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Design and Characterization Methodology for Efficient Wide Range Tunable MEMS Filters

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Published on: February 4, 2018

Micro-Ring Resonator-Based Tunable Vortex Beam Emitter.

Liaisan I Bakirova¹, Grigory S Voronkov¹, Vladimir S Lyubopytov¹

¹School of Photonics Engineering and Research Advances (SPhERA), Ufa University of Science and Technology, 32, Z. Validi St., 450076 Ufa, Russia.

|January 23, 2024

Summary

This summary is machine-generated.

We developed a new method to optimize micro-ring resonators for tunable vortex beam emission. This allows precise control over orbital angular momentum (OAM) for advanced optical applications.

Keywords:

critical coupling condition micro-ring resonator orbital angular momentum phase change material photonic integrated circuit vortex beam

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Area of Science:

Photonics and Optical Engineering
Materials Science

Background:

Light beams with orbital angular momentum (OAM) are vital for applications like microscopy and optical communications.
Precise control over the topological charge of vortex beams is essential for these applications.

Purpose of the Study:

To present a novel method for optimizing a micro-ring resonator (MRR) to emit vortex beams with variable OAM orders.
To enable tunable topological charge control for enhanced optical applications.

Main Methods:

Utilized a tunable MRR incorporating antimony selenide (Sb2Se3) phase-change material.
Optimized resonator parameters including waveguide distance, bending angle, and width.
Maximized radiated energy flux density as the optimality criterion.

Main Results:

Demonstrated a method for controlling vortex beam topological charge by tuning the Sb2Se3 refractive index.
Numerical simulations confirmed the effectiveness of the optimization approach.
Achieved tunable OAM emission from the optimized MRR.

Conclusions:

The proposed method effectively optimizes MRRs for tunable vortex beam emission.
This approach facilitates the development of advanced optical beam emitters for diverse applications.
Highlights the potential of phase-change materials in controlling OAM.