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Opt Lett. 2011 Apr 15;36(8):1413-5. doi: 10.1364/OL.36.001413.

All-optical switching of a single resonance in silicon ring resonators.

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  • 1School of Applied and Engineering Physics, Cornell University, Ithaca, New York 14853, USA.


We theoretically investigate a wavelength-selective all-optical switch using Raman-induced loss in a silicon resonator add-drop filter. We show that picojoule control pulses can selectively modulate and "erase" a single cavity resonance from full extinction to greater than 97% transmission while leaving adjacent resonances undisturbed. Full switching is achievable in less than 300 ps with only a few hundred femtojoule energy dissipation. This represents, to our knowledge, the first scheme for selective modulation of single resonances of an optical cavity.

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