Ye Su;Xiao Jiang;Fang Xu;Yichen Ye;Zhuang Chen;Simi Lu;Weichen Liu;Yiyuan Xie
{"title":"A Formal Scheme of Fault Injection on Coherent Integrated Photonic Neural Networks","authors":"Ye Su;Xiao Jiang;Fang Xu;Yichen Ye;Zhuang Chen;Simi Lu;Weichen Liu;Yiyuan Xie","doi":"10.1109/JSTQE.2024.3493857","DOIUrl":"https://doi.org/10.1109/JSTQE.2024.3493857","url":null,"abstract":"Based on Mach-Zehnder interferometers (MZIs) coherent integrated photonic neural networks (PNNs) may provide a promising solution for the realization of deep learning with low power consumption, low latency, and ultra-high speed. Adversarial attacks have been widely confirmed to be a serious threat to deep learning. This has led to a large amount of studies in this direction of the electronic domain, including input attacks and inject faults for weights. In this paper, focusing on the phases in the linear operation unit of PNNs, a phase gradient attack (PGA) scheme based on the phase gradient sorting of the MZI-arrays and injecting disturbances along the gradient direction is proposed for the first time. The simulation results indicate that even with weak-intensity PGA, it is almost impossible for PNNs to perform the classification inference. Furthermore, taking into account the effects of fabrication-process variations (FPV) and thermal crosstalk in MZI-arrays that lead to tuning phase deviation in practical application, we systematically analyzed the validity of proposed scheme on the PNNs with phase uncertainties. Specifically, we tested the impact of injecting faults by compressing the number of attacked phase angles to 3, 5, and 7, respectively. The experiment results show that injection attack based using PGA on PNNs trained with Gaussian datasets would reduce classification accuracy to 27.97%, 15.47%, and 8.91% for corresponding cases.","PeriodicalId":13094,"journal":{"name":"IEEE Journal of Selected Topics in Quantum Electronics","volume":"31 3: AI/ML Integrated Opto-electronics","pages":"1-11"},"PeriodicalIF":4.3,"publicationDate":"2024-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142672005","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}
Chang Gao;Fei-Fei Liu;Ze-Qiang Fan;Ling Fan;Ru Zhang;Cong Cao
{"title":"Quantum-Squeezing-Engineered Third-Order Kerr Nonlinearity and Optical High-Order Sideband Comb in a Composite Resonator-Atom System","authors":"Chang Gao;Fei-Fei Liu;Ze-Qiang Fan;Ling Fan;Ru Zhang;Cong Cao","doi":"10.1109/JSTQE.2024.3492261","DOIUrl":"https://doi.org/10.1109/JSTQE.2024.3492261","url":null,"abstract":"Optical microresonators can greatly enhance light-matter interactions and reduce the power necessary to observe nonlinear optical effects. Manipulation and application of atom-resonator-coupling-induced strong nonlinearity have received much attention in recent years. Here, we present a scheme to realize quantum-squeezing-engineered third-order Kerr nonlinearity and optical high-order sideband comb in a composite system consisting of a two-level atom and two directly coupled whispering-gallery-mode optical microresonators. By quantum squeezing one of two coupled resonator modes in this system, the effective resonator-resonator and atom-resonator coupling rates as well as the frequency of the squeezed resonator mode can be effectively controlled. Based on this mechanism, we show that the Kerr nonlinearity of the composite system can be effectively engineered by using the resonator-mode squeezing when the system is monochromatically driven beyond the weak-excitation limit. On the other hand, when the composite system is bichromatically driven, the optical high-order sideband combs formed in the transmission spectra of the system can also be effectively engineered by the resonator-mode squeezing. Therefore, our scheme provides a novel mechanism to control the physical properties of composite resonator-atom systems for various applications, and demonstrates that optical nonlinear effects induced by the atom-resonator coupling can be effectively engineered via quantum squeezing.","PeriodicalId":13094,"journal":{"name":"IEEE Journal of Selected Topics in Quantum Electronics","volume":"31 5: Quantum Materials and Quantum Devices","pages":"1-12"},"PeriodicalIF":4.3,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142736402","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}
Teren Liu;Lukas Seidel;Omar Concepción;Vincent Reboud;Alexei Chelnokov;Giovanni Capellini;Michael Oehme;Detlev Grützmacher;Dan Buca
