Single and Multicasting Inverted-Wavelength Conversion at 80 Gb/s Based on a Single Semiconductor Optical Amplifier

We experimentally demonstrate single and multicasting inverted wavelength conversion at 80 Gb/s by using the cross-gain modulation and cross-phase modulation in a single semiconductor optical amplifier(SOA).In all the cases,converted signals with a high extinction ratio(ER)and large eye opening are obtained.For singlechannel wavelength conversion,the ER of the output signal is as high as 30.10 dB.For three-channel wavelength multicasting,high quality converted signals could also be observed.The ERs with three channels are 21.54 dB,18.58 dB and 17.72 dB,respectively.Thus,one-and three-channel wavelength conversion with high performance can be achieved by using a single quantum-well SOA.