1 May 1994 Holographic polarization sensor for magneto-optic heads
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Magneto-optic data storage is an emerging read/write storage technology with many potential applications in consumer computer systems. One of the limitations to this development is the cost of the read/write head. This device must provide high optical power during the write phase, and sense a small change in the polarization of the beam reflected from an MO disk during the read operation. Typically the head consists of many individual optical components which must be aligned and accurately assembled, and contributes significantly to system cost. Two important elements in the head are a leaky beamsplitter and a polarization beamsplitter. In this presentation we discuss the design parameters and performance characteristics for these beamsplitters formed in dichromated gelatin. Experimental grating performance is also given.
© (1994) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Tae-Jin Kim, Tae-Jin Kim, Chien-Wei Han, Chien-Wei Han, Raymond K. Kostuk, Raymond K. Kostuk, } "Holographic polarization sensor for magneto-optic heads", Proc. SPIE 2176, Practical Holography VIII, (1 May 1994); doi: 10.1117/12.172637; https://doi.org/10.1117/12.172637

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