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Vertically coupled glass microring resonator channel dropping filters

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7 Author(s)
B. E. Little ; Res. Lab. of Electron., MIT, Cambridge, MA, USA ; S. T. Chu ; W. Pan ; D. Ripin
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Air-clad glass microring resonators vertically coupled to buried channel waveguides are experimentally investigated. Ring radii of 10 μm, and channel drop bandwidths of 5 nm are reported. Vertical coupling eliminates the need for the etching of fine features, and relaxes the alignment of the resonator with respect to the input and output bus waveguides.

Published in:

IEEE Photonics Technology Letters  (Volume:11 ,  Issue: 2 )