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Related Experiment Videos

Phase error corrected 4-bit true time delay module using a cascaded 2 x 2 polymer waveguide switch array.

Xiaolong Wang1, Brie Howley, Maggie Y Chen

  • 1University of Texas at Austin, TX 78758, USA.

Applied Optics
|January 18, 2007
PubMed
Summary

A novel 4-bit true time delay device was developed using polymer optical switches and waveguide delay lines. This integrated device offers low power consumption and fast switching times, with negligible radio frequency phase error.

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Area of Science:

  • Photonics and Optical Engineering
  • Integrated Optics
  • Materials Science

Background:

  • True time delay (TTD) devices are crucial for phased array antennas and optical signal processing.
  • Existing TTD devices often face challenges with integration, power consumption, and switching speed.
  • Polymer-based optical components offer potential for miniaturization and low-cost fabrication.

Purpose of the Study:

  • To demonstrate a fully integrated 4-bit true time delay device.
  • To utilize polymer optical switches and waveguide delay lines for enhanced performance.
  • To analyze and validate the radio frequency (RF) phase error characteristics of the device.

Main Methods:

  • Fabrication of a 4-bit TTD device incorporating five 2x2 thermo-optic polymer switches.

Related Experiment Videos

  • Integration of waveguide delay lines for precise optical path management.
  • Experimental characterization of switching time, power consumption, and RF phase error.

    • Main Results:

    • Successful demonstration of a fully integrated 4-bit TTD device.
    • Achieved a maximum power consumption of 143 mW.
    • Observed switching times under 3 ms.
    • Theoretical analysis and experimental validation confirmed negligible RF phase error due to optical switch crosstalk.

    Conclusions:

    • The developed polymer-based TTD device is a viable solution for advanced optical systems.
    • The device exhibits excellent performance metrics, including low power consumption and rapid switching.
    • The negligible RF phase error ensures high signal integrity for demanding applications.