Tera bytes optical disk with electric tracking control using micro-cavity VCSEL array and PD array

Author

Goto, K.

Author_Institution

Dept. of Inf. & Commun. Technol., Tokai Univ., Shizuoka, Japan

fYear

1997

fDate

11-13 Aug. 1997

Firstpage

21

Lastpage

22

Abstract

We have already developed a lensless optical floppy disk system. In this paper an ultra high density optical memory disk system of T bits/inch/sup 2/ with G bits/s data transfer rate is newly proposed using near field optics, of which tracks are electric controlled. The optical heads in this system use 100/spl times/100 microcavity VCSEL arrays. One track width on the disk is 20 nm which is fine controlled by an electrical method using a 150/spl times/150 photo-diode array and the whole head is controlled by a conventional optical and electric-mechanical method in seeking tracks.

Keywords

electromechanical effects; floppy discs; laser cavity resonators; micromechanical devices; optical disc storage; photodiodes; semiconductor laser arrays; surface emitting lasers; tracking; 20 nm; PD array; data transfer rate; electric controlled; electric tracking control; electric-mechanical method; electrical method; lensless optical floppy disk system; micro-cavity VCSEL array; microcavity VCSEL arrays; near field optics; optical heads; optical-mechanical method; photo-diode array; seeking tracks; tera bytes optical disk; track width; ultra high density optical memory disk system; Diodes; Lubricants; Optical arrays; Optical control; Optical feedback; Optical films; Optical sensors; Optical surface waves; Protection; Vertical cavity surface emitting lasers;

fLanguage

English

Publisher

ieee

Conference_Titel

Vertical-Cavity Lasers, Technologies for a Global Information Infrastructure, WDM Components Technology, Advanced Semiconductor Lasers and Applications, Gallium Nitride Materials, Processing, and Devi

Conference_Location

Montreal, Que., Canada

Print_ISBN

0-7803-3891-X

Type

conf

DOI

10.1109/LEOSST.1997.619087

Filename

619087