Pub Date : 2007-12-01DOI: 10.1109/ICTONMW.2007.4446983
N. Calabretta, G. Contestabile, Y. Liu, M. Hill, E. Tangdiongga, M. Presi, E. Ciaramella, H. Dorren
Scalability of packet switched cross-connects that utilize all-optical signal processing is a crucial issue that eventually determines the future role of photonic signal processing in optical networks. After reviewing several labeling techniques, we discuss in this talk label stacking techniques and its benefits for scalable optical burst and packet switched nodes. All-optical signal processing techniques enabling label stacked processing and all-optical devices for ultrafast packet switching will be also presented.
{"title":"All-optical techniques enabling packet switching","authors":"N. Calabretta, G. Contestabile, Y. Liu, M. Hill, E. Tangdiongga, M. Presi, E. Ciaramella, H. Dorren","doi":"10.1109/ICTONMW.2007.4446983","DOIUrl":"https://doi.org/10.1109/ICTONMW.2007.4446983","url":null,"abstract":"Scalability of packet switched cross-connects that utilize all-optical signal processing is a crucial issue that eventually determines the future role of photonic signal processing in optical networks. After reviewing several labeling techniques, we discuss in this talk label stacking techniques and its benefits for scalable optical burst and packet switched nodes. All-optical signal processing techniques enabling label stacked processing and all-optical devices for ultrafast packet switching will be also presented.","PeriodicalId":366170,"journal":{"name":"2007 ICTON Mediterranean Winter Conference","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134100387","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 : 2007-12-01DOI: 10.1109/ICTONMW.2007.4446933
G. Manzacca, K. Hingerl, G. Cincotti
We analyze the behaviour of a quantum dot embedded in a photonic crystal add-drop filter and in a direct coupled photonic crystal microcavity for optical signal processing applications. The joint effect of dipole induced transparency and electromagnetic induced transparency, considering a cascade configuration of the quantum dot, are used to modify the behaviour of the whole system. The mathematical model and a number of different conditions for tuning the frequency response of the filters are derived for application in all-optical switching and wavelength tunable devices.
{"title":"All-optical switching by entangling quantum dot states in a photonic crystal cavity","authors":"G. Manzacca, K. Hingerl, G. Cincotti","doi":"10.1109/ICTONMW.2007.4446933","DOIUrl":"https://doi.org/10.1109/ICTONMW.2007.4446933","url":null,"abstract":"We analyze the behaviour of a quantum dot embedded in a photonic crystal add-drop filter and in a direct coupled photonic crystal microcavity for optical signal processing applications. The joint effect of dipole induced transparency and electromagnetic induced transparency, considering a cascade configuration of the quantum dot, are used to modify the behaviour of the whole system. The mathematical model and a number of different conditions for tuning the frequency response of the filters are derived for application in all-optical switching and wavelength tunable devices.","PeriodicalId":366170,"journal":{"name":"2007 ICTON Mediterranean Winter Conference","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134609292","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 : 2007-12-01DOI: 10.1109/ICTONMW.2007.4446957
M. Addoua, M. El Jouad, A.M. Lamrani, Z. Sofian, B. Sahraoui, A. Monteil, N. Gaumer, S. Dabos, T. El Habbani, N. Fellah, K. Bahedi, L. Dghoughi
Zinc oxide (ZnO) and erbium doped zinc oxide (ZnO:Er) thin films, were deposited on heated glass substrates using spray pyrolysis technique. Third-order nonlinear-optical properties of ZnO and ZnO:Er have been investigated by the third harmonic generation (THG) method at the wavelength of 1064 nm using nanosecond Nd3+:YAG laser radiation. The dependence of third order nonlinear susceptibility and transmission characteristics on the thin film roughness has been measured. Third order nonlinear optical susceptibility ( chi(3)) values of the studied materials were in the remarkable range of 10-12 esu. The deposited films have been analyzed using X-ray diffraction (XRD) and atomic force microscopy (AFM).
