Reconfigurable microwave photonic transversal filter based on an integrated optical micro-comb source

Xingyuan Xu; Jiayang Wu; Mengxi Tan; Thach G. Nguyen; Sai T. Chu; Brent E. Little; Roberto Morandotti; Arnan Mitchell; David J. Moss

doi:10.1117/12.2508152

4 March 2019 Reconfigurable microwave photonic transversal filter based on an integrated optical micro-comb source

Xingyuan Xu, Jiayang Wu, Mengxi Tan, Thach G. Nguyen, Sai T. Chu, Brent E. Little, Roberto Morandotti, Arnan Mitchell, David J. Moss

Author Affiliations +

Proceedings Volume 10921, Integrated Optics: Devices, Materials, and Technologies XXIII; 1092104 (2019) https://doi.org/10.1117/12.2508152
Event: SPIE OPTO, 2019, San Francisco, California, United States

Abstract

We demonstrate an 80-tap radio frequency (RF) transversal filter based on a 49GHz-spacing integrated micro-comb source. By employing a record 80 micro-comb lines, or taps, for the transversal filter, we achieve very high performance including a Q_RF factor more than four times higher than previous results. Our experimental results match well with theory, showing that our transversal filter is a competitive solution to implement advanced adaptive RF filters with high frequency selectivity and reconfigurability, and with potentially lower cost and footprint. This approach is promising for applications in modern radar and satellite communications systems.

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Xingyuan Xu, Jiayang Wu, Mengxi Tan, Thach G. Nguyen, Sai T. Chu, Brent E. Little, Roberto Morandotti, Arnan Mitchell, and David J. Moss "Reconfigurable microwave photonic transversal filter based on an integrated optical micro-comb source", Proc. SPIE 10921, Integrated Optics: Devices, Materials, and Technologies XXIII, 1092104 (4 March 2019); https://doi.org/10.1117/12.2508152

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