Wavelength-Convertible Optical Switch Based on Cross-Gain Modulation Effect of SOA
All-optical switching based on wavelength conversion using cross-gain modulation (XGM) effect of semiconductor optical amplifier (SOA) has been proposed and demonstrated for 10 Gbps NRZ modulated data signals. Error-free operation is successfully achieved for converted signal with Q-factor of >28.96 at optimum input probe power of −8 dBm. The proposed simple and cost-effective structure of optical switch can be utilized for future ultra-fast optical switching circuit and to expand the optical network.
KeywordsCross-gain modulation (XGM) Semiconductor optical amplifier Wavelength conversion Optical switching
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