{"title":"Towards High-Performance Quantum Light Sources via Optimized Epitaxial Growth","authors":"Run-Ze Liu;Yong-Heng Huo;Armando Rastelli","doi":"10.1109/JSTQE.2025.3581639","DOIUrl":"https://doi.org/10.1109/JSTQE.2025.3581639","url":null,"abstract":"Quantum light sources, particularly those based on solid-state emitters, are indispensable components for quantum information technology. Single quantum dots, as a prominent candidate, are leading the advancements in performance and applications. The epitaxial growth of III-V quantum dots lays the foundation for their optical and spin properties. In this paper, we outline the efforts to achieve highest quality quantum light sources utilizing the molecular beam epitaxy technique, and explore the applications of quantum dots as single photon sources and entangled photon sources. Our work underscores the importance of optimizing epitaxial growth and delves into the potential of arrays of quantum light sources serving as a cornerstone for integrated quantum photonics.","PeriodicalId":13094,"journal":{"name":"IEEE Journal of Selected Topics in Quantum Electronics","volume":"31 5: Quantum Materials and Quantum Devices","pages":"1-9"},"PeriodicalIF":4.3,"publicationDate":"2025-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11045398","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144524389","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Kang She;Guo Sheng;Zhengping Shan;Lin Li;Piaorong Xu;Exian Liu;Jianjun Liu
{"title":"Topological Multi-Mode Photonic Crystal Fiber","authors":"Kang She;Guo Sheng;Zhengping Shan;Lin Li;Piaorong Xu;Exian Liu;Jianjun Liu","doi":"10.1109/JSTQE.2025.3579625","DOIUrl":"https://doi.org/10.1109/JSTQE.2025.3579625","url":null,"abstract":"Topologically-protected optical fiber is thought to significantly reduce the backscattering effects caused by the defects or impurities during the light propagation along the fiber length. The Zak phase is a topological invariant that characterizes the phase change of the wave function over one period in a periodic system. Here, we realize the topological transition of two-dimensional Zak phases by tuning the distribution of scattering columns at the propagation constant kz > 0, and demonstrate the corner states formed by the coupling of edge states as the guiding modes of the fiber. This topological guiding mode exhibits a strong localization with an ultra-small mode-field area of 0.3 μm<sup>2</sup> (or high nonlinearity) and low confinement loss of ∼ 10<sup>−7</sup> dB/km at 1.55 μm. Moreover, the multi-mode nature of this topological fiber is demonstrated by the realization of corner state modes located in the high-order topological bandgap at kz > 0. The high-order corner state modes perfectly match with the results obtained by the mode analysis based on finite element method. This topological multi-mode fiber holds a promise in short-distance backscattering-immune propagation and the nonlinear applications.","PeriodicalId":13094,"journal":{"name":"IEEE Journal of Selected Topics in Quantum Electronics","volume":"31 5: Quantum Materials and Quantum Devices","pages":"1-7"},"PeriodicalIF":4.3,"publicationDate":"2025-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144492331","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Call for Papers: Special issue on Emerging Topics for Nanophotonics, Metamaterials and Plasmonics","authors":"","doi":"10.1109/JSTQE.2025.3560157","DOIUrl":"https://doi.org/10.1109/JSTQE.2025.3560157","url":null,"abstract":"","PeriodicalId":13094,"journal":{"name":"IEEE Journal of Selected Topics in Quantum Electronics","volume":"31 3: AI/ML Integrated Opto-electronics","pages":"1-2"},"PeriodicalIF":4.3,"publicationDate":"2025-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11030578","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144264192","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Call for Papers: Special issue on Self-Injection Locked Lasers and Associated Systems","authors":"","doi":"10.1109/JSTQE.2025.3564798","DOIUrl":"https://doi.org/10.1109/JSTQE.2025.3564798","url":null,"abstract":"","PeriodicalId":13094,"journal":{"name":"IEEE Journal of Selected Topics in Quantum Electronics","volume":"31 3: AI/ML Integrated Opto-electronics","pages":"1-2"},"PeriodicalIF":4.3,"publicationDate":"2025-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11030395","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144264193","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"IEEE Journal of Selected Topics in Quantum Electronics Information for