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Proceedings Paper

Design and characterization of an out-of-plane polymer waveguide grating coupler
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Paper Abstract

A polymer waveguide grating coupler to vertically couple light between planar waveguide and fiber is proposed and designed. In order to estimate the coupling performance of the proposed coupler with curved and chirped grating, the diffraction characteristics of the waveguide grating with a uniform period as an in/out out-of-plane coupler are investigated. The coupling efficiency and coupling length exhibiting the diffraction characteristics of a uniform waveguide grating with various structure parameters are calculated based on Bloch-wave analysis. With the optimized structure parameters showing the high coupling performance, the overall coupling efficiency of the polymer waveguide grating coupler is obtained by introducing 2D Bloch-wave analysis-based local linear grating model. The calculated overall coupling efficiency of the coupler is determined to be approximately 30%.

Paper Details

Date Published: 9 February 2007
PDF: 10 pages
Proc. SPIE 6476, Optoelectronic Integrated Circuits IX, 647611 (9 February 2007); doi: 10.1117/12.707309
Show Author Affiliations
Jeong Su Yang, Inha Univ. (South Korea)
Chul Hyun Choi, 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. 6476:
Optoelectronic Integrated Circuits IX
Louay A. Eldada; El-Hang Lee, Editor(s)

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