Data and Time |
April 24, 2009, 3:00-4:15 PM |
Location |
Bahen Center for Information Technology (BA), Room 1180 |
Host |
Alex Wong |
Second Order Nonlinearity in Optical Fiber
Chris Sapiano
The Edward S. Rogers Sr. Department of Electrical and Computer Engineering (Photonics)
Abstract:
Silica glass, owing to its inversion symmetry, does not exhibit even ordered nonlinear
susceptibilities. However it has been observed that heating and cooling a glass sample
under the influence of a DC electric field (a process known as thermal poling) a significant second order nonlinearity can be induced. I will discuss a special class of
optical fibers which have undergone the thermal poling process. There will be specific
focus on our research towards the potential for creating all-fiber frequency conversion
devices. The challenges surrounding this research and future potential of these fibers
will also be discussed.
Biography:
Chris Sapiano received a B.A.Sc. degree with honours from University of Toronto in
Engineering Science (physics option). During his undergraduate thesis research he worked
under Prof. Li Qian on the design and construction of erbium doped fiber laser systems
for use in passively mode-locked laser systems. Following this he fast-tracked into the
PhD program in Electrical Engineering as a member of the Photonics Group. His research,
supervised by Prof. Stewart Aitchison and Prof. Li Qian, has focused on simulation of
various aspects of nonlinear generation in thermally poled silica fibers.
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