光通信研究最新文献

Vector indexing algorithm for post processing of OTDR data 面向OTDR数据后处理的矢量索引算法

光通信研究 Pub Date : 2013-07-10 DOI: 10.1109/NOC-OCI.2013.6582860

M. Usama, M. S. Sheikh

引用次数: 3

Toward a control and management system enabling cognitive optical networks 实现认知光网络的控制和管理系统

光通信研究 Pub Date : 2013-07-10 DOI: 10.1109/NOC-OCI.2013.6582895

D. Siracusa, Attilio Broglio, A. Francescon, A. Zanardi, E. Salvadori

引用次数: 2

Photonic crystal fiber gas sensor for using in optical network protection systems 用于光网络保护系统的光子晶体光纤气体传感器

光通信研究 Pub Date : 2013-07-10 DOI: 10.1109/NOC-OCI.2013.6582886

Ali R. Naraghi, S. Olyaee, A. Najibi, E. Leitgeb

引用次数: 10

Implementation of a measurement system for analysing the spectral radiation pattern of light sources with low divergence 一种用于分析低发散光源光谱辐射图的测量系统的实现

光通信研究 Pub Date : 2013-07-10 DOI: 10.1109/NOC-OCI.2013.6582898

Nacira Stiebler, P. Pezzei, A. Merdonig, E. Leitgeb

{"title":"Implementation of a measurement system for analysing the spectral radiation pattern of light sources with low divergence","authors":"Nacira Stiebler, P. Pezzei, A. Merdonig, E. Leitgeb","doi":"10.1109/NOC-OCI.2013.6582898","DOIUrl":"https://doi.org/10.1109/NOC-OCI.2013.6582898","url":null,"abstract":"For the verification of Free Space Optics (FSO) systems it is common to determine optical power measured depending on illuminated area at a certain wavelength. In the context of this work a new measurement system was developed, which is able to measure not only the optical power but also the complete spectral distribution of the light beam. FSO is becoming more and more important, because of the high usable bandwidth (leading to high data-rates) in optics compared to radio frequency (RF). The measurement system consists of a mechanical structure, where a collimator is mounted on. This collimator can be moved in two dimensions to enable the measurement of predefined points. It is connected with a spectrum analyzer using an optical fiber. A computer controls the position of the collimator and initiates the spectrum analyzer to record the spectral curves, the maximum peak of power, the -3dB bandwidth and the total power of spectrum. The obtained data covers a measurement area of 0.91 m by 0.77 m which can be surveyed at a high local resolution of 0.7 mm. Collimated beams in the range between 600 and 1750 nm are analysed.","PeriodicalId":57196,"journal":{"name":"光通信研究","volume":"23 1","pages":"269-274"},"PeriodicalIF":0.0,"publicationDate":"2013-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78782062","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

Optoelectronic integrated circuit for indoor optical wireless communication with adjustable beam 一种可调光束室内光无线通信的光电集成电路

光通信研究 Pub Date : 2013-07-10 DOI: 10.1109/NOC-OCI.2013.6582881

P. Brandl, H. Zimmermann

引用次数: 2

Performance of WDM networks with photonic switching and resource distribution planning 具有光子交换和资源分配规划的WDM网络性能

光通信研究 Pub Date : 2013-07-10 DOI: 10.1109/NOC-OCI.2013.6582896

I. B. Martins, G. Pérez-Sánchez, P. Gallion, Felipe Rudge, E. Moschim

{"title":"Performance of WDM networks with photonic switching and resource distribution planning","authors":"I. B. Martins, G. Pérez-Sánchez, P. Gallion, Felipe Rudge, E. Moschim","doi":"10.1109/NOC-OCI.2013.6582896","DOIUrl":"https://doi.org/10.1109/NOC-OCI.2013.6582896","url":null,"abstract":"This article evaluates the performance of Wavelength Division Multiplex (WDM) networks considering two different modes of photonic Switching: Optical Packet Switching (OPS) and Optical Circuit Switching (OCS). A resource distribution planning is proposed including wavelength/amplifier allocation to improve the blocking probability and to ensure signal quality. The present study considered the effects of signal attenuation and dispersion in mesh topology networks, and the actual utilization of each network link for the distribution of wavelengths and amplifiers. The physical network parameters considered had average diameter and average distance, as well as ASE noise accumulation and channel cross-talk. In order to evaluate and compare the performance between WDM-OCS and WDM-OPS, the following parameters were analyzed: delay (latency), blocking probability, and effective network-capacity utilization. Results show a reduction of blocking probability with a small increase in latency in both OCS and OPS, but the WDM-OPS combination presents results with very positive impact. Work was carried out with both analytic modeling and computer simulations.","PeriodicalId":57196,"journal":{"name":"光通信研究","volume":"4 1","pages":"241-248"},"PeriodicalIF":0.0,"publicationDate":"2013-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90282153","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

