| Autor: |
Westerveld WJ; Faculty of Applied Sciences, Delft University of Technology, Delft, The Netherlands. w.j.westerveld@tudelft.nl, Pozo J, Harmsma PJ, Schmits R, Tabak E, van den Dool TC, Leinders SM, van Dongen KW, Urbach HP, Yousefi M |
| Jazyk: |
angličtina |
| Zdroj: |
Optics letters [Opt Lett] 2012 Feb 15; Vol. 37 (4), pp. 479-81. |
| DOI: |
10.1364/OL.37.000479 |
| Abstrakt: |
Recently there has been growing interest in sensing by means of optical microring resonators in photonic integrated circuits that are fabricated in silicon-on-insulator (SOI) technology. Taillaert et al. [Proc. SPIE 6619, 661914 (2007)] proposed the use of a silicon-waveguide-based ring resonator as a strain gauge. However, the strong lateral confinement of the light in SOI waveguides and its corresponding modal dispersion where not taken into account. We present a theoretical understanding, as well as experimental results, of strain applied on waveguide-based microresonators, and find that the following effects play important roles: elongation of the racetrack length, modal dispersion of the waveguide, and the strain-induced change in effective refractive index. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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