Abstract
Microwave photonic filters are fundamental parts in microwave frequency signal processing. The possibility of microwave photonic filters to be integrated in a monolithic chip is highly appealing due to more compact size, weight and lower power consumption. We demonstrate a highly-integrated microwave photonic bandpass filter with wide-frequency tunable range. Both active and passive components including a phase modulator, four cascaded microring resonators and a photodetector, are integrated on a silicon photonic chip. The integrated filter has a wide tunable range from 6.08 GHz to 35.92 GHz and a reconfigurable bandwidth from 0.22 GHz to 0.54 GHz. Spurious-free dynamic range is also measured to examine the link performance. This work is a solid step towards the implementation of an on-chip miniaturized microwave signal processing system.
Published Version
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