Single-photon detection and cryogenic reconfigurability in lithium niobate nanophotonic circuits.
Single-photon detection and cryogenic reconfigurability in lithium niobate nanophotonic circuits.
复制标题
单光子探测和锂酸盐纳米光子电路的低温可重构性。
DOI：
10.1038/s41467-021-27205-8
复制
发表时间：
2021-11-25
影响因子：
16.6
通讯作者：
Lenzini F
中科院分区：
文献类型：
--
作者：
Lomonte E;Wolff MA;Beutel F;Ferrari S;Schuck C;Pernice WHP;Lenzini F
二氯乙醇锂在绝缘子（LNOI）是一个有前途的量子光子技术的有前途的平台，因为其高二阶非线性和紧凑型波导足迹很重要。在低温温度下与超导纳米线单光子探测器（SNSPDS）的整合为实现可扩展的光子在这里，我们在低损失（0.2 dB/cm）的LNOI波导网络中将这两个关键成分的整合在这里进行了量子。电气可调的马赫·泽尔德干涉仪和两个波导集成的SNSPD在其输出中显示我们系统的静态重新配置。 12小时以及最高1 GHz的高速调制。我们的结果为在LNOI平台上实现复杂的量子光子设备提供了蓝图。
众所周知，在低温环境中，纳米电导的单光子检测器和可重新配置的电路的结合很难到达这里。 1 GHz。
Lithium-Niobate-On-Insulator (LNOI) is emerging as a promising platform for integrated quantum photonic technologies because of its high second-order nonlinearity and compact waveguide footprint. Importantly, LNOI allows for creating electro-optically reconfigurable circuits, which can be efficiently operated at cryogenic temperature. Their integration with superconducting nanowire single-photon detectors (SNSPDs) paves the way for realizing scalable photonic devices for active manipulation and detection of quantum states of light. Here we demonstrate integration of these two key components in a low loss (0.2 dB/cm) LNOI waveguide network. As an experimental showcase of our technology, we demonstrate the combined operation of an electrically tunable Mach-Zehnder interferometer and two waveguide-integrated SNSPDs at its outputs. We show static reconfigurability of our system with a bias-drift-free operation over a time of 12 hours, as well as high-speed modulation at a frequency up to 1 GHz. Our results provide blueprints for implementing complex quantum photonic devices on the LNOI platform. The combination of superconducting nanowire single photon detectors and electro-optically reconfigurable circuits in a cryogenic environment is notoriously difficult to reach. Here, the authors realise this on a Lithium-Niobate-On-Insulator platform, reaching high speed modulation at a frequency up to 1 GHz.
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影响因子：
4.6
作者：
Kahl O;Ferrari S;Kovalyuk V;Goltsman GN;Korneev A;Pernice WHP
通讯作者：
Pernice WHP
影响因子：
10.4
作者：
Lu, Juanjuan;Li, Ming;Tang, Hong X.
通讯作者：
Tang, Hong X.
影响因子：
10.4
作者：
Lu, Juanjuan;Surya, Joshua B.;Tang, Hong X.
通讯作者：
Tang, Hong X.
影响因子：
4
作者：
Al Sayem, Ayed;Cheng, Risheng;Tang, Hong X.
通讯作者：
Tang, Hong X.
影响因子：
3.8
作者：
Lomonte, Emma;Lenzini, Francesco;Pernice, Wolfram H. P.
通讯作者：
Pernice, Wolfram H. P.