EAGER: Spatial-Mode Entanglement and Spatial-Mode-Selective Quantum Frequency Conversion in Few-Mode Fibers

EAGER：少模光纤中的空间模式纠缠和空间模式选择性量子频率转换

• 批准号: 1937860
• 负责人: Michael Vasilyev
• 金额: $ 13万
• 依托单位: University of Texas at Arlington
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2019
• 资助国家: 美国
• 起止时间: 2019-08-15 至 2021-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1937860&HistoricalAwards=false
• 关键词: EAGER; Spatial; Mode; Entanglement; Selective

Optical fiber loss limits the rate of data transmission of long-distance quantum communication links, which are essential for secure information exchange and future quantum cloud computing. The only way to scale up the quantum communication rate is by increasing the number of degrees of freedom (modes) used by the transmitted photons. While polarization and frequency degrees of freedom have already been extensively explored, encoding the quantum information into the spatial modes (beam profiles) propagating in low-loss few-mode fibers has received little attention so far. This project aims to change this situation and open the spatial degrees of freedom for quantum communications by implementing encoders and decoders of spatial quantum information directly inside the fiber. Opening up a large number of spatial degrees of freedom will dramatically increase quantum communication rates and enable many future long-distance quantum networking applications. In addition, the developed spatial-mode selection technology could find its use also in classical telecommunications, e.g., in mode demultiplexing or in transfer of information between spatial and frequency modes. This project will train two students in nonlinear optics, quantum information processing, and optical communications. UTA is a minority-serving institution, and we will stimulate the interest in photonics from undergraduates and K-12 students via Open Lab events and visually-appealing demos.Technical descriptionThe goal of this exploratory project is to realize two key functions necessary for transmitting and receiving quantum information over spatially-multimode or few-mode optical fibers - the spatially-entangled photon-pair generation and spatial-mode-selective quantum frequency conversion - directly in a few-mode fiber (FMF) by means of inter-modal four-wave mixing. By employing pumps in two FMF modes, we will generate a signal-idler photon pair in these two orthogonal spatial modes. The FMF phase-matching conditions will enable two simultaneous FWM processes driven by two-wavelength pumps in each of the modes, which can be adapted to realize both functions mentioned above. Implementation of this spatial-quantum-information-processing functionality directly in FMF, unlike the previous approaches relying on second-order nonlinearity in exotic multimode waveguides, eliminates any coupling loss and crosstalk and utilizes the FMF medium that is already available commercially and is also widely customizable by a number of vendors and research institutions. This work could have a transformative impact on high-capacity quantum communications by enabling spatially-multimode-fiber-based quantum links.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

光纤损耗限制了长距离量子通信链路的数据传输速率，这对于安全的信息交换和未来的量子云计算至关重要。提高量子通信速率的唯一方法是增加传输光子使用的自由度（模式）的数量。虽然极化和频率自由度已经得到了广泛的探索，但将量子信息编码到低损耗少模光纤中传播的空间模式（光束剖面）中却很少受到关注。本项目旨在改变这种状况，通过直接在光纤内部实现空间量子信息的编码器和解码器，打开量子通信的空间自由度。开放大量的空间自由度将大大提高量子通信速率，并使许多未来的远程量子网络应用成为可能。此外，所开发的空间模式选择技术也可用于传统电信，例如模式解复用或空间模式和频率模式之间的信息传输。本项目将培养两名非线性光学、量子信息处理和光通信方面的学生。UTA是一个为少数民族服务的机构，我们将通过开放实验室活动和视觉上吸引人的演示来激发本科生和K-12学生对光子学的兴趣。技术描述本探索性项目的目标是通过模间四波混频，直接在少模光纤（FMF）中实现在空间多模或少模光纤上传输和接收量子信息所必需的两个关键功能——空间纠缠光子对产生和空间模式选择性量子频率转换。通过在两个FMF模式中使用泵浦，我们将在这两个正交的空间模式中产生一个信号空闲光子对。FMF相位匹配条件将使在每个模式下由两个波长泵浦驱动的两个同步FWM过程成为可能，可以适应实现上述两个功能。直接在FMF中实现这种空间量子信息处理功能，不像以前的方法依赖于奇异多模波导中的二阶非线性，消除了任何耦合损耗和串扰，并利用了FMF介质，这种介质已经在商业上可用，也被许多供应商和研究机构广泛定制。通过实现基于空间多模光纤的量子链路，这项工作可能对高容量量子通信产生变革性影响。该奖项反映了美国国家科学基金会的法定使命，并通过使用基金会的知识价值和更广泛的影响审查标准进行评估，被认为值得支持。

项目成果

Mode-Selective Frequency Conversion in a Three-Mode Fiber

三模光纤中的模式选择频率转换

• DOI: 10.1364/cleo_si.2020.sm3p.3
• 发表时间: 2020
• 期刊: CLEO 2020 Conference Proceedings
• 作者: Shamsshooli, Afshin;Guo, Cheng;Parmigiani, Francesca;Li, Xiaoying;Vasilyev, Michael
• 通讯作者: Vasilyev, Michael

Progress Toward Spatially-Entangled Photon-Pair Generation in a Few-Mode Fiber

少模光纤中空间纠缠光子对生成的进展

• DOI: 10.1109/lpt.2021.3089537
• 发表时间: 2021
• 期刊: IEEE Photonics Technology Letters
• 影响因子: 2.6
• 作者: Shamsshooli, Afshin;Guo, Cheng;Parmigiani, Francesca;Li, Xiaoying;Vasilyev, Michael
• 通讯作者: Vasilyev, Michael

Growing Quantum Communication Capacity with Spatial Modes of Optical Fiber

利用光纤空间模式提高量子通信容量

• 发表时间: 2021
• 作者: M. Vasilyev

Reconfigurable mode-selective frequency conversion in a three-mode fiber

三模光纤中的可重构模式选择频率转换

• DOI: 10.1109/ipc47351.2020.9252379
• 发表时间: 2020
• 期刊: IEEE Photonics Conference 2020
• 作者: Shamsshooli, Afshin;Guo, Cheng;Vasilyev, Michael;Parmigiani, Francesca;Li, Xiaoying
• 通讯作者: Li, Xiaoying

Reconfigurable Spatial-Mode-Selective Frequency Conversion in a Three-Mode Fiber

三模光纤中的可重构空间模式选择性频率转换

• DOI: 10.1109/lpt.2021.3075688
• 发表时间: 2021
• 期刊: IEEE Photonics Technology Letters
• 影响因子: 2.6
• 作者: Shamsshooli, Afshin;Guo, Cheng;Parmigiani, Francesca;Li, Xiaoying;Vasilyev, Michael
• 通讯作者: Vasilyev, Michael