Pub Date : 2008-06-22DOI: 10.1109/ICTON.2008.4598627
M. Usami
In this paper, KDDIpsilas vision and strategy for realizing so-called next generation network is presented. We announced ldquoultra 3Grdquo concept as a fixed-mobile converged network, which is built through a natural migration/extension process rather than building brand new NGN system. Our ldquoultra 3Grdquo network will enable customers to enjoy the real FMBC services, such as the high speed data services and high quality multimedia services whenever and wherever without awareness of the access network or complicated handover operations. Recent topics of our Ultra 3G such as new global submarine cable systems and WiMAX are reviewed. Future photonic technologies for realizing ultra-broadband network will also be addressed.
{"title":"Strategy for KDDI’s next generation network","authors":"M. Usami","doi":"10.1109/ICTON.2008.4598627","DOIUrl":"https://doi.org/10.1109/ICTON.2008.4598627","url":null,"abstract":"In this paper, KDDIpsilas vision and strategy for realizing so-called next generation network is presented. We announced ldquoultra 3Grdquo concept as a fixed-mobile converged network, which is built through a natural migration/extension process rather than building brand new NGN system. Our ldquoultra 3Grdquo network will enable customers to enjoy the real FMBC services, such as the high speed data services and high quality multimedia services whenever and wherever without awareness of the access network or complicated handover operations. Recent topics of our Ultra 3G such as new global submarine cable systems and WiMAX are reviewed. Future photonic technologies for realizing ultra-broadband network will also be addressed.","PeriodicalId":230802,"journal":{"name":"2008 10th Anniversary International Conference on Transparent Optical Networks","volume":"22 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":"125929160","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.2008.4598581
B. Jaskorzyńska, L. Wosinski, S. Lourdudoss, F. Olsson
We review major breakthroughs in realizing silicon-based active components by heterogeneous integration with III-V semiconductors, or nonlinear organic materials. In more detail we describe examples of our concepts and technological approach addressing this goal. This includes designs for widely tunable filters and new routes for heteroepitaxy and selective area growth of InP on silicon.
{"title":"Active Si-based photonics via heterogeneous integration","authors":"B. Jaskorzyńska, L. Wosinski, S. Lourdudoss, F. Olsson","doi":"10.1109/ICTON.2008.4598581","DOIUrl":"https://doi.org/10.1109/ICTON.2008.4598581","url":null,"abstract":"We review major breakthroughs in realizing silicon-based active components by heterogeneous integration with III-V semiconductors, or nonlinear organic materials. In more detail we describe examples of our concepts and technological approach addressing this goal. This includes designs for widely tunable filters and new routes for heteroepitaxy and selective area growth of InP on silicon.","PeriodicalId":230802,"journal":{"name":"2008 10th Anniversary International Conference on Transparent Optical Networks","volume":"417 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":"129770310","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.2008.4598733
N. Djellali, M. Lebental, R. Dubertrand, C. Schmit, E. Bogomolny, J. Zyss
There is currently a great deal of interest in dielectric micro-cavities due to their numerous practical applications and their use to test fundamental physics issues. A systematic way of identifying dominating periodic orbits is presented including a comparison of cavities with singular or smooth edges.
