Lateral shifting sensitivity of a ground glass for holographic encryption and multiplexing using phase conjugate readout algorithm

Ching Cherng Sun, Wei Chia Su, Bor Wang, Arthur E.T. Chiou

Research output: Contribution to journalArticlepeer-review

37 Scopus citations

Abstract

An encryption-selectable holographic storage algorithm with use of random phase encoding and angular multiplexing is proposed and demonstrated. The pattern for storage can be encrypted and multiplexed with use of a ground glass, which is also used to decrypt the pattern. A phase conjugation of the reference beam is used to generate phase conjugate waves of the stored patterns. The lateral shifting sensitivity of the ground glass used to decrypt the information is theoretically analyzed and is compared with experimental measurement. The shifting tolerance for various ground glasses under imperfection phase reconstruction in the decryption processing is studied.

Original languageEnglish
Pages (from-to)209-224
Number of pages16
JournalOptics Communications
Volume191
Issue number3-6
DOIs
StatePublished - 8 May 2001

Keywords

  • Holographic storage
  • Optical encryption
  • Photorefractive crystal
  • Random phase encoding
  • Shifting sensitivity
  • Volume hologram

Fingerprint

Dive into the research topics of 'Lateral shifting sensitivity of a ground glass for holographic encryption and multiplexing using phase conjugate readout algorithm'. Together they form a unique fingerprint.

Cite this