Pub Date : 2008-06-22DOI: 10.1109/ICTON.2008.4598578
L. Wosinski, B. Jaskorzyńska
In this talk we will discuss issues related to technology for dense photonic integration based on silicon platform, and review two alternatives to achieve this goal within the diffraction limit; photonic nanowires and photonic crystal waveguides. We will also present examples of our demonstrators to illustrate the feasibility of photonic wires for device miniaturization and benefits offered by photonic crystal dispersion.
{"title":"Silicon technology for photonic crystal- and nanowire devices","authors":"L. Wosinski, B. Jaskorzyńska","doi":"10.1109/ICTON.2008.4598578","DOIUrl":"https://doi.org/10.1109/ICTON.2008.4598578","url":null,"abstract":"In this talk we will discuss issues related to technology for dense photonic integration based on silicon platform, and review two alternatives to achieve this goal within the diffraction limit; photonic nanowires and photonic crystal waveguides. We will also present examples of our demonstrators to illustrate the feasibility of photonic wires for device miniaturization and benefits offered by photonic crystal dispersion.","PeriodicalId":230802,"journal":{"name":"2008 10th Anniversary International Conference on Transparent Optical Networks","volume":"182 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131852119","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}
Pub Date : 2008-06-22DOI: 10.1109/ICTON.2008.4598800
M. Najjar, H. Rezig
This paper describes the technical issues of access and metro networks based on wavelength division multiplexing (WDM) and spectrum slicing technologies, some solutions, proposed. A WDM ring access network with tunable optical network units (ONUs) is proposed. For optimising the system, many parameters (code type, bitrate, tunable filter bandwidth, multiplexer bandwidth, ...etc) are studied. The quality of the received signal is characterised by the simulation of bet error ratio BER. Four remote nodes with four ONUs are studied and simulated with different distances between the centre node and RNs. Therefore the maximum distance can be achieved to 60 km by keeping BER under 10-9.
{"title":"Optimisation of ring metro network by using spectrum slicing method","authors":"M. Najjar, H. Rezig","doi":"10.1109/ICTON.2008.4598800","DOIUrl":"https://doi.org/10.1109/ICTON.2008.4598800","url":null,"abstract":"This paper describes the technical issues of access and metro networks based on wavelength division multiplexing (WDM) and spectrum slicing technologies, some solutions, proposed. A WDM ring access network with tunable optical network units (ONUs) is proposed. For optimising the system, many parameters (code type, bitrate, tunable filter bandwidth, multiplexer bandwidth, ...etc) are studied. The quality of the received signal is characterised by the simulation of bet error ratio BER. Four remote nodes with four ONUs are studied and simulated with different distances between the centre node and RNs. Therefore the maximum distance can be achieved to 60 km by keeping BER under 10-9.","PeriodicalId":230802,"journal":{"name":"2008 10th Anniversary International Conference on Transparent Optical Networks","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134594760","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}
Recent progress of optical code processing technology is explained. Ultra-high speed time domain, spectral domain, hybrid domain, and multiple optical code processing devices and systems are shown. As application of these technologies, OCDMA-PON, OPS network, and terahertz optical clock generation are demonstrated.
{"title":"Optical code processing system, device, and its application","authors":"N. Wada","doi":"10.4304/jnw.5.2.242-250","DOIUrl":"https://doi.org/10.4304/jnw.5.2.242-250","url":null,"abstract":"Recent progress of optical code processing technology is explained. Ultra-high speed time domain, spectral domain, hybrid domain, and multiple optical code processing devices and systems are shown. As application of these technologies, OCDMA-PON, OPS network, and terahertz optical clock generation are demonstrated.","PeriodicalId":230802,"journal":{"name":"2008 10th Anniversary International Conference on Transparent Optical Networks","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114288782","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}
Pub Date : 2008-06-22DOI: 10.1109/ICTON.2008.4598689
C. Ferrari, F. Morichetti, L. Flaccadori, A. Melloni
Reconfigurable architectures based on bi-dimensional arrays of integrated ring-resonators (RRs), also known as resonant routers (ReRs), are good candidates for implementing advanced routing and switching operations in both WDM and access optical networks. ReRs provide high flexibility, full reconfigurability and the capability of handling many WDM optical channels in small footprint devices. In this contribution, we demonstrate experimentally that the bandwidth of a ReR can be significantly narrowed with respect to the signal bandwidth, while corrupting neither the signal quality nor the crosstalk between routed channels. To this aim, a small frequency detuning between the signal carrier and the ReRpsilas frequency response is introduced. In this condition, the frequency chirp provided by the RRs dispersion can also be exploited to make the transmitted signals more robust against fiber chromatic dispersion. The routing of two intensity modulated 2.5 Gbit/s and 10 Gbit/s NRZ channels through a 2times2 integrated ReR with 4 GHz bandwidth is reported and the signal quality after propagation through several spans of optical fiber is evaluated.
