Computer Generated Complex Filter for an All Optical and a Digital Optical Hybrid Correlator

  • Birch P
  • Young R
  • Claret-Tournier F
 et al. 
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We present results of a correlation filter utilizing a computer-generated hologram using an analog ferroelectric liquid-crystal spatial light modulator (SLM). The SLM amplitude-modulates light and can induce a 0-p phase shift, which is equivalent to modulating along the real axis. Two pixels are combined into a macropixel using a phase-detour technique enabling full complex modulation. The method is used as the filter for a conventional optical correlator and in a digital-optical hybrid correlator. {\copyright} 2002 Society of Photo-Optical Instrumentation Engineers.

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  • Philip Birch

  • Rupert Young

  • Frederic Claret-Tournier

  • David Budgett

  • Christopher Chatwin

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