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Proceedings Paper

Coupling optical fibers to thin semiconductor waveguides
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Paper Abstract

We present a novel type of grating-assisted coupler for coupling light from an optical fibre to a thin semiconductor waveguide. The Dual Grating-Assisted Directional Coupler (DGADC) consists of two gratings, one thick waveguide with a refractive index similar to the refractive index of the fibre, a thin semiconductor waveguide and a layer with refractive index which is between that of the thick and thin waveguides. Specifically, a coupler in silicon on insulator (SO!) has been analysed. The maximum coupling efficiency for this coupler can approach 1 00%, while the minimum coupling length can be around 2mm.

Paper Details

Date Published: 30 May 2003
PDF: 10 pages
Proc. SPIE 4997, Photonics Packaging and Integration III, (30 May 2003); doi: 10.1117/12.479446
Show Author Affiliations
Goran Z. Masanovic, Univ. of Surrey (United Kingdom)
Vittorio M. N. Passaro, Politecnico di Bari (Italy)
Graham T. Reed, Univ. of Surrey (United Kingdom)

Published in SPIE Proceedings Vol. 4997:
Photonics Packaging and Integration III
Randy A. Heyler; David J. Robbins; Ghassan E. Jabbour, Editor(s)

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