Photonics Research Group Home
Ghent University Journals/Proceedings
About People Research Publications Education Services


Publication detail

Authors: B. Luyssaert, P. Bienstman, P. Vandersteegen, P. Dumon, R. Baets
Title: Efficient Nonadiabatic Planar Waveguide Tapers
Format: International Journal
Publication date: 8/2005
Journal/Conference/Book: Journal of Lightwave Technology
Editor/Publisher: IEEE, 
Volume(Issue): 23(8) p.2462-2468
DOI: 10.1109/jlt.2005.850795
Citations: 53 ( - last update: 14/7/2024)
33 (OpenCitations - last update: 3/5/2024)
Look up on Google Scholar
Download: Download this Publication (278KB) (278KB)


We report taper designs with high transmission efficiencies and with lengths shorter than those needed for adiabatic operation. The tapering occurs between rectangular optical waveguides with the same vertical silicon-on-insulator layer structure, but with different horizontal widths, namely 0.5 and 2.0 µm, and for taper lengths between 0.5 and 3.0 µm. After a comparison between two different optimization methods in a two-dimensional calculation scheme, one of these is repeated using three-dimensional calculations. The results show that, also in the length region where conventional linear and parabolic tapers are not yet adiabatic, tapers with a high efficiency can be designed by applying complex taper structures with more degrees of freedom.

Related Research Topics

Related Projects

Citations (OpenCitations)

Back to publication list