Abstract
In the world of healthcare, it has always been desirable to have a single test that can screen for multiple different patient ailments at once. Toward this end, a silicon photonics platform has been developed that uses photonic integrated circuits in combination with lasers to simultaneously perform various biological assays, i.e., to screen for biological markers in a patient’s sample. This system uses inexpensive passive flow cards with inexpensive photonic integrated circuits to create a disposable test platform that can be used in point of care environments. However, the necessary bench-top equipment to run an assay with these cards is currently cost prohibitive for point of care applications. In this work, an alternative, custom, low-cost system tailored to the specific needs of this platform has been developed. This system, also called the reader, is able to drive and control various tunable laser sources and read data from photodiodes, which capture radiation power levels at the output of the optical system. The photo generated currents are then amplified in an analog front end, digitized using a microcontroller embedded analog-to-digital converter, and finally stored and transferred to a host PC for post-processing.
Publication Date
8-2024
Document Type
Thesis
Student Type
Graduate
Degree Name
Electrical Engineering (MS)
Department, Program, or Center
Electrical Engineering
College
Kate Gleason College of Engineering
Advisor
Dorin Patru
Advisor/Committee Member
Stefan F. Preble
Advisor/Committee Member
Carlos Barrios
Recommended Citation
Thoburn, Maximilian, "Photonic Integrated Circuit Data Acquisition and Tunable Laser Control for Biomedical Point of Care Systems" (2024). Thesis. Rochester Institute of Technology. Accessed from
https://repository.rit.edu/theses/11910
Campus
RIT – Main Campus
Comments
This thesis has been embargoed. The full-text will be available on or around 3/1/2025.