334 citations · 1k across the 12 of their papers we have counts for
7 papers · 1 filter
A nonreciprocal optical resonator with broken time-invariance for arbitrarily high time-bandwidth performance
Ivan Cardea, Davide Grassani, Simon J. Fabbri +6
Most present-day resonant systems, throughout physics and engineering, are characterized by a strict time-reversal symmetry between the rates of energy coupled in and out of the sy…
Highly efficient 4 micron light generation through fs-fiber laser driven supercontinuum in SiN waveguides
Davide Grassani, Eirini Tagkoudi, Hairun Guo +3
Directly accessing the middle infrared, the molecular functional group spectral region, via supercontinuum generation processes based on turn-key fiber lasers offers the undeniable…
Mid-infrared frequency comb generation with silicon nitride nano-photonic waveguides
Clemens Herkommer, Adrien Billat, Hairun Guo +5
Mid-infrared optical frequency combs are of significant interest for molecular spectroscopy due to the large absorption of molecular vibrational modes on one hand, and the ability…
Large second harmonic generation enhancement in SiN waveguides by all-optically induced quasi phase matching
Adrien Billat, Davide Grassani, Martin H. P. Pfeiffer +3
Integrated waveguides exhibiting efficient second-order nonlinearities are crucial to obtain compact and low power optical signal processing devices. Silicon nitride (SiN) has show…
Mid-infrared continuous wave parametric amplification in tapered chalcogenide microstructured fibers
Sida Xing, Davide Grassani, Svyatoslav Kharitonov +4
As photon mixing is not inherently limited to any specific spectral region, parametric processes represent a compelling solution for all-optical signal processing in spectral windo…
Active stabilization of a Michelson interferometer at an arbitrary phase with sub-nm resolution
Davide Grassani, Matteo Galli, Daniele Bajoni
We report on the active stabilization of a Michelson interferometer at an arbitrary phase angle with a precision better than one degree at nm, which corresponds to an op…
Ultra-low power generation of twin photons in a compact silicon ring resonator
Stefano Azzini, Davide Grassani, Michael J. Strain +6
We demonstrate efficient generation of correlated photon pairs by spontaneous four wave mixing in a 5 μm radius silicon ring resonator in the telecom band around 1550 nm. By optica…