Multibeam light source using optical waveguide for optical recording

Hideyo Okumura; Kiyotaka Arai; Norikazu Kawamura; Haruki Tokumaru; Haruo Okuda

doi:10.1117/12.399343

18 September 2000 Multibeam light source using optical waveguide for optical recording

Hideyo Okumura, Kiyotaka Arai, Norikazu Kawamura, Haruki Tokumaru, Haruo Okuda

Proceedings Volume 4090, Optical Data Storage 2000; (2000) https://doi.org/10.1117/12.399343
Event: Optical Data Storage, 2000, Whistler, BC, Canada

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.

Citation Download Citation

Hideyo Okumura, Kiyotaka Arai, Norikazu Kawamura, Haruki Tokumaru, and Haruo Okuda "Multibeam light source using optical waveguide for optical recording", Proc. SPIE 4090, Optical Data Storage 2000, (18 September 2000); https://doi.org/10.1117/12.399343

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