Stimulated Raman Scattering Imposes Fundamental Limits to the Duration and Bandwidth of Temporal Cavity Solitons

Physical Review Letters
Yadong WangMiro Erkintalo

Abstract

Temporal cavity solitons (CS) are optical pulses that can persist in passive resonators, and they play a key role in the generation of coherent microresonator frequency combs. In resonators made of amorphous materials, such as fused silica, they can exhibit a spectral redshift due to stimulated Raman scattering. Here we show that this Raman-induced self-frequency-shift imposes a fundamental limit on the duration and bandwidth of temporal CSs. Specifically, we theoretically predict that stimulated Raman scattering introduces a previously unidentified Hopf bifurcation that leads to destabilization of CSs at large pump-cavity detunings, limiting the range of detunings over which they can exist. We have confirmed our theoretical predictions by performing extensive experiments in synchronously driven fiber ring resonators, obtaining results in excellent agreement with numerical simulations. Our results could have significant implications for the future design of Kerr frequency comb systems based on amorphous microresonators.

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Citations

Aug 11, 2018·Science·Tobias J KippenbergMichael L Gorodetsky
May 15, 2020·Nature·Johann RiemensbergerTobias J Kippenberg
Apr 24, 2019·Physical Review Letters·François CopiePascal Del'Haye
Jun 2, 2018·Optics Letters·Xinbai LiKerry Vahala
Nov 9, 2019·Physical Review Letters·Daniel C Cole, Scott B Papp
Sep 5, 2018·Nature Communications·Xu YiKerry Vahala
Aug 4, 2020·Physical Review Letters·Xue DongWilliam H Renninger
Nov 17, 2020·Physical Review Letters·Zheng GongHong X Tang
Mar 3, 2021·Optics Letters·Kewei LiuChangxi Yang
Mar 18, 2021·Optics Express·Alexey V Andrianov, Elena A Anashkina
Jul 31, 2021·Optics Letters·Jae K JangAlexander L Gaeta

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