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Proceedings Paper

Multibeam light source using optical waveguide for optical recording
Author(s): Hideyo Okumura; Kiyotaka Arai; Norikazu Kawamura; Haruki Tokumaru; Haruo Okuda
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Paper Abstract

We have developed a multi-beam light source using a passive device that narrows the optical spot pitch in a multi-beam optical head. It consists of an optical-fiber input system and an optical waveguide. Using an experimental multi-beam light source, we demonstrated optical output of 12 mW with a propagation efficiency of 30% and wave-front aberration of less than (lambda) /20. Although the mode type of the waveguide was multi-mode, we could focus the beam at the optical spot within the diffraction limit.

Paper Details

Date Published: 18 September 2000
PDF: 6 pages
Proc. SPIE 4090, Optical Data Storage 2000, (18 September 2000); doi: 10.1117/12.399343
Show Author Affiliations
Hideyo Okumura, NHK Science and Research Labs. (Japan)
Kiyotaka Arai, NHK Science and Research Labs. (Japan)
Norikazu Kawamura, NHK Science and Research Labs. (Japan)
Haruki Tokumaru, NHK Science and Research Labs. (Japan)
Haruo Okuda, NHK Science and Research Labs. (Japan)


Published in SPIE Proceedings Vol. 4090:
Optical Data Storage 2000
Douglas G. Stinson; Ryuichi Katayama, Editor(s)

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