Frank Cornelis Penning

Highly miniaturized prototype optical drive for use in portable devices

The realization of a prototype miniaturized 5 mm height optical drive and 28 mm media is reported here. Using the optical light path as a starting point, this presentation will highlight the high degree of miniaturization that is achieved in the field of the optical pickup, optical components and mechanics. Furthermore, the use of newly developed disc media is discussed.

An Integrated Magneto-Optical Sliding Head for First Surface Laser Pulsed Magnetic Field Modulation Magneto-Optical-Recording

A sliding head with integrated focusing lens and magnetic field modulation coil has been designed and manufactured. The component can be used for high data rate, first surface magneto optical recording with a NA=0.85 and λ=400 nm. A coil is integrated into the air bearing surface of a slider to maintain a head-disk distance of around 1 µm. It can generate at least a 200 MHz modulated magnetic field of 15 kA/m fieldstrength. We have tested the coil, slider performance and two stage tracking by using a flat 0.6 mm thick slider.

High-density first surface magneto-optical recording using blue laser high-numerical aperture objective and flying slider

We present a magneto-optical recording head designed for a 400 nm laser with a 0.85 numerical aperture doublet objective lens and a thin film Magnetic Field Modulation coil integrated in a flying slider.