K. Baumann, Gabriele Raino, et al.
Proceedings of SPIE - The International Society for Optical Engineering 2010
We demonstrate an all-optical switch based on a waveguideembedded 1D photonic crystal cavity fabricated in silicon-on-insulator technology. Light at the telecom wavelength is modulated at high-speed by control pulses in the near infrared, harnessing the plasma dispersion effect. The actual absorbed switching power required for a 3 dB modulation depth is measured to be as low as 6 fJ. While the switch-on time is on the order of a few picoseconds, the relaxation time is almost 500 ps and limited by the lifetime of the charge carriers. © 2010 Optical Society of America.
K. Baumann, Gabriele Raino, et al.
Proceedings of SPIE - The International Society for Optical Engineering 2010
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Applied Physics Letters
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