Fiber and Integrated Optics最新文献_第9页

Study on feature analysis used for designing hand-held retina vessels extraction sensor 特征分析用于手持式视网膜血管提取传感器设计的研究

IF 1.7 4区物理与天体物理

Fiber and Integrated Optics Pub Date : 2019-09-13 DOI: 10.1117/12.2537776

Piotr A. Buler, Krzysztof Murawski

引用次数: 0

Thermographic analysis of power oil transformer surface hot spot areas combined with analysis of acoustic signals recorded on line 结合在线记录的声信号分析，对电力油变压器表面热点区域进行热成像分析

IF 1.7 4区物理与天体物理

Fiber and Integrated Optics Pub Date : 2019-09-13 DOI: 10.1117/12.2536700

A. Lisowska-Lis, F. Witos, G. Szerszeń

{"title":"Thermographic analysis of power oil transformer surface hot spot areas combined with analysis of acoustic signals recorded on line","authors":"A. Lisowska-Lis, F. Witos, G. Szerszeń","doi":"10.1117/12.2536700","DOIUrl":"https://doi.org/10.1117/12.2536700","url":null,"abstract":"The paper presents the results of thermographic and acoustic analysis of exemplary oil power transformer. Series of thermograms were taken. The higher temperature areas were distinguished on the transformer surfaces under different ambient temperatures. The thermograms indicated hot areas at the top of the transformer, especially under high ambient temperature. There were three areas that emit intensive infrared radiation in the spectrum: 7.5 μm < λ< 13 μm. These areas are located in the upper part of the transformer in zones of intense oil circulation forced by the cooling system. According to thermographic research the state of the transformer and the cooling system was proper. Within acoustic research, two areas were located with sources of magnetoacoustic signals of increased activity with the spectrum 15-65 kHz. Sources of these signals were intense phenomena occurring during the magnetization of ferromagnetic materials. No acoustic emission signal with increased activity from partial discharges were detected. The result of thermographic analysis corresponds with the results of acoustic signals analysis and analyzed together give a broader common description of the examined phenomena.","PeriodicalId":50449,"journal":{"name":"Fiber and Integrated Optics","volume":"11204 1","pages":"112040B - 112040B-8"},"PeriodicalIF":1.7,"publicationDate":"2019-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77789068","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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: 1

Silk fibroin thin films for optical humidity sensing 光学湿度传感用丝素薄膜

IF 1.7 4区物理与天体物理

Fiber and Integrated Optics Pub Date : 2019-09-13 DOI: 10.1117/12.2536659

M. Procek, Z. Opilski, Augusto Márquez Maqueda, Xavier Muñoz Berbel, S. Aznar-Cervantes, José Luis Cenis, Carlos Domínguez Horna

引用次数: 2

Analysis of optical magnetic field sensor in wide range of wavelengths 宽波长范围光磁场传感器分析

IF 1.7 4区物理与天体物理

Fiber and Integrated Optics Pub Date : 2019-09-13 DOI: 10.1117/12.2536586

K. Barczak

引用次数: 0

Growth and preliminary characterization of InAsSb photodiodes for mid-wave infrared detection 用于中波红外探测的InAsSb光电二极管的生长和初步表征

IF 1.7 4区物理与天体物理

Fiber and Integrated Optics Pub Date : 2019-09-13 DOI: 10.1117/12.2536801

K. Lipski, Ł. Kubiszyn, K. Michalczewski, Krzysztof Murawski, P. Martyniuk

引用次数: 0

On the nonlinear dynamics of coupled micro-resonators 耦合微谐振器的非线性动力学研究

IF 1.7 4区物理与天体物理

Fiber and Integrated Optics Pub Date : 2019-09-13 DOI: 10.1117/12.2537262

D. Nguyen, X. Dinh, Xu Le, V. Nguyen, M. Trippenbach

引用次数: 0

The sensitivity of reduced graphene oxide to H2 and NO2 还原氧化石墨烯对H2和NO2的敏感性

IF 1.7 4区物理与天体物理

Fiber and Integrated Optics Pub Date : 2019-09-13 DOI: 10.1117/12.2537739

S. Drewniak, M. Procek

引用次数: 0

Simplified Approach for Optimizing Optical Asymmetric Curved Waveguides of Broadband Directional Couplers 宽带定向耦合器光不对称弯曲波导优化的简化方法

IF 1.7 4区物理与天体物理

Fiber and Integrated Optics Pub Date : 2019-09-03 DOI: 10.1080/01468030.2019.1659460

