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Proceedings Paper

Implementation of a micro-optical pickup using a focusing waveguide grating coupler
Author(s): Mun Cheol Paek; Yeung Joon Sohn; Dongwoo Suh; Hojun Ryu; Yongwoo Park
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Paper Abstract

A micro-optical pickup has been implemented by using a focusing waveguide grating coupler. The grating coupler was designed and fabricated on a single mode BPSG (boron phosphor silica glass) waveguide layer. The coupling area was 1×1mm2 containing more than 1,500 grating lines, where the maximum and minimum grating pitch were 296nm and 811nm, respectively. The focal length and the numerical aperture of the present grating coupler were 530 μm and 0.68 with 632.8nm He-Ne red laser. The full width half maximum diameter of the focal spot was measured to be 450 nm and 510 nm in x and y direction.

Paper Details

Date Published: 16 September 2003
PDF: 6 pages
Proc. SPIE 5069, Optical Data Storage 2003, (16 September 2003); doi: 10.1117/12.532754
Show Author Affiliations
Mun Cheol Paek, Electronics and Telecommunications Research Institute (South Korea)
Yeung Joon Sohn, Electronics and Telecommunications Research Institute (South Korea)
Dongwoo Suh, Electronics and Telecommunications Research Institute (South Korea)
Hojun Ryu, Electronics and Telecommunications Research Institute (South Korea)
Yongwoo Park, Electronics and Telecommunications Research Institute (South Korea)


Published in SPIE Proceedings Vol. 5069:
Optical Data Storage 2003
Michael O'Neill; Naoyasu Miyagawa, Editor(s)

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