Design and Simulation of a Heterogeneous Integration Quantum Sensor Interposer Packaging Platform (QSIP) for Sensing and Grid Networking

The electric grid is ill-equipped to handle the electricity demand of modern times, relying on microtesla level magnetic sensors to monitor fluctuations. The solution to this is a much more sensitive quantum device that can be placed in the grid nodes to better monitor for these fluctuations. Utilizing O-band Raman light, second harmonic generation (SHG), and a Nitrogen Vacancy (NV) ring resonator, the project will make a strong dual readout quantum magnetic sensor. In the first modality, the magnetic-field-induced spin perturbations in the NV centers modulate the efficiency of SHG, producing measurable changes in the polarization state of the O-band light—enabling direct interfacing with standard optical fiber systems. In the second modality, stimulated Raman emission intensity varies with the magnetic-field-dependent NV spin population, providing an additional analog measure of the magnetic field. This model is simulated using Lumerical FDTD, MODE, with some computations in Julia. This will show the feasibility of a mass reproducible dual readout nitrogen vacancy magnetic sensor with sensitivity on the pico/fentotesla scale to be utilized at the grid nodes of the electric grid.