Laser & Photonics Reviews最新文献

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Handheld Embedded Laser‐Diode Illumination Optoacoustic System for Real‐Time 3D Angiography of Deep Tissues 用于深层组织实时三维血管造影的手持式嵌入式激光二极管照明光声系统
IF 11 1区 物理与天体物理
Laser & Photonics Reviews Pub Date : 2025-07-28 DOI: 10.1002/lpor.202501006
Xiang Liu, Federico Villani, Isaac Esteban, Xuyang Chang, Baoyuan Zhang, Andrea Cossettini, Xosé Luís Deán‐Ben, Luca Benini, Daniel Razansky
{"title":"Handheld Embedded Laser‐Diode Illumination Optoacoustic System for Real‐Time 3D Angiography of Deep Tissues","authors":"Xiang Liu, Federico Villani, Isaac Esteban, Xuyang Chang, Baoyuan Zhang, Andrea Cossettini, Xosé Luís Deán‐Ben, Luca Benini, Daniel Razansky","doi":"10.1002/lpor.202501006","DOIUrl":"https://doi.org/10.1002/lpor.202501006","url":null,"abstract":"The clinical adoption of optoacoustic imaging is currently being impeded by the bulky design and high cost of traditional systems based on solid‐state lasers. We introduce a cost‐effective, high‐performance Handheld Embedded Laser‐diode Illumination Optoacoustic System (HELIOS) based on a spherical array probe incorporating a compact illumination source located in close proximity to the imaged object. High performance drivers have been designed to produce 1.8 mJ energy pulses at 915 nm wavelength, sufficient for rendering entire ≈1 cm<jats:sup>3</jats:sup> image volumes with high spatial and temporal resolution. The fast imaging performance is further facilitated by high‐speed acquisition electronics capable of simultaneous sampling of all 256 transducer channels, thus enabling volumetric imaging at up to 400 Hz frame rate corresponding to pulse repetition frequency of the laser diodes. HELIOS attains image quality and performance metrics on par with those achieved with solid state laser sources. We then demonstrate real‐time volumetric angiography of human fingers and palm in a freehand mode, perform large‐scale volumetric compounding of vascular structures from the time‐lapse 3D data, and visualize vessel perfusion and pulsation with the system. The work represents a major leap toward the translation of optoacoustics into point‐of‐care diagnostics and enabling its dissemination in resource‐limited settings.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"12 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144715369","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Advances in On‐Chip Polarization Multiplexing Devices: From Traditional Designs to Inverse Design and Hybrid Multiplexing 片上偏振复用器件的研究进展:从传统设计到反设计和混合复用
IF 11 1区 物理与天体物理
Laser & Photonics Reviews Pub Date : 2025-07-28 DOI: 10.1002/lpor.202500643
Maoqing Guo, Lvyi Zhong, Shilong Li, Yuhang Chen, Jie Li, Jitao Li, Dingyu Yang
{"title":"Advances in On‐Chip Polarization Multiplexing Devices: From Traditional Designs to Inverse Design and Hybrid Multiplexing","authors":"Maoqing Guo, Lvyi Zhong, Shilong Li, Yuhang Chen, Jie Li, Jitao Li, Dingyu Yang","doi":"10.1002/lpor.202500643","DOIUrl":"https://doi.org/10.1002/lpor.202500643","url":null,"abstract":"Polarization multiplexing technology achieves double data transmission capacity in photonic integrated devices by utilizing different polarization states of light. The key function of polarization multiplexing devices is to separate and convert the polarization states of light waves using devices such as polarization beam splitters (PBS) and polarization rotators (PR). This paper reviews various design structures for polarization multiplexers, such as directional coupler (DC) structures, multimode interference (MMI) structures, Y‐branch structures, and auxiliary structures like photonic crystals (PC), hybrid plasmonic waveguides (HPW), subwavelength gratings (SWG), and slot waveguides, as well as the applications of various materials, such as silicon, silicon nitride, lithium niobate, and compounds. The paper emphasizes the application of inverse design techniques in polarization multiplexer devices, particularly in improving the design efficiency and performance of devices through the combination of deep learning and optimization algorithms. With the continuous advancement of technology, polarization multiplexing devices will become more compact and efficient, and through hybrid multiplexing technology, combined with wavelength division multiplexing (WDM) and mode division multiplexing (MDM), communication capacity will be significantly increased. Although current devices still face challenges in terms of performance and manufacturing processes, they have great application potential in the future in optical interconnection chips, quantum computing, and biological detection.