On-chip broadband Mach-Zehnder interferometer based on a broadband taper-section phase shifter
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In this paper, we propose a new broadband nulling interferometer based on the Si3N4/SiO2 platform which utilizes a π-phase shifter. This π-phase shift multimode interference Mach-Zehnder interferometer (πPS MMI-MZI) leverages a novel low phase shift error (... ...
