Photonic Label Recognition by Time-Space Conversion and 2-D Spatial Filtering With Delay Compensation

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 labe...

Full description

Saved in:
Bibliographic Details
Published in:Journal of lightwave technology 2009-07, Vol.27 (14), p.2698-2706
Main Authors: Tsunematsu, H., Arima, T., Goto, N., Yanagiya, S.-i.
Format: Article
Language:English
Subjects:
2-D filter
Compensation
Conversion
Delay
Delay compensation
Filtering
Gating and risering
Gratings
High speed optical techniques
Holographic optical components
Holography
Labels
Lenses
Optical filters
Optical pulses
optical-label recognition
Recognition
Routing
Slits
Time series
time-to-space conversion
Vander-Lugt correlation
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary: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.
ISSN:0733-8724
1558-2213
DOI:10.1109/JLT.2009.2014973