Title: An out-of-plane grating coupler for efficient butt-coupling between compact planar waveguides and single-mode fibers
Authors: Taillaert, D ×
Bogaerts, Walter
Bienstman, P
Krauss, TF
Van Daele, P
Moerman, I
Verstuyft, S
De Mesel, K
Baets, R #
Issue Date: Jul-2002
Publisher: Ieee-inst electrical electronics engineers inc
Series Title: IEEE journal of quantum electronics vol:38 issue:7 pages:949-955
Abstract: We have designed and fabricated an out-of-plane coupler for butt-coupling from fiber to compact planar waveguides. The coupler is based on a short second-order grating or photonic crystal, etched in a waveguide with a low-index oxide cladding. The coupler is optimized using mode expansion-based simulations. Simulations using a 2-D model show that up to 74% coupling efficiency between single-mode fiber and a 240-nm-thick GaAs-AlOx waveguide is possible. We have measured 19% coupling efficiency on test structures.
ISSN: 0018-9197
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Centre for Nuclear Engineering
× corresponding author
# (joint) last author

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