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Investigation of free space optical communication using spectrum slicing under different weather condition Opt. Rev. (IF 1.047) Pub Date : 2022-08-05 Ekta Vasani, Vrushank Shah
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A fast data synchronization technique in optical inter-connected data centers Opt. Switch. Netw. (IF 1.828) Pub Date : 2022-07-30 Yang Lu, Lufang Cao, Kaiqiang Xu, Xuemeng Li, Hongsheng Deng, Yunxin Lv, Yanrong Zhai
A fast data synchronization method in optical inter-connected data center is proposed. The origin data are combined to fewer coded data to reduce the synchronization slots. The coded data are broadcast to other nodes. Each node decodes the coded data to recover its missing data. A coding strategy based on coding matrices is proposed for various data distribution. The parity-check matrices in error-control
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Performance comparisons between inverted and conventional avalanche photodiodes for larger capacity applications Opt. Rev. (IF 1.047) Pub Date : 2022-07-22 Zhuodong Liao, Ke Li, Haoran Liu, Xiaofeng Duan, Yongqing Huang, Kai Liu
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Spectral transmittance and luminance factor of the binocular separation glasses for stereotests using random-dot stereograms Opt. Rev. (IF 1.047) Pub Date : 2022-07-21 Shunya Tatara, Osamu Masuda, Fumiatsu Maeda
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Depth estimation of protoporphyrin IX objects in turbid media considering the fluorescence intensity ratio between two wavelengths of light for application in invasion diagnosis of gastric cancer Opt. Rev. (IF 1.047) Pub Date : 2022-07-21 Hinano Imanishi, Takahiro Nishimura, Kunio Awazu
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LiFi and Hybrid WiFi/LiFi indoor networking: From theory to practice Opt. Switch. Netw. (IF 1.828) Pub Date : 2022-07-21 Mohammad Reza Ghaderi
Light fidelity (LiFi) is a wireless optical communication (WOC) technology that holds the key to solving the challenges of 5th and higher generation mobile networks. LiFi is a two-way wireless communication technology that enables high-speed transmission on both up and down links simultaneously. Today, researchers and manufacturers consider LiFi technology as an essential solution for radio frequency
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Hybrid FSO/RF networks: A review of practical constraints, applications and challenges Opt. Switch. Netw. (IF 1.828) Pub Date : 2022-07-14 Syed Agha Hassnain Mohsan, Muhammad Asghar Khan, Hussain Amjad
Radio frequency (RF) spectrum is highly occupied and adding further broadband channels to fulfill the exiting user requirements has become difficult. Optical free-space communication can be regarded a possible alternative as it offers several potential advantages such as reliable connectivity, secure link, higher data rates, and large bandwidth. Consequently, free-space optical (FSO) communication
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Power budget- and SRLG-aware cost-efficient partial protection planning models and architectures for long-reach passive optical networks Opt. Switch. Netw. (IF 1.828) Pub Date : 2022-07-08 Jitendra Gupta
In a long-reach passive optical network (LR-PON), protection for optical network units (ONUs) against their distribution fiber (DF) failures is highly desirable to ensure uninterrupted Internet access to the associated users. In the distribution section of the LR-PON, shared-risk link groups (SRLGs) are formed by DFs due to sharing fiber cables and conduits. Most of the existing SRLG-aware DF protection
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A three-dimensional measurement method for colorful objects based on intensity pre-calibration Opt. Rev. (IF 1.047) Pub Date : 2022-07-02 Qian Zhu, Hong Zhao, Zixuan Gong
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Full-parallax three-dimensional display based on light field reproduction Opt. Rev. (IF 1.047) Pub Date : 2022-07-02 Hayato Watanabe, Takuya Omura, Naoto Okaichi, Masanori Kano, Hisayuki Sasaki, Jun Arai
