Figure 1
From: Continuous adiabatic frequency conversion for FMCW-LiDAR
Electro-optically driven adiabatic frequency converter. (a) Schematic setup including the pump laser, the coupling prism and the whispering gallery resonator (WGR). An arbitrary function generator (AFG) modulates the eigenfrequency of the cavity and consequently the frequency of the light coupled out of the prism. The beat signal between unconverted light and converted one is detected with a photodiode (PD) and displayed with an oscilloscope. (b) Temporal behaviors of a signal driving the AFG with 20 MHz, of the corresponding normalized beat signal and the derived frequency shifts. The dashed red line shows a linearly scaled version of the driving electrical signal.
