Advanced Photonics Nexus最新文献_第4页

Joint device architecture algorithm codesign of the photonic neural processing unit 光子神经处理单元联合器件架构算法协同设计

Advanced Photonics Nexus Pub Date : 2023-05-01 DOI: 10.1117/1.APN.2.3.036014

L. Pei, Zeya Xi, B. Bai, Jianshuai Wang, Jingjing Zheng, Jing Li, T. Ning

引用次数: 0

Long-range chaotic Brillouin optical correlation domain analysis with more than one million resolving points 超过一百万个分辨点的远程混沌布里渊光学相关域分析

Advanced Photonics Nexus Pub Date : 2023-05-01 DOI: 10.1117/1.APN.2.3.036011

Yahui Wang, Xinxin Hu, Lintao Niu, Hui Liu, Jianzhong Zhang, Mingjiang Zhang

引用次数: 2

About the cover: Advanced Photonics Nexus Volume 2, Issue 3 关于封面:先进光子Nexus卷2，第3期

Advanced Photonics Nexus Pub Date : 2023-05-01 DOI: 10.1117/1.APN.2.3.039901

Hanxiang Yang, Jiawei Yan

引用次数: 0

Reconfigurable structured light generation and its coupling to air–core fiber 可重构结构光的产生及其与空芯光纤的耦合

Advanced Photonics Nexus Pub Date : 2023-05-01 DOI: 10.1117/1.APN.2.3.036015

Yize Liang, Hongya Wang, Xi Zhang, Jianzhou Ai, Zelin Ma, S. Ramachandran, Jian Wang

引用次数: 0

Multiparameter encrypted orbital angular momentum multiplexed holography based on multiramp helicoconical beams 基于多斜坡螺旋锥光束的多参数加密轨道角动量复用全息

Advanced Photonics Nexus Pub Date : 2023-05-01 DOI: 10.1117/1.APN.2.3.036013

Nian Zhang, Baoxing Xiong, Xiang Zhang, Xiao Yuan

引用次数: 4

Characteristics of a Gaussian focus embedded within spiral patterns in common-path interferometry with phase apertures 带相位孔径的共程干涉中嵌入螺旋图形的高斯焦点的特性

Advanced Photonics Nexus Pub Date : 2023-04-24 DOI: 10.1117/1.APN.2.3.036008

Yizhou Tan, Ying Gu

{"title":"Characteristics of a Gaussian focus embedded within spiral patterns in common-path interferometry with phase apertures","authors":"Yizhou Tan, Ying Gu","doi":"10.1117/1.APN.2.3.036008","DOIUrl":"https://doi.org/10.1117/1.APN.2.3.036008","url":null,"abstract":"Abstract. A phase-only method is proposed to transform an optical vortex field into desired spiral diffraction–interference patterns. Double-ring phase apertures are designed to produce a concentric high-order vortex beam and a zeroth-order vortex beam, and the diffracted intensity ratio of two beams is adjustable between 0 and 1. The coherent superposition of the two diffracted beams generates a brighter Airy spot (or Poisson spot) in the middle of the spiral pattern, where the singularity for typical vortex beam is located. Experiments employing circular, triangular, and rectangular phase apertures with topological charges from 3 to 16 demonstrate a stable, compact, and flexible apparatus for vortex beam conversion. By adjusting the parameters of the phase aperture, the proposed method can realize the optical Gaussian tweezer function and the optical vortex tweezer function simultaneously along the same axis or switch the experimental setup between the two functions. It also has potential applications in light communication through turbulent air by transmitting an orbital angular momentum-coded signal with a concentric beacon laser.","PeriodicalId":223078,"journal":{"name":"Advanced Photonics Nexus","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131482970","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Generation of high-efficiency, high-purity, and broadband Laguerre-Gaussian modes from a Janus optical parametric oscillator 产生高效率，高纯度，宽带拉盖尔-高斯模式从一个Janus光学参量振荡器

Advanced Photonics Nexus Pub Date : 2023-04-21 DOI: 10.1117/1.APN.2.3.036007

Dunzhao Wei, Pengcheng Chen, Yipeng Zhang, Wenzhe Yao, R. Ni, Xiaopeng Hu, X. Lv, Shi-Deng Zhu, Min Xiao, Yong Zhang

{"title":"Generation of high-efficiency, high-purity, and broadband Laguerre-Gaussian modes from a Janus optical parametric oscillator","authors":"Dunzhao Wei, Pengcheng Chen, Yipeng Zhang, Wenzhe Yao, R. Ni, Xiaopeng Hu, X. Lv, Shi-Deng Zhu, Min Xiao, Yong Zhang","doi":"10.1117/1.APN.2.3.036007","DOIUrl":"https://doi.org/10.1117/1.APN.2.3.036007","url":null,"abstract":"Abstract. Laguerre-Gaussian (LG) modes, carrying the orbital angular momentum of light, are critical for important applications, such as high-capacity optical communications, superresolution imaging, and multidimensional quantum entanglement. Advanced developments in these applications demand reliable and tunable LG mode laser sources, which, however, do not yet exist. Here, we experimentally demonstrate highly efficient, highly pure, broadly tunable, and topological-charge-controllable LG modes from a Janus optical parametric oscillator (OPO). The Janus OPO featuring a two-faced cavity mode is designed to guarantee an efficient evolution from a Gaussian-shaped fundamental pump mode to a desired LG parametric mode. The output LG mode has a tunable wavelength between 1.5 and 1.6 μm with a conversion efficiency >15 % , a controllable topological charge up to 4, and a mode purity as high as 97%, which provides a high-performance solid-state light source for high-end demands in multidimensional multiplexing/demultiplexing, control of spin-orbital coupling between light and atoms, and so on.","PeriodicalId":223078,"journal":{"name":"Advanced Photonics Nexus","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130877043","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Statistical dynamics of noise-like rectangle pulse fiber laser 类噪声矩形脉冲光纤激光器的统计动力学

