All-optical angular sensing based on holography multiplexing with spherical waves

Ching Cherng Sun, Chih Yuan Hsu, Yuh Ouyang, Wei Chia Su, Arthur E.T. Chiou

Research output: Contribution to journalArticlepeer-review

11 Scopus citations


An all-optical angular sensing system based on volume holography is proposed and demonstrated, where a divergent spherical wave is the reference and reading beam for writing and testing, respectively. Under the paraxial condition, analysis shows that angular selectivity is nearly independent of the distance between the hologram and the light source. By choosing an appropriate distance, the entire energy of the source (e.g., an LED) can be employed while maintaining the same resolution for precise angular sensing.

Original languageEnglish
Pages (from-to)2809-2813
Number of pages5
JournalOptical Engineering
Issue number11
StatePublished - Nov 2002


  • Data storage
  • Holography
  • Multiplexing


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