Efficient photon coupling from a diamond nitrogen vacancy center by integration with silica fiber
At a Glance
Section titled âAt a Glanceâ| Metadata | Details |
|---|---|
| Publication Date | 2015-10-01 |
| Journal | DSpace@MIT (Massachusetts Institute of Technology) |
| Authors | Rishi N. Patel, Tim Schröder, Noel Wan, Luozhou Li, Sara Mouradian |
| Institutions | Massachusetts Institute of Technology |
Abstract
Section titled âAbstractâA central goal in quantum information science is to efficiently interface photons with single optical modes for quantum networking and distributed quantum computing. Here, we introduce and experimentally demonstrate a compact and efficient method for the low-loss coupling of a solid-state qubit, the nitrogen vacancy (NV) center in diamond, with a single-mode optical fiber. In this approach, single-mode tapered diamond waveguides containing exactly one high quality NV memory are selected and integrated on tapered silica fibers. Numerical optimization of an adiabatic coupler indicates that near-unity-efficiency photon transfer is possible between the two modes. Experimentally, we find an overall collection efficiency between 16% and 37% and estimate a single photon count rate at saturation above 700 kHz. This integrated system enables robust, alignment-free, and efficient interfacing of single-mode optical fibers with single photon emitters and quantum memories in solids.
Tech Support
Section titled âTech SupportâOriginal Source
Section titled âOriginal Sourceâ- DOI: None