Dr. Andrey S. Voloshin Profile

Dr. Andrey S. Voloshin

at Deeplight SA

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Author

Publications (7)

Proceedings Article | 15 March 2023 Presentation + Paper

Low-noise hybrid integrated frequency-agile laser and soliton microcomb for FMCW LiDAR

Andrey Voloshin, Grigory Lihachev, Andrea Bancora, Johann Riemensberger, Vladimir Shadymov, Hao Tian, Rui Ning Wang, Sunil Bhave, Tobias Kippenberg

Proceedings Volume 12407, 1240706 (2023) https://doi.org/10.1117/12.2651550

KEYWORDS: Laser frequency, Solitons, Microresonators, LIDAR, Semiconductor lasers, Integrated optics, Laser optics, Fiber lasers

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Proceedings Article | 1 April 2020 Presentation + Paper

Numerical modelling of WGM microresonator Kerr frequency combs in self-injection locking regime

Nikita Kondratiev, Andrey Voloshin, Valery Lobanov, Igor Bilenko

Proceedings Volume 11358, 113580O (2020) https://doi.org/10.1117/12.2555863

KEYWORDS: Solitons, Microresonators, Frequency combs, Numerical modeling, Process modeling, Backscatter, Resonators

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Proceedings Article | 1 April 2020 Presentation

Self-injection locking of semiconductor laser diodes to integrated high-Q microresonators (Conference Presentation)

Andrey Voloshin, Sofya Agafonova, Nikita Kondratiev, Sergey Koptyaev, Maxim Ryabko, Stas Polonsky, Igor Bilenko

Proceedings Volume 11356, 113560D (2020) https://doi.org/10.1117/12.2555974

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The ultra-narrow linewidth diode lasers self-injection locked to high-Q crystalline microresonators are available commercially, providing the linewidth below 1 kHz for various wavelengths and enabling microcomb generation. Here we demonstrate a technique that allows applying this approach for photonic integrated chips containing microresonators and significantly narrow the laser diode (Fabry-Perot or DFB) linewidth due to self-injection locking to the silicon nitride (SiN) microresonator with high Q-factor. Considered laser diodes are CMOS-compatible, as well as integrated microresonators made of silicon nitride. This makes it possible to realize in the future large-scale production of laser devices based on microresonators. We stabilized the InGaAsP/InP Fabry-Perot (FP) laser diode (Seminex, 100 mW, 1535 nm, 20 nm spectral width) and the DFB laser (Nolatech Company, 1550 nm, output power up to 20 mW) by different silicon nitride microresonators with Q-factor higher than one million (LIGENTECH Company). Microresonators with different free spectral ranges (1 THz, 150 GHz, 35 GHz) allowed observing the different regime of operation, single frequency, and multi-frequency, when different laser diode lines are suppressed. The spectral linewidth of each locked line was better than 20 kHz (limited by Ref. laser). The developed technique allowed us to integrate different types of laser diodes with high-Q SiN microresonators and developed a fully integrated optical frequency comb source. We measured spectral characteristics (spectral linewidth, phase noises) of free running and locked states, the stabilization coefficient, and the locking range and compare these values to the theoretical estimations. We discuss requirements for the optical frequency comb generation in such systems and demonstrate measured spectra of optical combs. Also, we discuss possible applications of such system, operating in multi-frequency locking or comb regimes, and demonstrate the application for spectroscopy measurements.

Proceedings Article | 1 April 2020 Presentation + Paper

Optical frequency combs generation with collinear acousto-optic interaction

Sergey Mantsevich, Konstantin Yushkov, Andrey Voloshin

Proceedings Volume 11357, 113570S (2020) https://doi.org/10.1117/12.2555723

KEYWORDS: Adaptive optics, Polarizers, Geometrical optics, Acoustics, Ultrasonography, Polarization

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Proceedings Article | 11 November 2019 Paper

Applications of collinear acousto-optic diffraction for optical frequency combs generation

Sergey Mantsevich, Konstantin Yushkov, Andrey Voloshin

Proceedings Volume 11210, 112100G (2019) https://doi.org/10.1117/12.2540191

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Proceedings Article | 4 March 2019 Paper

Spectrum collapse, narrow lines, and soliton combs with multi-frequency laser diodes locked to optical microresonators

I. Bilenko, N. Kondratiev, V. Lobanov, R. Galiev, N. Pavlov, A. Voloshin, A. Gorodnitsky, S. Koptyaev, M. Gorodetsky

Proceedings Volume 10904, 109040K (2019) https://doi.org/10.1117/12.2508404

KEYWORDS: Semiconductor lasers, Microresonators, Solitons, Frequency combs, Laser applications, Resonators, Laser resonators, Laser optics, Laser stabilization

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Proceedings Article | 4 March 2019 Presentation + Paper

Experimental observation of above billion quality factor in silicon crystalline optical whispering gallery mode resonators

Igor Bilenko, Artem Shitikov, Valery Lobanov, Nikita Kondratiev, Andrey Voloshin, Michael Gorodetsky

Proceedings Volume 10904, 1090402 (2019) https://doi.org/10.1117/12.2508783

KEYWORDS: Silicon, Resonators, Absorption, Polishing, Crystals, Microresonators, Surface finishing, Crystal optics, Mid-IR

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Showing 5 of 7 publications

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