Extended Data Fig. 4: Simulated shift ratio as a function of the detuning of the laser.
From: On-chip electro-optic frequency shifters and beam splitters
The simulated two-resonator device is optimized for high optical bandwidth. Design parameters: \(\gamma \,=\,2{\rm{\pi }}\times 20\,{\rm{GHz}}\) (leads to a \({\kappa }_{{\rm{e}}}\,=\,2{\rm{\pi }}\times 10\,{\rm{GHz}}\)), \({\kappa }_{{\rm{int}}}\,=\,2{\rm{\pi }}\times 170\,{\rm{MHz}}\), \({\omega }_{{\rm{m}}}=2{\rm{\pi }}\times 28.2\,{\rm{GHz}}\). A 3-dB optical bandwidth of \( \sim 14\,{\rm{GHz}}\) can be achieved using a critical-drive microwave power of \(1.35\,{\rm{W}}\) with a \(26.7\,{\rm{dB}}\) suppression of parasitic sidebands and \(0.13\,{\rm{dB}}\) on-chip loss. The microwave power for a 50–50 split on such a device is expected to be \(238\,{\rm{mW}}\).
