We propose a return-to-zero on-off keying （RZ-OOK） to non-return-to-zero （NRZ） OOK conversion scheme based on a single custom-designed fiber Bragg grating （FBG）. The custom-made FBG is designed and synthesized u...We propose a return-to-zero on-off keying （RZ-OOK） to non-return-to-zero （NRZ） OOK conversion scheme based on a single custom-designed fiber Bragg grating （FBG）. The custom-made FBG is designed and synthesized using discrete layer-peeling algorithm. It is shown that such a FBG can replace the combination of interferometer and the cascaded filter that are invariably employed together in the reported schemes for RZ-OOK to NRZ-OOK format conversion. Simulation results show that the input 20-Gb/s RZ-OOK signals with different duty cycles can be converted into NRZ-OOK signals with high Q-factor.展开更多
基金supported by the National Natural Science Foundation of China(No.61178030)the Natural Science Foundation of Guangdong Province,China(No.S201101000122)+1 种基金the Fundamental Research Funds for the Central Universities,China(No.HUST2013TS047)the Fundamental Research Funds of Foshan University
文摘We propose a return-to-zero on-off keying （RZ-OOK） to non-return-to-zero （NRZ） OOK conversion scheme based on a single custom-designed fiber Bragg grating （FBG）. The custom-made FBG is designed and synthesized using discrete layer-peeling algorithm. It is shown that such a FBG can replace the combination of interferometer and the cascaded filter that are invariably employed together in the reported schemes for RZ-OOK to NRZ-OOK format conversion. Simulation results show that the input 20-Gb/s RZ-OOK signals with different duty cycles can be converted into NRZ-OOK signals with high Q-factor.