{"title":"Chromatic dispersion compensation in a ring resonator wavelength router","authors":"C. Ferrari, F. Morichetti, L. Flaccadori, A. Melloni","doi":"10.1109/ICTON.2008.4598689","DOIUrl":"https://doi.org/10.1109/ICTON.2008.4598689","url":null,"abstract":"Reconfigurable architectures based on bi-dimensional arrays of integrated ring-resonators (RRs), also known as resonant routers (ReRs), are good candidates for implementing advanced routing and switching operations in both WDM and access optical networks. ReRs provide high flexibility, full reconfigurability and the capability of handling many WDM optical channels in small footprint devices. In this contribution, we demonstrate experimentally that the bandwidth of a ReR can be significantly narrowed with respect to the signal bandwidth, while corrupting neither the signal quality nor the crosstalk between routed channels. To this aim, a small frequency detuning between the signal carrier and the ReRpsilas frequency response is introduced. In this condition, the frequency chirp provided by the RRs dispersion can also be exploited to make the transmitted signals more robust against fiber chromatic dispersion. The routing of two intensity modulated 2.5 Gbit/s and 10 Gbit/s NRZ channels through a 2times2 integrated ReR with 4 GHz bandwidth is reported and the signal quality after propagation through several spans of optical fiber is evaluated.","PeriodicalId":230802,"journal":{"name":"2008 10th Anniversary International Conference on Transparent Optical Networks","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114291769","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}
Pub Date : 2008-06-22DOI: 10.1109/ICTON.2008.4598610
K. Král
Theoretical results are presented on the electronic transport in the open zero-dimensional nanostructure, or a nanotransistor, in which we demonstrate the manifestation of the effect of the upconversion of the electronic energy level occupation. The self-consistent Born approximation is used to the electron-phonon interaction in a quantum dot. The well-known simple Toy Model of Supprio Datta is used for the description of a nanotransistor. We show that in an asymmetric nanodevice one can obtain a spontaneous potential step generation between the electric contacts of such a device. This will be documented numerically on a nanotransistor model in which the active region of the nanotransistor is a quantum dot having two electronic bound states. The effect can be important for the information processing using nanostructures.
{"title":"Spontaneous current and voltage generation in gated quantum dot structures","authors":"K. Král","doi":"10.1109/ICTON.2008.4598610","DOIUrl":"https://doi.org/10.1109/ICTON.2008.4598610","url":null,"abstract":"Theoretical results are presented on the electronic transport in the open zero-dimensional nanostructure, or a nanotransistor, in which we demonstrate the manifestation of the effect of the upconversion of the electronic energy level occupation. The self-consistent Born approximation is used to the electron-phonon interaction in a quantum dot. The well-known simple Toy Model of Supprio Datta is used for the description of a nanotransistor. We show that in an asymmetric nanodevice one can obtain a spontaneous potential step generation between the electric contacts of such a device. This will be documented numerically on a nanotransistor model in which the active region of the nanotransistor is a quantum dot having two electronic bound states. The effect can be important for the information processing using nanostructures.","PeriodicalId":230802,"journal":{"name":"2008 10th Anniversary International Conference on Transparent Optical Networks","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114425711","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}
Pub Date : 2008-06-22DOI: 10.1109/ICTON.2008.4598651
N. Skorin-Kapov, J. Chen, L. Wosinska
Attacks in Transparent Optical Networks present a serious security threat to successful network operation due to the high data rates involved and the vulnerabilities associated with transparency. Typical physical layer attacks can involve injecting high-powered jamming signals on legitimate data channels to exploit vulnerabilities in optical components such as crosstalk in switches and fibers, and gain competition in amplifiers. To assure a certain quality of service in the network, we propose a novel approach which considers such security threats during the network planning process. More specifically, we propose a tabu search heuristic aimed to perform lightpath routing in such a way as to minimize the possible dasiareachabilitypsila of a jamming attack with respect to gain competition and inter-channel crosstalk. In this way we limit the worst case scenario which can potentially be caused by such an attack. We tested the algorithm on the 14-node NSF network and compare with shortest path routing. The algorithm not only yields better attack protection, but reduces lightpath congestion and minimizes the upper bound on the number of wavelengths needed for wavelength assignment.
