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Single-beam data encoding using a holographic angular multiplexing technique |
Applied Optics, Vol. 50, Issue 34, pp. H30-H35 (2011)
http://dx.doi.org/10.1364/AO.50.000H30
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Abstract
We propose a novel configuration for angular multiplexing holographic encoding in which the signal beam and the reference beam are combined into a single beam. By using a spatial light modulator based on twisted nematic liquid crystals, the signal and the reference beams are modulated in amplitude mode and phase mode, respectively. The multiplexed interference patterns with the reference beams of different incident angles are recorded near the Fourier transform plane, and then the signals are selectively reconstructed by the corresponding reference beam. Both the simulation and the experiment of single-beam angular multiplexed holography are performed with consistent results. Compared with the traditional angular multiplexing holographic recording system, the single-beam configuration is more compact, easier to adjust, and less sensitive to the vibration of the environment. Therefore, it will be more attractive for potential applications in many fields, such as high-density signal recording and data encryption.
© 2011 Optical Society of America
OCIS Codes
(090.4220) Holography : Multiplex holography
(210.1635) Optical data storage : Coding for optical storage
ToC Category:
Optimization, Improvement, Enhancement, and Coding in Digital
Holography
History
Original Manuscript: May 9, 2011
Revised Manuscript: September 6, 2011
Manuscript Accepted: September 27, 2011
Published: October 12, 2011
Virtual Issues
Digital Holography and 3D Imaging 2011 (2011) Applied Optics
Citation
Wei Jia, Zhongyu Chen, Fung Jacky Wen, Changhe Zhou, Yuk Tak Chow, and Po Sheun Chung, "Single-beam data encoding using a holographic angular multiplexing technique," Appl. Opt. 50, H30-H35 (2011)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-50-34-H30
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