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"5 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144715371","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Dispersion Design Method of Metasurface Based on Semi‐Inverse Phase Matching 基于半逆相位匹配的超表面色散设计方法
IF 11 1区 物理与天体物理
Laser & Photonics Reviews Pub Date : 2025-07-28 DOI: 10.1002/lpor.202500222
Zhuang Ma, Wei Yan, Min Qiu
{"title":"Dispersion Design Method of Metasurface Based on Semi‐Inverse Phase Matching","authors":"Zhuang Ma, Wei Yan, Min Qiu","doi":"10.1002/lpor.202500222","DOIUrl":"https://doi.org/10.1002/lpor.202500222","url":null,"abstract":"Simultaneously modulating the phase and dispersion of the light field is one of the specific functions of metasurfaces. Classic dispersion design methods for metasurfaces, including forward and inverse methods, cannot simultaneously achieve high interpretability from theoretical equations and optimizability via feedback of the output field. In this article, a semi‐inverse design method based on phase matching is proposed. This method achieves dispersion design by matching theoretical phase and phase responses of meta‐atoms, while iteratively adjusting the physical parameters in theoretical equations based on the far‐field energy distribution. The working parameters of the metasurface and the combination of meta‐atoms (instead of the shapes of the meta‐atoms), are optimized iteratively to make the output field match the design. Using the proposed method, three broadband devices are presented. The first is an achromatic metalens working in 850–1800 nm, achieving high efficiency greater than 70% within 1100–1800 nm. The second is a spectral router working in 850–1550 nm with an average efficiency of 75%. The third is a metalens with abnormal dispersion working in 1200–1800 nm with ≈80% diffraction efficiency. The proposed method is versatile and can be applied in the field of applied optics such as achromatic imaging and spectral routing.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"129 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144715370","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Stepwise Unlock Full‐Spectrum Emission with Abnormal Anti‐Thermal Quenching in Indium‐Based Metal Halides by Tailoring Their Crystal Structure Engineering 通过调整其晶体结构工程,逐步解锁铟基金属卤化物中具有异常抗热猝灭的全光谱发射
IF 11 1区 物理与天体物理
Laser & Photonics Reviews Pub Date : 2025-07-28 DOI: 10.1002/lpor.202501270
Xiaokang Li, Hui Peng, Ou Xu, Wenjie Huang, Linghang Kong, Qilin Wei, Zhentao Du, Wenchao Yang, Bingsuo Zou
{"title":"Stepwise Unlock Full‐Spectrum Emission with Abnormal Anti‐Thermal Quenching in Indium‐Based Metal Halides by Tailoring Their Crystal Structure Engineering","authors":"Xiaokang Li, Hui Peng, Ou Xu, Wenjie Huang, Linghang Kong, Qilin Wei, Zhentao Du, Wenchao Yang, Bingsuo Zou","doi":"10.1002/lpor.202501270","DOIUrl":"https://doi.org/10.1002/lpor.202501270","url":null,"abstract":"Lead‐free metal halides with tunable optical properties have emerged as a class of optoelectronic materials with great application potential. The optical properties of metal halides are closely related to their crystal structures, and the diversity of crystal structures is a key factor in achieving efficient tunable emission. Herein, four different Sb<jats:sup>3+</jats:sup>‐doped In<jats:sup>3+</jats:sup>‐based metal halides of 3D Cs<jats:sub>2</jats:sub>KInCl<jats:sub>6</jats:sub>:Sb<jats:sup>3+</jats:sup>, 1D (DFEA)<jats:sub>2</jats:sub>KInCl<jats:sub>6</jats:sub>:Sb<jats:sup>3+</jats:sup> and (DFEA)<jats:sub>2</jats:sub>(NH<jats:sub>4</jats:sub>)InCl<jats:sub>6</jats:sub>:Sb<jats:sup>3+</jats:sup>, and 0D (DFEA)<jats:sub>3</jats:sub>InCl<jats:sub>6</jats:sub>:Sb<jats:sup>3+</jats:sup> (DFEA = 2, 2‐difluoroethylamine) are reported, all of which exhibit different crystal structures, resulting in efficient tunable emission bands shift from 495 to 605 nm. It