{"title":"Spectra and periodic orbits in a square shaped organic micro-lasers","authors":"N. Djellali, M. Lebental, R. Dubertrand, C. Schmit, E. Bogomolny, J. Zyss","doi":"10.1109/ICTON.2008.4598733","DOIUrl":"https://doi.org/10.1109/ICTON.2008.4598733","url":null,"abstract":"There is currently a great deal of interest in dielectric micro-cavities due to their numerous practical applications and their use to test fundamental physics issues. A systematic way of identifying dominating periodic orbits is presented including a comparison of cavities with singular or smooth edges.","PeriodicalId":230802,"journal":{"name":"2008 10th Anniversary International Conference on Transparent Optical Networks","volume":"171 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":"128533703","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.2008.4598776
R. Dubertrand, M. Lebental, N. Djellali, J. Zyss, C. Schmit, E. Bogomolny
There is currently a great deal of interest in flat dielectric micro-cavities due to their numerous practical applications and their ability to address fundamental physics issues. But apart from circular cavity, exact expressions of wave-functions and spectrum are still unknown for all other cavity shapes. The difficulty originates from two separated factors: non-linearities induced by the boundary shape and diffraction at the corners. Here we propose an analytical perturbation method for nearly circular cavities and give general formulae up to the second order in the perturbation parameter for the wave-functions, the spectrum, and the far-field pattern. This approach is confirmed with the example of the cut-disk (a chaotic cavity shape with corners) by numerical simulations based on the Boundary Element Method and experiments with organic micro-lasers. This analytical method can be extended to a broad diversity of cavity shapes. We discuss its range of validity in length scale and the limit of the effective refractive index approximation which underlies the two-dimensional approximation.
{"title":"Perturbation study of resonances for nearly circular micro-cavities","authors":"R. Dubertrand, M. Lebental, N. Djellali, J. Zyss, C. Schmit, E. Bogomolny","doi":"10.1109/ICTON.2008.4598776","DOIUrl":"https://doi.org/10.1109/ICTON.2008.4598776","url":null,"abstract":"There is currently a great deal of interest in flat dielectric micro-cavities due to their numerous practical applications and their ability to address fundamental physics issues. But apart from circular cavity, exact expressions of wave-functions and spectrum are still unknown for all other cavity shapes. The difficulty originates from two separated factors: non-linearities induced by the boundary shape and diffraction at the corners. Here we propose an analytical perturbation method for nearly circular cavities and give general formulae up to the second order in the perturbation parameter for the wave-functions, the spectrum, and the far-field pattern. This approach is confirmed with the example of the cut-disk (a chaotic cavity shape with corners) by numerical simulations based on the Boundary Element Method and experiments with organic micro-lasers. This analytical method can be extended to a broad diversity of cavity shapes. We discuss its range of validity in length scale and the limit of the effective refractive index approximation which underlies the two-dimensional approximation.","PeriodicalId":230802,"journal":{"name":"2008 10th Anniversary International Conference on Transparent Optical Networks","volume":"71 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":"124624761","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.2008.4598760
P. Urban, M. M. de Laat, E. Klein, A. Koonen, G. Khoe, H. de Waardt
In this paper, we demonstrate symmetrical bidirectional transmission of 1.25 Gbit/s wavelength channels in an access network link employing centralized light generation, colourless optical network unit (ONU) and a reconfigurable optical add/drop multiplexer (ROADM). The architecture of ONU is based on a reflective semiconductor optical amplifier (RSOA). The ROADM is constructed with thermally tuned micro-ring resonators. We present the results of transmission experiments and switching time measurement, which prove the concept of a transparent link with flexible bandwidth on-demand provision using cost-efficient elements.
{"title":"1.25 Gbit/s bidirectional link in an access network employing a reconfigurable optical add/drop multiplexer and a reflective semiconductor optical amplifier","authors":"P. Urban, M. M. de Laat, E. Klein, A. Koonen, G. Khoe, H. de Waardt","doi":"10.1109/ICTON.2008.4598760","DOIUrl":"https://doi.org/10.1109/ICTON.2008.4598760","url":null,"abstract":"In this paper, we demonstrate symmetrical bidirectional transmission of 1.25 Gbit/s wavelength channels in an access network link employing centralized light generation, colourless optical network unit (ONU) and a reconfigurable optical add/drop multiplexer (ROADM). The architecture of ONU is based on a reflective semiconductor optical amplifier (RSOA). The ROADM is constructed with thermally tuned micro-ring resonators. We present the results of transmission experiments and switching time measurement, which prove the concept of a transparent link with flexible bandwidth on-demand provision using cost-efficient elements.","PeriodicalId":230802,"journal":{"name":"2008 10th Anniversary International Conference on Transparent Optical Networks","volume":"21 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":"130938248","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.2008.4598696
M. Lanata, M. Fere, D. Piccinin, S. Pietralunga, M. Martinelli
Tellurium oxide is a promising optical material, conjugating transparency in the infrared with high refractive index, low chromatic dispersion with strong nonlinear response, elevated acousto-optic figure of merit and rare earth doping capability. Reactive sputtering is a suitable technique to obtain thin films of pure TeO2 glass, with tunable stoichiometry, without the need for added components to help vitrification. We report on the growth of tellurite thin films, on the linear and non-linear optical characterization and on the process technology to implement high-contrast planar optics.