Advanced Photonics Nexus Pub Date : 2023-04-19 DOI: 10.1117/1.APN.2.3.036005

Yujia Li, Dongmei Huang, Yihuan Shi, Chao Wang, Feng Li

{"title":"Statistical dynamics of noise-like rectangle pulse fiber laser","authors":"Yujia Li, Dongmei Huang, Yihuan Shi, Chao Wang, Feng Li","doi":"10.1117/1.APN.2.3.036005","DOIUrl":"https://doi.org/10.1117/1.APN.2.3.036005","url":null,"abstract":"Abstract. The statistical dynamics of partially incoherent ultrafast lasers are complex and chaotic, which is significant for fundamental research and practical applications. We experimentally and theoretically reveal the statistical dynamics of the spectral evolutions and correlations in an incoherent noise-like rectangle pulse laser (NLRPL). Based on statistical histogram analysis, the probability distribution asymmetry of the spectral intensity fluctuation is decayed with the wavelength far away from the spectral peak due to the detection noise. The full-spectral correlation values indicate that the spectral similarity between two round trips is exponentially weakened as the round-trip offset increases. By studying the correlation map of spectral components, we find that the area of the high-correlation region is relevant to the pump power, which is reduced by increasing the pump power. The mutual information of the spectra demonstrates that two spectral components with symmetry about the spectral peak have a statistical dependence. Experimental observations and statistical properties can coincide well with theoretical numerical simulations. We reveal the pump-dependent spectral correlation of the NLRPL and provide multiple statistical methods for the characterizations of chaotic dynamics in incoherent light sources.","PeriodicalId":223078,"journal":{"name":"Advanced Photonics Nexus","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131551464","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Structural designs of AlGaN/GaN nanowire-based photoelectrochemical photodetectors: carrier transport regulation in GaN segment as current flow hub 基于AlGaN/GaN纳米线的光电电化学光电探测器结构设计:GaN段作为电流枢纽的载流子输运调控

Advanced Photonics Nexus Pub Date : 2023-04-17 DOI: 10.1117/1.APN.2.3.036003

S. Wang, Pengfei Shao, Ting Zhi, Zhujun Gao, Wenhao Chen, Lin Hao, Q. Cai, Jin Wang, J. Xue, Bin Liu, Dunjun Chen, Lianhui Wang, Rong Zhang

{"title":"Structural designs of AlGaN/GaN nanowire-based photoelectrochemical photodetectors: carrier transport regulation in GaN segment as current flow hub","authors":"S. Wang, Pengfei Shao, Ting Zhi, Zhujun Gao, Wenhao Chen, Lin Hao, Q. Cai, Jin Wang, J. Xue, Bin Liu, Dunjun Chen, Lianhui Wang, Rong Zhang","doi":"10.1117/1.APN.2.3.036003","DOIUrl":"https://doi.org/10.1117/1.APN.2.3.036003","url":null,"abstract":"Abstract. The AlGaN/GaN p–n junction has received extensive attention due to its capability of rapid photogenerated carrier separation in photodetection devices. The AlGaN/GaN heterojunction nanowires (NWs) have been especially endowed with new life for distinctive transport characteristics in the photoelectrochemical (PEC) detection field. A self-powered PEC ultraviolet photodetector (PEC UV PD) based on the p-AlGaN/n-GaN heterojunction NW is reported in this work. The n-GaN NW layer plays a crucial role as a current flow hub to regulate carrier transport, which mainly acts as a light absorber under 365 nm and carrier recombination layer under 255 nm illumination, which can effectively modulate photoresponsivity at different wavelengths. Furthermore, by designing the thicknesses of the NW layer, the photocurrent polarity reversal was successfully achieved in the constructed AlGaN/GaN NW PEC UV PD at two different light wavelengths. In addition, by combining with platinum decoration, the photoresponse performance could be further enhanced. Our work provides insight into transport mechanisms in the AlGaN/GaN NW PEC system, and offers a feasible and comprehensive strategy for further exploration of multifunctional optoelectronic devices.","PeriodicalId":223078,"journal":{"name":"Advanced Photonics Nexus","volume":"129 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132099184","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Low-insertion-loss femtosecond laser-inscribed three-dimensional high-density mux/demux devices 低插入损耗飞秒激光雕刻三维高密度mux/demux器件

Advanced Photonics Nexus Pub Date : 2023-04-12 DOI: 10.1117/1.APN.2.3.036002

Yize Liang, Chengkun Cai, Kangrui Wang, X. Lian, Jue Wang, Jinfeng Liu, Lei Shen, Jian Wang

引用次数: 0