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Publication detail

Authors: D. Taillaert, P. Bienstman, R. Baets
Title: Compact efficient broadband grating coupler for silicon-on-insulator waveguides
Format: International Journal
Publication date: 12/2004
Journal/Conference/Book: Optics Letters
Volume(Issue): 29(23) p.2749-2751
Internal Reference: [N-334]
Download: Download this Publication (280KB) (280KB)

Abstract

We have designed a high-efficiency broadband grating coupler for coupling between silicon-on-insulator (SOI) waveguides and optical fibers. The grating is only 13 µm long and 12 µm wide, and the size of the grooves is optimized numerically. For TE polarization the coupling loss to single-mode fiber is below 1dB over a 35-nm wavelength range when using SOI with a two-pair bottom reflector. The tolerances to fabrication errors are also calculated. © 2004 Optical Society of America

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