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

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Published on: April 1, 2020

Optical switch based on variable aperture.

Hongwen Ren1, Su Xu, Shin-Tson Wu

  • 1Department of Polymer-Nano Science and Technology, Chonbuk National University, Jeonju, Chonbuk, South Korea. hongwen@jbnu.ac.kr

Optics Letters
|May 5, 2012
PubMed
Summary
This summary is machine-generated.

Researchers developed an electrically tunable pixel with a switchable aperture ratio over 80% and a 10 ms response time. This novel optical device offers dynamic control over light transmission for various applications.

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Area of Science:

  • Optoelectronics
  • Materials Science
  • Applied Physics

Background:

  • Traditional optical components often lack dynamic adjustability.
  • Controlling light transmission with high speed and precision is crucial for advanced optical systems.

Purpose of the Study:

  • To engineer a novel pixel with an electrically controllable aperture.
  • To characterize the optical performance and response time of this tunable pixel.

Main Methods:

  • Fabrication of a pixel using a hole-patterned polymer wall.
  • Utilizing a dielectric liquid whose surface is deformed by an applied electric field to alter aperture size.
  • Measurement of aperture ratio and response time.

Main Results:

  • Demonstrated electrical control over pixel aperture size.
  • Achieved a switchable aperture ratio exceeding 80%.
  • Observed a rapid response time of approximately 10 milliseconds.

Conclusions:

  • The developed pixel offers efficient and fast electrical modulation of light.
  • Potential applications include optical attenuators, light shutters, adaptive irises, and information displays.