The silicon-based arrayed waveguide grating[AWG]is widely used due to its compact footprint and its compatibility with the mature CMOS process.However,except for AWGs with ridged waveguides of a few micrometers of cross section,any small process error will cause a large phase deviation in other AWGs,resulting in an increasing cross talk.In this paper,an ultralow cross talk AWG via a tunable microring resonator[MRR]filter is demonstrated on the SOI platform.The measured insertion loss and minimum adjacent cross talk of the designed AWG are approximately 3.2 and-45.1 dB,respectively.Compared with conventional AWG,its cross talk is greatly reduced.
SOI platformarrayed waveguide gratingcross talkmicroring filter arraythermo-optic effect
胡鹤鸣、刘世平、李天文、范永杰、陈华、方青
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College of Science,Kunming University of Science and Technology,Kunming 650093,China
College of Electronic Science and Engineering,Jilin University,Jilin 130012,China
国家重点研发计划Yunnan Provincial Foundation Program国家自然科学基金
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维普
