Abstract
Simultaneously wavelength conversion of two input data signals based on four-wave mixing (FWM) in a single semiconductor optical amplifier (SOA) is proposed. The two input data signals in the wavelength conversion have a poor extinction ratio (ER) and the data 0 and data 1 are orthogonally polarized. When properly setting the relative polarization state of the two unconventional signals, replicas of the two input signals can be obtained at the idler's wavelength. Simultaneous wavelength conversion for two 10-Gb/s channels is demonstrated experimentally. The ER of two input signals is 4.83dB and 4.81dB respectively before wavelength conversion, while the ER of converted signals is 11.75dB and 10.34dB respectively.
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