Fig. 4: Conversion efficiency.
From: Bidirectional interconversion of microwave and light with thin-film lithium niobate
On-chip conversion efficiency (blue) and cooperativity (red) as a function of the peak optical pump power in the input waveguide. The discontinuity in the CW and quasi-CW pump data is due to switching to different pairs of optical modes during the measurements. The maximum conversion efficiency is recorded with a peak pump power of 13.0 dBm. The dashed lines are the theoretical predictions obtained from the data measured with a quasi-CW pump. The measured intrinsic microwave Q under different optical pump powers are presented in the upper panel. The error bars show the standard derivations of the measurements.
