Abstract
In this paper, we did a study of the transmission characteristics of the
AOTF operating with ultrashort light pulses(2ps). Initially one consider
the performance of the device, operating in the nonlinear regime without
loss. It was observed that the effect of dispersion and nonlinearity,
has strong influence on the pulse propagation when one increase the
length of the AOTF. For shorter length of the device the switched pulse
is presenting time broadening. For higher length of the device, pulse
breakup was observed. Considering the AOTF with loss one consider the
device of length 0.25mm with loss of 4dB/mm constructed with an
increasing nonlinearity profile. It was observed that the increase of
the nonlinearity lead the switched pulse from broadening to optical
compression. One can say that one can operate the AOTF in a
configuration that one can avoid the pulse break up and have a switched
pulse with a shorter time duration compared with the lossy AOTF. The
study of the AOTF operating with ultra short optical solitons provides
possibilities for achieving, high efficiency in ultrafast all-optical
signal processing, especially for optical switches, filters and optical
transistors.
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