Davide Grassani

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Related publications (32)

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On-Chip Heralded Single Photon Source with Demultiplexing and Pump Filtering

Christophe Marcel Georges Galland, Davide Grassani

We demonstrate an on-chip source of correlated photons with spatial demultiplex-ing of signal and idler photons via ring resonators and with pump suppression greater than 60 decibels. ...

OSA2014

Narrow linewidth polarizer-free 2.1μm Ho-doped fiber laser with 45dB polarization extinction ratio

Camille Sophie Brès, Davide Grassani, Sida Xing

2017

Tailored on-chip mid-IR light generation and application for gas spectroscopy

Camille Sophie Brès, Davide Grassani, Eirini Tagkoudi

In this contribution, we present how coherent supercontinuum generation in Si3N4 waveguides enabled by fiber laser pumping can be tailored to cover part of the mid-IR spectrum and the use of such sources in spectroscopy. ...

2021

Stable 2.1 μm near 100% polarized Ho-doped all-fiber laser based on a polarizer-free cavity scheme

Camille Sophie Brès, Jianqi Hu, Davide Grassani, Svyatoslav Kharitonov, Sida Xing

A highly polarized Ho-doped truly all-fibre laser was demonstrated without in-cavity polarizer. Utilizing PM-FBG and loop mirror, maximum 0.5W output power with 30% slope efficiency, 70dB ASE suppression and 99.997% degree of polarization was recorded at 2 ...

2017

A chip-based silicon nitride platform for mid-infrared nonlinear photonics

Tobias Kippenberg, Camille Sophie Brès, Martin Hubert Peter Pfeiffer, Hairun Guo, Davide Grassani, Michail Zervas, Adrien Billat

We developed a chip-based silicon nitride platform with thick waveguides (> 2 mm) that overcomes the usual fabrication limitation. We demonstrate both microresonator frequency comb generation at 2:5 mm and supercontinuum generation extending beyond 4:0 mm ...

2017

Design rules for frequency conversion in periodically poled thin film lithium niobate waveguides

Camille Sophie Brès, Davide Grassani, Hamed Sattari, Christian André Clément Lafforgue, Yesim Koyaz, Nikolay Balakleyskiy

SPIE Society of Photo-Optical Instrumentation Engineers2024

Supercontinuum in integrated photonics: generation, applications, challenges and perspectives (vol 12, pg 1199, 2023) [Erratum]

Camille Sophie Brès, Davide Grassani, Victor Brasch

2023

Continuous wave four-wave mixing at 2 micron in Chalcogenide microstructured fiber

Camille Sophie Brès, Davide Grassani, Svyatoslav Kharitonov, Adrien Billat, Armand Vedadi-Comte, Steevy Joyce Cordette, Sida Xing

We present the first demonstration of continuous-wave four-wave mixing at 2μm in short chalcogenide microstructured fiber. Idlers over approximately 15nm on anti-Stokes side of the pump were measured for a coupled pump power of 94mW. ...

2015

Overcoming the time-bandwidth limit

Camille Sophie Brès, Davide Grassani, Simon Julien Fabbri, Kosmas Tsakmakidis, Ivan Cardea

We are so accustomed to the time-bandwidth limit that we often take it to be a fundamental relation that cannot be overcome. Contrary to this belief we here propose that the storage/delay time of a system can in fact be decoupled from the operating bandwid ...

IEEE2018

Generation of high-brightness spectrally flat supercontinuum in 1900-2450 nm range inside a small core thulium-doped fiber amplifier

Camille Sophie Brès, Davide Grassani, Svyatoslav Kharitonov, Sida Xing, Thibault Emmanuel North

We demonstrate the generation of high-brightness supercontinuum inside thuliumdoped fiber amplifier in 1950-2450nm spectral range with 1.7W output power and 32% slope efficiency, seeded by tunable 2000nm mode-locked laser and assisted by 3H4-3H5/3F4-3H6 th ...

OSA Publishing2016

Efficient mid-infrared dispersive wave generation in dispersion-engineered Si3N4 waveguides pumped at 2 μm

Tobias Kippenberg, Camille Sophie Brès, Hairun Guo, Davide Grassani, Eirini Tagkoudi

We demonstrate efficient generation of mid-infrared dispersive wave at 3.5 m in a Si3N4 waveguide pumped by a 2090nm femtosecond mode-locked fiber laser. The 8% maximum efficiency allows for a milliwatt-level average power mid-infrared pulse. ...

2018

Mid-infrared continuous-wave parametric amplification in chalcogenide microstructured fibers

Camille Sophie Brès, Davide Grassani, Svyatoslav Kharitonov, Sida Xing

The persistent growth of interest in the middle infrared (MIR) is stimulating the development of sources and components. Novel waveguides and fibers for the efficient use of nonlinear effects in the MIR are being intensively studied. Highly nonlinear silic ...

2017