Large-range tuning and stabilization of the optical transition of diamond tin-vacancy centers by in situ strain control
Julia M. Brevoord (Kavli institute of nanoscience Delft, TU Delft - Communication QuTech, TU Delft - QID/Hanson Lab)
Leonardo G.C. Wienhoven (Kavli institute of nanoscience Delft, TU Delft - Communication QuTech, TU Delft - QID/Hanson Lab)
Nina Codreanu (Kavli institute of nanoscience Delft, TU Delft - QID/Hanson Lab, TU Delft - Communication QuTech)
Elvis van Leeuwen (TU Delft - Applied Sciences, Kavli institute of nanoscience Delft, TU Delft - Communication QuTech)
Mariagrazia Iuliano (Kavli institute of nanoscience Delft, TU Delft - Communication QuTech, TU Delft - QID/Hanson Lab)
Lorenzo De Santis (TU Delft - QID/Hanson Lab, Kavli institute of nanoscience Delft, TU Delft - Communication QuTech)
Christopher Waas (Kavli institute of nanoscience Delft, TU Delft - Communication QuTech, TU Delft - QID/Hanson Lab)
Hans K.C. Beukers (TU Delft - Communication QuTech, TU Delft - QID/Hanson Lab, Kavli institute of nanoscience Delft)
Tim Turan (Kavli institute of nanoscience Delft, TU Delft - Communication QuTech, TU Delft - QID/Hanson Lab)
Carlos Errando-Herranz (TU Delft - Quantum & Computer Engineering, TU Delft - QID/Herranz Lab, TU Delft - Quantum Circuit Architectures and Technology, TU Delft - Communication QuTech, Kavli institute of nanoscience Delft)
Kenichi Kawaguchi (TU Delft - BUS/Quantum Delft, Fujitsu Limited, TU Delft - Quantum Communications Lab)
Ronald Hanson (TU Delft - QN/Hanson Lab, TU Delft - Communication QuTech, TU Delft - QID/Hanson Lab, Kavli institute of nanoscience Delft)
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Abstract
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 resonance frequency and mitigate spectral wandering. These results provide a path for on-chip scaling of diamond SnV-based quantum networks.
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