{"title":"Electrically Pumped GeSn Micro-Ring Lasers","authors":"Teren Liu;Lukas Seidel;Omar Concepción;Vincent Reboud;Alexei Chelnokov;Giovanni Capellini;Michael Oehme;Detlev Grützmacher;Dan Buca","doi":"10.1109/JSTQE.2024.3489712","DOIUrl":"https://doi.org/10.1109/JSTQE.2024.3489712","url":null,"abstract":"Recent progress in the quest for CMOS-integrable GeSn light sources comprises the optically-pumped laser operating at room temperature and the first demonstrations of electrically pumped lasers. In this work, the performance of electrically-pumped double heterostructure GeSn ring laser diodes are evaluated as a function of their geometry and pumping pulse time. In particular, the trade-off between the band structure, i.e., the directness of the GeSn band gap, and the device heat dissipation is discussed in terms of their impact on the emission intensity and threshold current density.","PeriodicalId":13094,"journal":{"name":"IEEE Journal of Selected Topics in Quantum Electronics","volume":"31 1: SiGeSn Infrared Photon. and Quantum Electronics","pages":"1-7"},"PeriodicalIF":4.3,"publicationDate":"2024-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142672095","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":"IEEE Journal of Selected Topics in Quantum Electronics Topic Codes and Topics","authors":"","doi":"10.1109/JSTQE.2024.3470357","DOIUrl":"https://doi.org/10.1109/JSTQE.2024.3470357","url":null,"abstract":"","PeriodicalId":13094,"journal":{"name":"IEEE Journal of Selected Topics in Quantum Electronics","volume":"30 5: Microresonator Frequency Comb Technologies","pages":"C4-C4"},"PeriodicalIF":4.3,"publicationDate":"2024-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10736572","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142524121","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 Publication Information","authors":"","doi":"10.1109/JSTQE.2024.3470351","DOIUrl":"https://doi.org/10.1109/JSTQE.2024.3470351","url":null,"abstract":"","PeriodicalId":13094,"journal":{"name":"IEEE Journal of Selected Topics in Quantum Electronics","volume":"30 5: Microresonator Frequency Comb Technologies","pages":"C2-C2"},"PeriodicalIF":4.3,"publicationDate":"2024-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10736526","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142524148","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.2024.3470355","DOIUrl":"https://doi.org/10.1109/JSTQE.2024.3470355","url":null,"abstract":"","PeriodicalId":13094,"journal":{"name":"IEEE Journal of Selected Topics in Quantum Electronics","volume":"30 5: Microresonator Frequency Comb Technologies","pages":"C3-C3"},"PeriodicalIF":4.3,"publicationDate":"2024-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10736525","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142524120","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 The Future of Microresonator Frequency Comb Technologies","authors":"Lute Maleki","doi":"10.1109/JSTQE.2024.3482528","DOIUrl":"https://doi.org/10.1109/JSTQE.2024.3482528","url":null,"abstract":"","PeriodicalId":13094,"journal":{"name":"IEEE Journal of Selected Topics in Quantum Electronics","volume":"30 5: Microresonator Frequency Comb Technologies","pages":"1-3"},"PeriodicalIF":4.3,"publicationDate":"2024-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10735259","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142518002","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}
Subhashree Seth;Kevin J. Reilly;Fatih F. Ince;Akhil Kalapala;Chhabindra Gautam;Thomas J. Rotter;Alexander Neumann;Sadhvikas Addamane;Bradley Thompson;Ricky Gibson;Weidong Zhou;Ganesh Balakrishnan
{"title":"Thermal Stability of the Dot-in-Well Gain Medium for Photonic Crystal Surface Emitting Lasers","authors":"Subhashree Seth;Kevin J. Reilly;Fatih F. Ince;Akhil Kalapala;Chhabindra Gautam;Thomas J. Rotter;Alexander Neumann;Sadhvikas Addamane;Bradley Thompson;Ricky Gibson;Weidong Zhou;Ganesh Balakrishnan","doi":"10.1109/JSTQE.2024.3486672","DOIUrl":"https://doi.org/10.1109/JSTQE.2024.3486672","url":null,"abstract":"Self-assembled quantum dots (QDs) embedded in InGaAs quantum wells (QWs) are used as active regions for photonic-crystal surface-emitting lasers (PCSELs). An epitaxial regrowth method is developed to fabricate the dot-in-well (DWELL) PCSELs. The epitaxial regrowth starts with the growth of a partial laser structure containing bottom cladding, waveguide, active region, and the photonic crystal (PC) layer. The PC layer is patterned to realize the cavity. Subsequently a top cladding layer is regrown to complete the laser structure. During the regrowth of the top cladding layer, the partial laser structure is subjected to high growth temperatures in excess of 600 °C resulting in an unintentional annealing of the active region. This annealing of the active region can alter the QDs by changing their size resulting in a blue shift in photoluminescence (PL) and narrowing PL emission. This effect results in the misaligning of the gain peak and the cavity resonance, resulting in sub-optimal lasing performance. DWELL active regions are known to have better thermal stability compared to both QDs and QWs and could be an ideal candidate for regrown PCSELs. We successfully demonstrate an optically-pumped epitaxially-regrown DWELL PCSEL with an emission wavelength of 1230 nm operating at room temperature. Furthermore, the DWELL active region shows excellent emission wavelength stability and intensity despite the high temperature regrowth process.","PeriodicalId":13094,"journal":{"name":"IEEE Journal of Selected Topics in Quantum Electronics","volume":"31 2: Pwr. and Effic. Scaling in Semiconductor Lasers","pages":"1-8"},"PeriodicalIF":4.3,"publicationDate":"2024-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142595071","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}
