We propose a write-once recording technique for multilayered optical waveguide-type holographic cards. The card medium has a construction created by adding a recording layer and a holographic grating layer to the multilayered optical waveguide composed of core and cladding layers. Individual data for each medium were recorded as an arrangement of optically transparent holes formed in the recording layer. Holograms common to all media were designed in the holographic grating layer so that diffracted lights from the holograms could pass through the holes and focus on an image sensor. We succeeded in write-once recording with a memory capacity potential of more than 128 bits.
© 2006 Optical Society of America
Optical Data Storage
Original Manuscript: May 20, 2005
Revised Manuscript: August 14, 2005
Manuscript Accepted: August 19, 2005
Tokinobu Mitasaki and Masakatsu Senda, "Write-once recording for multilayered optical waveguide-type holographic cards," J. Opt. Soc. Am. A 23, 659-663 (2006)