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Practical two-dimensional beam steering system using an integrated tunable laser and an optical phased array.

Weichao Ma, Su Tan, Kuankuan Wang

|November 11, 2020

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This study demonstrates a compact solid-state system for two-dimensional beam steering, integrating wavelength tuning and an optical phased array. It achieves precise beam control with high speed and low divergence, paving the way for miniaturized optical systems.

Area of Science:

Optoelectronics
Photonics
Solid-state systems

Background:

Traditional optical systems often rely on bulky components.
Miniaturization is a key goal in developing advanced optical systems.
Precise beam steering is crucial for various photonic applications.

Purpose of the Study:

To demonstrate a practical two-dimensional (2D) beam steering solid-state system.
To integrate wavelength tuning with a 1D optical phased array for 2D beam control.
To investigate system performance, including miniaturization potential and phase error correction.

Main Methods:

Synthesis of a 1D wavelength tunable laser and a 1D optical phased array.
Development of an integrated multiple-channel-interference tunable laser.

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Last Updated: Dec 1, 2025

Characterization of SiN Integrated Optical Phased Arrays on a Wafer-Scale Test Station

Characterization of SiN Integrated Optical Phased Arrays on a Wafer-Scale Test Station

Published on: April 1, 2020

A Protocol for Real-time 3D Single Particle Tracking

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Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator

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Published on: January 28, 2019

Implementation of a particle swarm optimization (PSO) based calibration for phase error correction.

Main Results:

Achieved a 50 nm tuning range with 44 dB side-mode suppression ratio.
Demonstrated low beam divergence (0.63°×0.58°).
Obtained high side-lobe suppression (>10 dB) and high-speed response (<10 µs) within an 18°×7° aliasing-free sweeping range.

Conclusions:

The integrated tunable laser enables miniaturization by eliminating bulky external light sources.
PSO-based calibration effectively corrects phase errors and enhances far-field beam quality.
The developed system offers a practical, miniaturizable, and high-performance solution for 2D optical beam steering.