2021/06/15 by Philippe Guay, Guay, Philippe, Alex Tourigny-Plante +9
Engineering · Physics and Astronomy · #Advanced Fiber Laser Technologies #FOS: Physical sciences #Instrumentation and Detectors (physics.ins-det) #Mechanical and Optical Resonators #Optics (physics.optics) #Photonic and Optical Devices #physics.ins-det #physics.optics
paper · pdf · doi:10.48550/arxiv.2106.08304
5 pages, 8 figures
arxiv created 2021/06/15 · openalex publication_date 2021/06/15 · arxiv updated 2021/06/16 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/01
The impact of photodetector nonlinearity on dual-comb spectrometers is described and compared to that of Michelson-based Fourier transform spectrometers (FTS). The optical sampling occurring in the dual-comb approach, being the key difference with FTS, causes optical aliasing of the nonlinear spectral artifacts. Measured linear and nonlinear interferograms are presented to validate the model. Absorption lines of H13CN are provided to understand the impact of nonlinearity on spectroscopic measurements.