Temporal-Spectral Multimode Photonics for Quantum Information Science

用于量子信息科学的时谱多模光子学

• 批准号: 1620822
• 负责人: Brian Smith
• 金额: $ 27万
• 依托单位: University of Oregon Eugene
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2016
• 资助国家: 美国
• 起止时间: 2016-09-01 至 2020-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1620822&HistoricalAwards=false
• 关键词: Temporal; Spectral; Multimode; Photonics; Quantum

Visible light is one of the primary ways we get information about the world and the universe, for example using microscopes and telescopes. Light pulses are also used to convey information across the globe at unprecedented rates using the world-wide fiber-optical network that supports the Internet, e-commerce, and even the international financial markets. Furthermore, light can be used to control material systems with applications ranging from laser eye surgery to optical "tweezers" that can trap and manipulate individual molecules. Many of these developments have been enabled by new methods to generate, manipulate and detect light. Today, researchers are developing means to generate, control, and measure the fundamental constituents of light, single photons (individual light "particles"), which obey the laws of quantum physics. This project will explore methods to produce, manipulate and measure individual photons with well-defined pulse characteristics (color and temporal pulse shape) and examine the potential of such single-photon pulses for applications such as secure communications, enhanced precision measurements, and high-capacity computation. The project supports education through training of a diverse group of undergraduate, graduate, and post-doctoral researchers in the field of quantum information science, and provides outreach to local high schools and colleges. This project aims to harness the potential advances in quantum technologies offered by encoding information in the wavelength and temporal shape of individual photons. By exploring methods to produce, manipulate and measure single photons with well-defined pulse characteristics (wavelength and temporal shape), this research program will examine the impact of spectral-temporal single-photon encoding for improved performance in applications such as sensing and quantum communication. To address these goals, the project explores wave-guided optical sources of controllable spectral-temporal entangled photon pairs based upon spontaneous nonlinear optical processes. It examines methods for manipulating single-photon pulses by application of well-defined temporal and spectral phase implemented using electro-optic phase modulators and engineered spectral dispersion in optical fibers. It also investigates methods to characterize the pulse-mode structure of one and two photons by temporal- and spectral-shearing interferometry. This platform for information encoding in the single-photon spectral-temporal shape offers increased information capacity for single photons in integrated-optical systems.

可见光是我们获取有关世界和宇宙信息的主要方式之一，例如使用显微镜和望远镜。 光脉冲还用于利用支持互联网、电子商务甚至国际金融市场的全球光纤网络以前所未有的速度在全球范围内传递信息。此外，光还可用于控制材料系统，其应用范围从激光眼科手术到捕获和操纵单个分子的光学“镊子”。其中许多进展都是通过产生、操纵和检测光的新方法实现的。如今，研究人员正在开发产生、控制和测量光的基本成分、单光子（单个光“粒子”）的方法，这些成分遵循量子物理定律。该项目将探索产生、操纵和测量具有明确脉冲特性（颜色和时间脉冲形状）的单个光子的方法，并检查此类单光子脉冲在安全通信、增强精度测量和高精度测量等应用中的潜力。容量计算。该项目通过培训量子信息科学领域的多元化本科生、研究生和博士后研究人员来支持教育，并向当地高中和大学提供推广服务。该项目旨在利用量子技术的潜在进步，通过对单个光子的波长和时间形状的信息进行编码。通过探索产生、操纵和测量具有明确脉冲特性（波长和时间形状）的单光子的方法，该研究计划将研究光谱时间单光子编码对提高传感和量子通信等应用性能的影响。为了实现这些目标，该项目探索基于自发非线性光学过程的可控谱时纠缠光子对的波导光源。它研究了通过使用电光相位调制器和光纤中工程光谱色散实现的明确定义的时间和光谱相位来操纵单光子脉冲的方法。它还研究了通过时间和光谱剪切干涉测量来表征一个和两个光子的脉冲模式结构的方法。该单光子光谱时间形状信息编码平台为集成光学系统中的单光子提供了更高的信息容量。