{"title":"Effect of roughness on third-order nonlinear-optical susceptibility of rare earth doped zinc oxide thin films","authors":"M. Addoua, M. El Jouad, A.M. Lamrani, Z. Sofian, B. Sahraoui, A. Monteil, N. Gaumer, S. Dabos, T. El Habbani, N. Fellah, K. Bahedi, L. Dghoughi","doi":"10.1109/ICTONMW.2007.4446957","DOIUrl":"https://doi.org/10.1109/ICTONMW.2007.4446957","url":null,"abstract":"Zinc oxide (ZnO) and erbium doped zinc oxide (ZnO:Er) thin films, were deposited on heated glass substrates using spray pyrolysis technique. Third-order nonlinear-optical properties of ZnO and ZnO:Er have been investigated by the third harmonic generation (THG) method at the wavelength of 1064 nm using nanosecond Nd3+:YAG laser radiation. The dependence of third order nonlinear susceptibility and transmission characteristics on the thin film roughness has been measured. Third order nonlinear optical susceptibility ( chi(3)) values of the studied materials were in the remarkable range of 10-12 esu. The deposited films have been analyzed using X-ray diffraction (XRD) and atomic force microscopy (AFM).","PeriodicalId":366170,"journal":{"name":"2007 ICTON Mediterranean Winter Conference","volume":"129 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114004632","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 : 2007-12-01DOI: 10.1109/ICTONMW.2007.4446915
I. Gunawan, N. Fard
Recent improvements in the optical interconnection technology allow creation of interconnection networks that are larger, faster, and more power efficient than ever before. In this paper, characteristics and limitations of optical multistage interconnection networks (MIN) will be discussed. Then, an implementation of optical MIN for shuffle-exchange network will be presented, including its parameters such as connectivity, network complexity, signal path length, and total number of waveguide crossings. Shuffle-exchange network has been widely considered as a practical interconnection system due to the size of its switching elements and uncomplicated configuration. The reliability evaluation of shuffle-exchange network is demonstrated through a numerical example.
{"title":"Reliability evaluation of optical multistage interconnection networks","authors":"I. Gunawan, N. Fard","doi":"10.1109/ICTONMW.2007.4446915","DOIUrl":"https://doi.org/10.1109/ICTONMW.2007.4446915","url":null,"abstract":"Recent improvements in the optical interconnection technology allow creation of interconnection networks that are larger, faster, and more power efficient than ever before. In this paper, characteristics and limitations of optical multistage interconnection networks (MIN) will be discussed. Then, an implementation of optical MIN for shuffle-exchange network will be presented, including its parameters such as connectivity, network complexity, signal path length, and total number of waveguide crossings. Shuffle-exchange network has been widely considered as a practical interconnection system due to the size of its switching elements and uncomplicated configuration. The reliability evaluation of shuffle-exchange network is demonstrated through a numerical example.","PeriodicalId":366170,"journal":{"name":"2007 ICTON Mediterranean Winter Conference","volume":"83 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128421606","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 : 2007-12-01DOI: 10.1109/ICTONMW.2007.4446952
Zabih Ghassemlooy, W. Popoola, S. Rajbhandari, M. Amiri, S. Hashemi
A number of modulation techniques have been proposed and thoroughly analysed in literature for optical wireless communication systems. Each modulation technique has its unique attractive features as well as its challenges. Some are very simple to implement and bandwidth efficient like the on-off keying (OOK). Pulse interval modulation (PIM) techniques are reputed for their inherent synchronisation pulse, subcarrier modulation offers increased throughput, resilience to the inter-symbol interference (ISI) and immunity against the fluorescent-light noise near DC, while pulse position modulation (PPM) provides the unparalleled power efficiency in line of sight (LOS) links but the performance degrades severely in dispersed communication channel. There has been an enormous work on the analysis of these and many more modulation techniques under different channel and environmental conditions; we however present here a concise synopsis of the mostly reported wireless infrared modulation techniques.
{"title":"A synopsis of modulation techniques for wireless infrared communication","authors":"Zabih Ghassemlooy, W. Popoola, S. Rajbhandari, M. Amiri, S. Hashemi","doi":"10.1109/ICTONMW.2007.4446952","DOIUrl":"https://doi.org/10.1109/ICTONMW.2007.4446952","url":null,"abstract":"A number of modulation techniques have been proposed and thoroughly analysed in literature for optical wireless communication systems. Each modulation technique has its unique attractive features as well as its challenges. Some are very simple to implement and bandwidth efficient like the on-off keying (OOK). Pulse interval modulation (PIM) techniques are reputed for their inherent synchronisation pulse, subcarrier modulation offers increased throughput, resilience to the inter-symbol interference (ISI) and immunity against the fluorescent-light noise near DC, while pulse position modulation (PPM) provides the unparalleled power efficiency in line of sight (LOS) links but the performance degrades severely in dispersed communication channel. There has been an enormous work on the analysis of these and many more modulation techniques under different channel and environmental conditions; we however present here a concise synopsis of the mostly reported wireless infrared modulation techniques.","PeriodicalId":366170,"journal":{"name":"2007 ICTON Mediterranean Winter Conference","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126825852","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 : 2007-12-01DOI: 10.1109/ICTONMW.2007.4446913
L. Wosinska, Jiajia Chen, M. Kantor, K. Wajda
In this talk the cost of building resilient passive optical networks (PONs) is analyzed in relation to the connection availability performance. Both standard and several novel PON protection architectures are considered. A new measure for cost efficiency of protection is proposed to compare different protection architectures in order to select the most appropriate ones for particular groups of clients. To evaluate the different PON protection schemes we propose a cost-reliability measure (CRM) in order to capture the trade-off between the deployment cost and reliability performance. The CRM values obtained for each considered protection scheme allow for selecting the most cost-efficient protection for PON customers.
