Plug‐and‐Play Single‐Photon Devices with Efficient Fiber‐Quantum Dot Interface
Abstract
Incorporating solid‐state quantum emitters into optical fiber networks enables the long‐distance transmission of quantum information and the remote connection of distributed quantum nodes. However, interfacing quantum emitters with fiber optics encounters several challenges, including low coupling efficiency and delicate configuration. In this study, a highly efficient fiber‐interfacing photonic device that directly launches single photons from quantum dots into a standard FC/PC‐connectorized single‐mode fiber is demonstrated. Optimally designed photonic structures based on hole gratings produce an ultra‐narrow directional beam that matches the small numerical aperture of a single‐mode fiber. A pick‐and‐place technique precisely integrates a single miniaturized device into the core of the fiber. This approach realizes a plug‐and‐play single‐photon device that does not require optical alignment and thus guarantees long‐term stability. The results represent a major step toward practical and reliable transmission of quantum light across a fiber network.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Aug 07, 2022
- Source ID
- 10.1002/qute.202200022
Entities
People
- Christopher J K Richardson
- Edo Waks
- Je-Hyung Kim
- Jong Sung Moon
- Kyu‐young Kim
- Woong Bae Jeon
- Young‐ho Ko
Organizations
- Air Force Office of Scientific Research
- Electronics and Telecommunications Research Institute
- Institute for Information and Communications Technology Planning and Evaluation
- National Research Foundation of Korea
- Ulsan National Institute of Science and Technology
- University of Maryland