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Related Experiment Video

Updated: Sep 11, 2025

Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping

Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping

Published on: March 20, 2017

Theoretical framework for chip-scale wavefront shaping with transverse spatial mode modulation.

Daniel M Harrington, Andrew H Cohen, John Davis

|August 13, 2025

Summary

This summary is machine-generated.

Researchers developed a new compact wavefront shaping method using spatial modes in multimode waveguides. This technique enables dynamic control of light fields, offering broad applications in quantum information and imaging.

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Last Updated: Sep 11, 2025

Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping

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Area of Science:

Photonics and Optical Engineering
Quantum Information Science
Nanotechnology

Background:

Compact wavefront shaping is crucial for visible-wavelength applications like quantum information systems, portable displays, and bio-imaging.
Existing chip-scale optical phased arrays demand complex control of numerous waveguides, resulting in large footprints and restricted fields-of-view.

Purpose of the Study:

To propose and validate a novel framework for wavefront shaping utilizing amplitude and phase control of transverse spatial modes.
To demonstrate dynamic light field control within compact multimode waveguides for advanced optical applications.

Main Methods:

Analytical calculations and numerical simulations were employed to analyze the proposed wavefront shaping technique.
The study focused on manipulating the modal superposition within multimode waveguides, controlling as few as 10 spatial modes.

Main Results:

Demonstrated grating-lobe-free beam steering across a 130° field-of-view with sub-5° resolution and up to -51 dB side lobe suppression from a 5 µm aperture.
Achieved reconfigurable focusing inside and outside the waveguide, coupling to free-space Hermite-Gaussian modes, and generation of non-diffracting Bessel and Airy beams.

Conclusions:

The proposed method offers a compact and versatile alternative to existing wavefront shaping technologies.
The demonstrated capabilities are within reach of near-term experimental implementation, paving the way for advanced photonic devices.