is found that the larger [SbCl<jats:sub>6</jats:sub>]<jats:sup>3−</jats:sup> distortion is the reason for the redshift of the emission band, which allows to stepwise unlock the full‐spectrum emission with ultra‐high luminescence efficiency. Compared all‐inorganic Cs<jats:sub>2</jats:sub>KInCl<jats:sub>6</jats:sub>:Sb<jats:sup>3+</jats:sup>, the other three Sb<jats:sup>3+</jats:sup>‐doped hybrid In<jats:sup>3+</jats:sup>‐based metal halides exhibit abnormal anti‐thermal quenching behavior, which should be attributed to the participation of shallow trapped states caused by the structural defects. The tunable emission characteristics of Sb<jats:sup>3+</jats:sup>‐doped metal halides make them show great application potential in solid‐state lighting, optical anti‐counterfeiting, and information encryption.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"92 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144715367","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Higher Speed Multispectral Imaging Using a Thin Liquid Crystal Layer in Metal Cavity and Artificial Intelligence Reconstruction Algorithm 金属腔内薄液晶层高速多光谱成像及人工智能重建算法
IF 11 1区 物理与天体物理
Laser & Photonics Reviews Pub Date : 2025-07-26 DOI: 10.1002/lpor.202500547
Doron Pasha, Majd Abu Aisheh, Isaac Y. August, Ibrahim Abdulhalim
{"title":"Higher Speed Multispectral Imaging Using a Thin Liquid Crystal Layer in Metal Cavity and Artificial Intelligence Reconstruction Algorithm","authors":"Doron Pasha, Majd Abu Aisheh, Isaac Y. August, Ibrahim Abdulhalim","doi":"10.1002/lpor.202500547","DOIUrl":"https://doi.org/10.1002/lpor.202500547","url":null,"abstract":"A concept and demonstration of a fast multispectral imager operating across the visible (Vis) and near‐infrared (NIR) ranges is presented. This system utilizes a specially designed LC tunable metal‐insulator‐metal (MIM) cavity combined with a passive multiband pass filter (MBF). The integration of the MBF with the MIM device, along with advanced artificial intelligence algorithms, provides several key benefits: i) lower production cost, ii) dual functionality of the metal layers as reflectors and electrodes, iii) a richer spectrum exhibiting a larger number of peaks and valleys at reduced thickness, enabling faster switching and robust spectrum reconstruction, iv) a broader operational spectrum, v) higher light throughput as only one polarizer is needed, vi) reduced tolerance requirements on the contrast of the spectrum due to the use of artificial neural nets reconstruction algorithm, and vii) lower operation voltage. The MIM tunable device exhibits as fast as 50 µs stabilization time with an average value of 250 µs, and a total acquisition time of &lt;5 ms, highlighting the potential of this technology for high‐rate multispectral video. The system's applicability is demonstrated in food monitoring, showcasing its potential for real‐time efficient spectral analysis.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"118 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144710749","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Timing‐Injection Locking in a Self‐Starting Mamyshev Oscillator Induced by the Dissipative Faraday Instability 耗散法拉第不稳定性诱导的自启动马米舍夫振荡器的定时注入锁定
IF 11 1区 物理与天体物理
Laser & Photonics Reviews Pub Date : 2025-07-26 DOI: 10.1002/lpor.202500742
Changqing Li, Ran Xia, Yutai Zhao, Yifang Li, Jia Liu, Christophe Finot, Xiahui Tang, Gang Xu
{"title":"Timing‐Injection Locking in a Self‐Starting Mamyshev Oscillator Induced by the Dissipative Faraday Instability","authors":"Changqing Li, Ran Xia, Yutai Zhao, Yifang Li, Jia Liu, Christophe Finot, Xiahui Tang, Gang Xu","doi":"10.1002/lpor.202500742","DOIUrl":"https://doi.org/10.1002/lpor.202500742","url":null,"abstract":"Mamyshev oscillators (MOs), a novel class of passively mode‐locked fiber lasers, serve as an excellent platform to explore complex nonlinear dynamics, ranging from localized structures to chaos. Despite their versatility, achieving self‐starting mode‐locking remains a significant challenge. In this study, the critical role of the dissipative Faraday instability (DFI) in facilitating the self‐starting process of Mos is unveiled, where the DFI triggers the symmetry breaking of the homogeneous solution to overcome the initiation barriers. A