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Related Experiment Video

Updated: Jun 8, 2026

Characterization of SiN Integrated Optical Phased Arrays on a Wafer-Scale Test Station
05:57

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

Published on: April 1, 2020

Spatial optical beam steerin with an AlGaAs integrated phased array.

F Vasey, F K Reinhart, R Houdré

    Applied Optics
    |September 11, 2010
    PubMed
    Summary
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    This study introduces a novel passive spatial light beam deflector using a waveguide phased-array. The device achieves electro-optic beam steering with indium tin oxide/AlGaAs Schottky junctions, enabling continuous deflection.

    Area of Science:

    • Photonics
    • Optoelectronics
    • Semiconductor Devices

    Background:

    • Spatial light modulators are crucial for optical systems.
    • Existing technologies often face limitations in speed, size, or power consumption.
    • Waveguide-based devices offer potential for miniaturization and integration.

    Purpose of the Study:

    • To present a passive spatial light beam deflector.
    • To demonstrate electro-optic beam steering using a channel waveguide phased-array.
    • To achieve both discrete and continuous beam deflection.

    Main Methods:

    • Utilizing electron-beam lithography to create diffraction gratings for light coupling.
    • Employing indium tin oxide/AlGaAs Schottky junctions for electro-optic phasing.

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

    Published on: January 28, 2019

    Related Experiment Videos

    Last Updated: Jun 8, 2026

    Characterization of SiN Integrated Optical Phased Arrays on a Wafer-Scale Test Station
    05:57

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

    Published on: April 1, 2020

    Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator
    08:39

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

    Published on: January 28, 2019

  • Designing a 43-element rib waveguide array for discrete steering.
  • Implementing sawtooth electrodes for continuous deflection control.

    • Main Results:

    • Demonstrated discrete beam steering at 850 nm using a 43-element array.
    • Achieved continuous deflection over a ±7.2 mrad range at 900 nm.
    • Reported a beam width of 1.5 mrad and a maximum modulation voltage of -8.5 V.
    • Utilized seven sawtooth and offset electrodes for precise beam addressing.

    Conclusions:

    • The developed device offers a compact and efficient solution for spatial light beam deflection.
    • The electro-optic phasing method provides effective control over beam steering.
    • This technology holds promise for applications requiring precise optical beam manipulation.