Understanding photodetection nonlinearity in dual-comb interferometry
| Autor: | Vincent Michaud-Belleau, Ariane Gouin, Philippe Guay, Nicolas Bourbeau Hébert, Alex Tourigny-Plante, Jérôme Genest |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Physics
Spectrometer business.industry 010401 analytical chemistry Astrophysics::Instrumentation and Methods for Astrophysics Physics::Optics Photodetector Photodetection 01 natural sciences Atomic and Molecular Physics and Optics Fourier transform spectroscopy 0104 chemical sciences Electronic Optical and Magnetic Materials 010309 optics Free induction decay Nonlinear system Interferometry Optics Aliasing 0103 physical sciences Electrical and Electronic Engineering business Astrophysics::Galaxy Astrophysics |
| Zdroj: | OSA Continuum. 4:2460 |
| ISSN: | 2578-7519 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|