Iet Optoelectronics最新文献_第9页

Inverse design of a high-quality factor multi-purpose optical biosensor 高质量因子多用途光学生物传感器的反设计

IF 1.6 4区计算机科学

Iet Optoelectronics Pub Date : 2022-03-10 DOI: 10.1049/ote2.12066

Majid Mafi, Amir Hosn Esmaile

{"title":"Inverse design of a high-quality factor multi-purpose optical biosensor","authors":"Majid Mafi, Amir Hosn Esmaile","doi":"10.1049/ote2.12066","DOIUrl":"10.1049/ote2.12066","url":null,"abstract":"This paper investigates a high-quality and multi-purposed biosensor with maximum stable output transmittance numerically by using the inverse design method. The proposed biosensor utilises particle swarm optimisation for inverse design which will be a helpful way of designing different kinds of precise sensors in the future. In this research, some parameters are introduced to the optimiser to find the best cavity parameters for developing a high-quality sensor to sense different targets. Many previous studies were on single-goal biosensors, or their quality factor and output spectrum were very low. The proposed sensor can sense different parts of blood components, the amount of glucose in the urine, and tear's glucose for the first time just in one device to the best of our knowledge. Compared to previous works, this structure detects the differences between refractive indexes analytes with a high-quality factor and a high and stable output transmittance spectrum. This structure contains two-dimensional photonic crystal microresonators to provide resonance frequencies in the photonic bandgap. The device works on a window of 1.55 μm with a quality factor equal to 24,000, the sensitivity is 500 nm/RIU (refractive index unit), and the resolution is equal to 4 × 10−5. In this paper, the scaling method, particle swarm optimisation, two-dimensional finite-difference dime domain, and Plane-Wave Expansion methods are utilised.","PeriodicalId":13408,"journal":{"name":"Iet Optoelectronics","volume":"16 6","pages":"266-276"},"PeriodicalIF":1.6,"publicationDate":"2022-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ietresearch.onlinelibrary.wiley.com/doi/epdf/10.1049/ote2.12066","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47706249","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Sequel to “cubic-quartic optical soliton perturbation with complex Ginzburg–Landau equation by the enhanced Kudryashov's method” “复金兹堡-朗道方程的三次四次光孤子摄动的增强Kudryashov方法续作”

IF 1.6 4区计算机科学

Iet Optoelectronics Pub Date : 2022-02-26 DOI: 10.1049/ote2.12065

Ahmed H. Arnous, Anjan Biswas, Abdul H. Kara, Daniela Milovic, Yakup Yıldırım, Hashim M. Alshehri

引用次数: 5

Optimal power allocation in nonlinear MDM-WDM systems using Gaussian noise model 基于高斯噪声模型的非线性MDM-WDM系统最优功率分配

IF 1.6 4区计算机科学

Iet Optoelectronics Pub Date : 2022-01-20 DOI: 10.1049/ote2.12064

Mohammad Ali Amirabadi, Mohammad Hossein Kahaei, S. Alireza Nezamalhosseini, Lawrence R. Chen

{"title":"Optimal power allocation in nonlinear MDM-WDM systems using Gaussian noise model","authors":"Mohammad Ali Amirabadi, Mohammad Hossein Kahaei, S. Alireza Nezamalhosseini, Lawrence R. Chen","doi":"10.1049/ote2.12064","DOIUrl":"https://doi.org/10.1049/ote2.12064","url":null,"abstract":"Mode-division multiplexing (MDM) using few-mode fibre (FMF) has received increasing attention to address the exponential growth of data traffic in long-haul optical communication systems. Also, combining the MDM with wavelength-division multiplexing (WDM) is a promising approach for dramatically growing the transmission capacity in such systems. However, a major barrier in this regard is the FMF nonlinear effects, which can significantly reduce the link performance. In this paper, in order to alleviate the FMF nonlinear effects, we focus on power allocation in FMF links by optimizing the input power of each optical WDM channel of each spatial mode, which leads to maximizing the total capacity transmission and also the minimum signal to noise ratio (SNR) margin. The FMF nonlinearity has been already modelled as the Gaussian noise (GN) for which no closed-form formulation has been developed so far. Here, we derive a closed-form GN model for this problem and verify it by comparing with the integral-form GN model and split-step Fourier method. In this approach, an optimal power is independently determined for each channel of each mode by optimizing a capacity maximization and a minimum SNR margin maximization problem in convex forms. The performance of different links including the single mode fibre-WDM, MDM-single channel, and MDM-WDM are compared using computer simulations. These systems are comprehensively investigated in equal/non-equal required SNR as well as flat/non-flat amplifier gain scenarios. It is shown that optimized power allocation to each channel of each mode has a significant enhancement in the minimum SNR margin maximization scheme compared to the best equal power allocation. Furthermore, this improvement is much more in non-equal required SNR and the non-flat amplifier gain scenarios, showing the efficiency of the established approach in practical communication links.","PeriodicalId":13408,"journal":{"name":"Iet Optoelectronics","volume":"16 3","pages":"133-148"},"PeriodicalIF":1.6,"publicationDate":"2022-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ietresearch.onlinelibrary.wiley.com/doi/epdf/10.1049/ote2.12064","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"137864905","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Ultra-compact and ultra-broadband hybrid plasmonic-photonic vertical coupler with high coupling efficiency, directivity, and polarisation extinction ratio 具有高耦合效率、指向性和极化消光比的超紧凑、超宽带等离子体-光子混合垂直耦合器

IF 1.6 4区计算机科学

Iet Optoelectronics Pub Date : 2022-01-04 DOI: 10.1049/ote2.12063

Hamed Pezeshki, Amanda J. Wright, Eric C. Larkins

{"title":"Ultra-compact and ultra-broadband hybrid plasmonic-photonic vertical coupler with high coupling efficiency, directivity, and polarisation extinction ratio","authors":"Hamed Pezeshki, Amanda J. Wright, Eric C. Larkins","doi":"10.1049/ote2.12063","DOIUrl":"10.1049/ote2.12063","url":null,"abstract":"An ultra-compact, ultra-broadband vertical coupler for dense photonic integrated circuits is reported with a 1.07 × 0.62 μm2 wavelength-scale footprint. This hybrid plasmonic-photonic coupler uses a unique two-plane plasmonic nanoantenna array on a silicon-on-insulator waveguide. The in- and out-of-plane interference of the multipole moments and dual-feed nanoantennas results in efficient, unidirectional coupling. Finite-element simulations show that, for a 0.8 μm diameter Gaussian beam, the maximum coupling efficiency (CE) is −3.4 dB across the telecommunication C-, L- and U-bands with a 3-dB bandwidth of 230 nm. The CE is > 9 dB higher than recently reported ultra-compact plasmonic couplers. The maximum directivity and polarisation extinction ratio across the C- to U-bands are 9.2 and 24.1 dB, respectively. Finally, as an out-coupler, it has a vertical directivity of >8.5 dB, enabling its use for vertical optical interconnects between two vertically separated circuits.","PeriodicalId":13408,"journal":{"name":"Iet Optoelectronics","volume":"16 3","pages":"124-132"},"PeriodicalIF":1.6,"publicationDate":"2022-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ietresearch.onlinelibrary.wiley.com/doi/epdf/10.1049/ote2.12063","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48250661","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6

Remote Sensing Image Denoising Algorithm Based on Filtering Method and Matrix Low-Rank Sparse Decomposition 基于滤波法和矩阵低秩稀疏分解的遥感图像去噪算法

IF 1.6 4区计算机科学

Iet Optoelectronics Pub Date : 2022-01-01 DOI: 10.12677/oe.2022.122006

慧吕