Amanda N. Lemire;Kevin A. Grossklaus;Thomas E. Vandervelde
{"title":"Temperature-Dependent Dielectric Response, Index of Refraction, and Absorption Coefficient of GeSn Films up to 8.4% Sn","authors":"Amanda N. Lemire;Kevin A. Grossklaus;Thomas E. Vandervelde","doi":"10.1109/JSTQE.2024.3486025","DOIUrl":"https://doi.org/10.1109/JSTQE.2024.3486025","url":null,"abstract":"Three Ge\u0000<sub>(1-x)</sub>\u0000Sn\u0000<sub>x</sub>\u0000 films were measured by spectroscopic ellipsometry to extract their optical properties. The Sn contents of the films were 3.6%, 6.5%, and 8.4%, and all were fully strained to a Ge (001) substrate. Optical constants were collected from 0.39–4.116 eV, at temperatures between 78 K and 475 K. Critical point energies in the band structure were red-shifted with increasing Sn content and increasing temperatures. An extra critical point appears between E\u0000<sub>0</sub>\u0000+Δ and E\u0000<sub>1</sub>\u0000 transitions in GeSn samples that does not appear in Ge.","PeriodicalId":13094,"journal":{"name":"IEEE Journal of Selected Topics in Quantum Electronics","volume":"31 1: SiGeSn Infrared Photon. and Quantum Electronics","pages":"1-5"},"PeriodicalIF":4.3,"publicationDate":"2024-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142821295","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}
Paul Crump;Anisuzzaman Boni;Mohamed Elattar;S. K. Khamari;Igor P. Marko;Stephen J. Sweeney;Seval Arslan;Ben King;Md. Jarez Miah;Dominik Martin;Andrea Knigge;Pietro Della Casa;Günther Tränkle
{"title":"Power and Efficiency Scaling of GaAs-Based Edge-Emitting High-Power Diode Lasers","authors":"Paul Crump;Anisuzzaman Boni;Mohamed Elattar;S. K. Khamari;Igor P. Marko;Stephen J. Sweeney;Seval Arslan;Ben King;Md. Jarez Miah;Dominik Martin;Andrea Knigge;Pietro Della Casa;Günther Tränkle","doi":"10.1109/JSTQE.2024.3484669","DOIUrl":"https://doi.org/10.1109/JSTQE.2024.3484669","url":null,"abstract":"Current progress in the scaling of continuous wave optical output power and conversion efficiency of broad-area GaAs-based edge emitters, broad-area lasers (BALs), operating in the 900…1000 nm wavelength range is presented. Device research and engineering efforts have ensured that BALs remain the most efficient of all light sources, so that in the past 10 years, power conversion efficiency at 20 W continuous wave (CW) output power from BA lasers with a 90…100 μm wide stripe has increased 1.5-fold to 57% (via epitaxial layer design developments), whilst peak CW power per single emitter has increased around 3-fold to 70 W (via scaling of device size), with further scaling underway, for example via use of multi-junction designs. However, the peak achievable CW power conversion efficiency and CW specific output power (defined here as peak output power from a 100 μm stripe diode lasers with a single p-n junction) has changed remarkably little, remaining around 70% and 25 W, respectively, for the past decade. Fortunately, research to understand the limits to peak efficiency and specific output power has also shown progress. Specifically, recent studies indicate that spatial non-uniformity in optical field and temperature play a major role in limiting both power and conversion efficiency. Technological efforts motivated by these discoveries to flatten lateral and longitudinal temperature profiles have successfully increased both power and efficiency. In addition, epitaxial layer designs with very high modal gain successfully reduce threshold current and increase slope at 25 °C to values comparable to those observed at 200 K, offering a path toward the 80% conversion efficiency range currently seen only at these cryogenic temperatures. Overall, whilst operating efficiency and power continue to scale rapidly, a technological path for increased specific power and peak efficiency is also emerging.","PeriodicalId":13094,"journal":{"name":"IEEE Journal of Selected Topics in Quantum Electronics","volume":"31 2: Pwr. and Effic. Scaling in Semiconductor Lasers","pages":"1-12"},"PeriodicalIF":4.3,"publicationDate":"2024-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142587529","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}