Photon-Pair Generation in a Heterogeneous Nanophotonic ChipClick to copy article linkArticle link copied!
- Mingwei JinMingwei JinCenter for Quantum Science and Engineering, Stevens Institute of Technology, Hoboken, New Jersey 07030, United StatesMore by Mingwei Jin
- Neil MacFarlaneNeil MacFarlaneDepartment of Electrical and Computer Engineering, Johns Hopkins University, Baltimore, Maryland 21218, United StatesMore by Neil MacFarlane
- Zhaohui MaZhaohui MaCenter for Quantum Science and Engineering, Stevens Institute of Technology, Hoboken, New Jersey 07030, United StatesDepartment of Physics, Stevens Institute of Technology, Hoboken, New Jersey 07030, United StatesMore by Zhaohui Ma
- Yong Meng SuaYong Meng SuaCenter for Quantum Science and Engineering, Stevens Institute of Technology, Hoboken, New Jersey 07030, United StatesDepartment of Physics, Stevens Institute of Technology, Hoboken, New Jersey 07030, United StatesMore by Yong Meng Sua
- Mark FosterMark FosterDepartment of Electrical and Computer Engineering, Johns Hopkins University, Baltimore, Maryland 21218, United StatesMore by Mark Foster
- Yuping Huang*Yuping Huang*E-mail: [email protected]Center for Quantum Science and Engineering, Stevens Institute of Technology, Hoboken, New Jersey 07030, United StatesDepartment of Physics, Stevens Institute of Technology, Hoboken, New Jersey 07030, United StatesMore by Yuping Huang
- Amy Foster*Amy Foster*E-mail: [email protected]Department of Electrical and Computer Engineering, Johns Hopkins University, Baltimore, Maryland 21218, United StatesMore by Amy Foster
Abstract
Integrated silicon photonics has played an important role in advancing the applications of quantum information and quantum science. However, it is challenging to integrate all components with state-of-the-art performance using only a homogeneous platform. Here, by combining high nonlinearity and low losses in a heterogeneous silicon platform, we efficiently generate high-quality photon pairs through spontaneous four-wave mixing in a hydrogenated amorphous silicon waveguide and route them off-chip through a low-loss silicon nitride waveguide. A record high coincidence-to-accidental ratio value of 1632.6 (±260.4) is achieved in this heterogeneous design with a photon pair generation rate of 1.94 MHz. We also showcase a wide range of multichannel photon sources with a coincidence-to-accidental ratio consistently around 200. Lastly, we measure heralded single-photons with the lowest gH(2)(0) of 0.1085 ± 0.0014. Our results demonstrate the heterogeneous silicon platform as an ideal platform for the efficient generation of photon pairs and off-chip routing with low losses. It also paves the way for a future hybrid photonic integrated circuit by collecting distinct features from different materials.
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