Backscatter in a high-Q microresonator incoherently couples counterpropagating whispering-gallery modes. Coherent mode coupling between two co-resonant microresonators results in behavior analogous to electromagnetically induced transparency. Including backscatter in a numerical model of coupled-resonator induced transparency can lead to significant modification of this behavior and may explain some experimental observations.

© 2004 Optical Society of America

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