Lecturer: Prof. Avner Peleg
Affiliation: State University of New York at
Buffalo
Abstract:
Transmission rates in broadband optical
waveguide systems can be significantly
enhanced by launching many pulse sequences
through the same waveguide. Since pulses
from different sequences propagate with
different group velocities, intersequence pulse
collisions are very frequent, and can lead to
severe transmission degradation. On the other
hand, the energy and momentum exchange in
pulse collisions can be beneficially used for
controlling the transmission.
In this talk I will present a general framework
for exploiting the collision-induced energy
exchange between the optical pulses for
transmission stabilization and switching. The
method is based on showing that the collision-
induced amplitude dynamics in N-sequence
waveguide systems can be accurately
described by N-dimensional Lotka-Volterra
(LV) models. Stability and bifurcation analysis
for the steady states of the LV models is then
used to develop ways for stabilizing the
propagation and for achieving on-off and off-
on transmission switching. The method works
well for a variety of waveguides and can find
applications in fiber optics communication
systems, in data transfer on computer chips,
and in multiwavelength lasers.