Integrated optical vortex emitter with tunable order of orbital angular momentum

Ivan V. Stepanov; Denis M. Fatkhiev; Vladimir S. Lyubopytov; Ruslan V. Kutluyarov; Albert K. Sultanov; Sergey V. Novikov

doi:10.1117/12.2632209

25 July 2022 Integrated optical vortex emitter with tunable order of orbital angular momentum

Ivan V. Stepanov, Denis M. Fatkhiev, Vladimir S. Lyubopytov, Ruslan V. Kutluyarov, Albert K. Sultanov, Sergey V. Novikov

Author Affiliations +

Proceedings Volume 12295, Optical Technologies for Telecommunications 2021; 1229514 (2022) https://doi.org/10.1117/12.2632209
Event: Nineteenth International Scientific and Technical Conference "Optical Technologies for Communications", 2021, Samara, Russian Federation

Abstract

In this paper we propose a design of an integrated wavelength-tunable vortex beam emitter based on the silicon photonics platform. The proposed device utilizes the free-plasma dispersion effect in order to change the effective index of the ring waveguide, which leads to displacement of the resonant wavelengths. This scheme allows to bypass the dependence of the emitter resonant characteristics from the fabrication errors. Our simulations also show that for the micro-ring resonators with a small free spectral range it becomes possible to switch the emitted vortex order keeping the same wavelength. Such capabilities make the proposed emitter useful in a wide applications range from communication systems to sensors.

Citation Download Citation

Ivan V. Stepanov, Denis M. Fatkhiev, Vladimir S. Lyubopytov, Ruslan V. Kutluyarov, Albert K. Sultanov, and Sergey V. Novikov "Integrated optical vortex emitter with tunable order of orbital angular momentum", Proc. SPIE 12295, Optical Technologies for Telecommunications 2021, 1229514 (25 July 2022); https://doi.org/10.1117/12.2632209

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