Miniaturized suspension structure for precise flying height positioning measurement using a swing arm actuator with a holographic optical element module sensor

Po-Chien Chou; Yu-Cheng Lin; Stone Cheng

doi:10.1117/1.3549259

1 March 2011 Miniaturized suspension structure for precise flying height positioning measurement using a swing arm actuator with a holographic optical element module sensor

Po-Chien Chou, Yu-Cheng Lin, Stone Cheng

Author Affiliations +

Optical Engineering, Vol. 50, Issue 3, 035201 (March 2011). https://doi.org/10.1117/1.3549259

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.

©(2011) Society of Photo-Optical Instrumentation Engineers (SPIE)

Citation Download Citation

Po-Chien Chou, Yu-Cheng Lin, and Stone Cheng "Miniaturized suspension structure for precise flying height positioning measurement using a swing arm actuator with a holographic optical element module sensor," Optical Engineering 50(3), 035201 (1 March 2011). https://doi.org/10.1117/1.3549259

Published: 1 March 2011

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