{"title":"Reliability and cost analysis of passive optical networks","authors":"L. Wosinska, Jiajia Chen, M. Kantor, K. Wajda","doi":"10.1109/ICTONMW.2007.4446913","DOIUrl":"https://doi.org/10.1109/ICTONMW.2007.4446913","url":null,"abstract":"In this talk the cost of building resilient passive optical networks (PONs) is analyzed in relation to the connection availability performance. Both standard and several novel PON protection architectures are considered. A new measure for cost efficiency of protection is proposed to compare different protection architectures in order to select the most appropriate ones for particular groups of clients. To evaluate the different PON protection schemes we propose a cost-reliability measure (CRM) in order to capture the trade-off between the deployment cost and reliability performance. The CRM values obtained for each considered protection scheme allow for selecting the most cost-efficient protection for PON customers.","PeriodicalId":366170,"journal":{"name":"2007 ICTON Mediterranean Winter Conference","volume":"81 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126380140","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 : 2007-12-01DOI: 10.1109/ICTONMW.2007.4446948
T. Ennejah, F. Bahloul, R. Attia
Figure-eight fiber laser (8FL), as a source of ultra short pulses find many applications in optical communication. In this paper, we provide basic ideas about principle of operation of this type of fiber laser. We also give an idea about the Split Step Fourier Method (SSFM) and we use this algorithm to simulate our application. As much as we can, we try to define the difference between Non Linear Optical Loop Mirror (NOLM) and Non Linear Amplifying Loop Mirror (NALM) configuration. The last part of this paper is devoted to different simulations which have as a target to convey in a summarized manner the interest of using MOF in 8FL.
{"title":"Generation of ultra short pulses in a figure-eight fiber laser using microstructured optical fiber MOF","authors":"T. Ennejah, F. Bahloul, R. Attia","doi":"10.1109/ICTONMW.2007.4446948","DOIUrl":"https://doi.org/10.1109/ICTONMW.2007.4446948","url":null,"abstract":"Figure-eight fiber laser (8FL), as a source of ultra short pulses find many applications in optical communication. In this paper, we provide basic ideas about principle of operation of this type of fiber laser. We also give an idea about the Split Step Fourier Method (SSFM) and we use this algorithm to simulate our application. As much as we can, we try to define the difference between Non Linear Optical Loop Mirror (NOLM) and Non Linear Amplifying Loop Mirror (NALM) configuration. The last part of this paper is devoted to different simulations which have as a target to convey in a summarized manner the interest of using MOF in 8FL.","PeriodicalId":366170,"journal":{"name":"2007 ICTON Mediterranean Winter Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121670365","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 : 2007-12-01DOI: 10.1109/ICTONMW.2007.4446921
V. Marrocco, M. Grande, M. De Sario, V. Petruzzelli, F. Prudenzano, A. D’orazio
This paper briefly reviews the state of the art related to the wavelength-division demultiplexing systems based on two-dimensional photonic crystal structures. Moreover, a few proposals of WDM systems based on PBG chirped waveguide, developed by our research group, are reported. The operation of the proposed structures is based on the shift of the transmission band cut-off wavelengths obtained by cascading photonic band gap waveguides designed in different photonic crystal sections which are characterized by a variation of the lattice constant along the propagation direction.
{"title":"PBG chirped waveguide for efficient signal routing","authors":"V. Marrocco, M. Grande, M. De Sario, V. Petruzzelli, F. Prudenzano, A. D’orazio","doi":"10.1109/ICTONMW.2007.4446921","DOIUrl":"https://doi.org/10.1109/ICTONMW.2007.4446921","url":null,"abstract":"This paper briefly reviews the state of the art related to the wavelength-division demultiplexing systems based on two-dimensional photonic crystal structures. Moreover, a few proposals of WDM systems based on PBG chirped waveguide, developed by our research group, are reported. The operation of the proposed structures is based on the shift of the transmission band cut-off wavelengths obtained by cascading photonic band gap waveguides designed in different photonic crystal sections which are characterized by a variation of the lattice constant along the propagation direction.","PeriodicalId":366170,"journal":{"name":"2007 ICTON Mediterranean Winter Conference","volume":"1982 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125445727","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 : 2007-12-01DOI: 10.1109/ICTONMW.2007.4446981
D. Sachelarie, S. Stanciu, G. Stanciu
The influence of the mesa surface, imaged by atomic force microscopy (AFM), on the current gain of InP/InGaAs heterojunction bipolar transistor for three emitter crystallographic orientations was reported. The three-dimensional surface topography of the samples was characterized with an AFM. The current gain versus collector current for three emitters were obtained.
