All-optical AND/NAND logic gates using semiconductor microresonators

We demonstrate all-optical AND and NAND logic gate operations by nonlinear absorption in a single critically coupled semiconductor micro-racetrack resonator. The device is pumped with two counter-propagating data streams tuned to one of its resonance wavelengths and probed at the next higher resonance wavelength. We investigate and compare the performance of both InP and GaAs devices in terms of switching energy and speed. The GaAs gate demonstrates operation up to 30 Gb/s.

[1]  R A Wilson,et al.  Wavelength conversion in GaAs micro-ring resonators. , 2000, Optics letters.

[2]  Equivalence of diffusive conduction and giant ambipolar diffusion , 2002 .

[3]  S D Smith,et al.  Optical bistability, photonic logic, and optical computation. , 1986, Applied optics.

[4]  S. Kanakaraju,et al.  Laterally coupled InP-based single-mode microracetrack notch filter , 2003, IEEE Photonics Technology Letters.

[5]  Brent E. Little,et al.  TOWARD VERY LARGE-SCALE INTEGRATED PHOTONICS , 2000 .

[6]  J. H. Bechtel,et al.  Two-photon absorption in semiconductors with picosecond laser pulses , 1976 .

[7]  Richard A. Soref,et al.  Carrier-induced change in refractive index of InP, GaAs and InGaAsP , 1990 .

[8]  Vien Van,et al.  Optical signal processing using nonlinear semiconductor microring resonators , 2002 .

[9]  D. A. Fraser,et al.  The physics of semiconductor devices , 1986 .

[10]  J E Heebner,et al.  Enhanced all-optical switching by use of a nonlinear fiber ring resonator. , 1999, Optics letters.

[11]  E. W. Stryland,et al.  Chapter 4 - Optical Nonlinearities in the Transparency Region of Bulk Semiconductors , 1998 .

[12]  P.-T. Ho,et al.  Compact microring notch filters , 2000, IEEE Photonics Technology Letters.

[13]  G. Stegeman,et al.  Nonlinear integrated optics , 1985 .

[14]  S. M. Sze,et al.  Physics of semiconductor devices , 1969 .

[15]  Y. Kim,et al.  All-optical switching in a laterally coupled microring resonator by carrier injection , 2003, IEEE Photonics Technology Letters.