Thermo-optical tunable planar ridge microdisk resonator in silicon-on-insulator

In this work, we design and demonstrate planar ridge microdisk resonators in silicon-on-insulator, which assemble the advantages of microring and microdisk resonators. The dependences of resonator optical modes on the slab thickness and the waveguide-to-resonator coupling gap are investigated. The h...

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Bibliographic Details
Published in:Optics express 2011-06, Vol.19 (12), p.11220-11227
Main Authors: Song, Junfeng, Fang, Qing, Luo, Xianshu, Cai, Hong, Liow, T-Y, Yu, M-B, Lo, G-Q, Kwong, D-L
Format: Article
Language:English
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Summary:In this work, we design and demonstrate planar ridge microdisk resonators in silicon-on-insulator, which assemble the advantages of microring and microdisk resonators. The dependences of resonator optical modes on the slab thickness and the waveguide-to-resonator coupling gap are investigated. The highest Q-factor obtained is ~4 × 10(5). Using the thermo-optical effect, we attain a resonance wavelength tuning efficiency of ~66.5 pm/mW. We also compare the transmission spectra measured by using wavelength-scanning method and voltage-scanning method and show potential application for the adopted voltage-scanning method.
ISSN:1094-4087
1094-4087
DOI:10.1364/OE.19.011220