Holographic polarization sensor for magneto-optic heads

T. J. Kim, Chien Wei Han, Raymond K. Kostuk

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations


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.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
Number of pages10
StatePublished - 1994
EventPractical Holography VIII - San Jose, CA, USA
Duration: Feb 7 1994Feb 9 1994

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X


OtherPractical Holography VIII
CitySan Jose, CA, USA

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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