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Smart inverters with broadband light absorption enhancement of nanostructure plasmonic solar absorber using PSO algorithms and FDTD method Opt. Rev. (IF 1.047) Pub Date : 2022-06-29 Ali Farmani, Abdolsamad Hamidi
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Dorsal hand vein recognition based on transmission-type near infrared imaging and deep residual network with attention mechanism Opt. Rev. (IF 1.047) Pub Date : 2022-06-28 Zhenghua Shu, Zhihua Xie, Chuncheng Zhang
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Generating and converting special focal field patterns in a 4Pi focusing system illuminated by azimuthally polarized vortex beam Opt. Rev. (IF 1.047) Pub Date : 2022-06-25 Yanfang Yang, Xiyu Yan, Ying He, Huihui Duan, LuLu Li
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Traffic generation for benchmarking data centre networks Opt. Switch. Netw. (IF 1.828) Pub Date : 2022-06-18 Christopher W.F. Parsonson, Joshua L. Benjamin, Georgios Zervas
Benchmarking is commonly used in research fields, such as computer architecture design and machine learning, as a powerful paradigm for rigorously assessing, comparing, and developing novel technologies. However, the data centre network (DCN) community lacks a standard open-access and reproducible traffic generation framework for benchmark workload generation. Driving factors behind this include the
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Demodulation scheme for constant-weight codes using convolutional neural network in holographic data storage Opt. Rev. (IF 1.047) Pub Date : 2022-06-17 Shinya Kurokawa, Shuhei Yoshida
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First-principles study of InxGa1-xAs1-yPy with different compositions Opt. Rev. (IF 1.047) Pub Date : 2022-06-16 Yong Wang, Jianxin Li, Junju Zhang, Weiwei Sha, Weipeng Zhang, Yujie Du
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Theoretical and experimental guideline of optimum design of defect-inspection apparatus for transparent material using phase-shift illumination approach Opt. Rev. (IF 1.047) Pub Date : 2022-06-13 Yoshito Onishi, Yoshiho Seo, Masaoki Matsuoka, Shigeru Serikawa, Ken Tsugane
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Efficient waveguide-type four-color (red–green–blue–infrared) laser beam combiner for compact laser beam scanning image projectors Opt. Rev. (IF 1.047) Pub Date : 2022-06-10 Akira Nakao, Shoji Yamada, Toshio Katsuyama
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Routing and spectrum assignment employing long short-term memory technique for elastic optical networks Opt. Switch. Netw. (IF 1.828) Pub Date : 2022-06-01 Lina Cheng, Yang Qiu
With the prevalence of some high bandwidth-demanding applications, such as cloud computing, traditional wavelength-division-multiplexing passive optical networks have difficulties in satisfying such growing bandwidth demands due to its limited allocation-flexibility and utilization-efficiency. Therefore, elastic optical networks (EONs). In order to realize the flexibility in EONs, sophisticated routing
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Performance and challenges of Bi-directional resource allocation in multi-core space division multiplexing elastic optical networks Opt. Switch. Netw. (IF 1.828) Pub Date : 2022-06-02 Abdul Wadud, Anas Basalamah
In space division multiplexing-elastic optical networks (SDM-EONs), crosstalk and fragmentation are the significant factors determining overall resource utilization. Crosstalk and fragmentation management spectral resource allocation schemes can enhance the overall resource utilization in SDM-EONs. This paper proposes three crosstalk and fragmentation management bi-directional resource allocation schemes
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“RNDM 2019 selected papers” special issue Opt. Switch. Netw. (IF 1.828) Pub Date : 2022-05-26 G. Ellinas, T. Panayiotou
Abstract not available
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A dual-hop topology-aware routing protocol for underwater optical wireless sensor networks Opt. Switch. Netw. (IF 1.828) Pub Date : 2022-05-23 Yinkang Dai, Jing Ji, Yang Qiu
