We demonstrate densely folded spiral cavity resonator with Q > 20,000 and an area of 30 ?m × 30 ?m. We show that extended cavity length increases Q and improves the fabrication robustness of resonators.
© 2009 OSA
D. Xu, A. Densmore, J. H. Schmid, R. Ma, M. Vachon, S. Janz, R. McKinnon, J. Lapointe, A. Delâge, E. Post, and P. Cheben, "Spiral Cavity Si Wire Resonators as Label-Free Biosensors," in Advances in Optical Sciences Congress, OSA Technical Digest (CD) (Optical Society of America, 2009), paper IMB2.
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