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Optical Engineering

Miniaturized suspension structure for precise flying height positioning measurement using a swing arm actuator with a holographic optical element module sensor
Author(s): Po-Chien Chou; Yu-Cheng Lin; Stone Cheng
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Paper Abstract

This work presents a means of active actuation of the suspension structure with a holographic optical element (HOE) for the small-form-factor optical-disk drives. The proposed HOE module sensor is mounted on a swing arm swivel-drive mechanism with unique features, including a rotary actuator for tracking and a swing arm nutates along a pivot for focusing. The fabrication methodology for a cantilever-beam-like structure with HOE module sensor is investigated. Furthermore, the performances of optical module with swing arm-swivel actuation are experimentally evaluated to demonstrate the effectiveness of precise flying height positioning measurement method.

Paper Details

Date Published: 1 March 2011
PDF: 9 pages
Opt. Eng. 50(3) 035201 doi: 10.1117/1.3549259
Published in: Optical Engineering Volume 50, Issue 3
Show Author Affiliations
Po-Chien Chou, National Chiao Tung Univ. (Taiwan)
Yu-Cheng Lin, National Chiao Tung Univ. (Taiwan)
Stone Cheng, National Chiao Tung Univ. (Taiwan)


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