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Mikhail Churaev

Cette personne a quitté l’EPFL

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Publications associées (35)

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Nonlinear Frequency Conversion in the Hybrid Si3N4 - LiNbO3 Integrated Platform

Tobias Kippenberg, Junqiu Liu, Rui Ning Wang, Mikhail Churaev, Viacheslav Snigirev, Terence Albert Emile Blésin

We demonstrate optical frequency comb generation in hybrid high-Q optical microresonators fabricated using direct wafer bonding of photonic Damascene silicon nitride wafer with thin-film lithium niobate-on-insulator (LNOI). The devices enable direct phase ...

IEEE2021

Reduced material loss in thin-film lithium niobate waveguides

Tobias Kippenberg, Guanhao Huang, Mikhail Churaev, Zihan Li

Thin-film lithium niobate has shown promise for scalable applications ranging from single-photon sources to high-bandwidth data communication systems. Realization of the next generation high-performance classical and quantum devices, however, requires much ...

AIP Publishing2022

Lithium-niobate-based narrow-linewidth frequency agile integrated lasers with petahertz frequency tuning rate

Tobias Kippenberg, Junqiu Liu, Rui Ning Wang, Johann Emmeram Riemensberger, Anat Siddharth, Guanhao Huang, Mikhail Churaev, Viacheslav Snigirev

We demonstrate an electro-optically tunable hybrid integrated laser self-injection locked to a mode of a heterogeneously integrated lithium-niobate-on-Damascene-silicon-nitride microresonator. An intrinsic linewidth of 3 kHz and a frequency tuning rate of ...

IEEE2023

High-density lithium niobate integrated photonics

Tobias Kippenberg, Johann Emmeram Riemensberger, Anat Siddharth, Mikhail Churaev, Zihan Li

We demonstrate a strip waveguide-based LiNbO3 photonic integrated circuit fabricated with a novel hard mask, diamond-like-carbon (DLC). The steep sidewall configuration exhibits tight optical confinement and dispersion control while preserving ultra-low lo ...

Optical Society of America2023

Probing the Limits of Optical Loss in Ion-Sliced Thin-film Lithium Niobate

Tobias Kippenberg, Junqiu Liu, Guanhao Huang, Mikhail Churaev, Zelin Tan

We measured the absorption-limited loss at telecommunication wavelengths for thin-film lithium niobate micro-ring resonators using Kerr-calibrated linear response technique. We find the average absorption loss-rate kappa(abs)/2 pi to be 3.65 +/- 0.70 MHz, ...

IEEE2021

Hybrid Si3N4-LiNbO3 integrated platform for electro-optic conversion

Tobias Kippenberg, Junqiu Liu, Rui Ning Wang, Johann Emmeram Riemensberger, Mikhail Churaev, Tianyi Liu

We demonstrate the integration of a Si3N4 Damascene photonic platform with thin-film lithium niobate on insulator (LNOI) via direct wafer bonding. This process enables fabrication of hybrid chi((2))-chi((3)) microresonators with Q similar to 10(6), as well ...

IEEE2020

Lithium tantalate photonic integrated circuits for high volume manufacturing

Tobias Kippenberg, Johann Emmeram Riemensberger, Mikhail Churaev, Xinru Ji, Zihan Li, Chengli Wang

We demonstrate the first photonic integrated circuit platform using Lithium Tantalate (LiTaO3), achieving waveguides with low losses (5.6 dB m−1), Mach-Zehnder modulators with a 40 GHz electro-optical bandwidth and a 1.96 V · cm voltage-length product, alo ...

Institute of Electrical and Electronics Engineers Inc.2024

Broadband and high-gain continuous-wave parametric amplification in a Gallium Phosphide waveguide

Tobias Kippenberg, Johann Emmeram Riemensberger, Mikhail Churaev, Nikolai Kuznetsov, Alisa Davydova, Alberto Nardi

We demonstrate the first broadband and high gain third-order parametric optical amplifier in a 5.5 cm long GaP waveguide spiral with up to 25 dB net gain off-chip and more than 10 dB amplification over a bandwidth of 140 nm. ...

Institute of Electrical and Electronics Engineers Inc.2024

An Ultra-Broadband Gallium Phosphide Optical Parametric Amplifier

Tobias Kippenberg, Johann Emmeram Riemensberger, Mikhail Churaev, Nikolai Kuznetsov, Alisa Davydova, Alberto Nardi

Optical parametric amplification [1], which utilizes material nonlinearities, has long been considered one approach to increase channel capacity, but the technical complexity of systems using highly nonlinear fibers or bulk waveguides restricts their pract ...

IEEE2025

Dissipative Kerr solitons in a photonic dimer

Tobias Kippenberg, Junqiu Liu, Hairun Guo, Rui Ning Wang, Mikhail Churaev, Alexey Tikan

We study nonlinear dynamics emerging in a photonic microring dimer. It is shown that four wave mixing pathways between the dimer supermodes lead to novel nonlinear phenomena going beyond the single resonator physics. (C) 2020 The Author(s) ...

IEEE2020

An Integrated Gallium Phosphide Travelling-Wave Optical Parametric Amplifier

Tobias Kippenberg, Johann Emmeram Riemensberger, Mikhail Churaev, Nikolai Kuznetsov, Alisa Davydova, Alberto Nardi

We demonstrate optical continuous-travelling-wave parametric amplification in a 5.55-cm-long integrated gallium phosphide waveguide, achieving up to 35 dB of gain and significantly surpassing the bandwidth of erbium-doped fiber amplifiers. ...

Optical Society of America2024

Lithium-Niobate-Based Frequency-Agile Integrated Lasers

Tobias Kippenberg, Junqiu Liu, Rui Ning Wang, Guanhao Huang, Anat Siddharth, Mikhail Churaev, Viacheslav Snigirev, Grigorii Likhachev

We demonstrate narrow- linewidth ultrafast tunable integrated lasers based on heterogeneously integrated thin-film lithium niobate on ultra-low loss silicon nitride integrated photonic circuits. Using self-injection locking of a hybrid microresonator, we a ...

IEEE2022

Symmetry protection against mode crossings in multimode photonic resonator chains

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

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

Low-loss heterogeneously integrated barium-titanate-on-silicon-nitride photonics

Tobias Kippenberg, Rui Ning Wang, Mikhail Churaev, Viacheslav Snigirev

We present a hybrid barium titanate photonics platform exhibiting exceptionally low losses of 0.7 dB/cm and realize ring resonators with intrinsic quality factors exceeding 6×105. Measurement of Vπ L = 0.56 V·cm in electro-optic modulation experiments demo ...

Optical Society of America2023

Integrated lithium tantalate electro-optic modulator

Tobias Kippenberg, Mikhail Churaev, Chengli Wang, Junyin Zhang

We demonstrate an integrated lithium tantalate electro-optic Mach-Zehnder modulator exhibiting the voltage-length product of 3.7 V·cm and bandwidth of at least 67 GHz. ...

Institute of Electrical and Electronics Engineers Inc.2024