Title :
All-optical AND/NAND logic gates using semiconductor microresonators
Author :
Ibrahim, Tarek A. ; Grover, R. ; Kuo, L.C. ; Kanakaraju, S. ; Calhoun, L.C. ; Ho, P.T.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Maryland, College Park, MD, USA
Abstract :
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.
Keywords :
III-V semiconductors; gallium arsenide; indium compounds; light absorption; micro-optics; micromechanical resonators; nonlinear optics; optical logic; 30 Gbit/s; GaAs; GaAs gate; InP; all-optical AND/NAND logic gates; counter-propagating data streams; critically coupled semiconductor micro-racetrack resonator; next higher resonance wavelength; nonlinear absorption; resonance wavelengths; semiconductor microresonators; switching energy; switching speed; Absorption; Gallium arsenide; High speed optical techniques; Indium phosphide; Logic devices; Logic gates; Microcavities; Optical resonators; Probes; Resonance;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2003.818049
