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3:30 p.m.
in Room 307 of the Optical Sciences Meinel Building
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Speaker: |
Bahram Jalali
University of
California Los Angeles |
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Title: |
Real-Time Measurements, Rogue Events and Photon Economics |
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Host: |
Nasser Peyghambarian |
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Abstract: |
Rogue events
otherwise known as Outliers or Black Swans are singular and rare
events that have dramatic impact. They appear in seemingly
unconnected systems in the form of oceanic rogue waves, stock
market crashes, gene mutations, and in as spontaneous errors in
communication systems. Attempts to understand the underlying
dynamics of complex systems that lead to such spectacular and
often cataclysmic outcome have been frustrated by insufficient
statistical data due to scarcity of such events, and also by our
inability to perform experiments under controlled conditions. In
this talk we show that nonlinear optical systems also harbor
extreme events and provide a test bench for unveiling their
mystery and for developing models that can help us characterize
risk and volatility associated with rogue events. The key to
realizing this vision is real-time ultrafast measurements that
can capture singular and randomly occurring events.
Fortuitously, the Photonic Time Stretch technology is providing
a powerful and nearly-ideal tool box for reaching this difficult
yet high payoff goal. We show two examples in nonlinear optics
where the ability to capture extreme events has led to
understanding their underlying dynamics which in turn has made
it possible to control them and to harness their potential.
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Bio: |
Bahram Jalali joined the
Electrical Engineering Department at UCLA in 1993 after 4 years
at AT&T Bell Laboratories. He a Fellow of IEEE and of the
Optical Society of America and recipient of the R.W. Wood Prize
from Optical Society of America for the invention and
demonstration of the Silicon Raman Laser. In 2005 he was elected
into the Scientific American Top 50, and received the BrideGate
20 Award in 2001 for his entrepreneurial accomplishments. He
served as a consultant to Intel Corporation from 201-2003. Dr.
Jalali serves on the Board of Trustees of the California Science
Center. He has published over 350 journal and conference papers
and 7 patents. He lives in Brentwood with his wife and 3
children and is an avid sailor. |
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