Paper
9 October 1998 Computational analysis of the multibeam holographic optical head
Ruan Yu, Jiping Wang, Xiaofang Huang, Maohua E.
Author Affiliations +
Abstract
The multi-beam holographic optical head that combines multi- beam with holographic is proposed. This optical head has a light and compact structure, and work with parallel mode. As a result, the data transfer rate of optical disc drive can increase by several or tens times. The designing and fabricating of the key component of the multi-beam holographic optical head based on above designing are discussed also. The mathematical model of this optical head's diffraction is obtained by theory, the simulating of the multi-beam holographic optical head is carried out by computer. As a result, all kinds of signal waveform of each channel are obtained, including data signa, focus error signa, and tracking error signal. It is proved by the result that the multi-beam holographic optical head is a practicable method to realize the parallel reading/writing of optical disc drive.
© (1998) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Ruan Yu, Jiping Wang, Xiaofang Huang, and Maohua E. "Computational analysis of the multibeam holographic optical head", Proc. SPIE 3470, Photorefractive Fiber and Crystal Devices: Materials, Optical Properties, and Applications IV, (9 October 1998); https://doi.org/10.1117/12.326867
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KEYWORDS
Head

Holographic optical elements

Holography

Optical discs

Signal detection

Servomechanisms

Diffraction

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