{"title":"A tabu search algorithm for attack-aware lightpath routing","authors":"N. Skorin-Kapov, J. Chen, L. Wosinska","doi":"10.1109/ICTON.2008.4598651","DOIUrl":"https://doi.org/10.1109/ICTON.2008.4598651","url":null,"abstract":"Attacks in Transparent Optical Networks present a serious security threat to successful network operation due to the high data rates involved and the vulnerabilities associated with transparency. Typical physical layer attacks can involve injecting high-powered jamming signals on legitimate data channels to exploit vulnerabilities in optical components such as crosstalk in switches and fibers, and gain competition in amplifiers. To assure a certain quality of service in the network, we propose a novel approach which considers such security threats during the network planning process. More specifically, we propose a tabu search heuristic aimed to perform lightpath routing in such a way as to minimize the possible dasiareachabilitypsila of a jamming attack with respect to gain competition and inter-channel crosstalk. In this way we limit the worst case scenario which can potentially be caused by such an attack. We tested the algorithm on the 14-node NSF network and compare with shortest path routing. The algorithm not only yields better attack protection, but reduces lightpath congestion and minimizes the upper bound on the number of wavelengths needed for wavelength assignment.","PeriodicalId":230802,"journal":{"name":"2008 10th Anniversary International Conference on Transparent Optical Networks","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115498774","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}
Pub Date : 2008-06-22DOI: 10.1109/ICTON.2008.4598384
S. Hann, J. Eom, M. Thollabandi, Chang-Soo Park
A next generation optical access networks with a function of bilateral adaptable architecture is proposed and demonstrated. The hybrid-PON service is successfully demonstrated by both E-PON and WDM-PON with a simple uni-architecture of remote node. Furthermore, the hybrid-PON service can diagnose the health of the service with the monitoring technology in service state with the low-cost solutions.
{"title":"Hybrid-PON service with both PS-PON and WDM-PON for next generation optical access networks","authors":"S. Hann, J. Eom, M. Thollabandi, Chang-Soo Park","doi":"10.1109/ICTON.2008.4598384","DOIUrl":"https://doi.org/10.1109/ICTON.2008.4598384","url":null,"abstract":"A next generation optical access networks with a function of bilateral adaptable architecture is proposed and demonstrated. The hybrid-PON service is successfully demonstrated by both E-PON and WDM-PON with a simple uni-architecture of remote node. Furthermore, the hybrid-PON service can diagnose the health of the service with the monitoring technology in service state with the low-cost solutions.","PeriodicalId":230802,"journal":{"name":"2008 10th Anniversary International Conference on Transparent Optical Networks","volume":"60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122051105","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}
Pub Date : 2008-06-22DOI: 10.1109/ICTON.2008.4598756
K. Langer, J. Grubor, O. Bouchet, M. El Tabach, J. Walewski, S. Randel, M. Franke, S. Nerreter, D. O'Brien, G. Faulkner, I. Neokosmidis, G. Ntogari, M. Wolf
As a part of the EU-FP7 R&D programme, the OMEGA project (hOME Gigabit Access) aims at bridging the gap between mobile broadband terminals and the wired backbone network in homes. To provide Gb/s connectivity a combination of various technologies is considered. Beside radio frequencies, the wireless links will use infrared and visible light. Combined with power-line communications this enables a home area network (HAN) that meets the vision of broadband home networking dasiawithout new wirespsila. A technology-independent MAC layer is foreseen to control such network and to provide services as well as connectivity to any device the user wishes to connect. Moreover, this MAC layer should allow the service to follow the user from device to device in any room of a building /apartment. The contribution presents ideas and approaches for broadband optical wireless (OW) communications using infrared Gb/s hotspots and 100 Mb/s information broadcasting by means of interior lighting based on white-light LEDs. Important issues concerning the physical layer are discussed.
