Abstract
With high-bandwidth and on-demand applications continuing to emerge,
next-generation core optical networks will likely require significant improvements
in reconfigurability and ultra-fast operations. Optical signal processing
overcomes the electronic bandwidth limitations with the advantages in terms
of transparency and scalability. We review recent progresses in all-optical
signal processing potentially for ultrahigh speed systems and networks. Starting
from a brief overview of optical signal processing in high-speed optical systems
and networks, we highlight a few key network functionalities, including optical
logic operations, reconfigurable add/drop multiplexing, optical regeneration,
wavelength conversion, format conversion, and phase-sensitive amplification.
Different techniques are investigated and discussed, employing a wide range
of devices and various nonlinearities. Some of experimental results are presented
in both single polarization systems and polarization-division multiplexing
systems.
© 2012 IEEE
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