We demonstrate a 10-Gb/s all-optical XOR gate based on polarization rotation induced by Kerr effect in a single highly nonlinear fiber (HNLF). Using 2 km of HNLF with a nonlinear coefficient of 9.1 W/sup -1//spl middot/km/sup -1/, we obtain a 25-dB extinction ratio at the XOR output.
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Yu et al. (2005) studied this question.
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