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Proceedings Paper

Coupling performance and fabrication method of a waveguide grating coupler with non-uniform duty ratio
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Paper Abstract

We proposed a novel grating design of an out-of-plane coupler with non-uniform duty ratio operating at a wavelength of 1.55 μm for the highly efficient coupling from a waveguide to an optical fiber. In order to evaluate the coupling performance, the diffracted output beam profile and the focusing performance due to the variations of duty ratio configuration were investigated by a 2D Bloch-wave analysis. In addition, a simple fabrication method was proposed to realize the grating by the Near-Field Holographic lithography system with variable aperture unit.

Paper Details

Date Published: 12 February 2008
PDF: 7 pages
Proc. SPIE 6897, Optoelectronic Integrated Circuits X, 68970B (12 February 2008); doi: 10.1117/12.762874
Show Author Affiliations
Jeong Su Yang, Inha Univ. (South Korea)
Jun-Ho Sung, Inha Univ. (South Korea)
Beom-hoan O, Inha Univ. (South Korea)
Seung Gol Lee, Inha Univ. (South Korea)
El-Hang Lee, Inha Univ. (South Korea)

Published in SPIE Proceedings Vol. 6897:
Optoelectronic Integrated Circuits X
Louay A. Eldada; El-Hang Lee, Editor(s)

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