A technique of recovering the data pages from Fourier holograms recorded without the dc components is demonstrated theoretically and experimentally by use of a coaxial holographic storage system. A reconstructed image is obtained by adding a phase-modulated dc component of the signal beam on reading. The bit error rate of the reconstructed image is comparable with that for the hologram recorded with the dc component as well. Since high intensities of the dc components are not recorded in this technique, the dynamic range of the recording media can be saved, which potentially contributes to increasing the number of multiplexed holograms.
© 2006 Optical Society of America
Optical Data Storage
Original Manuscript: March 27, 2006
Revised Manuscript: June 2, 2006
Manuscript Accepted: June 8, 2006
Published: August 9, 2006
Shin Yasuda, Katsunori Kawano, Jiro Minabe, Yasuhiro Ogasawara, Kazuhiro Hayashi, Koichi Haga, Hisae Yoshizawa, and Makoto Furuki, "Coaxial holographic data storage without recording the dc components," Opt. Lett. 31, 2607-2609 (2006)