Toward free-running operation of dual-comb fiber lasers for methane sensing
| Autor: | Philippe Guay, Khaoula Fdil, Jérôme Genest, Alex Tourigny-Plante, Nicolas Bourbeau Hébert, Vincent Michaud-Belleau, Steeve Larouche |
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| Rok vydání: | 2020 |
| Předmět: |
Materials science
business.industry Near-infrared spectroscopy Physics::Optics Beat (acoustics) Laser 01 natural sciences Atomic and Molecular Physics and Optics Methane law.invention 010309 optics Nonlinear system chemistry.chemical_compound Optics chemistry law Fiber laser 0103 physical sciences Broadband Physics::Atomic Physics Electrical and Electronic Engineering business Spectroscopy Engineering (miscellaneous) |
| Zdroj: | Applied Optics. 59:B35 |
| ISSN: | 2155-3165 1559-128X |
| Popis: | The phase information provided by the beat note between frequency combs and two continuous-wave lasers is used to extrapolate the phase evolution of comb modes found in a spectral region obtained via nonlinear broadening. This thereafter enables using interferogram self-correction to fully retrieve the coherence of a dual-comb beat note between two independent fiber lasers. This approach allows the f − 2 f self-referencing of both combs, which is a significant simplification. Broadband near-infrared methane spectroscopy has been conducted to demonstrate the simplified system’s preserved performance. |
| Databáze: | OpenAIRE |
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