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Thermal stabilization of a microring modulator using feedback control.

Kishore Padmaraju1, Johnnie Chan, Long Chen

  • 1Department of Electrical Engineering, Columbia University, 500 West 120th Street, New York, New York, USA. kpadmara@ee.columbia.edu

Optics Express
|December 25, 2012
PubMed
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This summary is machine-generated.

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A feedback control system stabilizes silicon microring modulators in fluctuating temperatures. Power monitoring effectively tracks temperature changes, enabling error-free operation of these devices.

Area of Science:

  • Photonics
  • Optical Engineering
  • Materials Science

Background:

  • Silicon microring modulators are sensitive to thermal variations.
  • Thermally volatile environments degrade device performance.
  • Maintaining stable operating temperatures is crucial for photonic devices.

Purpose of the Study:

  • To develop and demonstrate a feedback control system for thermal stabilization of silicon microring modulators.
  • To validate power monitoring as a method for inferring temperature drift.
  • To enable reliable operation of microring modulators in unstable thermal conditions.

Main Methods:

  • Implementation of a feedback control loop.
  • Utilizing power monitoring to detect temperature fluctuations.

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  • Testing silicon microring modulator performance under controlled thermal conditions.

    • Main Results:

    • The feedback control system successfully stabilized the microring modulator.
    • Power monitoring accurately correlated with temperature drift.
    • Error-free performance was achieved in a previously inoperable state.

    Conclusions:

    • Feedback control systems are effective for thermal stabilization of silicon microring modulators.
    • Power monitoring is a viable technique for real-time temperature drift assessment.
    • This approach enhances the robustness and applicability of silicon photonic devices.