Underwater optical wireless communication (UOWC) is an emerging technology for underwater wireless sensor networks (UWSNs). Compared with acoustic waves and radio frequency waves, optical waves can provide higher data rates and lower latency. However, given the limited transmission range and energy supply, as well as the existence of communication void regions in UOWC which may further deteriorate
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DROAD: Demand-aware reconfigurable optically-switched agile data center network Opt. Switch. Netw. (IF 1.828) Pub Date : 2022-05-26 Bartlomiej Siniarski, Dinh Danh Le, Conor McArdle, John Murphy, Liam Barry
We present a Demand-aware Reconfigurable Data Center Network architecture design (DROAD) with integrated fast-switching optics and space switches that allows dynamic reconfiguration and separation of intra- and inter-cluster connections. The performance analysis results show a 64% improvement in average Flow Completion Time and a significant reduction in TCP session time, as well as a reduced number
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Effect of the cut ratio of selective yellow-cut lenses on contrast sensitivity Opt. Rev. (IF 1.047) Pub Date : 2022-05-17 Tomoya Handa, Shuji Nakatsuka, Hirotaka Ito
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Design method of soft X-ray and vacuum ultraviolet optical system based on plane-symmetric aberration theory Opt. Rev. (IF 1.047) Pub Date : 2022-05-17 Yiqing Cao
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QoS-aware hybrid cloudlet placement over joint fiber and wireless backhaul access network Opt. Switch. Netw. (IF 1.828) Pub Date : 2022-05-18 Chao He, Ruyan Wang, Dapeng Wu, Hong Zhang, Zefu Tan
Over the last decades, the emerging paradigms, e.g., centralized mobile cloud computing (MCC), multi-access edge computing (MEC), and collaborative computing offloading (CCO), have attracted extensive attention in adaptive 5G low latency communication for Tactile Internet. Besides, a novel integrated wireless optical transport network emerges in access networks and supports joint fronthaul and backhaul
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Editorial test of time Opt. Switch. Netw. (IF 1.828) Pub Date : 2022-05-16 Admela Jukan, Martin Reisslein, Andrea Bianco, George Rouskas
Abstract not available
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Scattering imaging of biomolecules with metallic nanoparticles: localization precision, imaging speed, and multicolor imaging capability Opt. Rev. (IF 1.047) Pub Date : 2022-05-16 Jun Ando
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A theory of reflection and refraction of light by a metal Opt. Rev. (IF 1.047) Pub Date : 2022-05-12 Koichi Katsumata
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Software-defined optical intra-data center network and access control Strategy Opt. Switch. Netw. (IF 1.828) Pub Date : 2022-05-06 P.A. Baziana, G. Drainakis, E. Sykas
The continuously emerging cloud services provide an unprecedented traffic growth into the large-scale data centers (DCs) globally. In this paper, we introduce an optical DC network (DCN) architecture to organize the servers into computing clusters. Since a high percentage of the total DCΝ traffic is served within a cluster, we assume two distinct networks: the intra-cluster passive optical network
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Thermal properties of AlN–Ce:YAG composite ceramic phosphor for laser lighting Opt. Rev. (IF 1.047) Pub Date : 2022-05-05 Takuya Sawada, Hiroshi Fuji, Kenta Yagasaki, Kana Fujioka, Hisashi Minemoto, Kazuhisa Yamamoto
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Founding AP's IVM and related IHM for subway LiFi network Opt. Switch. Netw. (IF 1.828) Pub Date : 2022-04-29 Xiaoqi Wang, Chaoqin Gan, Shibao Wu, Yitong Chen, Yixin Chen
In this paper, the information value model (IVM) of an access point (AP) and the related intelligent handover model (IHM) are firstly founded in the subway light-fidelity (LiFi) network. At first, based on statistical methods, the IVM is created by analyzing the behavioral characteristics of subway passengers. By the IVM, the probability of user access to each AP can be successfully predicted. Next
