160 GHz to 20 GHz variable rate RZ and CS-RZ pulse trains generation by using phase and attenuation tunable high-resolution AWG, and its application to photonic networks

In this paper, 160 GHz to 20 GHz variable rate return to zero (RZ) and carrier suppressed return to zero (CS-RZ) pulse trains generation, reshaping of distorted pulse, and spectrum domain matched filtering for optical code division multiplexing (OCDM) and optical label switching was experimentally demonstrated. We developed an optical pulse synthesizer based on high resolution synthesized arrayed wave-guide grating (AWG) which consists of 32 ports AWG with 20 GHz spacing, tunable attenuators, optical phase shifters, and mirrors. All components are integrated by planer light-wave circuit (PLC) technology. It can tune amplitude and phase of each spectrum mode of pulse train within 3 ms.