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Design and modeling of a photonic integrated device for optical vortex generation in a silicon waveguide
R.V. Kutluyarov 1, D.M. Fatkhiev 1, I.V. Stepanov 1, E.P. Grakhova 1, V.S. Lyubopytov 2,1, A.K. Sultanov 1,2

Ufa State Aviation Technical University, 450008, Ufa, Russia, Karla Marxa Street 12,
Skolkovo Institute of Science and Technology, 121205, Moscow, Russia, Bolshoy Boulevard 30, bld. 1

 PDF, 3338 kB

DOI: 10.18287/2412-6179-CO-850

Pages: 324-330.

Full text of article: English language.

We propose and numerically verify a design of the photonic integrated circuit for in-plane generation of a 1st azimuthal order vortex mode in dielectric rectangular waveguides. Radiation is introduced into the proposed structure in a standard way through two grating couplers. Applying a mode coupling and specific phase shift, a field with the required amplitude-phase distribution is formed directly in the output waveguide. The geometric dimensions of the device are simulated and optimized to fit the technological parameters of the silicon-on-insulator platform.

orbital angular momentum, integrated photonics, optical waveguides, in-plane generation, silicon-on-insulator.

Kutluyarov RV, Fatkhiev DM, Stepanov IV, Grakhova EP, Lyubopytov VS, Sultanov AK. Design and modeling of a photonic integrated device for optical vortex generation in a silicon waveguide. Computer Optics 2021; 45(3): 324-330. DOI: 10.18287/2412-6179-CO-850.

This work was partially funded under the Grant of the Russian Science Foundation Project No. 19-49-04112 (simulations and optimization of the device parameters), and under the State Assignment from the Ministry of Science and Higher Education of the Russian Federation for Ufa State Aviation Technical University FEUE-2020-0007 (concept of the device and operation principle). Authors thank Computer Science Research Institute of the Ufa State Aviation Technical University for technical support of performed numerical computations on HPC cluster [https://www.ugatu.su/supercomputer/].


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