Impact evaluation of physical length of shared risk link groups on optical network availability using Monte Carlo simulation 共享风险链路组物理长度对光网络可用性影响的蒙特卡罗模拟评价

光通信研究 Pub Date : 2013-07-10 DOI: 10.1109/NOC-OCI.2013.6582897

V. Miletić, B. Mikac, M. Dzanko

{"title":"Impact evaluation of physical length of shared risk link groups on optical network availability using Monte Carlo simulation","authors":"V. Miletić, B. Mikac, M. Dzanko","doi":"10.1109/NOC-OCI.2013.6582897","DOIUrl":"https://doi.org/10.1109/NOC-OCI.2013.6582897","url":null,"abstract":"In optical networks a group of logically distinct links can unintentionally share a physical resource (e.g, a cable or a duct). Such a group, called shared risk link group (SRLG), introduces a situation where a single failure of common resource can cause multiple failures. Failure of common resource usually occurs due to physical force (e.g, digging or earthquake) and causes failures of multiple links. Specifically, such a failure can cause both working and spare wavelength path of a logical connection between two edge nodes to fail at the same time, leaving them disconnected until a repair is done. The usual approach to solving this problem consists of introducing more spare capacity to the network and also using a routing algorithm that takes SRLGs into account when computing paths. Such a routing algorithm avoids creating working and spare path pairs that have links contained in the same SRLG, to minimize the negative impact of SRLG failure on logical connection availability. In this paper the impact of physical length of the SRLGs on network availability is evaluated using Monte Carlo simulation. New simulation model for availability evaluation is implemented by discrete-event network simulator ns-3. Implementation approach is discussed, and an overview of model features is provided. For simple cases, Monte Carlo simulation results obtained by using the model are compared to analytical results. The availability results for the general case are obtained using Monte Carlo simulation and discussed.","PeriodicalId":57196,"journal":{"name":"光通信研究","volume":"121 1","pages":"249-256"},"PeriodicalIF":0.0,"publicationDate":"2013-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76689870","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: 4

Monte-Carlo-based method for group delay ripple reduction in cascaded dispersion compensation FBGs 基于蒙特卡罗的级联色散补偿光纤光栅群延迟纹波减小方法

光通信研究 Pub Date : 2013-07-10 DOI: 10.1109/NOC-OCI.2013.6582885

I. Aldaya, E. Giacoumidis, S. Tsyier, A. Tsokanos, Zabih Ghassemlooy, I. B. Martins, G. Pérez-Sánchez, Ioannis Tomkos

引用次数: 1

Experimental evaluation of 40 Gb/s NRZ-DQPSK data amplification using a semiconductor optical amplifier 利用半导体光放大器实现40gb /s NRZ-DQPSK数据放大的实验评估

光通信研究 Pub Date : 2013-07-10 DOI: 10.1109/NOC-OCI.2013.6582862

L. Krzczanowicz, M. Connelly

引用次数: 0

Availability improvement of free-space optical and microwave communications links — A diversity system 自由空间光通信和微波通信链路的可用性改进。分集系统

光通信研究 Pub Date : 2013-07-10 DOI: 10.1109/NOC-OCI.2013.6582866

P. Kantor, L. Csurgai-Horváth, J. Bitó

{"title":"Availability improvement of free-space optical and microwave communications links — A diversity system","authors":"P. Kantor, L. Csurgai-Horváth, J. Bitó","doi":"10.1109/NOC-OCI.2013.6582866","DOIUrl":"https://doi.org/10.1109/NOC-OCI.2013.6582866","url":null,"abstract":"Free-space optical (FSO) and microwave telecommunication links have considerably adverse propagation characteristics. For radio waves that are operating in the millimeter wavelength one of the most harmful circumstantial factors is the attenuation caused by precipitation, especially by rain. However, for FSO links the main adverse effect is fog, being most responsible for the unavailability of FSO links. These adverse propagation characteristics allow good efficiency for a site diversity system that consists of parallel FSO and millimeterwave links. In order to study the propagation characteristics of these types of links a measurement system is operating at Budapest University of Technology and Economics, Department of Broadband Infocommunicatons and Electromagnetic Theory (BME-HVT). In this paper the efficiency of a parallel FSO-microwave site diversity system is presented on the basis of the results of the measurement system. The outage probabilities of the FSO and microwave links are compared to the outage probability of the diversity system. Moreover, the possibility of microwave transmitter power reduction is investigated as well in case of the application of the hybrid diversity system.","PeriodicalId":57196,"journal":{"name":"光通信研究","volume":"12 1","pages":"43-48"},"PeriodicalIF":0.0,"publicationDate":"2013-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79424379","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