Additional Calendars
Calendar Views
All
Athletics
Conferences and Meetings
Law School
Special Events

ELEE Oral Comprehensive Exam for Doctoral Candidacy by Jeffrey Rodriguez

When: Friday, May 13, 2022
10:00 AM - 12:00 PM
Where: Science and Engineering Building 285 Old Westport Road, Dartmouth, MA
Cost: Free
Description: Topic: Heterogeneously Integrated RF/Photonic Links for High Dynamic Range Receivers

Location: Science & Engineering Building (SENG), Room 212

Zoom Conference Link: https://umassd.zoom.us/j/97509003269
Meeting ID: 975 0900 3269
Passcode: 531367

Abstract:
The advantages of using optical fiber as a medium of transmission for microwave signals have led to increasing interest in the design and implementation of RF/Photonic links. Several advantages include low loss, low weight, flexibility, immunity to electro-magnetic interference (EMI), and the prospect of higher bandwidth. Using the properties of optical fiber, RF/Photonic links are capable of generating, distributing, and processing microwave signals for applications such as radar, communications, and sensors. Nonetheless, despite its advantages over traditional microwave links, RF photonic links can still suffer from poor dynamic range due to the nonlinear properties and noise contributions of devices used in the electrical-to-optical (E/O) and optical-to-electrical (O/E) conversion processes. Previous attempts to increase the dynamic range include increasing the power of the optical source, improving the photocurrent handling of the detection process, adding nonlinear RF components to the link, and complex linearization techniques to compensate for performance. To address these concerns, we propose to investigate two complementary down-conversion RF photonic link architectures: 1) Coherent phase-modulated (PM) link with an OPLL receiver, and 2) Coherent amplitude-modulated (AM) link with an optical super-heterodyne receiver. Both links will be investigated to demonstrate a RF-to-bits RF photonic receiver with high dynamic range, low noise figure and ease of fabrication. We will also consider a novel heterogenous platform that relies on the integration of semiconductor materials with lithium niobate (LiNbO3) for realizing the transmitter and receiver of the optical links.

Advisor(s): Dr. Yifei Li, Professor, Department of Electrical & Computer Engineering, UMASS Dartmouth

Committee Members:
Dr. David A. Brown, Professor, Department of Electrical & Computer Engineering, UMASS Dartmouth
Dr. Dayalan P. Kasilingam, Professor, Department of Electrical & Computer Engineering, UMASS Dartmouth
Dr. Tariq Manzur, Adjunct Professor, Department of Electrical & Computer Engineering, UMASS Dartmouth; Scientist & Engineer, Naval Undersea Warfare Center (NUWC)
Dr. Siva Yegnanarayanan, Technical Staff, MIT Lincoln Laboratory

Note: All ECE Graduate Students are ENCOURAGED to attend.
All interested parties are invited to attend. Open to the public.

*For further information, please contact Dr. Yifei Li at 508.999.8841 or via email at yifei.li@umassd.edu.
Topical Areas: General Public, University Community, College of Engineering, Electrical and Computer Engineering, STEM