Digital noise-tolerant silicon nanophotonic switch
Joris Van Campenhout, William M. J. Green, et al.
CLEO 2010
We demonstrate optical modulation rates exceeding the conventional cavity linewidth limit using a silicon coupling modulated microring. Small-signal measurements show coupling modulation was free of the parasitic cavity linewidth limitations at rates at least 6× the cavity linewidth. Eye diagram measurements show coupling modulation achieved data rates >2× the rate attainable by conventional intracavity phase modulation. We propose to use DC-balanced encoding to mitigate the inter-symbol interference in coupling modulation. Analysis shows that coupling modulation can be more efficient than intracavity modulation for large output swings and high-Q resonators. Coupling modulation enables very high-Q resonant modulators to be simultaneously low-power and high-speed, features which are mutually incompatible in typical resonant modulators studied to date. © 2013 Optical Society of America.
Joris Van Campenhout, William M. J. Green, et al.
CLEO 2010
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Optics Express
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IEDM 2012
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CLEO 2014