Extended Data Fig. 6 | Calibration of channel dependent frequency
excursion bandwidth for distance and velocity measurements.
a, Measurement setup. The linearized frequency-modulated microcomb (see
Extended Data Fig. 5 for setup schematic) is amplified and individual channels
are selected by connecting the local oscillator path of the measurement setup
to a calibrated imbalanced MZI (8.075 m). b, The top panel shows the
frequency-excursion bandwidth Bμ determined from independent
measurement of the length of imbalanced MZI. Linear fit related to Raman
self-frequency shift ΩR. The bottom panel shows the residuals of the linear fit.