Mid infrared gas spectroscopy using efficient fiber laser driven photonic chip-based supercontinuum
Davide Grassani (),
Eirini Tagkoudi,
Hairun Guo,
Clemens Herkommer,
Fan Yang,
Tobias J. Kippenberg and
Camille-Sophie Brès ()
Additional contact information
Davide Grassani: STI-IEL
Eirini Tagkoudi: STI-IEL
Hairun Guo: SB-IPHYS
Clemens Herkommer: SB-IPHYS
Fan Yang: STI-IEL
Tobias J. Kippenberg: SB-IPHYS
Camille-Sophie Brès: STI-IEL
Nature Communications, 2019, vol. 10, issue 1, 1-8
Abstract:
Abstract Directly accessing the middle infrared, the molecular functional group spectral region, via supercontinuum generation processes based on turn-key fiber lasers offers the undeniable advantage of simplicity and robustness. Recently, the assessment of the coherence of the mid-IR dispersive wave in silicon nitride (Si3N4) waveguides, pumped at telecom wavelength, established an important first step towards mid-IR frequency comb generation based on such compact systems. Yet, the spectral reach and efficiency still fall short for practical implementation. Here, we experimentally demonstrate that large cross-section Si3N4 waveguides pumped with 2 μm fs-fiber laser can reach the important spectroscopic spectral region in the 3–4 μm range, with up to 35% power conversion and milliwatt-level output powers. As a proof of principle, we use this source for detection of C2H2 by absorption spectroscopy. Such result makes these sources suitable candidate for compact, chip-integrated spectroscopic and sensing applications.
Date: 2019
References: Add references at CitEc
Citations:
Downloads: (external link)
https://www.nature.com/articles/s41467-019-09590-3 Abstract (text/html)
Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.
Export reference: BibTeX
RIS (EndNote, ProCite, RefMan)
HTML/Text
Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:10:y:2019:i:1:d:10.1038_s41467-019-09590-3
Ordering information: This journal article can be ordered from
https://www.nature.com/ncomms/
DOI: 10.1038/s41467-019-09590-3
Access Statistics for this article
Nature Communications is currently edited by Nathalie Le Bot, Enda Bergin and Fiona Gillespie
More articles in Nature Communications from Nature
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().