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A novel fast 3D measurement method based on phase-coded fringe projection Opt. Rev. (IF 1.047) Pub Date : 2022-05-03 Tian Shiyang, Fu Yanjun, Gui Jiannan, Ma Baiheng, Yan Zhanjun
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Precise retinal shape measurement by alignment error and eye model calibration Opt. Rev. (IF 1.047) Pub Date : 2022-04-29 Kseniya Palchunova, Toshihiro Mino, Toshifumi Mihashi, Jonathan Liu, Kuniharu Tasaki, Yumi Hasegawa, Takahiro Hiraoka, Tetsuro Oshika
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Improving resolution of lensless imaging with higher harmonics of Fresnel zone aperture Opt. Rev. (IF 1.047) Pub Date : 2022-04-28 Kazuyuki Tajima, Yusuke Nakamura, Keita Yamaguchi, Takeshi Shimano
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Extraction information of moiré fringes based on Gabor wavelet Opt. Rev. (IF 1.047) Pub Date : 2022-04-28 Ya-yi Chen, Yun-yun Chen, Wei-hao Cheng, Meng Xu, Jun-yan Zhuang
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Rotational freedom thin‐film solar cell using a reconfigurable nano‐antenna with 4‐Dimethyl‐Amino‐N‐methyl‐4‐Stilbazolium Tosylate IET Optoelectron. (IF 1.691) Pub Date : 2022-04-25 Mohammad Ali Shameli,Mohammad Reza Eskandari,Reza Safian
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Facial expression recognition based on anomaly feature Opt. Rev. (IF 1.047) Pub Date : 2022-04-18 Kan Hong
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Neural network-assisted decision-making for adaptive routing strategy in optical datacenter networks Opt. Switch. Netw. (IF 1.828) Pub Date : 2022-04-21 Yuanyuan Hong, Xuezhi Hong, Jiajia Chen
To improve the blocking probability (BP) performance and enhance the resource utilization, a correct decision of routing strategy which is most adaptable to the network configuration and traffic dynamics is essential for adaptive routing in optical datacenter networks (DCNs). A neural network (NN)-assisted decision-making scheme is proposed to find the optimal routing strategy in optical DCNs by predicting
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Random bit sequence generation from speckle patterns produced with multimode waveguides IET Optoelectron. (IF 1.691) Pub Date : 2022-04-12 Lília Maria Santos Dias,Tiago Filipe Santos Silvério,Rute Amorim Sá Ferreira,Paulo Sérgio Brito André
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Experimental study on frequency doubling of Q-switched partially coherent laser Opt. Rev. (IF 1.047) Pub Date : 2022-04-04 Kaiyuan Wang, Yushuang Wang, Guowen Zhang, Ziyang Chen, Jixiong Pu
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Distributed feedback fiber laser-based broadband air acoustic sensor using PI film and PEEK shell structure Opt. Rev. (IF 1.047) Pub Date : 2022-03-28 Ying-Ying Wang, Chang Wang, Shi-Wei Zhao, Fa-Xiang Zhang, Shu-Juan Li, Xiao-Mei Ma
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The 12th International Conference on Optics-Photonics Design & Fabrication (ODF'20 in 2021), Taoyuan, Taiwan. Opt. Rev. (IF 1.047) Pub Date : 2022-03-25 Kenji Konno
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Design of a hexagonal outlined porous cladding with vacant core photonic crystal fibre biosensor for cyanide detection at THz regime IET Optoelectron. (IF 1.691) Pub Date : 2022-03-14 Mohammad Rakibul Islam,Ahmed Mujtaba Al Naser,Fatema Zerin Jaba,Fariha Anzum,Abu Nayeem Mohammad Iftekher,Md Rezaul Hoque Khan,Mirza Muntasir Nishat
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Simulation of mid-air images using combination of physically based rendering and image processing Opt. Rev. (IF 1.047) Pub Date : 2022-03-14 Ayami Hoshi, Shunji Kiuchi, Naoya Koizumi
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Inverse design of a high‐quality factor multi‐purpose optical biosensor IET Optoelectron. (IF 1.691) Pub Date : 2022-03-10 Majid Mafi,Amir Hosn Esmaile
