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Published February 15, 2006 | public
Journal Article Open

Transmission characteristics of a Fabry-Perot etalon-microtoroid resonator coupled system


The transmission spectra of a Fabry-Perot etalon coupled to a microtoroid resonator are studied theoretically and experimentally. The resonance line shapes depend strongly on the resonance wavelength detuning and coupling strength between the two resonators. A wide variety of line shapes, ranging from a single to triple peaks, symmetric to asymmetric Fano-like peaks, and notches were predicted and observed experimentally. The capability to modify the spectral line shapes by tuning the coupling between or losses of two resonators may find applications in optical filtering, switching, sensing, and dispersion engineering.

Additional Information

© 2006 Optical Society of America Original Manuscript: September 26, 2005; Manuscipt Accepted: October 30, 2005 We thank Yong Xu and Reginald K. Lee for their generous help. This work is supported by the National Science Foundation (DMR-0120967) and the Defense Advanced Research Projects Agency (N00014-04-1-0094). J. K. S. Poon is grateful for financial support from the Natural Sciences and Engineering Research Council of Canada.


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