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.

Creator

• Morissette, Erin Mae

Publisher

• Worcester Polytechnic Institute

Identifier

• E-project-032819-153157

Advisor

• Titova, Lyubov
• Petkie, Douglas Todd

Year

• 2019

Center

• MIT Lincoln Laboratory-Lexington, Massachusetts Project Center - MQP

Sponsor

• MIT Lincoln Laboratory

Date created

• 2019-03-28

Resource type

• Major Qualifying Project

Major

• Physics

Rights statement

• In Copyright