All-optical AND gate operating on 10 Gbit/s signalsat the samewavelength using four-wave mixing in a semiconductor laser amplifier

Bit error ratio measurements on a new optical AND gate using four-wave mixing in a semiconductor laser amplifier and operating on degenerate wavelength input signals are presented. Operation on two 10 Gbit/s data streams with BER < 10-10 shows the potential for using the device in high bit rate optical networks.