期刊
OPTICS EXPRESS
卷 27, 期 21, 页码 30773-30787出版社
OPTICAL SOC AMER
DOI: 10.1364/OE.27.030773
关键词
-
类别
资金
- National Natural Science Foundation of China [61671090, 61372037]
- State Key Laboratory of Information Photonics and Optical Communications (Beijing University of Posts and Telecommunications) [IPOC2017ZZ04]
- National Science Foundation [ACQUIRE 1741707, 1824568, 1810506, 1829071]
- University of California National Laboratory research program [LFRP-17-477237]
- Office of Naval Research [N00014-14-1-0041]
- Lawrence Livermore National Laboratory [B622827]
- Direct For Education and Human Resources [1829071] Funding Source: National Science Foundation
- Directorate For Engineering [1810506] Funding Source: National Science Foundation
- Division Of Graduate Education [1829071] Funding Source: National Science Foundation
- Div Of Electrical, Commun & Cyber Sys [1810506] Funding Source: National Science Foundation
High-efficient and high-purity photon sources are highly desired for quantum information processing. We report the design of a chip-scale hybrid SixNy and thin film periodically-poled lithium niobate waveguide for generating high-purity type-II spontaneous parametric down-conversion (SPDC) photons in the telecommunication band. The modeled second harmonic generation efficiency of 225% W-1 . cm(-2) is obtained at 1560nm. Joint spectral analysis is performed to estimate the frequency correlation of SPDC photons, yielding intrinsic purity with up to 95.17%. The generation rate of these high-purity photon pairs is estimated to be 2.87 x 10(7) pairs/s/mW within the bandwidth of SPDC. Our chip-scale hybrid waveguide design has the potential for large-scale on-chip quantum information processing and integrated photon-efficient quantum key distribution through highdimensional time-energy encoding. (C) 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据