Authors","authors":"","doi":"10.1109/JSTQE.2025.3572752","DOIUrl":"https://doi.org/10.1109/JSTQE.2025.3572752","url":null,"abstract":"","PeriodicalId":13094,"journal":{"name":"IEEE Journal of Selected Topics in Quantum Electronics","volume":"31 3: AI/ML Integrated Opto-electronics","pages":"C3-C3"},"PeriodicalIF":4.3,"publicationDate":"2025-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11030579","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144264174","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"IEEE Journal of Selected Topics in Quantum Electronics Topic Codes and Topics","authors":"","doi":"10.1109/JSTQE.2025.3572754","DOIUrl":"https://doi.org/10.1109/JSTQE.2025.3572754","url":null,"abstract":"","PeriodicalId":13094,"journal":{"name":"IEEE Journal of Selected Topics in Quantum Electronics","volume":"31 3: AI/ML Integrated Opto-electronics","pages":"C4-C4"},"PeriodicalIF":4.3,"publicationDate":"2025-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11030580","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144264194","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Call for Papers: Special issue on Advances in Semiconductor Surface-emitting Lasers: VCSELs and PCSELs","authors":"","doi":"10.1109/JSTQE.2025.3564800","DOIUrl":"https://doi.org/10.1109/JSTQE.2025.3564800","url":null,"abstract":"","PeriodicalId":13094,"journal":{"name":"IEEE Journal of Selected Topics in Quantum Electronics","volume":"31 3: AI/ML Integrated Opto-electronics","pages":"1-2"},"PeriodicalIF":4.3,"publicationDate":"2025-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11030394","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144264261","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Origins and Mitigation of Scattering-Related Propagation Losses in Suspended GaAs Waveguides for Quantum Photonic Integrated Circuits","authors":"Miloš Ljubotina;Marcus Albrechtsen;Zhe Liu;Leonardo Midolo;Andraž Debevc;Marko Topič;Janez Krč","doi":"10.1109/JSTQE.2025.3576388","DOIUrl":"https://doi.org/10.1109/JSTQE.2025.3576388","url":null,"abstract":"Quantum photonic integrated circuits (QPICs) offer a promising path toward scalable quantum technologies. QPICs rely on the integration of many quantum photonic components and interconnecting optical waveguides for generation, manipulation, and detection of single photons. A key challenge in QPICs is the management and minimization of optical losses, which is particularly critical for single-photon applications. In this paper, we investigate optical propagation losses in strip waveguides within suspended gallium arsenide (GaAs) platforms, which can directly host deterministic single-photon sources but suffer high scattering-related losses. We systematically analyze different scattering loss contributions by investigating four key waveguide perturbation types: sidewall roughness, top surface roughness, surface particles, and suspension tethers. Our approach combines rigorous 3D finite-difference time-domain (FDTD) simulations with experimental measurements to decouple and quantify individual contributions to the total propagation loss. We study two suspended GaAs platforms operating at different wavelengths: an established 930 nm platform and an emerging 1300 nm platform in the telecommunication O-band. Based on our findings, we identify the dominant scattering loss mechanisms and propose novel design-time guidelines and concrete strategies to reduce the main loss contributions by factors of 2.5–5. These improvements are crucial for enabling complex QPICs directly within the native platform of the single-photon source, supporting advances in integrated quantum technologies.","PeriodicalId":13094,"journal":{"name":"IEEE Journal of Selected Topics in Quantum Electronics","volume":"31 5: Quantum Materials and Quantum Devices","pages":"1-13"},"PeriodicalIF":4.3,"publicationDate":"2025-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11023197","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144299178","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Editorial Interview:Recent Industrial Applications and Outlook of Optoelectronic Technologies for AI/ML Applications","authors":"Young-Kai Chen","doi":"10.1109/JSTQE.2025.3572652","DOIUrl":"https://doi.org/10.1109/JSTQE.2025.3572652","url":null,"abstract":"","PeriodicalId":13094,"journal":{"name":"IEEE Journal of Selected Topics in Quantum Electronics","volume":"31 3: AI/ML Integrated Opto-electronics","pages":"1-3"},"PeriodicalIF":4.3,"publicationDate":"2025-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11023043","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144206061","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}