EAGER: Collaborative Research: Electrically Pumped Monolithic Bi-photon emitters

EAGER：合作研究：电泵浦单片双光子发射器

• 批准号: 2135088
• 负责人: Dmitri Donetski
• 金额: $ 11.2万
• 依托单位: SUNY at Stony Brook
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2021
• 资助国家: 美国
• 起止时间: 2021-08-01 至 2022-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2135088&HistoricalAwards=false
• 关键词: EAGER; Collaborative; Research; Electrically; Pumped

Integrated photonic systems hold promise to provide a scalable and robust platform for quantum technologies including secure quantum communications, quantum imaging, and quantum sensing. A practical quantum photonic system should monolithically integrate the sources of entangled photons with the rest of the photonic circuitry. Such sources have to be compact, monolithic and electrically pumped. The existing solutions are bulky and require external laser pumping, which puts many practical applications out of reach. We propose a new type of bright compact monolithic source of entangled photons based on the original electrically pumped semiconductor laser heterostructure. We intend to develop the theoretical model, formulate the detailed design concept, and demonstrate efficient generation of photon pairs in the mid-infrared region of spectra. The proposed collaborative efforts will enable a new class of the applications harnessing quantum properties of light. The two PIs will incorporate research results into graduate and undergraduate classes and their ongoing outreach effort to high school students and physics teachers. They will continue their commitment to recruiting under-represented students into STEM careers. The proposed quantum technology research will prepare future scientists and engineers and facilitate implementation of the discoveries of the next quantum revolution into modern technologies.Technical:Strong second order nonlinearity of III-V semiconductors can be used for production of the entangled photon states by means of cavity spontaneous parametric down conversion (SPDC) where the waveguides and other photonic integrated circuit components can be utilized to facilitate phase matching and perform quantum information processing operations. The monolithic integration of the pump laser and SPDC source of mid-infrared photon pairs is needed for practical applications and is the primary goal of our proposal. We will develop new class of laser heterostructures which can yield high power and narrow linewidth pumps and simultaneously enable efficient parametric down conversion of laser light into photon pairs. In standard single core laser waveguides the phase matching conditions for SPDC process are virtually impossible to achieve because of normal dispersion. The original coupled-waveguide design will be used to achieve modal phase matching required for efficient generation of the correlated photon pairs by intra-cavity SPDC. The pump photons will comprise an asymmetric super-mode with a reduced effective refractive index overcoming normal dispersion – a key enabling feature of the proposed design. The type-II intracavity SPDC will produce correlated TE and TM polarized pairs of signal and idler photons. Theoretical description of the generation, propagation, and detection of the non-classical light states in the proposed monolithic quantum photonic structure will be developed.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.

集成光子系统有望为量子技术提供可扩展且强大的平台，包括安全量子通信、量子成像和量子传感。实用的量子光子系统应该将纠缠光子源与其余光子电路集成在一起。必须是紧凑的、单片的和电泵浦的。现有的解决方案体积庞大，需要外部激光泵浦，这使得许多实际应用无法实现。我们打算开发理论模型，制定详细的设计概念，并演示在中红外光谱区域有效生成光子对。所提出的合作努力将实现利用量子的新型应用。两位 PI 将把研究成果纳入研究生和本科生课程，并继续致力于招募代表性不足的学生进入 STEM 职业。为未来的科学家做好准备工程师并促进将下一次量子革命的发现应用到现代技术中。技术：III-V族半导体的强二阶非线性可用于通过腔自发参数下转换（SPDC）产生纠缠光子态，其中波导和其他光子集成电路组件可用于促进相位匹配和执行量子信息处理操作，泵浦激光器和中红外光子对的SPDC源的单片集成是实际应用所需要的，也是该研究的主要目标。我们将开发新型激光异质结构，它可以产生高功率和窄线宽泵浦，同时能够将激光参数下转换为光子对。在标准单芯激光波导中，SPDC 工艺的相位匹配条件实际上是有效的。由于正常色散，原始耦合波导设计将用于实现通过腔内 SPDC 生成相关光子对所需的模态相位匹配，泵浦光子将包含具有不对称超模。降低有效折射率，克服法向色散——II 型腔内 SPDC 将关联 TE 和 TM 偏振对的信号和闲频光子的产生、传播和检测。 -将开发拟议的单片量子光子结构中的经典光态。该奖项反映了 NSF 的法定使命，并通过使用基金会的智力价值和更广泛的影响审查进行评估，被认为值得支持标准。