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All-optical 40 Gbit/s XOR gate with dual ultrafast nonlinear interferometer

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4 Author(s)
Webb, R.P. ; Photonics Syst. Group, Univ. Coll. Cork, Ireland ; Yang, X. ; Manning, R.J. ; Giller, R.

A novel XOR logic gate using dual cascaded ultrafast nonlinear interferometer elements based on semiconductor optical amplifiers is proposed and demonstrated at 40 Gbit/s. The gate is switched at the line rate rather than twice line rate, as in previously reported differential XOR gates.

Published in:

Electronics Letters  (Volume:41 ,  Issue: 25 )