An all-optical frequency encoded full adder using semiconductor optical amplifiers

Addition of binary data is very important in optical computing and optical signal processing. In this article the author proposes a method of developing all-optical frequency encoded full adder circuit exploiting frequency conversion and polarization switching (PSW) action of semiconductor optical amplifier (SOA). Frequency encoded binary data offer more advantages over conventionally encoded data in terms of less probability of bit errors and greater reliability. Again efficient frequency conversion and faster switching action of SOA makes the scheme attractive.