path measurements were performed at a propagation distance of 40 m. The average power and spectrum after open-path propagation were sufficient for spectroscopic measurements. Finally, we measured optical heterodyne signals under open-path propagation, demonstrating that the developed portable comb can be applied to dual-comb systems.

Source: Japanese Journal of Applied Physics

DOI: 10.35848/1347-4065/ae0ef2

Authors: Ryo Mitsumoto, Kazumichi Yoshii, Shin-Ichi Yamamoto

Institution: Ryukoku University

Language: English

Topic: Advanced Fiber Laser Technologies

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $2,210

Funder: Japan Science and Technology Agency