Article

All-optical regeneration on a silicon chip

School of Applied and Engineering Physics, Cornell University, Итак, New York, United States
Optics Express (Impact Factor: 3.49). 07/2007; 15(12):7802-9. DOI: 10.1364/OE.15.007802
Source: PubMed
ABSTRACT
We demonstrate optical 2R regeneration in an integrated silicon device consisting of an 8-mm-long nanowaveguide followed by a ring-resonator bandpass filter. The regeneration process is based on nonlinear spectral broadening in the waveguide and subsequent spectral filtering through the ring resonator. We measure the nonlinear power transfer function for the device and find an operating peak power of 6 W. Measurements indicate that the output pulse width is determined only by the bandwidth of the bandpass filter. Numerical modeling of the nonlinear process including free-carrier effects shows that this device can be used for all-optical regeneration at telecommunication data rates.

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