All-optical AND gate operating on 10 Gbit/s signals at the same wavelength using four-wave mixing in a semiconductor laser amplifier

Bit error rate 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/sup -10/ shows the potential for using the device in high bit rate optical networks.