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

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

Mar 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011opten..50c5201c&link_type=abstract

Optical Engineering, Volume 50, Issue 3, pp. 035201-035201-8 (2011).

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Methodology

Actuators, Holographic Optical Elements, Position Measurement, Suspensions (Mechanical Components), Holographic Optical Elements, Holographic Gratings, Optical Elements, Devices, And Systems, Spatial Dimensions

Scientific paper

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.

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