Publication
Efficient broadband parametric conversion: reaching for the Mid IR
Related publications (39)
Photothermal spectroscopy on-chip sensor for the measurement of a PMMA film using a silicon nitride micro-ring resonator and an external cavity quantum cascade laser
Laser-based mid-infrared (mid-IR) photothermal spectroscopy (PTS) represents a selective, fast, and sensitive analytical technique. Recent developments in laser design permits the coverage of wider spectral regions in combination with higher power, enablin ...
Berlin2024Dissipative Kerr soliton generation at 2μm in a silicon nitride microresonator
Camille Sophie Brès, Anton Stroganov, Ozan Yakar, Marco Clementi, Christian André Clément Lafforgue, Anamika Nair Karunakaran
Chip -scale optical frequency combs enable the generation of highly -coherent pulsed light at gigahertz-level repetition rates, with potential technological impact ranging from telecommunications to sensing and spectroscopy. In combination with techniques ...
Optica Publishing Group2024Hybrid lithium niobate-on-silicon nitride platform for mid-IR supercontinuum generation
Tobias Kippenberg, Mikhail Churaev
Integrated optics has shown itself very convenient for exploiting nonlinear processes as it results in high confinement factor, freedom of dispersion engineering and compactness. However, the choice of materials is crucial for the development of nonlinear ...
SPIE-INT SOC OPTICAL ENGINEERING2023Sub-kHz-Linewidth External-Cavity Laser (ECL) With Si3N4 Resonator Used as a Tunable Pump for a Kerr Frequency Comb
Combining optical gain in direct-bandgap III-V materials with tunable optical feedback offered by advanced photonic integrated circuits is key to chip-scale external-cavity lasers (ECL), offering wideband tunability along with low optical linewidths. Exter ...
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC2023Tailored 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. ...
2021Metasurfaces for label-free biosensing mid-infrared optics and active photonic devices
Novel two-dimensional metamaterials, known as metasurfaces, have emerged as a breakthrough platform for controlling electromagnetic wave properties at the nanoscale. These metasurfaces consist of subwavelength nanoantennas or so-called meta-atoms, which ca ...
EPFL2021Nanophotonic supercontinuum-based mid-infrared dual-comb spectroscopy
Luc Thévenaz, Tobias Kippenberg, Camille Sophie Brès, Junqiu Liu, Hairun Guo, Wenle Weng, Wolfgang Hänsel
High resolution and fast detection of molecular vibrational absorption is important for organic synthesis, pharmaceutical processes, and environmental monitoring, and is enabled by mid-infrared (mid-IR) laser frequency combs via dual-comb spectroscopy. Her ...
2020Low-loss SiN waveguides for efficient and broadly tunable nonlinear frequency conversion
Tobias Kippenberg, Camille Sophie Brès, Junqiu Liu, Florent Gilles Mazeas
We report on the use of low-loss Si3N4 waveguides for efficient frequency conversion tunable from the near infrared to the short-wave infrared. We achieve -15 dB conversion efficiency for 200 mW coupled pump power. ...
2020Development of coherent mid-infrared source using chalcogenide photonic crystal fibers
Many molecule bonds have vibration frequencies in the mid-infrared band. Thus, this band is of great interest to molecular spectroscopy, material processing and medical applications. However, many optical materials typically used for laser sources experien ...
EPFL2019Enhancing Optical Nonlinear Processes Performance of Silicon Nitride Waveguides
Camille Sophie Brès, Davide Grassani, Eirini Tagkoudi
Silicon nitride has recently attracted significant interest for nonlinear integrated optics. In addition to its excellent linear properties, silicon nitride offers a bandgap larger than silicon, and a wide transparency window spanning from the visible all ...
IEEE2018