13 August 1992 Integrated device with diffractive polarization components for a magneto-optical disk head
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Proceedings Volume 1663, Optical Data Storage; (1992); doi: 10.1117/12.137578
Event: Optical Data Storage Topical Meeting, 1992, San Jose, CA, United States
The optical components in the detection train of a conventional magneto-optical (M-O) disk head include a half-wave plate and a polarization beamsplitter. These polarization components are bulky and require specialized mounting hardware. In order to realize a more compact head, we propose that these elements be replaced by an integrated device composed of cascaded volume and surface-relief gratings. In this paper, we describe the proposed system, detail designs for the individual elements, compare theoretical and prototype element performance, and discuss the operational tolerances of these elements.
© (1992) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Charles W. Haggans, Teruo Fujita, Raymond K. Kostuk, "Integrated device with diffractive polarization components for a magneto-optical disk head", Proc. SPIE 1663, Optical Data Storage, (13 August 1992); doi: 10.1117/12.137578; https://doi.org/10.1117/12.137578


Diffraction gratings


Beam splitters


Optical storage

Refractive index

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