Fig. 4: Proof-of-concept experiment using TSM-based RF filters.
From: Reconfigurable radiofrequency filters based on versatile soliton microcombs
Two PSK signals with 40 Mb/s modulation at 1.96 GHz and 20 Mb/s modulation at 3.05 GHz are filtered by the TSM-based RF filters centered at 1.96 and 3.05 GHz, respectively. a From top to bottom: electrical spectra of original microwave signal, signal after 1.96 GHz filter, and signal after 3.05 GHz filter. b Waveform after 1.96 GHz filter. c Waveform after 3.05 GHz filter.