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Batch skeleton extraction from ESPI fringe patterns using pix2pix conditional generative adversarial network Opt. Rev. (IF 1.047) Pub Date : 2022-03-10 Huaying Wang, Zijian Zhang, Qiaofen Zhu, Xue Wang, Zhao Dong, Gaofu Men, Jieyu Wang, Jialiang Lei, Wenjian Wang
The key to measurement by electronic speckle pattern interferometry (ESPI) is to obtain accurate phase information from the ESPI fringe patterns. We propose a fast batch skeleton extraction method for ESPI fringe patterns using the pix2pix conditional generative adversarial network (pix2pix cGAN). The network is trained by ESPI fringe patterns and complete skeleton images, and the trained network can
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ILP models and improved methods for the problem of routing and spectrum allocation Opt. Switch. Netw. (IF 1.828) Pub Date : 2022-03-07 Jiading Wang, Maiko Shigeno, Qian Wu
Elastic Optical Networks (EONs) using a flexible wavelength allocation technique with smaller granularity of spectrum can improve the efficiency and flexibility for diverse traffic transmission. However, due to the small granularity in EONs, the resource allocation problems become more complicated than that of the existing network architecture. By classifying the integer linear programming (ILP) models
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A single backlit image enhancement method by image fusion with a weight map for improvement of dark area’s visibility Opt. Rev. (IF 1.047) Pub Date : 2022-03-07 Masato Akai, Yoshiaki Ueda, Takanori Koga, Noriaki Suetake
Images captured in backlit conditions (i.e., backlit images) often have a vast difference in lightness between bright and dark areas. In such a dark area in an image, the visibility becomes extremely low, making it indistinct to recognize the subject. Sufficient image quality cannot be obtained by simply applying a general image enhancement method to such a backlit image. Many methods specializing
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Multispectral image sensor attachable to low-cost microcomputers Opt. Rev. (IF 1.047) Pub Date : 2022-03-01 Yasuo Ohtera, Airi Sato, Takayuki Kawashima, Tomohisa Takaya, Yuki Okura
Multi-spectral filter array composed of a wavy alternating dielectric multilayer was integrated on a CMOS image sensor of the Raspberry Pi HQ Camera. The filter array consists of 16-channel elementary filters exhibiting pseudo-random transmission characteristics. Each filter covers \(20\times 20\) CMOS pixels. The incoming spectrum is encoded as a set of 16 grayscale intensities and passed to principal
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Sequel to “cubic‐quartic optical soliton perturbation with complex Ginzburg–Landau equation by the enhanced Kudryashov's method” IET Optoelectron. (IF 1.691) Pub Date : 2022-02-26 Ahmed H. Arnous,Anjan Biswas,Abdul H. Kara,Daniela Milovic,Yakup Yıldırım,Hashim M. Alshehri
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Tunable comb-like optical transmission spectrum resulting from equilateral polygonal networks Opt. Rev. (IF 1.047) Pub Date : 2022-02-18 Xiaohui Xu, Yu Wang, Jiamin Ye
The photonic band structures of waves in configuration-periodic equilateral polygonal networks (EPNs) are studied in the paper. The results indicate that comb-like optical transmission spectrum can be realized by EPNs.The number, width, and range of continuous equidistant frequency bands can be controlled conveniently by adjusting the waveguide length and the unit cell numbers of upper arm. Those comb-like
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Research on three-core photonic crystal fiber plasmonic sensor based on surface plasmon resonance with three V-groove microfluidic channel Opt. Rev. (IF 1.047) Pub Date : 2022-02-16 Shengxi Jiao, Xinzhi Li, Xiaolei Ren, Hanrui Yang, Shibo Xu
A three-core photonic crystal fiber (PCF) sensor based on surface plasmon resonance (SPR) has been designed with silver film coated on the inner wall of a microfluidic detection channel with three V-grooves. The coupling characteristics and sensing properties of the proposed sensor are analyzed numerically using the full vector finite element method (FEM). The loss spectra and the sensing performance