panoramic view of several distinct operational regimes with distinct DFI patterns is provided, namely the non‐self‐starting states, the irregular patterns, the harmonic mode locking regime, the stable single pulse and the stable multi pulse regime. For the latest case, the origins of randomness in these pulse sequences through analyzing the causality between the timing of the random pulses and the initial seeding conditions are uncovered. Building upon these findings, the novel time‐injection locking technique is proposed to customize the temporal locations of the pulses as well as the pattern timing in MOs, thus demonstrating its potential for applications in all‐optical data storage and tunable ultrashort pulse sources.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"12 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144710750","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Correction to “Coherence Awareness in Diffractive Neural Networks” 对“衍射神经网络中的相干意识”的修正
IF 11 1区 物理与天体物理
Laser & Photonics Reviews Pub Date : 2025-07-26 DOI: 10.1002/lpor.70257
{"title":"Correction to “Coherence Awareness in Diffractive Neural Networks”","authors":"","doi":"10.1002/lpor.70257","DOIUrl":"https://doi.org/10.1002/lpor.70257","url":null,"abstract":"","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"11 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144710682","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Discovery of the Delocalized Nature of the High‐Energy Excited‐State 4f Electron of Eu(III): Spectroscopic Evidence and Applications Eu高能激发态4f电子离域性质的发现(III):光谱证据及其应用
IF 11 1区 物理与天体物理
Laser & Photonics Reviews Pub Date : 2025-07-26 DOI: 10.1002/lpor.202501029
Fanju Meng, Yu Zha, Fangxue Chen, Qiudong Duan, Junxiao Wu, Jin Han, Yugeng Wen, Jianbei Qiu
{"title":"Discovery of the Delocalized Nature of the High‐Energy Excited‐State 4f Electron of Eu(III): Spectroscopic Evidence and Applications","authors":"Fanju Meng, Yu Zha, Fangxue Chen, Qiudong Duan, Junxiao Wu, Jin Han, Yugeng Wen, Jianbei Qiu","doi":"10.1002/lpor.202501029","DOIUrl":"https://doi.org/10.1002/lpor.202501029","url":null,"abstract":"Red photoemissions of Eu<jats:sup>3+</jats:sup> can be normally found from the lowest excited state of <jats:sup>5</jats:sup>D<jats:sub>0</jats:sub> level, whereas examples of luminescence from high‐energy excited states such as <jats:sup>5</jats:sup>D<jats:sub>2</jats:sub> and <jats:sup>5</jats:sup>D<jats:sub>3</jats:sub> levels are very scarce; the origins of which are still unclear. This study shows, by detailed spectroscopic measurements in CsBr<jats:sub>0.9</jats:sub>Cl<jats:sub>0.1</jats:sub>:Eu<jats:sup>2+</jats:sup>, that exciton lifetime can be controlled by four orders of magnitude between Eu<jats:sup>3+</jats:sup> and Eu<jats:sup>2+</jats:sup> ions, with 35 ms deriving from parity‐forbidden <jats:sup>5</jats:sup>D<jats:sub>3</jats:sub>→<jats:sup>7</jats:sup>F<jats:sub>j</jats:sub> (j = 1–5) transitions of Eu<jats:sup>3+</jats:sup> to 639 ns belonging to the dipole‐allowed 5d→4f transition of Eu<jats:sup>2+</jats:sup>. The excited‐state lifetime of Eu<jats:sup>3+</jats:sup> can be kept for two weeks at room temperature, while maintaining high photoluminescence quantum yield of 93.4% and good thermal stability (85%@433 K). Steady‐state and transient‐state spectroscopies reveal blue emissions from the high‐energy <jats:sup>5</jats:sup>D<jats:sub>3</jats:sub> excited state of Eu<jats:sup>3+</jats:sup> are strongly limited and quenched by oxygen molecules. Electron paramagnetic resonance spectroscopy and theoretical calculations confirm the 4f electrons are highly delocalized due to significantly reduced electron and hole wavefunction overlap, leading to singlet‐oxygen generation via electron transfer. These findings advance the fundamental understanding of the missing luminescence from higher excited states of Eu<jats:sup>3+</jats:sup>, enabling multifunctional applications such as emission‐lifetime‐based oxygen‐sensing and X‐ray imaging.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"2 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144710748","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Vectorial Generalized Snell's Law‐Enabled Differentiable Ray Tracing for Large‐Aperture Visible Achromatic Hybrid Meta‐Optics 矢量广义Snell定律支持的大孔径可见光消色差混合元光学的可微光线追踪
