Nature Search

Mid infrared gas spectroscopy using efficient fiber laser driven photonic chip-based supercontinuum

The mid-infrared spectral region is important for gas sensing applications. Here, Grassani et al. demonstrate efficient supercontinuum generation from fibre-lasers injected into silicon nitride waveguides to provide a turn-key mid-IR source with milliwatt-level output.

Davide Grassani
Eirini Tagkoudi
Camille-Sophie Brès
ResearchOpen Access04 Apr 2019
Nature Communications

Volume: 10, P: 1-8
Energy correlations of photon pairs generated by a silicon microring resonator probed by Stimulated Four Wave Mixing

Davide Grassani
Angelica Simbula
Daniele Bajoni
ResearchOpen Access01 Apr 2016
Scientific Reports

Volume: 6, P: 1-6
Large second harmonic generation enhancement in Si₃N₄ waveguides by all-optically induced quasi-phase-matching

Phase-matching and quasi-phase-matching in periodically poled ferroelectrics ensure efficient harmonic generation, but only statically. Here, Billat et al. demonstrate all-optically reconfigurable second harmonic generation by inscribing a stable grating in CMOS-compatible nonlinear waveguides.

Adrien Billat
Davide Grassani
Camille-Sophie Brès
ResearchOpen Access18 Oct 2017
Nature Communications

Volume: 8, P: 1-7
Publisher Correction: Mid-infrared frequency comb via coherent dispersive wave generation in silicon nitride nanophotonic waveguides

Hairun Guo
Clemens Herkommer
Tobias J. Kippenberg
Amendments and Corrections04 Jul 2018
Nature Photonics

Volume: 12, P: 496
Ultraviolet astronomical spectrograph calibration with laser frequency combs from nanophotonic lithium niobate waveguides

Here the authors demonstrate ultraviolet astronomical frequency combs, derived from the near-infrared domain via efficient harmonic generation in nanophotonic waveguides, to provide precision calibration to astronomical spectrographs for exoplanet science and precision cosmology.

Markus Ludwig
Furkan Ayhan
Tobias Herr
ResearchOpen Access02 Sept 2024
Nature Communications

Volume: 15, P: 1-11
Mid-infrared frequency comb via coherent dispersive wave generation in silicon nitride nanophotonic waveguides

The direct generation of mid-infrared optical frequency combs in the region 2.5–4.0 μm from a 1.55-μm conventional and compact erbium-fibre-based femtosecond laser is demonstrated via coherent dispersive wave generation in silicon nitride nanophotonic waveguides.

Hairun Guo
Clemens Herkommer
Tobias J. Kippenberg
Research16 Apr 2018
Nature Photonics

Volume: 12, P: 330-335
Arbitrarily high time bandwidth performance in a nonreciprocal optical resonator with broken time invariance

Ivan Cardea
Davide Grassani
Camille-Sophie Brès
ResearchOpen Access25 Sept 2020
Scientific Reports

Volume: 10, P: 1-8

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Mid infrared gas spectroscopy using efficient fiber laser driven photonic chip-based supercontinuum

Energy correlations of photon pairs generated by a silicon microring resonator probed by Stimulated Four Wave Mixing

Large second harmonic generation enhancement in Si3N4 waveguides by all-optically induced quasi-phase-matching

Publisher Correction: Mid-infrared frequency comb via coherent dispersive wave generation in silicon nitride nanophotonic waveguides

Ultraviolet astronomical spectrograph calibration with laser frequency combs from nanophotonic lithium niobate waveguides

Mid-infrared frequency comb via coherent dispersive wave generation in silicon nitride nanophotonic waveguides

Arbitrarily high time bandwidth performance in a nonreciprocal optical resonator with broken time invariance

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Large second harmonic generation enhancement in Si₃N₄ waveguides by all-optically induced quasi-phase-matching