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A Novel Dynamic Bandwidth Allocation Scheme for XGPON based Mobile Fronthaul for Small Cell CRAN Opt. Switch. Netw. (IF 1.828) Pub Date : 2022-02-08 Garima, Vivekanand Jha, Rakesh Kumar Singh
Time division multiplexing passive optical networks (TDM-PON) have emerged as a promising technology for mobile fronthaul for small cell CRAN. The performance of such TDM-based PON mobile fronthaul for small cell CRAN greatly depends on efficient dynamic bandwidth allocation (DBA) mechanisms. In this paper, a novel DBA mechanism based on the concept of dynamic service interval for ITU-based TDM-PON
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Improvement of the distortion of aerial displays and proposal for utilizing distortion to emulate three-dimensional aerial image Opt. Rev. (IF 1.047) Pub Date : 2022-02-03 Kosuke Inoue, Masaki Yasugi, Hirotsugu Yamamoto, Nao Ninomiya
This paper evaluates the spatial distortion of aerial image and proposes a novel optical design to utilize the distortion as visual expression. Our optical system is based on aerial imaging by retro-reflection (AIRR). Using acrylic plate as beam splitter, a clear aerial image can be obtained at low cost. However, when upsizing the device, there is a problem that aerial image was distorted because the
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Improvement of color rendering index of BGYR laser illuminants Opt. Rev. (IF 1.047) Pub Date : 2022-02-03 Yoshio Manabe, Masato Ishino, Hiroshi Fuji, Junichi Kinoshita, Kana Fujioka, Kazuhisa Yamamoto
Laser-driven phosphor conversion (PC)-type white light sources are receiving a great deal of attention in next-generation high-intensity lighting and display technologies. Laser lighting is attracting attention for its functions, such as energy saving and light distribution control. However, the PC-type white light source has problems with color control and thermal quenching. Thus, monochromatic light
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Spectrum slicing-based fragmentation aware routing and spectrum allocation in elastic optical networks Opt. Switch. Netw. (IF 1.828) Pub Date : 2022-01-31 Huanlin Liu, Jie Ren, Yong Chen, Junling Hu, Chang Tang, Mingming Tang
For addressing the problems of high bandwidth blocking probability and low spectrum utilization caused by spectrum fragmentation in elastic optical networks (EONs), a dynamic EONs node architecture for deploying spectrum slicer is studied to transmit the request in the paper. The spectrum slicer can relax spectrum contiguity and improve spectrum fragmentation utilization for request's lightpath establishing
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Vibration discrimination based upon multifractal spectrum and improved probabilistic neural network in the dual Mach–Zehnder interferometric perimeter system Opt. Rev. (IF 1.047) Pub Date : 2022-01-30 Meng Li, Jiaxin Li, Xinglong Xiong, Yifei Zhao, Yuzhao Ma
For improving the performance of vibration discrimination in terms of dual Mach–Zehnder interferometric (DMZI) perimeter system, we proposed a novel method based upon the multifractal theory, serial feature fusion as well as improved probabilistic neural network (PNN). By the multifractal theory, the features of original signal are extracted in the form of multifractal spectrum parameters, thereby
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Improvement of apparent resolution by subjective super-resolution display for aerial display using AIRR Opt. Rev. (IF 1.047) Pub Date : 2022-01-29 Kojiro Matsushita, Masaki Yasugi, Akinori Tsuji, Toyotaro Tokimoto, Hirotsugu Yamamoto
AIRR (Aerial imaging by retro-reflection) can form a large aerial image in mid-air for digital signage. Resolution of the aerial image formed with AIRR is determined mainly by the retro-reflector, which is one of its components. However, increasing the resolution of aerial images by increasing the density of retro-reflective elements poses physical limitations and cost increases. The purpose of this