Advanced Photonics Nexus最新文献_第4页

Deep image prior plus sparsity prior: toward single-shot full-Stokes spectropolarimetric imaging with a multiple-order retarder 深度图像先验加稀疏先验:用多阶延迟器实现单次全斯托克斯光谱偏振成像

Advanced Photonics Nexus Pub Date : 2023-05-01 DOI: 10.1117/1.APN.2.3.036009

Feng Han, Tingkui Mu, Haoyang Li, Abudusalamu Tuniyazi

{"title":"Deep image prior plus sparsity prior: toward single-shot full-Stokes spectropolarimetric imaging with a multiple-order retarder","authors":"Feng Han, Tingkui Mu, Haoyang Li, Abudusalamu Tuniyazi","doi":"10.1117/1.APN.2.3.036009","DOIUrl":"https://doi.org/10.1117/1.APN.2.3.036009","url":null,"abstract":"Abstract. Compressive full-Stokes spectropolarimetric imaging (SPI), integrating passive polarization modulator (PM) into general imaging spectrometer, is powerful enough to capture high-dimensional information via incomplete measurement; a reconstruction algorithm is needed to recover 3D data cube (x, y, and λ) for each Stokes parameter. However, existing PMs usually consist of complex elements and enslave to accurate polarization calibration, current algorithms suffer from poor imaging quality and are subject to noise perturbation. In this work, we present a single multiple-order retarder followed a polarizer to implement passive spectropolarimetric modulation. After building a unified forward imaging model for SPI, we propose a deep image prior plus sparsity prior algorithm for high-quality reconstruction. The method based on untrained network does not need training data or accurate polarization calibration and can simultaneously reconstruct the 3D data cube and achieve self-calibration. Furthermore, we integrate the simplest PM into our miniature snapshot imaging spectrometer to form a single-shot SPI prototype. Both simulations and experiments verify the feasibility and outperformance of our SPI scheme. It provides a paradigm that allows general spectral imaging systems to become passive full-Stokes SPI systems by integrating the simplest PM without changing their intrinsic mechanism.","PeriodicalId":223078,"journal":{"name":"Advanced Photonics Nexus","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116071470","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

Fringe-pattern analysis with ensemble deep learning 基于集成深度学习的条纹模式分析

Advanced Photonics Nexus Pub Date : 2023-05-01 DOI: 10.1117/1.APN.2.3.036010

Shijie Feng, Yile Xiao, Wei Yin, Yan Hu, Yixuan Li, C. Zuo, Qian Chen

{"title":"Fringe-pattern analysis with ensemble deep learning","authors":"Shijie Feng, Yile Xiao, Wei Yin, Yan Hu, Yixuan Li, C. Zuo, Qian Chen","doi":"10.1117/1.APN.2.3.036010","DOIUrl":"https://doi.org/10.1117/1.APN.2.3.036010","url":null,"abstract":"Abstract. In recent years, there has been tremendous progress in the development of deep-learning-based approaches for optical metrology, which introduce various deep neural networks (DNNs) for many optical metrology tasks, such as fringe analysis, phase unwrapping, and digital image correlation. However, since different DNN models have their own strengths and limitations, it is difficult for a single DNN to make reliable predictions under all possible scenarios. In this work, we introduce ensemble learning into optical metrology, which combines the predictions of multiple DNNs to significantly enhance the accuracy and reduce the generalization error for the task of fringe-pattern analysis. First, several state-of-the-art base models of different architectures are selected. A K-fold average ensemble strategy is developed to train each base model multiple times with different data and calculate the mean prediction within each base model. Next, an adaptive ensemble strategy is presented to further combine the base models by building an extra DNN to fuse the features extracted from these mean predictions in an adaptive and fully automatic way. Experimental results demonstrate that ensemble learning could attain superior performance over state-of-the-art solutions, including both classic and conventional single-DNN-based methods. Our work suggests that by resorting to collective wisdom, ensemble learning offers a simple and effective solution for overcoming generalization challenges and boosts the performance of data-driven optical metrology methods.","PeriodicalId":223078,"journal":{"name":"Advanced Photonics Nexus","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121804194","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

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