"Nonlinear Dynamics of Photonic Circuits: Optically Injected Lasers and Passively mode locked two section Q-dots"

Location:

ESB 2001

Abstract:

In this talk I will cover legacy  theoretical findings on optically injected diode lasers. Phenomena such as Hopf bifurcations, Period doubling even Chaos will reviewed using discrete devises. Also potential applications  based on injected diode lasers such as highly tunable but low noise oscillators will be covered. Then I  will turn my attention to two section quantum dot  lasers to cover mode locking dynamics as well  reconfigurable quantum dot monolithic multi-section passive mode-locked lasers. It is expected that future photonic integrated circuits such the simple ones described in this work may be key building blocks on future {\bf Lidar on a Chip} systems that significantly reduce the laser radar system size, cost, and weight, as well as allow for dramatic frequency and waveform agility. This type of technology solution using quantum dot photonic interacted circuits will enable the development of small-scale seeker systems such as small unmanned aerial ve!
hicle's for urban
operations and sensing.

Biography: 

Vassilios is a member of the technical staff and  serves as  technical advisor of the photonics Technologies Branch at the Sensors Directorate of the Air Force Research Laboratory at Wright Patterson Air Force Base. His  responsibilities include managing an  (AFOSR) Lab task on chip scale next-gen laser radar for optical diverse waveform generation. He serves as an DARPA agent for the MTO and STO offices in the areas of microwave photonics and transformational antenna programs. And he is the lead program manager on the Optical Metamaterials AFRL/SENSORS Directorate enterprise.
 
He studied physics at the University of Athens, Greece followed by graduate work at Temple University in Philadelphia, Pennsylvania and wrote his PhD dissertation at the University of New Mexico, Albuquerque, New Mexico in condensed matter theory. In September 1989 joined the Nonlinear Optics Center at Air Force Weapons Laboratory, at Kirtland Air Force Base. He remained with that organization for the next eleven years, working on multiple projects of optical and electronic technologies. Also during that period he held research faculty positions with the Applied Mathematics and the Electrical Engineering Departments at the University of New Mexico, and was a National Research Council Fellow between 1992 and 1994. Subsequently did a stint in corporate Research and Development Laboratories
with Corning Incorporated in Corning, New York as a Senior Research Scientist managing technical interactions with telecommunications system houses and with Bin Optics Corporation in Ithaca, New York as a program manager for next generation photonic product development. Between 2003 and 2005 was member of the faculty at the Applied Mathematics Department at Rochester Institute of Technology.
 
He returned to Air Force Research Laboratory in June of 2005. He has
published extensively, over 80 referred and conference articles on issues of optical injection locking, coherence collapse, optical coupling of semiconductor lasers as well in controlling, synchronizing and communicating with chaotic waveforms, and has lectured in national and international settings. He maintains an h-factor of 19 according the ISI.