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8 September 2006 Collinear technology for holographic versatile disc (HVD) system
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Proceedings Volume 6343, Photonics North 2006; 63432W (2006)
Event: Photonics North 2006, 2006, Quebec City, Canada
Holographic Versatile Disc (HVDTM) using CollinearTM Technologies is proposed by OPTWARE Corporation, in which the information and reference beams are displayed co-axially by the same SLM. With this unique configuration the optical pickup can be designed as small as the DVD's, and can be placed on one side of the recording disc. In HVDTM structure, the pre-formatted meta-data reflective layer is used for the focus/tracking servo and reading address information, and the dichroic mirror layer is used for detecting holographic recording information without interfering with the preformatted information. A 2-dimensional digital page data format is used and the shift-multiplexing method is employed to increased recording density of HVDTM. Experimental and theoretical studies suggest that the holographic material is very effective to increased recording density of the system. As the servo technology is being introduced to control the objective lens to be maintained precisely to the disc in the recording and the reconstructing process, a vibration isolator is no longer necessary. HVDTM will be compatible with existing disc storage systems, like CD and DVD, and enable us to expand its applications into other optical information storage systems.
© (2006) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Xiaodi Tan, Hideyoshi Horimai, Tsutomu Shimura, Shotaro Ichimura, Ryushi Fujimura, and Kazuo Kuroda "Collinear technology for holographic versatile disc (HVD) system", Proc. SPIE 6343, Photonics North 2006, 63432W (8 September 2006);


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