TITLE

Add-drop filters utilizing vertically coupled microdisk resonators in silicon

AUTHOR(S)
Koonath, Prakash; Indukuri, Tejaswi; Jalali, Bahram
PUB. DATE
February 2005
SOURCE
Applied Physics Letters;2/28/2005, Vol. 86 Issue 9, p091102
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Add-drop filters, based on vertically coupled microdisk resonators, have been realized in silicon, using a modified separation by implantation of oxygen process. Buried rib waveguides in the bottom-layer silicon, of a two-layer structure, are coupled to microdisk resonators in the top-layer silicon through a silicon dioxide layer formed by oxygen implantation. The radii of the microdisk structures were varied suitably to obtain resonators with slightly shifted resonance wavelengths. The average adjacent channel crosstalk suppression of these filters exhibits an upper limit of 12.11 dB and a lower limit of 6.2 dB over the wavelength band under consideration.
ACCESSION #
16581450

 

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