Kavli Affiliate: Ronald Hanson
| First 5 Authors: Julia M. Brevoord, Leonardo G. C. Wienhoven, Nina Codreanu, Tetsuro Ishiguro, Elvis van Leeuwen
| Summary:
The negatively charged tin-vacancy (SnV-) center in diamond has emerged as a
promising platform for quantum computing and quantum networks. To connect SnV-
qubits in large networks, in-situ tuning and stabilization of their optical
transitions are essential to overcome static and dynamic frequency offsets
induced by the local environment. Here we report on the large-range optical
frequency tuning of diamond SnV- centers using micro-electro-mechanically
mediated strain control in photonic integrated waveguide devices. We realize a
tuning range of >40 GHz, covering a major part of the inhomogeneous
distribution. In addition, we employ real-time feedback on the strain
environment to stabilize the resonant frequency and mitigate spectral
wandering. These results provide a path for on-chip scaling of diamond
SnV-based quantum networks.
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