Optics Communications最新文献_第2页

Are low- and high-loss glass–ceramic optical fibers possible game changers? 低损耗和高损耗玻璃陶瓷光纤能否改变游戏规则？

IF 2.2 3区物理与天体物理

Optics Communications Pub Date : 2024-11-10 DOI: 10.1016/j.optcom.2024.131300

Wilfried Blanc , Daniele Tosi , Arnaldo Leal-Junior , Maurizio Ferrari , John Ballato

引用次数: 0

Improved inverse design of polarization splitter with advanced Bayesian optimization 利用先进的贝叶斯优化技术改进偏振分光器的反向设计

IF 2.2 3区物理与天体物理

Optics Communications Pub Date : 2024-11-10 DOI: 10.1016/j.optcom.2024.131272

Chenyuan Xu , Tingge Dai , Huangtao Wei , Meng Wang , Haoran Ma , Jianyi Yang , Xiaochen Luo , Yuehai Wang

{"title":"Improved inverse design of polarization splitter with advanced Bayesian optimization","authors":"Chenyuan Xu , Tingge Dai , Huangtao Wei , Meng Wang , Haoran Ma , Jianyi Yang , Xiaochen Luo , Yuehai Wang","doi":"10.1016/j.optcom.2024.131272","DOIUrl":"10.1016/j.optcom.2024.131272","url":null,"abstract":"<div><div>As many silicon nanophotonic devices are polarization-dependent, a polarization beam splitter that divides TE and TM modes is an essential component for photonic integrated circuits. Various structures have been proposed for polarization splitters, but it is still challenging to simultaneously achieve low insertion loss, high extinction ratio, compact size and simplicity of fabrication. In this paper, we combine new machine learning methods with the principle of multimode interference to propose a novel design for a polarization beam splitter. Our design has low insertion loss (-0.17dB/-0.42dB) and high extinction ratio (-23.1dB/-23.4dB) at the central wavelength of 1550nm for TE/TM modes, with compact size of <span><math><mrow><mn>2</mn><mo>×</mo><mn>19</mn><mi>μ</mi><msup><mrow><mi>m</mi></mrow><mrow><mn>2</mn></mrow></msup></mrow></math></span> and fabrication constraints strictly satisfied. Furthermore, our design is a standard 220nm-thick single-layer device for the silicon-on-insulator platform, without any auxiliary structures, making it easy for fabrication. Since our design cannot be optimized by the most commonly used methods, we adopt several specialized techniques to Bayesian optimization for inverse design. In this paper, we also share these skills which are simple but effective, possible to solve much more complicated design problems than others.</div></div>","PeriodicalId":19586,"journal":{"name":"Optics Communications","volume":"575 ","pages":"Article 131272"},"PeriodicalIF":2.2,"publicationDate":"2024-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142654666","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Tunable blue-green vortex pulse laser emitting from an optical parametric oscillator 由光参量振荡器发射的可调谐蓝绿涡旋脉冲激光器

IF 2.2 3区物理与天体物理

Optics Communications Pub Date : 2024-11-09 DOI: 10.1016/j.optcom.2024.131298

Qihui Luo , Jian Ma , Yilan Chen , Tingting Lu , Junxuan Zhang , Haoda Ma , Xiaolei Zhu

引用次数: 0

L-band wavelength-switchable bound states in a hybrid mode-locked fiber laser 混合模式锁定光纤激光器中的 L 波段波长可切换束缚态

IF 2.2 3区物理与天体物理

Optics Communications Pub Date : 2024-11-09 DOI: 10.1016/j.optcom.2024.131297

Yi Wang , Baole Lu , Chenyue Lv , Hengyu Zhang , Qimeng Lin , Jintao Bai

引用次数: 0

Parameter extraction method for assisting inverse design of DFB lasers based on rate equations and generative adversarial network 基于速率方程和生成式对抗网络的参数提取方法，用于辅助 DFB 激光器的逆向设计

IF 2.2 3区物理与天体物理

Optics Communications Pub Date : 2024-11-09 DOI: 10.1016/j.optcom.2024.131283

Qun Niu , Xinyu Cao , Shengyuan Fan , Qing-an Ding , Liuge Du , Huixin Liu , Ziyang Wang , Jinghao Lu

