Aleksandr Tusnin

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Publications associées (18)

Free Electron Interaction with Nonlinear Optical States

Tobias Kippenberg, Rui Ning Wang, Aleksandr Tusnin, Zheru Qiu, Yujia Yang, Arslan Sajid Raja, Guanhao Huang, Alexey Tikan

We couple free electrons with nonlinear optical states and frequency combs in photonic chip-based microresonators. Intracavity nonlinear dissipative structures including optical solitons imprint unique fingerprints in electron spectra and their Ramsey inte ...

Optical Society of America2023

Protected generation of dissipative Kerr solitons in supermodes of coupled optical microresonators

Tobias Kippenberg, Rui Ning Wang, Mikhail Churaev, Xinru Ji, Aleksandr Tusnin, Junqiu Liu, Alexey Tikan, Kenichi Komagata

A photonic dimer composed of two evanescently coupled high-Q microresonators is a fundamental element of multimode soliton lattices. It has demonstrated a variety of emergent nonlinear phenomena, including supermode soliton generation and soliton hopping. ...

AMER ASSOC ADVANCEMENT SCIENCE2022

Dissipative Kerr solitons in a photonic dimer on both sides of exceptional point

Tobias Kippenberg, Hairun Guo, Mikhail Churaev, Aleksandr Tusnin, Alexey Tikan, Kenichi Komagata

Exceptional points are a ubiquitous concept widely present in driven-dissipative coupled systems described by a non-Hermitian Hamiltonian. To date, exceptional points have been extensively examined in the systems supporting only a few optical modes, thereb ...

NATURE RESEARCH2021

Symmetry protection against mode crossings in multimode photonic resonator chains

Tobias Kippenberg, Rui Ning Wang, Mikhail Churaev, Xinru Ji, Aleksandr Tusnin, Junqiu Liu, Alexey Tikan, Kenichi Komagata

The accessibility of solitons in driven-dissipative photonic dimers drastically varies for different supermode families. We explain the origin of this phenomenon and show its crucial influence on any soliton lattice configuration including topological arra ...

IEEE2021

Symmetry protection against mode crossings for dissipative Kerr soliton generation in microresonator chains

Tobias Kippenberg, Rui Ning Wang, Mikhail Churaev, Xinru Ji, Aleksandr Tusnin, Junqiu Liu, Alexey Tikan, Kenichi Komagata

IEEE2021

Collective dynamics in nonlinear resonators coupled in spatial and synthetic dimensions

Tobias Kippenberg, Aleksandr Tusnin, Alexey Tikan

We theoretically investigate chaotic and stable structures in coupled-resonator chains and synthetic frequency dimension influenced by Kerr nonlinearity, thereby bringing insights in the emerging field of soliton generation in chains and lattices of high-Q ...

IEEE2021

Nonlinear states and dynamics in a synthetic frequency dimension

Tobias Kippenberg, Aleksandr Tusnin, Alexey Tikan

Recent advances in the study of synthetic dimensions revealed a possibility to employ the frequency space as an additional degree of freedom which allows for investigating and exploiting higher-dimensional phenomena in a priori low-dimensional systems. How ...

AMER PHYSICAL SOC2020

Nonlinear effects in synthetic frequency dimension created by electro-optical modulation of a ring resonator

Tobias Kippenberg, Aleksandr Tusnin, Alexey Tikan

We numerically investigate the nonlinear dynamics of an optical resonator with electro-optical modulation. In this system we discover chimera states and their transition into new stable states with increasing modulation amplitude. Bifurcation analysis reve ...

IEEE2020

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