Abstract
A magneto-optical disk has great potential as a erasable optical memory; however, some problems remain to be resolved. In a magnetooptical disk head, a half mirror generally has been used to detect Kerr rotation of the disk. To accomplish high read/write performance of the optical head, some improvements are required to reduce light fluctuation noise of the laser diode induced by the feedback light, which degrades a readout signal, and the power loss at the half mirror, which demands a much higher reliability of the laser diode in high power driving conditions and a high gain servo signal detection circuit.
© 1986 Optical Society of America
PDF ArticleMore Like This
Syuzo Fukunishi, Masami Miyagi, and Nobuhiro Funakoshi
WM49 Conference on Lasers and Electro-Optics (CLEO:S&I) 1985
Y. Yamanaka, R. Katayama, Y. Komatsu, S. Ishikawa, M. Itoh, and Y. Ono
TuC4 Optical Data Storage (ODS) 1991
T. Fujita, M. Kondo, K. Kime, N. Tomikawa, and N. Takeshita
ThAA2 Optical Data Storage (ODS) 1985