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可靠的平台，包括安全量子通信，量子成像和量子灵敏度。实用的量子光子系统应单一地将纠缠照片的来源与光子电路的其余部分整合在一起。这样的来源必须是紧凑的，整体的和电泵的。现有的解决方案是笨重的，需要外部激光泵送，这使许多实际应用无法触及。我们提出了一种基于原始的电泵送半导体激光异质结构的新型的纠缠照片的新型紧凑型整体源。我们打算开发理论模型，制定详细的设计概念，并在光谱的中红外区域有效地生成光子对。拟议的协作工作将使一类新的应用程序利用光的量子性能。这两个PI将将研究结果纳入研究生和本科课程，以及他们对高中生和物理老师的持续推广工作。他们将继续承诺招募代表性不足的学生从事STEM职业。 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 sponsorous parametric down conversion (SPDC) where the waveguides and other photonic integrated circuit components can be utilized to facilitate phase matching and执行量子信息处理操作。实用应用需要泵激光器和SPDC源的整体整合，这是我们建议的主要目标。我们将开发新的激光异质结构，它们可以产生高功率和狭窄的线宽泵，并简单地使激光光对光子对的有效参数降低转换为光子对。在标准的单核激光波中，由于正常的分散，几乎无法实现SPDC过程的相位匹配条件。原始的耦合波导设计将用于实现通过腔内SPDC有效生成相关光子对所需的模态相匹配。泵的照片将完成一个不对称的超级模式，并具有降低的有效折射率克服正常分散体 - 这是该设计设计的关键启示功能。 II型腔内SPDC将产生相关的TE和TM偏振对信号和惰轮照片。将开发对拟议的整体量子光子结构中非古典光状态的一代，传播和检测的理论描述。该奖项反映了NSF的法定任务，并被认为是通过基金会的智力优点和更广泛影响的评估标准通过评估而被视为珍贵的支持。