Paper 14092-29
Paper 14092-29
Phase noise properties of super-continuum generation in all-normal dispersion fibers
14 April 2026 • 15:40 - 16:00 CEST | Churchill (Niveau/Level 1)
Abstract
The spectral coherence of supercontinuum generation in polarization-maintaining all-normal-dispersion photonic crystal fibers (PM-ANDi PCF) is investigated using a combined experimental and numerical approach. We quantify stochastic phase noise driven by pulse-energy fluctuations and evaluate spectrally resolved intensity-to-phase transfer coefficients across the generated bandwidth. The measured stochastic phase noise approaches the theoretical interferometric limit imposed by shot noise, and the intensity-to-phase transfer coefficients show excellent agreement with predictions from nonlinear propagation theory. These analyses reveal the underlying noise mechanisms and confirm the excellent coherence properties of the resulting supercontinuum, highlighting its suitability for applications requiring low-energy and high repetition rate supercontinuums.
Presenter
Matis Marcadier
Fastlite (France), Institut de Physique de Nice (France)
Matis Marcadier began his CIFRE PhD in January 2024 at Fastlite by Amplitude in collaboration with Institut de Physique de Nice (INPHYNI). His research focuses on the study and improvement of spectral coherence in broadband light sources, with a particular interest in supercontinuum generation in photonic crystal fibers. By combining experimental and theoretical approaches, his work aims to better understand phase noise mechanisms and support the development of advanced Carrier Envelope Phase stabilized ultrafast laser sources. He earned a dual engineering and master’s degree in 2023 from Telecom Physique Strasbourg and the University of Strasbourg. During his studies, he completed an internship at the Institute of Photonic Sciences in Barcelona, developing numerical methods to retrieve solid-state band structures from high-harmonic spectra. He also worked at Fastlite on developing a Frequency-Resolved Optical Gating device for ultrafast pulses in the short- and near-infrared range.