{"title":"Optical wireless communications for broadband access in home area networks","authors":"K. Langer, J. Grubor, O. Bouchet, M. El Tabach, J. Walewski, S. Randel, M. Franke, S. Nerreter, D. O'Brien, G. Faulkner, I. Neokosmidis, G. Ntogari, M. Wolf","doi":"10.1109/ICTON.2008.4598756","DOIUrl":"https://doi.org/10.1109/ICTON.2008.4598756","url":null,"abstract":"As a part of the EU-FP7 R&D programme, the OMEGA project (hOME Gigabit Access) aims at bridging the gap between mobile broadband terminals and the wired backbone network in homes. To provide Gb/s connectivity a combination of various technologies is considered. Beside radio frequencies, the wireless links will use infrared and visible light. Combined with power-line communications this enables a home area network (HAN) that meets the vision of broadband home networking dasiawithout new wirespsila. A technology-independent MAC layer is foreseen to control such network and to provide services as well as connectivity to any device the user wishes to connect. Moreover, this MAC layer should allow the service to follow the user from device to device in any room of a building /apartment. The contribution presents ideas and approaches for broadband optical wireless (OW) communications using infrared Gb/s hotspots and 100 Mb/s information broadcasting by means of interior lighting based on white-light LEDs. Important issues concerning the physical layer are discussed.","PeriodicalId":230802,"journal":{"name":"2008 10th Anniversary International Conference on Transparent Optical Networks","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124286925","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}
Pub Date : 2008-06-22DOI: 10.1109/ICTON.2008.4598656
M. Khair, B. Kantarci, Jun Zheng, H. Mouftah
The limited perimeter vector matching (LVM) protocol is a novel fault localization protocol for localizing single-link failures in all-optical networks. In this paper, we study the optimization problem to minimize fault localization time when applying the LVM protocol to static all-optical networks, where traffic demands (or lightpath requests) are known a priori. Given the traffic demands, the optimization problem is to find a traffic distribution so that the time for localizing a failed link can be minimized. We formulate the problem into an integer linear programming problem and use CPLEX to solve the problem. We show through numerical results that by optimizing the traffic distribution the fault localization time can be effectively minimized and is below the OSPF localization time (40 msec) in traditional IP networks.
{"title":"Optimization for minimizing fault localization time in all-optical networks","authors":"M. Khair, B. Kantarci, Jun Zheng, H. Mouftah","doi":"10.1109/ICTON.2008.4598656","DOIUrl":"https://doi.org/10.1109/ICTON.2008.4598656","url":null,"abstract":"The limited perimeter vector matching (LVM) protocol is a novel fault localization protocol for localizing single-link failures in all-optical networks. In this paper, we study the optimization problem to minimize fault localization time when applying the LVM protocol to static all-optical networks, where traffic demands (or lightpath requests) are known a priori. Given the traffic demands, the optimization problem is to find a traffic distribution so that the time for localizing a failed link can be minimized. We formulate the problem into an integer linear programming problem and use CPLEX to solve the problem. We show through numerical results that by optimizing the traffic distribution the fault localization time can be effectively minimized and is below the OSPF localization time (40 msec) in traditional IP networks.","PeriodicalId":230802,"journal":{"name":"2008 10th Anniversary International Conference on Transparent Optical Networks","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126324385","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}
Pub Date : 2008-06-22DOI: 10.1109/ICTON.2008.4598397
K. Zoiros, P. Avramidis, C. Koukourlis
The feasibility of operating the semiconductor optical amplifier (SOA)-based ultrafast nonlinear interferometer (UNI) in non-trivial switching mode is theoretically investigated and demonstrated using for this purpose a comprehensive model. By conducting numerical simulation the impact of the involved critical parameters on the Q-factor is thoroughly investigated and assessed enabling to extract useful design rules for their proper selection so as to ensure error-free performance at the desired output port of the specific interferometric arrangement. The obtained results may assist the study and implementation of all-optical circuits and subsystems of enhanced functionality, in particular with feedback, in which the UNI employing a SOA as the nonlinear element is the core logical module.
{"title":"Design analysis of SOA-based UNI in non-trivial switching mode","authors":"K. Zoiros, P. Avramidis, C. Koukourlis","doi":"10.1109/ICTON.2008.4598397","DOIUrl":"https://doi.org/10.1109/ICTON.2008.4598397","url":null,"abstract":"The feasibility of operating the semiconductor optical amplifier (SOA)-based ultrafast nonlinear interferometer (UNI) in non-trivial switching mode is theoretically investigated and demonstrated using for this purpose a comprehensive model. By conducting numerical simulation the impact of the involved critical parameters on the Q-factor is thoroughly investigated and assessed enabling to extract useful design rules for their proper selection so as to ensure error-free performance at the desired output port of the specific interferometric arrangement. The obtained results may assist the study and implementation of all-optical circuits and subsystems of enhanced functionality, in particular with feedback, in which the UNI employing a SOA as the nonlinear element is the core logical module.","PeriodicalId":230802,"journal":{"name":"2008 10th Anniversary International Conference on Transparent Optical Networks","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126334409","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}
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