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Edge Shift Characteristics of a Magnetooptical Edge Detection Signal

1993; Institute of Physics; Volume: 32; Issue: 11S Linguagem: Inglês

10.1143/jjap.32.5349

1347-4065

Eiji Yamaguchi, Masakuni Yamamoto, Hiroaki Hoshi, Susumu Matsumura,

Optical Network Technologies

We implemented a magnetooptical edge detection system using split sensors. We measured the carrier-to-noise ratio and edge shift quantity of readout signals. The edge shift quantity steeply increases when a recorded domain length in the information track direction becomes shorter than half the diameter of the reading light spot. The edge shift difference between the conventional detection signal and the edge detection signal is discussed.