A Polarization-selective Module for Dense Magneto-optical Pick-up Heads
نویسندگان
چکیده
A polarization-selective holographic optical element with compact dimensions of 2.4mm X 1mm X 1mm (width X length X thickness) is proposed. The element includes three modules: a holographic polarizing beam-splitter, a holographic input coupler, and a dove-prism coupler so that a simple and dense optical pick-up head can be achieved. Polarization properties of holographic volume gratings are briefly discussed. Based on the understanding, the fabrication of the element is implemented and described. The element’s performance in magneto-optical pick-up heads is demonstrated by use of a differential detector.
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