IF 11 1区 物理与天体物理
Laser & Photonics Reviews Pub Date : 2025-07-26 DOI: 10.1002/lpor.202500448
Qiangbo Zhang, Peicheng Lin, Zeqing Yu, Changwei Zhang, Yiyang Liu, Mengguang Wang, Qingbin Fan, Chang Wang, Ting Xu, Zhenrong Zheng
{"title":"Vectorial Generalized Snell's Law‐Enabled Differentiable Ray Tracing for Large‐Aperture Visible Achromatic Hybrid Meta‐Optics","authors":"Qiangbo Zhang, Peicheng Lin, Zeqing Yu, Changwei Zhang, Yiyang Liu, Mengguang Wang, Qingbin Fan, Chang Wang, Ting Xu, Zhenrong Zheng","doi":"10.1002/lpor.202500448","DOIUrl":"https://doi.org/10.1002/lpor.202500448","url":null,"abstract":"Single metalenses are limited by their physical constraints, precluding themselves from achieving high numerical aperture across a wide visible spectral band in large‐aperture applications. A hybrid system that integrates a metalens with a refractive lens can address this issue, yet previous designs lacked sufficient flexibility. Here, by deriving the vectorial generalized Snell's law, a new paradigm is introduced for the hybrid metalens design based on differentiable ray tracing. Through joint optimization of the phase distribution of the metalens and refractive lens parameters, the system achieves achromatic performance within the broad spectral range of 420–680 nm, with an 8 mm aperture and a numerical aperture (NA) of 0.32. Compared to a single aspheric refractive lens, the design reduces chromatic aberration by 83% and provides high‐quality full‐color imaging. This approach bridges the gap between meta‐optics and refractive optics, advancing the development of metalenses in the realms of optical design and computational imaging.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"92 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144710756","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
126 Tbits/s Massive Parallel Physical Random Bits Generator with Broadband Chaos of Integrated AlGaAs Micro‐Resonator 集成AlGaAs微谐振器的宽带混沌126tbits /s大规模并行物理随机比特发生器
IF 11 1区 物理与天体物理
Laser & Photonics Reviews Pub Date : 2025-07-24 DOI: 10.1002/lpor.202500671
Lehan Zhao, Weiqiang Xie, Mingjie Wu, Yanlan Xiao, Zihan Shen, Jin Deng, Haitang Li, Zhengmao Wu, Junbo Yang, Wenqi Wei, Zihao Wang, Ting Wang, Jianjun Zhang, Yikai Su, Heng Zhou, Jiagui Wu
{"title":"126 Tbits/s Massive Parallel Physical Random Bits Generator with Broadband Chaos of Integrated AlGaAs Micro‐Resonator","authors":"Lehan Zhao, Weiqiang Xie, Mingjie Wu, Yanlan Xiao, Zihan Shen, Jin Deng, Haitang Li, Zhengmao Wu, Junbo Yang, Wenqi Wei, Zihao Wang, Ting Wang, Jianjun Zhang, Yikai Su, Heng Zhou, Jiagui Wu","doi":"10.1002/lpor.202500671","DOIUrl":"https://doi.org/10.1002/lpor.202500671","url":null,"abstract":"This study presents an ultra‐high‐speed physical random bits (PRBs) generator based on an integrated AlGaAs micro‐resonator. The AlGaAs micro‐resonator generates hundreds of parallel comb teeth, which span a broad wavelength range from 1300 to 1740 nm with a 420 GHz free spectral range (FSR). These teeth exhibit a flat spectral profile and cover over a 10 GHz radio frequency range with chaotic dynamics, attributed to the high nonlinearity of AlGaAs, being nearly an order of magnitude broader than that of Si<jats:sub>3</jats:sub>N<jats:sub>4</jats:sub>. The teeth chaos oscillations on the sub‐nanosecond scale, with a permutation entropy (PE) value reaching 0.999 in only ≈0.1 ns. Using this broad chaos source, an NIST SP 800–22 qualified ultra‐high‐speed PRBs generation at 280 Gbps per channel is received. Considering over 100 comb teeth in the AlGaAs micro‐resonator, the total PRBs generation rate is estimated ≈28 Tbps. By employing a simplified post‐processing scheme, qualified PRBs at 160 Gbps per channel is achieved, yielding a total rate of ≈16 Tbps. Furthermore, by upgrading the integrated AlGaAs micro‐resonator to a smaller FSR of 100 GHz, over 450 chaotic comb teeth are experimentally realized. Consequently, the PRBs generation rate is estimated ≈126 Tbps (280 Gbps × 450).","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"1 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144701742","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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