Symmetry-broken cavity solitons and collective polarization conformity in Fabry–Pérot Kerr resonators

Yohann G. Sanvert; Abdullah Alabbadi; Lewis Hill; Yuandi Xu; Gang Xu; Gian-Luca Oppo; Stéphane Coen; Erwan Lucas; Pascal Del’Haye; Julien Fatome

doi:10.1364/ol.596517

Symmetry-broken cavity solitons and collective polarization conformity in Fabry–Pérot Kerr resonators

Yohann G. Sanvert
, Abdullah Alabbadi
, Lewis Hill
, Yuandi Xu
, Gang Xu
, Gian-Luca Oppo
, Stéphane Coen
, Erwan Lucas
, Pascal Del’Haye
, Julien Fatome^*

^*Corresponding author for this work

Research output: Contribution to journal › Letter › peer-review

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Abstract

We report on the experimental generation of polarization symmetry-broken cavity solitons (SB-CSs) in a passive, fiber-based, coherently driven, Fabry–Pérot (FP) Kerr resonator. Polarization-resolved measurements reveal the spontaneous transition of initially symmetric CSs into asymmetrical vectorial states, triggered by a cross-phase modulation-induced polarization bifurcation. Most notably, due to counter-propagation of light occurring in FP resonators, we unveil a collective polarization conformity effect, whereby multiple CSs circulating in the cavity converge to the same asymmetric polarization state once their number exceeds a certain threshold. These results demonstrate that Fabry–Pérot resonators support novel collective soliton dynamics that are absent in ring architectures.

Original language	English
Pages (from-to)	2952-2955
Number of pages	4
Journal	Optics Letters
Volume	51
Issue number	10
Early online date	13 May 2026
DOIs	https://doi.org/10.1364/ol.596517
Publication status	Published - 15 May 2026

Funding

National Natural Science Foundation of China (62275097); Royal Society Te Apārangi (18-UOA-310, 23-UOA-053); Deutsche Forschungsgemeinschaft (54126787); German Federal Ministry of Research (13N17314, 13N17342); Centre National de la Recherche Scientifique (IRP Wall-IN).

Keywords

symmetry-broken cavity solitons
Fabry–Pérot Kerr resonator
soliton dynamics
polarization

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10.1364/ol.596517

Sanvert-etal-OL-2026-Symmetry-broken-cavity-solitons-and-collective-polarization-conformityAccepted author manuscript, 1.52 MBLicence: CC BY 4.0

Cite this

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title = "Symmetry-broken cavity solitons and collective polarization conformity in Fabry–P{\'e}rot Kerr resonators",

abstract = "We report on the experimental generation of polarization symmetry-broken cavity solitons (SB-CSs) in a passive, fiber-based, coherently driven, Fabry–P{\'e}rot (FP) Kerr resonator. Polarization-resolved measurements reveal the spontaneous transition of initially symmetric CSs into asymmetrical vectorial states, triggered by a cross-phase modulation-induced polarization bifurcation. Most notably, due to counter-propagation of light occurring in FP resonators, we unveil a collective polarization conformity effect, whereby multiple CSs circulating in the cavity converge to the same asymmetric polarization state once their number exceeds a certain threshold. These results demonstrate that Fabry–P{\'e}rot resonators support novel collective soliton dynamics that are absent in ring architectures.",

keywords = "symmetry-broken cavity solitons, Fabry–P{\'e}rot Kerr resonator, soliton dynamics, polarization",

author = "Sanvert, \{Yohann G.\} and Abdullah Alabbadi and Lewis Hill and Yuandi Xu and Gang Xu and Gian-Luca Oppo and St{\'e}phane Coen and Erwan Lucas and Pascal Del{\textquoteright}Haye and Julien Fatome",

year = "2026",

month = may,

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doi = "10.1364/ol.596517",

language = "English",

volume = "51",

pages = "2952--2955",

journal = "Optics Letters",

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TY - JOUR

T1 - Symmetry-broken cavity solitons and collective polarization conformity in Fabry–Pérot Kerr resonators

AU - Sanvert, Yohann G.

AU - Alabbadi, Abdullah

AU - Hill, Lewis

AU - Xu, Yuandi

AU - Xu, Gang

AU - Oppo, Gian-Luca

AU - Coen, Stéphane

AU - Lucas, Erwan

AU - Del’Haye, Pascal

AU - Fatome, Julien

PY - 2026/5/15

Y1 - 2026/5/15

N2 - We report on the experimental generation of polarization symmetry-broken cavity solitons (SB-CSs) in a passive, fiber-based, coherently driven, Fabry–Pérot (FP) Kerr resonator. Polarization-resolved measurements reveal the spontaneous transition of initially symmetric CSs into asymmetrical vectorial states, triggered by a cross-phase modulation-induced polarization bifurcation. Most notably, due to counter-propagation of light occurring in FP resonators, we unveil a collective polarization conformity effect, whereby multiple CSs circulating in the cavity converge to the same asymmetric polarization state once their number exceeds a certain threshold. These results demonstrate that Fabry–Pérot resonators support novel collective soliton dynamics that are absent in ring architectures.

AB - We report on the experimental generation of polarization symmetry-broken cavity solitons (SB-CSs) in a passive, fiber-based, coherently driven, Fabry–Pérot (FP) Kerr resonator. Polarization-resolved measurements reveal the spontaneous transition of initially symmetric CSs into asymmetrical vectorial states, triggered by a cross-phase modulation-induced polarization bifurcation. Most notably, due to counter-propagation of light occurring in FP resonators, we unveil a collective polarization conformity effect, whereby multiple CSs circulating in the cavity converge to the same asymmetric polarization state once their number exceeds a certain threshold. These results demonstrate that Fabry–Pérot resonators support novel collective soliton dynamics that are absent in ring architectures.

KW - symmetry-broken cavity solitons

KW - Fabry–Pérot Kerr resonator

KW - soliton dynamics

KW - polarization

UR - https://doi.org/10.17868/strath.00096341

U2 - 10.1364/ol.596517

DO - 10.1364/ol.596517

M3 - Letter

SN - 0146-9592

VL - 51

SP - 2952

EP - 2955

JO - Optics Letters

JF - Optics Letters

IS - 10

ER -

Symmetry-broken cavity solitons and collective polarization conformity in Fabry–Pérot Kerr resonators

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