Moille, G.
, Sridhar, S.
, Shandilya, P.
, Dutt, A.
, Menyuk, C.
and Srinivasan, K.
(2025),
Toward Chaotic Group Velocity Hopping of an On-Chip Dissipative Kerr Soliton, Physical Review Letters, [online], https://doi.org/10.1103/2k7d-p7rm, https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=959955
(Accessed December 16, 2025)
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Toward Chaotic Group Velocity Hopping of an On-Chip Dissipative Kerr Soliton
Published
Author(s)
, Sashank Kaushik Sridhar, Pradyoth Shandilya, Avik Dutt, Curtis Menyuk,
Abstract
Chaos enables randomness-based applications, particularly in photonic systems. Integrated optical frequency combs (microcombs) have previously been observed in either chaotic modulation instability or stable, low-noise dissipative Kerr soliton (DKS) regimes. In this Letter, we demonstrate a new microcomb state where a single DKS exhibits chaotic behavior. By phase modulating the Kerr-induced synchronization (KIS) between a DKS and an externally injected reference laser, we observe chaotic group velocity hopping of the soliton, causing random transitions of the repetition rate. Using a chip-integrated octave-spanning microcomb, we experimentally validate the second-order Adler equation describing KIS, allowing us to predict and demonstrate this chaotic DKS hopping. This Letter connects nonlinear dynamics with optical soliton physics, providing a deterministic framework for triggering microcomb chaos in the solitonic state.Citation
Physical Review Letters
Volume
135
Pub Type
Journals
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Created September 23, 2025, Updated December 15, 2025