Recent advances in optical pickup head with holographic optical elements

Makoto Kato; Shin-ichi Kadowaki; Yoshiaki Komma; Yoshikazu Hori

doi:10.1117/12.47026

1 September 1991 Recent advances in optical pickup head with holographic optical elements

Makoto Kato, Shin-ichi Kadowaki, Yoshiaki Komma, Yoshikazu Hori

Proceedings Volume 1507, Holographic Optics III: Principles and Applications; (1991) https://doi.org/10.1117/12.47026
Event: ECO4 (The Hague '91), 1991, The Hague, Netherlands

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.

Citation Download Citation

Makoto Kato, Shin-ichi Kadowaki, Yoshiaki Komma, and Yoshikazu Hori "Recent advances in optical pickup head with holographic optical elements", Proc. SPIE 1507, Holographic Optics III: Principles and Applications, (1 September 1991); https://doi.org/10.1117/12.47026

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