Lemi Bedjisa Dano, San-Liang Lee, Wen-Hsien Fang

{"title":"Simplified Approach for Optimizing Optical Asymmetric Curved Waveguides of Broadband Directional Couplers","authors":"Lemi Bedjisa Dano, San-Liang Lee, Wen-Hsien Fang","doi":"10.1080/01468030.2019.1659460","DOIUrl":"https://doi.org/10.1080/01468030.2019.1659460","url":null,"abstract":"ABSTRACT Optical broadband directional couplers (BDCs) are indispensable components for providing wavelength-insensitive and flexible optical splitting in the construction of functional photonic integrated circuits (PICs). The existing BDC device structures are usually required to determine specific design parameters for different waveguide structures and operating wavelength bands. To circumvent this dilemma, here we present a novel optimization procedure to realize a compact BDC by using the asymmetric curved waveguide structure. The versatile particle swarm optimization (PSO) technique is adopted to determine the optimal device parameters of the compact and broadband asymmetric curved directional couplers (ACDCs) for different coupling ratios. In order to reduce the computational complexity in the optimization, the 3D ACDC is first converted to an equivalent 2D structure by using the modified effective index method (MEIM). The device parameters of the equivalent 2D ACDC are optimized by the PSO with the objective function of a wavelength flattened coupling ratio. Afterward, the optimized 2D structure is converted to the 3D one by including the waveguide thickness. To cope with the approximation error by the MEIM, the 3D ACDC is further fine-tuned by sweeping one of the device parameters with the full 3D simulation but keeping all of the other optimal parameters obtained from the PSO intact. As a result, a DC with broad bandwidth of 100 nm is obtained over the wavelength range from 1.50 µm to 1.60 µm with a very small coupling length of 6 µm. The semi-optimized ACDC is used to construct an unbalanced Mach-Zehnder interferometer (MZI) and a Sagnac loop mirror (SLM), both of which show high extinction ratios of >25 dB over a broad wavelength range with low excess loss.","PeriodicalId":50449,"journal":{"name":"Fiber and Integrated Optics","volume":"50 1","pages":"285 - 303"},"PeriodicalIF":1.7,"publicationDate":"2019-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86141691","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Design of Two 8-Channel Optical Demultiplexers Using 2D Photonic Crystal Homogeneous Ring Resonators 基于二维光子晶体均匀环形谐振器的两个8通道光解复用器的设计

IF 1.7 4区物理与天体物理

Fiber and Integrated Optics Pub Date : 2019-08-08 DOI: 10.1080/01468030.2019.1652868

V. Fallahi, M. Mohammadi, M. Seifouri

{"title":"Design of Two 8-Channel Optical Demultiplexers Using 2D Photonic Crystal Homogeneous Ring Resonators","authors":"V. Fallahi, M. Mohammadi, M. Seifouri","doi":"10.1080/01468030.2019.1652868","DOIUrl":"https://doi.org/10.1080/01468030.2019.1652868","url":null,"abstract":"ABSTRACT Ring resonators have always been referred to as a highly flexible structure for designing optical devices. In this paper, we have designed and evaluated two 8-channel optical demultiplexers using photonic crystal ring resonators. The purpose of this study is to investigate the flexibility of this type of resonator for designing and manufacturing optical devices based on photonic crystals. To the extent that we have investigated the literature, there is no report so far on such a study. For this purpose, two structures with the same structural parameters, but only with a difference in the type of lattice constant (square or triangular) are used. Both structures have a common photonic band gap within a proper range for telecommunication applications used in wavelength-division multiplexing (WDM) systems. Both designed structures have an average crosstalk of −26 dB. For the demultiplexer structure with a square lattice constant, the quality factor and the transmission coefficient are 3,046 and 93.7% respectively, and its channel spacing is 1.97 nm. For the structure with a triangular lattice constant, the quality factor and the transmission coefficient are 1577.7 and 94.5%, respectively and its channel spacing is equal to 4 nm. To obtain the photonic band gap of the structures, the plane wave expansion (PWE) method is used and the output spectrum of the structures is obtained using the finite-difference time-domain (FDTD) method. The good results obtained in this study is through designing and simulating optical demultiplexer structures only by creating a change in the type of lattice constant used. This undoubtedly justifies the high flexibility of ring resonators, when used in the design of optical devices, as well as their suitability for the use in WDM systems","PeriodicalId":50449,"journal":{"name":"Fiber and Integrated Optics","volume":"7 1","pages":"271 - 284"},"PeriodicalIF":1.7,"publicationDate":"2019-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81947077","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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: 19

Experimental Verification on a Slicing Management Based on the mPlane Monitoring Plane with GPON Comparison 基于mPlane监控平面的切片管理与GPON比较的实验验证

IF 1.7 4区物理与天体物理

Fiber and Integrated Optics Pub Date : 2019-07-11 DOI: 10.1080/01468030.2019.1641252

E. Tego, F. Matera, V. Attanasio, E. Nastri

引用次数: 2