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An optical-label recognition system using time-to-space conversion, spatial Vander-Lugt 2-D correlation, and postprocessing with a slit and a delay compensator is proposed. The postprocessing, with the narrow slit and a prism for the time-delay compensation, makes it possible to distinguish the labels, consisting of a time series of optical pulses. For 4-b binary phase-shift-keying labels at 160 Gb/s, eight different labels are proved to be distinguished by the computer simulation. The contrast ratio of autocorrelation to cross-correlation is 1.61 and 2.5 without and with time gating, respectively.
Published in:
Lightwave Technology, Journal of
(Volume:27
,
Issue:
14
)
Date of Publication: July15, 2009
- Page(s):
- 2698 - 2706
- ISSN :
- 0733-8724
- INSPEC Accession Number:
- 10832870
- Digital Object Identifier :
- 10.1109/JLT.2009.2014973
- Product Type:
- Journals & Magazines
- Date of Current Version :
- 21 July 2009
- Issue Date :
- July15, 2009
- Sponsored by :
- IEEE Aerospace and Electronic Systems Society
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