{"title":"Sputtered tellurite glass thin films for planar optical devices","authors":"M. Lanata, M. Fere, D. Piccinin, S. Pietralunga, M. Martinelli","doi":"10.1109/ICTON.2008.4598696","DOIUrl":"https://doi.org/10.1109/ICTON.2008.4598696","url":null,"abstract":"Tellurium oxide is a promising optical material, conjugating transparency in the infrared with high refractive index, low chromatic dispersion with strong nonlinear response, elevated acousto-optic figure of merit and rare earth doping capability. Reactive sputtering is a suitable technique to obtain thin films of pure TeO2 glass, with tunable stoichiometry, without the need for added components to help vitrification. We report on the growth of tellurite thin films, on the linear and non-linear optical characterization and on the process technology to implement high-contrast planar optics.","PeriodicalId":230802,"journal":{"name":"2008 10th Anniversary International Conference on Transparent Optical Networks","volume":"94 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":"128734818","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.2008.4598406
K. Moutzouris, F. Adler, A. Sell, A. Leitenstorfer
In this paper, we review various nonlinear wavelength conversion experiments based upon a femtosecond erbium-fiber source operating at the telecommunication wavelength of 1.55 mum. By use of harmonic and sum frequency generation a nearly continuous ultra-wide band coverage from the ultraviolet through the entire visible to the near-infrared is achieved. The up-converted radiation appears in the form of ultra-short pulses with a repetition rate of approximately 100 MHz and average power levels ranging from few to more than 100 mW. In addition, we report on a concept for broadband-to-narrowband frequency doubling. Under this novel, highly efficient scheme, the harmonic component is subjected to simultaneous spectral filtering and brightness enhancement. Such performance characteristics may be of great interest to numerous applications, including high-capacity data storage, frequency-comb generation, bioimaging and spectroscopy.
{"title":"Ultra-wide band wavelength converters","authors":"K. Moutzouris, F. Adler, A. Sell, A. Leitenstorfer","doi":"10.1109/ICTON.2008.4598406","DOIUrl":"https://doi.org/10.1109/ICTON.2008.4598406","url":null,"abstract":"In this paper, we review various nonlinear wavelength conversion experiments based upon a femtosecond erbium-fiber source operating at the telecommunication wavelength of 1.55 mum. By use of harmonic and sum frequency generation a nearly continuous ultra-wide band coverage from the ultraviolet through the entire visible to the near-infrared is achieved. The up-converted radiation appears in the form of ultra-short pulses with a repetition rate of approximately 100 MHz and average power levels ranging from few to more than 100 mW. In addition, we report on a concept for broadband-to-narrowband frequency doubling. Under this novel, highly efficient scheme, the harmonic component is subjected to simultaneous spectral filtering and brightness enhancement. Such performance characteristics may be of great interest to numerous applications, including high-capacity data storage, frequency-comb generation, bioimaging and spectroscopy.","PeriodicalId":230802,"journal":{"name":"2008 10th Anniversary International Conference on Transparent Optical Networks","volume":"2 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":"127688697","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.2008.4598428
J. Lamperski
Numerical and experimental results of a multifrequency optical source with an exceptionally stable channel separation are presented. The system consists of a single master laser and a ring containing an acousto-optic frequency shifter and an optical amplifier. The operation is based on the multiple frequency shift every round trip. We tested a single and double frequency shifter configuration. For the single stage configuration up to 84 spectral lines with stable 1.5 GHz spacing were obtained. Experimental results of the system with two cascaded shifters were demonstrated for the first time and up to 30 optical carrier frequencies with 2.5 GHz channel separation were obtained. The experimental results were in agreement with numerical simulations.
