Abstract
In general, optical correlators can perform very fast signal processing. A header correlator is implemented as a hard-wired series of optical delay lines for which each header bit experiences a different optical delay. If a particular header bit has a corresponding 1 in the look-up table, then the delay will put that header bit inside an autocorrelation time window. If a header bit has a corresponding 0 in the look-up table, then the delay will put that header bit outside an autocorrelation time window. However, a key limitation is that the optical technology does not scale well, thereby making it practical for recognizing only a limited number of header bits. This may not be a significant drawback if only a few number of bits must be recognized in order to route packets to only a small number of ports.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.