1 Ocak 2011 Dergi makalesi Açık Erişim

Ulusoy, Erdem; Onural, Levent; Ozaktas, Haldun M.

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  "@id": 22905, 
  "@type": "ScholarlyArticle", 
  "creator": [
    {
      "@type": "Person", 
      "affiliation": "Bilkent Univ, Dept Elect & Elect Engn, TR-06800 Ankara, Turkey", 
      "name": "Ulusoy, Erdem"
    }, 
    {
      "@type": "Person", 
      "affiliation": "Bilkent Univ, Dept Elect & Elect Engn, TR-06800 Ankara, Turkey", 
      "name": "Onural, Levent"
    }, 
    {
      "@type": "Person", 
      "affiliation": "Bilkent Univ, Dept Elect & Elect Engn, TR-06800 Ankara, Turkey", 
      "name": "Ozaktas, Haldun M."
    }
  ], 
  "datePublished": "2011-01-01", 
  "description": "Imperfections and nonrobust behavior of practical multilevel spatial light modulators (SLMs) degrade the performance of many proposed full-complex amplitude modulation schemes. We consider the use of more robust binary SLMs for this purpose. We propose a generic method, by which, out of K binary (or 1 bit) SLMs of size M x N, we effectively create a new 2(K)-level (or K bit) SLM of size M x N. The method is a generalization of the well-known concepts of bit plane representation and decomposition for ordinary gray scale digital images and relies on forming a properly weighted superposition of binary SLMs. When K is sufficiently large, the effective SLM can be regarded as a full-complex one. Our method is as efficient as possible from an information theoretical perspective. A 4f system is discussed as a possible optical implementation. This 4f system also provides a means for eliminating the undesirable higher diffraction orders. The components of the 4f system can easily be customized for different production technologies. (C) 2011 Optical Society of America", 
  "headline": "Full-complex amplitude modulation with binary spatial light modulators", 
  "identifier": 22905, 
  "image": "https://aperta.ulakbim.gov.tr/static/img/logo/aperta_logo_with_icon.svg", 
  "license": "http://www.opendefinition.org/licenses/cc-by", 
  "name": "Full-complex amplitude modulation with binary spatial light modulators", 
  "url": "https://aperta.ulakbim.gov.tr/record/22905"
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