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Compact bandwidth-tunable microring resonators.

Long Chen1, Nicolás Sherwood-Droz, Michal Lipson

  • 1School of Electrical and Computer Engineering, Cornell University, Ithaca, New York 14853, USA.

Optics Letters
|November 21, 2007
PubMed
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We developed compact microring resonators on silicon-on-insulator for optical signal processing. These devices offer tunable bandwidth and high extinction ratios, enabling efficient reconfigurable filtering and routing applications.

Area of Science:

  • Photonics
  • Integrated Optics
  • Materials Science

Background:

  • Microring resonators are crucial for integrated optical circuits.
  • Achieving tunable bandwidth and compact footprints is essential for advanced optical signal processing.

Purpose of the Study:

  • To design and demonstrate novel compact microring resonators.
  • To achieve tunable bandwidth and high performance for integrated optical applications.

Main Methods:

  • Utilized interferometric couplers for device design.
  • Employed thermal tuning for bandwidth control.
  • Fabricated devices on a silicon-on-insulator platform.

Main Results:

  • Demonstrated tunable bandwidth ranging from 0.1 to 0.7 nm.

Related Experiment Videos

  • Achieved extinction ratios exceeding 23 dB.
  • Obtained a footprint smaller than 0.001 mm(2).

    • Conclusions:

    • The novel microring resonators are highly suitable for integrated optical signal processing.
    • The demonstrated devices enable reconfigurable filtering and routing functionalities.
    • The compact size and tunable bandwidth offer significant advantages for photonic integrated circuits.