{"title":"Atomic force microscopy analysis of orientation effect on InP-based heterojunction bipolar transistors","authors":"D. Sachelarie, S. Stanciu, G. Stanciu","doi":"10.1109/ICTONMW.2007.4446981","DOIUrl":"https://doi.org/10.1109/ICTONMW.2007.4446981","url":null,"abstract":"The influence of the mesa surface, imaged by atomic force microscopy (AFM), on the current gain of InP/InGaAs heterojunction bipolar transistor for three emitter crystallographic orientations was reported. The three-dimensional surface topography of the samples was characterized with an AFM. The current gain versus collector current for three emitters were obtained.","PeriodicalId":366170,"journal":{"name":"2007 ICTON Mediterranean Winter Conference","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132701083","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 : 2007-12-01DOI: 10.1109/ICTONMW.2007.4446959
K. Bouchouit, Z. Essaidi, S. Abed, N. Benali-cherif, B. Sahraoui
Nonlinear optical (NLO) crystals, due to their nonlinear properties, have been found to have enormous applications in frequency conversion, image processing, data storage, fiber optic communication, etc. Recently, variety of semi-organic crystals for nonlinear optics applications have been developed, among them the donor-acceptor molecule are found to have definite edge over others as they display special features of interest, such as nitroanilines have inherently large second-order microscopic polarizabilities and they seem to be very good candidates for nonlinear optical materials. As far as we know, there has been only one attempt to systematically explore the second-order nonlinear response of clusters of these chromophores to relate the resulting intermolecular interactions to the quadratic hyperpolarizabilities, these molecular interactions being of the dipole-dipole type. A potentially useful organic-inorganic nonlinear optical aqueous solutions of p-Nitroanilinium with different anions (nitrate, sulphate and perchlorate) has been synthesized at room temperature by slow solvent evaporation method. We will report the measurement of absorption and nonlinear third-order optical susceptibilities of p-Nitroanilinium doped with different anions. Measurements were performed in solutions using transmission experiment and the degenerate four wave mixing technique (DFWM) at 532 nm. The value obtained for the best compound in terms of ( chi<3> ) is the same order of larger than the value of CS2, which is a reference material. Third order nonlinear optical susceptibility of the studied compounds was evaluated using third harmonic generation (THG) set up at 1064 nm. The measurements were performed on thin films.
{"title":"Studies of organic-inorganic hydride materials for nonlinear optical applications","authors":"K. Bouchouit, Z. Essaidi, S. Abed, N. Benali-cherif, B. Sahraoui","doi":"10.1109/ICTONMW.2007.4446959","DOIUrl":"https://doi.org/10.1109/ICTONMW.2007.4446959","url":null,"abstract":"Nonlinear optical (NLO) crystals, due to their nonlinear properties, have been found to have enormous applications in frequency conversion, image processing, data storage, fiber optic communication, etc. Recently, variety of semi-organic crystals for nonlinear optics applications have been developed, among them the donor-acceptor molecule are found to have definite edge over others as they display special features of interest, such as nitroanilines have inherently large second-order microscopic polarizabilities and they seem to be very good candidates for nonlinear optical materials. As far as we know, there has been only one attempt to systematically explore the second-order nonlinear response of clusters of these chromophores to relate the resulting intermolecular interactions to the quadratic hyperpolarizabilities, these molecular interactions being of the dipole-dipole type. A potentially useful organic-inorganic nonlinear optical aqueous solutions of p-Nitroanilinium with different anions (nitrate, sulphate and perchlorate) has been synthesized at room temperature by slow solvent evaporation method. We will report the measurement of absorption and nonlinear third-order optical susceptibilities of p-Nitroanilinium doped with different anions. Measurements were performed in solutions using transmission experiment and the degenerate four wave mixing technique (DFWM) at 532 nm. The value obtained for the best compound in terms of ( chi<3> ) is the same order of larger than the value of CS2, which is a reference material. Third order nonlinear optical susceptibility of the studied compounds was evaluated using third harmonic generation (THG) set up at 1064 nm. The measurements were performed on thin films.","PeriodicalId":366170,"journal":{"name":"2007 ICTON Mediterranean Winter Conference","volume":"38 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114001257","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：