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Proceedings Paper

Recent advances in optical pickup head with holographic optical elements
Author(s): Makoto Kato; Shin-ichi Kadowaki; Yoshiaki Komma; Yoshikazu Hori
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Paper Abstract

Recent advances in optical pickup heads using holographic optical elements (HOEs) are reviewed, with emphasis on a practical servo-signal detection system that can realize compact integration of HOE, laser diode, photodetectors, and objective lens. This paper presents a new type of holographic servo method that employs a blazed HOE placed in close proximity to the objective lens so that wide allowance range of the optical system is maintained, thus allowing the lens and HOE to move simultaneously. The blazed HOE and the integrated optical system are analyzed and discussed in detail.

Paper Details

Date Published: 1 September 1991
PDF: 9 pages
Proc. SPIE 1507, Holographic Optics III: Principles and Applications, (1 September 1991); doi: 10.1117/12.47026
Show Author Affiliations
Makoto Kato, Matsushita Electric Industrial Co. Ltd. (Japan)
Shin-ichi Kadowaki, Matsushita Electric Industrial Co. Ltd. (Japan)
Yoshiaki Komma, Matsushita Electric Industrial Co. Ltd. (Japan)
Yoshikazu Hori, Matsushita Electric Industrial Co. Ltd. (Japan)


Published in SPIE Proceedings Vol. 1507:
Holographic Optics III: Principles and Applications
G. Michael Morris, Editor(s)

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