16 September 2016 NV-based quantum memories coupled to photonic integrated circuits
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Abstract
The negatively charged nitrogen vacancy (NV) center in diamond is a promising solid-state quantum memory. However, developing networks comprising such quantum memories is limited by the fabrication yield of the quantum nodes and the collection efficiency of indistinguishable photons. In this letter, we report on advances on a hybrid quantum system that allows for scalable production of networks, even with low-yield node fabrication. Moreover, an NV center in a simple single mode diamond waveguide is shown in simulation and experiment to couple well to a single mode SiN waveguide with a simple adiabatic taper for optimal mode transfer. In addition, cavity enhancement of the zero phonon line of the NV center with a resonance coupled to the waveguide mode allows a simulated <1800 fold increase in the collection of photon states coherent with the state of the NV center into a single frequency and spatial mode.
Conference Presentation
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Sara Mouradian, Sara Mouradian, Tim Schröder, Tim Schröder, Jiabao Zheng, Jiabao Zheng, Tsung-Ju Lu, Tsung-Ju Lu, Hyeongrak Choi, Hyeongrak Choi, Noel Wan, Noel Wan, Michael Walsh, Michael Walsh, Eric Bersin, Eric Bersin, Dirk Englund, Dirk Englund, "NV-based quantum memories coupled to photonic integrated circuits", Proc. SPIE 9920, Active Photonic Materials VIII, 992014 (16 September 2016); doi: 10.1117/12.2236329; https://doi.org/10.1117/12.2236329
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