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Opt Lett. 2005 Oct 15;30(20):2733-5.

Micrometer-scale all-optical wavelength converter on silicon.

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  • 1School of Electrical and Computer Engineering, Cornell University, Ithaca, New York 14853, USA.


We demonstrate a highly integrated micrometer-scale low-power wavelength converter based on the free-carrier dispersion effect in silicon. The conversion is achieved through all-optical modulation of a silicon ring resonator by use of modulated cw control light. The ring resonator has a radius of 5 microm and a Q of approximately 10,000. Both inverted and noninverted modulation are achieved at a bit rate of 0.9 Gbits/s with a control power of 4.5 mW. The scaling of the required control power for operation with respect to the characteristics of the ring resonator is established.

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