红外与激光工程, 2016, 45 (9): 935006, 网络出版: 2020-10-25  

High density holographic versatile disc (HVD) system using collinear technologies

High density holographic versatile disc (HVD) system using collinear technologies
作者单位
1 HolyMine Corporation, Shizuoka 410-0022, Japan
2 Toyohashi University of Technology, Toyohashi 441-8580, Japan
3 Beijing Institute of Technology, Beijing 100081, China
摘要
Abstract
Collinear Holography was proposed by OPTWARE Corporation, in which the information and reference beams were aligned co-axially and modulated 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. A 2-dimensional digital page data format was used and the shift-multiplexing method was employed to increased recording density of HVD. 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. In HVD, the pre-formatted meta-data reflective layer was used for the focus/tracking servo and reading address information, and the dichroic mirror layer was used for detecting holographic recording information without interfering with the preformatted information. Experimental and theoretical studies suggest that the holographic material is very effective to increased recording density of the system. HVD 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.

Hideyoshi Horimai, Lin Xiao, Liu Jinpeng, Tan Xiaodi. High density holographic versatile disc (HVD) system using collinear technologies[J]. 红外与激光工程, 2016, 45(9): 935006. Hideyoshi Horimai, Lin Xiao, Liu Jinpeng, Tan Xiaodi. High density holographic versatile disc (HVD) system using collinear technologies[J]. Infrared and Laser Engineering, 2016, 45(9): 935006.

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