Title :
High SNR single wavelength readout for quadri-valued MO recording by detecting both magneto-optical rotation angle and ellipticity
Author :
Nakagana, K. ; Itoh, A.
Author_Institution :
Coll. of Sci. & Technol., Nihon Univ., Chiba, Japan
Abstract :
In order to acheive a high signal-to-noise (SNR) readout method for a double-layered magneto optical (MO) disk we have proposed a new method to detect both MO rotation angle and on single wavelength readout. A double-layered MO disk was read by using the new method.
Keywords :
magneto-optical recording; optical disc storage; optical noise; optical rotation; MO rotation angle; double-layered MO disk; double-layered magneto optical disk; ellipticity; high SNR single wavelength readout; magneto-optical rotation angle detection; quadri-valued MO recording; single wavelength readout; Degradation; Disk recording; Educational institutions; Magnetic heads; Magnetooptic recording; Optical detectors; Optical noise; Optical recording; Signal detection; Signal to noise ratio;
Conference_Titel :
Optical Data Storage, 2000. Conference Digest
Conference_Location :
Whisler, BC, Canada
Print_ISBN :
0-7803-5950-X
DOI :
10.1109/ODS.2000.847992
