Adaptive real-time dual-comb spectroscopy
Open accessAbstract
The spectrum of a laser frequency comb consists of several hundred thousand equally spaced lines over a broad spectral bandwidth. Such frequency combs have revolutionized optical frequency metrology and they now hold much promise for significant advances in a growing number of applications including molecular spectroscopy. Despite an intriguing potential for the measurement of molecular spectra spanning tens of nanometres within tens of microseconds at Doppler-limited resolution, the development of dual-comb spectroscopy is hindered by the demanding stability requirements of the laser combs. Here we overcome this difficulty and experimentally demonstrate a concept of real-time dual-comb spectroscopy, which compensates for laser instabilities by electronic signal processing. It only uses free-running mode-locked lasers without any phase-lock electronics. We record spectra spanning the full bandwidth of near-infrared fibre lasers with Doppler-limited line profiles highly suitable for measurements of concentrations or line intensities. Our new technique of adaptive dual-comb spectroscopy offers a powerful transdisciplinary instrument for analytical sciences. The precision of frequency combs makes them the ideal tool for applications in areas such as optical metrology. Here, Ideguchi et al. demonstrate real-time spectroscopy with frequency combs where laser instabilities are electronically compensated, and which is based on commercially available components.
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In IFG-based jitter correction methods, the tracking speed of the jitter is limited to the repetition frequency of IFG ∆f_r.
“However, in these methods, the tracking speed of the jitter is limited to the repetition frequency of IFG ∆𝑓 r [37].”
From Jitter correction for asynchronous optical sampling terahertz spectroscopy using free-running pulsed lasers (2023) · cites this paper as [37]
The Results (Experimental set-up; page unavailable) state that interferogram bursts recur every 1/Δf, establishing Δf as their repetition frequency. The Results (Stability requirements in dual-comb spectroscopy; page unavailable) say some pulse-to-pulse jitter errors cannot be corrected afterward, but do not state that IFG-based jitter correction tracks jitter only up to Δf. (LLM, conf=0.72)
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- Authors
- Ideguchi, T., Poisson, A., Guelachvili, G., Picqué, N., & Hänsch, T. W.
- Affiliations
- Max Planck Institute of Quantum Optics (DE)
- Université Paris-Sud (FR)
- Corresponding author
- Picqué, Nathalie
- Venue
- Nature Communications
- Published
- 2014-02-27
- Volume
- 5
- Issue
- 1
- Pages
- 3375-3375
- ISSN
- 2041-1723 (ISSN-L)
- PMC
- PMC3948060
- OpenAlex
- W2019454510
- Cited by
- 434
- References
- 50
- Citations by year
- 2026: 15 · 2025: 34 · 2024: 28 · 2023: 32 · 2022: 33 · 2021: 43 · 2020: 41 · 2019: 39 · 2018: 42 · 2017: 26 · 2016: 50 · 2015: 27 · 2014: 16 · 2013: 3 · 2012: 4
- FWCI
- 19.74
- Type
- journal article
- Language
- en
- Open access
- hybrid
- doi.org
- Licence
- Locations
- Nature Communications (publishedVersion, cc-by-nc-nd)
- Europe PMC (PubMed Central) (publishedVersion, cc-by-nc-nd)
- PubMed Central (publishedVersion, cc-by-nc-nd)
- PubMed (publishedVersion)
- arXiv (Cornell University) (submittedVersion)
- MPG.PuRe (Max Planck Society) (submittedVersion, other-oa)
- RePEc: Research Papers in Economics (submittedVersion)
- Open access LMU (Ludwid Maxmilian's Universitat Munchen) (submittedVersion)
- Max Planck Digital Library (submittedVersion, other-oa)
- arXiv (Cornell University)
- Funders
- Max-Planck-Förderstiftung
- Agence Nationale de la Recherche
- FP7 Ideas: European Research Council (267854)
- Topics
- Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Advanced Fiber Laser Technologies
- Physical Sciences › Chemistry › Spectroscopy › Spectroscopy and Laser Applications
- Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Laser-Matter Interactions and Applications
- Keywords
- dual-comb spectroscopy, real-time spectroscopy, laser frequency combs, mode-locked lasers, free-running lasers, electronic signal processing, molecular spectroscopy, optical frequency metrology
- MeSH terms
- Acetylene, Chemistry Techniques, Analytical, Equipment Design, Lasers, Spectrum Analysis, Time Factors, Reproducibility of Results
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