Student Work

Modeling and Characterization of Millimeter-wave Photodiodes for Microwave Photonic Integrated Circuits

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This project involved the characterization and modeling of state-of-the-art photodiodes fabricated at MIT Lincoln Laboratory in the Integrated Nanosystems Group. A preliminary literature review correlated photodiode design with the optimization of 3-dB bandwidth, responsivity, and current-handling. The measurement of the responsivity as a function of wavelength revealed unexpected oscillations as a function of device length, caused by a reflective cavity in the photodiode. Applying an anti-reflective coating to the devices successfully eliminated these oscillations. Characterization of current-handling and responsivity demonstrated that the photodiodes could be fabricated to improve overall performance and realize a high-power, high-speed device for microwave photonic applications.

  • This report represents the work of one or more WPI undergraduate students submitted to the faculty as evidence of completion of a degree requirement. WPI routinely publishes these reports on its website without editorial or peer review.
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  • E-project-032819-153157
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Year
  • 2019
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Date created
  • 2019-03-28
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