Authors: | A. Malik, S. Dwivedi, L. Van Landschoot, M. Muneeb, Y. Shimura, G. Lepage, J. Van Campenhout, W. Vanherle, T. Van Opstal, R. Loo, G. Roelkens | Title: | Ge-on-Si and Ge-on-SOI thermo-optic phase shifters for the mid-infrared | Format: | International Journal | Publication date: | 11/2014 | Journal/Conference/Book: | Optics Express
| Editor/Publisher: | Optical Society of America, | Volume(Issue): | 22(23) p.28479-28488 | DOI: | 10.1364/OE.22.028479 | Citations: | 102 (Dimensions.ai - last update: 29/9/2024) 96 (OpenCitations - last update: 27/6/2024) Look up on Google Scholar
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Abstract
Germanium-on-silicon thermo-optic phase shifters are demonstrated
in the 5 um wavelength range. Basic phase shifters require 700
mW of power for a 2pi phase shift. The required power is brought down
to 80 mW by complete undercut using focused ion beam. Finally an
efficient thermo-optic phase shifter is demonstrated using germanium on
SOI platform. A tuning power of 105 mW is achieved for Ge-on-SOI which
is lowered to 16 mW for a free standing phase shifter. Related Research Topics
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