{"title":"Parameter extraction method for assisting inverse design of DFB lasers based on rate equations and generative adversarial network","authors":"Qun Niu , Xinyu Cao , Shengyuan Fan , Qing-an Ding , Liuge Du , Huixin Liu , Ziyang Wang , Jinghao Lu","doi":"10.1016/j.optcom.2024.131283","DOIUrl":"10.1016/j.optcom.2024.131283","url":null,"abstract":"<div><div>Effective parameter extraction without redundant experiments is a hot topic in the inverse design of lasers. A tandem model based on a generative adversarial network (GAN) has been proposed to accurately extract theoretical rate equation parameters of distributed feedback (DFB) lasers, avoiding the erroneous tendency caused by measurement accuracy and optimization algorithms. Cascading the deep neural network (DNN) with the GAN, the trained model can effectively extract parameters and construct forward model by solving rate equations numerically, which is more generalized and robust than the traditional network. The solution can breakthrough the potential boundaries and local optima encountered from the structure consisting of forward convolutional neural network (CNN) and particle swarm optimization (PSO) algorithms. Results demonstrate the presented model obviously addresses the demand of the substantial time and computational resources of traditional numerical solving methods, exhibits powerful convergence and its relative average error (RAE) is significantly improved with comparison to PSO–CNN under similar conditions. The extracted rate equation parameters can offer a more precise reference theoretically for the previous initialization of other extraction approaches, even the suggested neural network serves as a guidance for other optoelectronic devices design inversed.</div></div>","PeriodicalId":19586,"journal":{"name":"Optics Communications","volume":"575 ","pages":"Article 131283"},"PeriodicalIF":2.2,"publicationDate":"2024-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142654590","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Speckle characteristic based auto-focusing approach for diffuse object in digital holography 基于斑点特征的数字全息术中漫反射物体自动聚焦方法

IF 2.2 3区物理与天体物理

Optics Communications Pub Date : 2024-11-09 DOI: 10.1016/j.optcom.2024.131301

Yuemeng zhang , Kaiping Li , Jun Long, Ping Cai

引用次数: 0

Development of a Broadband high-resolution X-ray spectrometer with new toroidally bent crystal 利用新型环形弯曲晶体开发宽带高分辨率 X 射线光谱仪

IF 2.2 3区物理与天体物理

Optics Communications Pub Date : 2024-11-08 DOI: 10.1016/j.optcom.2024.131289

Jun Shi , Ji-xin Yang , Yue Jiang , Miao Li , Feng Wang , Guo-hong Yang , Min-xi Wei , Ao Sun

引用次数: 0

Simple synthesis of AgInS2/ZnS core/shell quantum dots with wide tunable emission wavelength for white light-emitting diodes 简单合成具有宽可调发射波长的 AgInS2/ZnS 核/壳量子点，用于白光发光二极管

IF 2.2 3区物理与天体物理

Optics Communications Pub Date : 2024-11-08 DOI: 10.1016/j.optcom.2024.131285

Qing Ma , Bin Yang , Fengrui Yan , Yanzi Sun , Jiandi Yuan , Qingping Li , Lanting Huang , Tingting Zhang , Qinghua Li

{"title":"Simple synthesis of AgInS2/ZnS core/shell quantum dots with wide tunable emission wavelength for white light-emitting diodes","authors":"Qing Ma , Bin Yang , Fengrui Yan , Yanzi Sun , Jiandi Yuan , Qingping Li , Lanting Huang , Tingting Zhang , Qinghua Li","doi":"10.1016/j.optcom.2024.131285","DOIUrl":"10.1016/j.optcom.2024.131285","url":null,"abstract":"<div><div>Phosphor with efficient and broad range emission is necessary for lighting applications. I-III-VI group quantum dots (QDs) have the advantages of non-toxic composition and large adjustable spectrum range, and have potential applications in the field of lighting. However, the efficient luminescence of these QDs at shorter wavelengths still needs further study, which is crucial for the development of high color rendering index white light LED devices (WLEDs). In this work, wide visible range emitting AgInS<sub>2</sub>/ZnS QDs with broad band and high luminous efficiency were obtained by altering the Ag/In ratios and Zn<sup>2+</sup> inter-diffusion with cation of AgInS<sub>2</sub>. Photo-luminescent (PL) wavelength range of the obtained core-shell structured AgInS<sub>2</sub>/ZnS extended from 703 nm to 524 nm with high PL quantum yield (QY) and stability. The champion device based on the optimized AgInS<sub>2</sub>/ZnS QDs exhibits warm white light (correlated color temperature = 3652 K) characteristics with high color rendering index (CRI Ra) of 92.85 while maintaining excellent color stability under different driving currents. These properties are far superior to those of WLEDs with YAG phosphor.</div></div>","PeriodicalId":19586,"journal":{"name":"Optics Communications","volume":"575 ","pages":"Article 131285"},"PeriodicalIF":2.2,"publicationDate":"2024-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142654596","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Long-wave infrared multi-spectral filter arrays based on surface plasma polaritons 基于表面等离子体极化子的长波红外多光谱滤波器阵列

