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Updated: May 12, 2026

The Generation of Higher-order Laguerre-Gauss Optical Beams for High-precision Interferometry

The Generation of Higher-order Laguerre-Gauss Optical Beams for High-precision Interferometry

Published on: August 12, 2013

Theoretical model for angular grating-based integrated optical vortex beam emitters.

Jiangbo Zhu¹, Xinlun Cai, Yujie Chen

¹State Key Laboratory of ASIC & System, Department of Communication Science and Engineering, Fudan University, Shanghai 200433, China. zjb227@gmail.com

|April 19, 2013

Summary

This summary is machine-generated.

We developed a theoretical model for optical vortex beam emitters using microring resonators and angular gratings. This model accurately predicts the generation of cylindrical vector Bessel beams with defined optical orbital angular momentum.

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Area of Science:

Photonics and optical engineering
Integrated optics
Electromagnetics

Background:

Integrated optical vortex beam emitters are crucial for advanced optical applications.
Microring resonators with angular gratings offer a novel approach to generating optical vortex beams.

Purpose of the Study:

To develop a theoretical model for integrated optical vortex beam emitters with angular gratings in microring resonators.
To analyze the characteristics of the emitted beams, including their structure and orbital angular momentum.

Main Methods:

Utilized azimuthally polarized dipole oscillators to model emissions from grating elements.
Derived expressions for far-field components under the paraxial approximation.
Calculated near and far-field distributions.

Main Results:

The model predicts emission in the form of cylindrical vector Bessel beams.
The generated beams possess precisely defined optical orbital angular momentum.
Azimuthal, radial, and longitudinal field components are observed after propagation.

Conclusions:

The theoretical model accurately describes the performance of integrated optical vortex beam emitters.
The developed model shows good agreement with experimental results for field distributions.
This work provides a foundation for designing and optimizing such optical devices.