Microwave photonic signal generation schemes based on the frequency to time mapping and external modulation are reviewed.We concentrate on those configurations that can provide tunability of frequency,phase of signal,...Microwave photonic signal generation schemes based on the frequency to time mapping and external modulation are reviewed.We concentrate on those configurations that can provide tunability of frequency,phase of signal,modulation formats(i.e.,2PSK,2FSK,etc.),as well as pulse shapes(i.e.,UWBs-,triangle-and arbitraryshaped,etc.).展开更多
We propose the configuration of signal multiplexing with four polarization states and investigate its transmission performance over single-mode fiber links.Using coherent detection and digital signal processing,a demo...We propose the configuration of signal multiplexing with four polarization states and investigate its transmission performance over single-mode fiber links.Using coherent detection and digital signal processing,a demodulation scheme for four-polarization-multiplexed(4PM)system is presented.We discuss the impact of crosstalk from polarization mode dispersion and polarization beam splitter misalignment on the proposed 4PM system.Furthermore,the transmission distance could be doubled to*50 km by employing feedback decision equalizers.展开更多
基金supported by the National Basic Research Program of China (2012CB315704)the National Natural Science Foundation of China (61275068, 61325023, 61335005)the Key Grant Project of Chinese Ministry of Education (313049)
文摘Microwave photonic signal generation schemes based on the frequency to time mapping and external modulation are reviewed.We concentrate on those configurations that can provide tunability of frequency,phase of signal,modulation formats(i.e.,2PSK,2FSK,etc.),as well as pulse shapes(i.e.,UWBs-,triangle-and arbitraryshaped,etc.).
基金supported by the National Basic Research Program of China(‘‘973’’Program)(2012CB315704)the National Natural Science Foundation of China(61275068,61111140390)
文摘We propose the configuration of signal multiplexing with four polarization states and investigate its transmission performance over single-mode fiber links.Using coherent detection and digital signal processing,a demodulation scheme for four-polarization-multiplexed(4PM)system is presented.We discuss the impact of crosstalk from polarization mode dispersion and polarization beam splitter misalignment on the proposed 4PM system.Furthermore,the transmission distance could be doubled to*50 km by employing feedback decision equalizers.