IF 2.2 3区物理与天体物理

Optics Communications Pub Date : 2024-11-08 DOI: 10.1016/j.optcom.2024.131282

Yanbo Wang , Keyan Dong , Yansong Song , Mingxu Piao , Bo Zhang , Lei Zhang , Gangqi Yan , Zonglin Liang , Tianci Liu , Xinhang Li

{"title":"Long-wave infrared multi-spectral filter arrays based on surface plasma polaritons","authors":"Yanbo Wang , Keyan Dong , Yansong Song , Mingxu Piao , Bo Zhang , Lei Zhang , Gangqi Yan , Zonglin Liang , Tianci Liu , Xinhang Li","doi":"10.1016/j.optcom.2024.131282","DOIUrl":"10.1016/j.optcom.2024.131282","url":null,"abstract":"<div><div>An infrared multi-spectral filter based on surface plasmon polaritons is proposed in this study. It is used to achieve optical filtering in the long-wave infrared range of 8–14 μm. After coupling with the plasma polaritons excited on the surface of Au film, the incident light propagates through periodic sub-wavelength through-holes. We analyzed the transmission characteristics of the filter with periodic sub-wavelength through-holes and its local field distribution using the Finite-Difference Time-Domain (FDTD), and carried out the tolerance analysis to demonstrate the possibility of large-scale and low-cost processing. The simulation results indicated that our proposed filter attained four spectral channels in the spectral range of 8–14 μm with peak energy transmittance up to about 60%, and wide tolerances as well as polarization-insensitive characteristics. Our proposed long-wave infrared filters can provide efficient and low-cost solutions for lightweight multi-spectral devices and all-weather detection.</div></div>","PeriodicalId":19586,"journal":{"name":"Optics Communications","volume":"575 ","pages":"Article 131282"},"PeriodicalIF":2.2,"publicationDate":"2024-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142654599","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Angled fiber-coupled MgF2 microcavities for nonlinear optics in 1.5 and 2μm bands 用于 1.5 和 2μm 波段非线性光学的成角度光纤耦合 MgF2 微腔

IF 2.2 3区物理与天体物理

Optics Communications Pub Date : 2024-11-08 DOI: 10.1016/j.optcom.2024.131264

Guoping Lin, Xiangru Sun, Rui Wang

{"title":"Angled fiber-coupled MgF2 microcavities for nonlinear optics in 1.5 and 2μm bands","authors":"Guoping Lin, Xiangru Sun, Rui Wang","doi":"10.1016/j.optcom.2024.131264","DOIUrl":"10.1016/j.optcom.2024.131264","url":null,"abstract":"<div><div>A versatile angled fiber coupling platform for magnesium fluoride whispering gallery mode resonators is used to investigate nonlinear frequency conversion across 1.5 and 2 <span><math><mrow><mi>μ</mi><mi>m</mi></mrow></math></span> bands. We characterize MgF<span><math><msub><mrow></mrow><mrow><mn>2</mn></mrow></msub></math></span> microcavities of varying sizes (4.3 mm, 1.9 mm, and 0.73 mm in diameter), achieving quality factors up to <span><math><mrow><mn>2</mn><mo>×</mo><mn>1</mn><msup><mrow><mn>0</mn></mrow><mrow><mn>9</mn></mrow></msup></mrow></math></span> at <span><math><mrow><mn>1</mn><mo>.</mo><mn>55</mn><mspace></mspace><mi>μ</mi><mi>m</mi></mrow></math></span> and <span><math><mrow><mn>5</mn><mo>×</mo><mn>1</mn><msup><mrow><mn>0</mn></mrow><mrow><mn>8</mn></mrow></msup></mrow></math></span> at <span><math><mrow><mn>1</mn><mo>.</mo><mn>94</mn><mspace></mspace><mi>μ</mi><mi>m</mi></mrow></math></span>. In the telecom regime, we observe rich nonlinear phenomena including Kerr comb generation, Brillouin lasing, and Raman lasing. Extending to the 2 <span><math><mrow><mi>μ</mi><mi>m</mi></mrow></math></span> band, we demonstrate four-wave mixing in a sub-millimeter cavity, highlighting the platform’s potential for the 2 <span><math><mrow><mi>μ</mi><mi>m</mi></mrow></math></span> band mid-infrared nonlinear optics.</div></div>","PeriodicalId":19586,"journal":{"name":"Optics Communications","volume":"575 ","pages":"Article 131264"},"PeriodicalIF":2.2,"publicationDate":"2024-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142654594","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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