Related Experiment Video
Updated: Feb 11, 2026

Continuous-wave Thulium Laser for Heating Cultured Cells to Investigate Cellular Thermal Effects
Published on: June 30, 2017
Dual-comb spectroscopy with a single free-running thulium-doped fiber laser
Abstract:
We demonstrate dual-comb spectroscopy in the vicinity of 2 µm wavelength based on a single dual-wavelength dual-comb Thulium-doped fiber laser. The shared laser cavity ensures passively maintained mutual coherence between the two combs due to common mode environmental noise rejection. In a proof-of-principle experiment, the absorption characteristics caused by the water in the optical path that composes the dual-comb spectrometer are measured. The retrieved spectral positions of the water absorption dips match with the HITRAN database.
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