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Related Experiment Video

Updated: Jun 20, 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

Optical implementation of a time-domain beam former.

P B Rolsma, R D Griffin, J N Lee

|September 10, 2009

Summary

This study presents an optical time-domain beam former using a low-cost liquid-crystal television to create eight beams from eight sensors. The novel vector-matrix multiplier architecture enables efficient signal processing for sensor arrays.

Area of Science:

Optoelectronics
Signal Processing
Photonics

Background:

Traditional beamforming systems often require complex electronic components.
Developing cost-effective and low-power solutions for multi-sensor signal processing is crucial.

Purpose of the Study:

To demonstrate an optical implementation of a time-domain beam former.
To utilize a low-cost, low-power two-dimensional spatial light modulator for beam generation.

Main Methods:

The optical architecture employs a vector-matrix multiplier design.
Sensor data is converted into vectors using a total-internal-reflection electro-optic device.
A linear photodiode array detector is used for signal readout.

Main Results:

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Last Updated: Jun 20, 2026

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

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Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping

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Successfully generated eight beams from eight sensors using the optical system.
The system architecture is based on a vector-matrix multiplier.
Experimental data for the broadside beam response was obtained.

Conclusions:

The proposed optical beam former offers a viable low-cost, low-power alternative.
This implementation showcases the potential of spatial light modulators in advanced signal processing.
Further research can explore scalability and performance optimization for diverse sensor applications.