Fig. 3
From: Nanophotonic Pockels modulators on a silicon nitride platform
High-speed measurements. a Sketch of the setup used for small signal measurements (solid path in the switches) and for the eye diagram measurements (dashed path). VNA: vector network analyzer, AWG: arbitrary waveform generator, OTF: optical tunable filter. b Electro-optic small signal (\(\left| {S_{21}} \right|\) parameter) measurement of several modulators. c Eye diagrams of a C-band ring modulator, measured with a non-return-to-zero scheme (29 − 1 pseudorandom binary sequence) and a peak-to-peak drive voltage of 4.2 V
