Dynamic Readout Performance and Signal Fluctuation Suppression Method for a Micro-Optical Head

Hiroo UKITA  Yoshihiro ISOMURA  Yoshitada KATAGIRI  

IEICE TRANSACTIONS (1976-1990)   Vol.E71   No.4   pp.323-326
Publication Date: 1988/04/25
Online ISSN: 
Print ISSN: 0000-0000
Type of Manuscript: Special Section LETTER (Special Issue: Papers from 1988 Spring Convention IEICE)
Category: Optoelectronics

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The Dynamic Readout performance of a micro-optical head, consisting of a semiconductor laser on a flying slider and a glass substrate disk medium has been examined. An antireflection coated (ARC) laser diode, whose reflectivity facing a medium, is less than 5%, is useful in decreasing signal amplitude fluctuation due to the head-to-medium spacing.