{"title":"Active fiber comb source with single and double frequency shifters for UDWDM applications","authors":"J. Lamperski","doi":"10.1109/ICTON.2008.4598428","DOIUrl":"https://doi.org/10.1109/ICTON.2008.4598428","url":null,"abstract":"Numerical and experimental results of a multifrequency optical source with an exceptionally stable channel separation are presented. The system consists of a single master laser and a ring containing an acousto-optic frequency shifter and an optical amplifier. The operation is based on the multiple frequency shift every round trip. We tested a single and double frequency shifter configuration. For the single stage configuration up to 84 spectral lines with stable 1.5 GHz spacing were obtained. Experimental results of the system with two cascaded shifters were demonstrated for the first time and up to 30 optical carrier frequencies with 2.5 GHz channel separation were obtained. The experimental results were in agreement with numerical simulations.","PeriodicalId":230802,"journal":{"name":"2008 10th Anniversary International Conference on Transparent Optical Networks","volume":"30 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":"121824879","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.2008.4598363
E. Beres-Pawlik, G. Lis, T. Duchiewicz, G. Budzyń
In this paper we describe practical realization of symmetrical multimode optical fiber network. We present the estimation of networkspsila size for different dynamic range and practical implementation of communication CSMA/CD mechanism.
{"title":"Practical realization of symmetrical multimode fiber optical network","authors":"E. Beres-Pawlik, G. Lis, T. Duchiewicz, G. Budzyń","doi":"10.1109/ICTON.2008.4598363","DOIUrl":"https://doi.org/10.1109/ICTON.2008.4598363","url":null,"abstract":"In this paper we describe practical realization of symmetrical multimode optical fiber network. We present the estimation of networkspsila size for different dynamic range and practical implementation of communication CSMA/CD mechanism.","PeriodicalId":230802,"journal":{"name":"2008 10th Anniversary International Conference on Transparent Optical Networks","volume":"55 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":"121361476","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.2008.4598645
B. Kantarci, H. Mouftah, S. Oktug
In this paper, we present two adaptive connection provisioning algorithms to offer better availability per connection under dynamic traffic with shared backup path protection. The proposed schemes monitor the status of the network in terms of resource consumption and average unavailability per connection and adapt the sharing degree for the links. We compare our heuristic and optimized sharing degree approach with a conventional connection provisioning approach under two different topologies. The simulation results show that our proposed approaches offer better availability to incoming connection requests. Results referring to resource overbuild guarantee that shared backup protection is not violated since resource overbuild is kept in a feasible range.
{"title":"Connection provisioning with feasible shareability determination for availability-aware design of optical networks","authors":"B. Kantarci, H. Mouftah, S. Oktug","doi":"10.1109/ICTON.2008.4598645","DOIUrl":"https://doi.org/10.1109/ICTON.2008.4598645","url":null,"abstract":"In this paper, we present two adaptive connection provisioning algorithms to offer better availability per connection under dynamic traffic with shared backup path protection. The proposed schemes monitor the status of the network in terms of resource consumption and average unavailability per connection and adapt the sharing degree for the links. We compare our heuristic and optimized sharing degree approach with a conventional connection provisioning approach under two different topologies. The simulation results show that our proposed approaches offer better availability to incoming connection requests. Results referring to resource overbuild guarantee that shared backup protection is not violated since resource overbuild is kept in a feasible range.","PeriodicalId":230802,"journal":{"name":"2008 10th Anniversary International Conference on Transparent Optical Networks","volume":"151 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":"122319874","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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