SC433 - Introduction to Photodetectors for Optical Communications
Sunday, 11 March
13:00 - 16:00
Short Course Level: Beginner
Joe C. Campbell; University of Virginia, USA
Short Course Description:
This course will cover focus on the photodetectors most frequently employed for optical receivers, primarily p-i-n and avalanche photodiodes. Their performance parameters and the physical effects that determine those parameters will be discussed. This course will also cover fundamental optical receiver concepts and implementations, including direct detection and coherent receivers.
Specific topics will include the following:
Photodiode fundamentals, e.g., responsivity, dark current, bandwidth, and noise
Avalanche photodiode concepts
Photodiodes for photonic integrated circuits, including Si photonics and III-V compound PICs
Receiver fundamentals for amplitude shift keying, phase shift keying, and multi-level modulation, coherent detection
Short Course Benefits:
This course will:
Explain the fundamental operation of different types of photodetectors and compare their relative merits. Participants will obtain a broad overview of the photodetectors that are widely deployed in optical communications.
Present the state-of-the-art for p-i-n, avalanche, and single-photon photodiodes. Participants will be “up-to-date” with respect to device performance and the, concomitant, limitations.
Inform participants of design guidelines and tradeoffs for specific photodetector applications. This will enable participants to specify appropriate detectors.
Discuss the fundamentals of receivers for advanced modulation techniques. Participants will become familiar with amplitude modulation, phase shift keying, multi-level modulation, and coherent receivers.
Short Course Audience:
This course is intended for those interested the fundamentals of photodetectors and optical receivers. For example, what are the factors that determine the maximum bandwidth of a photodiode? What are the current “champion” results and what are the inherent tradeoffs with other performance parameters? The device physics will be presented at a high level although some background in semiconductor devices will be beneficial. What are multi-level modulation techniques and the associated receivers. The course is intended for those who are new to the area, while providing useful information to workers in the field.
Joe C. Campbell is the Lucian Carr Professor of Electrical and Computer Engineering at the University of Virginia in Charlottesville. Professor Campbell’s technical area is photodetectors. At present he is actively involved in single-photon-counting APDs, Si-based optoelectronics, high-speed low-noise avalanche photodiodes, high-power high-linearity photodiodes, and ultraviolet analanche photodiodes. He has coauthored ten book chapters, 420 articles for refereed technical journals, and more than 400 conference presentations. Professor Campbell is a recipient of the Tyndall Award and the IEEE Photonics Award. In 2002 he was inducted into the National Academy of Engineering.