2005 Corporate Affiliates Program (CAP) Meeting
May 5, 2005

 

 

 

InGaAs Photodiodes: Beyond Telecommunications
3:30 p.m. Friend Center Auditorium F101
Dr. Chris Dries

Abstract: While InGaAs photodiodes were originally developed specifically for fiber optic telecommunications systems, these detectors are now playing important roles in a host of applications ranging from spectroscopy, biomedical imaging, astronomy, and military imaging. Phenomenology within the 0.9 - 1.7 micron wavelength band drives many of these applications, but more often, the ubiquitous availability of light sources within this wavelength band drives many of the specific applications such as optical coherence tomography, laser radar, and adaptive optics. During this talk, we will describe the evolution of InGaAs photodiode technology from single element detectors to staring focal plane arrays, and the applications that these (relatively) new staring arrays serve.

Dr. J. Christopher Dries *96, *99
Vice President for Research & Development, Sensors Unlimited
Dr. Dries graduated from Duke University with a B.S. in Electrical Engineering in 1994. He received his M.A. and Ph.D. degrees from Princeton while working for Professor Stephen Forrest.  Following graduation, he joined Sensors Unlimited's research and development department, developing wide bandwidth photodetectors and electronics in the InP/InGaAs materials system. In 2002 he became a partner in the firm and was appointed Vice President for Research and Development. He is currently responsible for all Research and Development activity at Sensors Unlimited including contract and internal research.  He is a member of the IEEE, and serves on the Board of Princeton University’s Association of Princeton Graduate Alumni.