Pub Date : 2003-06-29DOI: 10.1109/ICTON.2003.1263149
P. Faraj, J. Leibrich, W. Rosenkranz
We investigate the performance of Hamming and BCH block codes for the case of ASE (amplified spontaneous emission) noise as the dominating impairment. Numerical results obtained by Monte-Carlo simulations show excellent agreement with theoretical considerations.
{"title":"Coding gain of basic FEC block-codes in the presence of ASE noise","authors":"P. Faraj, J. Leibrich, W. Rosenkranz","doi":"10.1109/ICTON.2003.1263149","DOIUrl":"https://doi.org/10.1109/ICTON.2003.1263149","url":null,"abstract":"We investigate the performance of Hamming and BCH block codes for the case of ASE (amplified spontaneous emission) noise as the dominating impairment. Numerical results obtained by Monte-Carlo simulations show excellent agreement with theoretical considerations.","PeriodicalId":272700,"journal":{"name":"Proceedings of 2003 5th International Conference on Transparent Optical Networks, 2003.","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122009083","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 : 2003-06-29DOI: 10.1109/ICTON.2003.1264594
A. Barcz, S. Helfert, R. Pregla
In this paper we present the results of numerical analysis of photonic bandgap structures like bends and their concatenations, holey fibers or waveguide filter with holes and defect. These 2D and 3D devices were modeled by the Method of Lines (MoL). For the purpose of analysing bends we used the MoL with crossed discretization lines and scattering parameters.
{"title":"The method of lines applied to numerical simulation of 2D and 3D bandgap structures","authors":"A. Barcz, S. Helfert, R. Pregla","doi":"10.1109/ICTON.2003.1264594","DOIUrl":"https://doi.org/10.1109/ICTON.2003.1264594","url":null,"abstract":"In this paper we present the results of numerical analysis of photonic bandgap structures like bends and their concatenations, holey fibers or waveguide filter with holes and defect. These 2D and 3D devices were modeled by the Method of Lines (MoL). For the purpose of analysing bends we used the MoL with crossed discretization lines and scattering parameters.","PeriodicalId":272700,"journal":{"name":"Proceedings of 2003 5th International Conference on Transparent Optical Networks, 2003.","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116880848","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 : 2003-06-29DOI: 10.1109/ICTON.2003.1264569
T. Wolinski, P. Lesiak, K. Sokolowski, A. Witkowska
We have investigated polarization properties of photonic crystal fibres (PCFs) produced by our company Crystal Fibre A/S. By applying a wavelength-sweeping technique for beat length measurement and the fixed analyzer technique for measurement polarisation mode dispersion (PMD) we found an experimental relation between beat-length and differential group delay (DGD) parameters for selected types of HB (PANDA, bow-tie) and PCFs produced by Crystal Fibre A/S.
{"title":"Polarization properties of highly birefringent photonic crystal fibers","authors":"T. Wolinski, P. Lesiak, K. Sokolowski, A. Witkowska","doi":"10.1109/ICTON.2003.1264569","DOIUrl":"https://doi.org/10.1109/ICTON.2003.1264569","url":null,"abstract":"We have investigated polarization properties of photonic crystal fibres (PCFs) produced by our company Crystal Fibre A/S. By applying a wavelength-sweeping technique for beat length measurement and the fixed analyzer technique for measurement polarisation mode dispersion (PMD) we found an experimental relation between beat-length and differential group delay (DGD) parameters for selected types of HB (PANDA, bow-tie) and PCFs produced by Crystal Fibre A/S.","PeriodicalId":272700,"journal":{"name":"Proceedings of 2003 5th International Conference on Transparent Optical Networks, 2003.","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124424399","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 : 2003-06-29DOI: 10.1109/ICTON.2003.1264585
R. Rejeb, I. Pavlosoglou, M. Leeson, R. Green
All-optical networks (AONs) are a relatively new technology for high data-rate communications. They contain only optical components and are intrinsically different from optical networks currently being used. More specifically, AONs provide transparent features that allow routing and data switching without necessitating the interpretation or regression of signals within the network. Consequently, AON components and architectures bring forth a set of new challenges in network security. The paper presents an overview of security issues in AONs and proposes the design criteria for network management in AONs. In addition, there is a discussion concerning the implementation of such a system within the authors' research group.
{"title":"Securing all-optical networks","authors":"R. Rejeb, I. Pavlosoglou, M. Leeson, R. Green","doi":"10.1109/ICTON.2003.1264585","DOIUrl":"https://doi.org/10.1109/ICTON.2003.1264585","url":null,"abstract":"All-optical networks (AONs) are a relatively new technology for high data-rate communications. They contain only optical components and are intrinsically different from optical networks currently being used. More specifically, AONs provide transparent features that allow routing and data switching without necessitating the interpretation or regression of signals within the network. Consequently, AON components and architectures bring forth a set of new challenges in network security. The paper presents an overview of security issues in AONs and proposes the design criteria for network management in AONs. In addition, there is a discussion concerning the implementation of such a system within the authors' research group.","PeriodicalId":272700,"journal":{"name":"Proceedings of 2003 5th International Conference on Transparent Optical Networks, 2003.","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125952378","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 : 2003-06-29DOI: 10.1109/ICTON.2003.1263145
K. Langer
Summary form only given. Broadband access and in-house networks are prerequisites for both business and private customers for future multimedia Internet communication. Current solutions for providing capacities of more than 100 Mbit/s to residential customers and up to several gigabits per second to business customers and enterprises are too expensive in both installation and operation, and are not ready for volume production. As potential candidates for overcoming cost barriers, WDM based solutions of optical access networks are the main focus of this contribution, where aspects of cost-efficiency, simplicity, versatility, and practical issues of installation and introduction are addressed. Moreover, recent developments in the optical access network domain are touched, and the customer's need for short period high-speed transmission capacity is illustrated.
{"title":"Challenges of optical access networks","authors":"K. Langer","doi":"10.1109/ICTON.2003.1263145","DOIUrl":"https://doi.org/10.1109/ICTON.2003.1263145","url":null,"abstract":"Summary form only given. Broadband access and in-house networks are prerequisites for both business and private customers for future multimedia Internet communication. Current solutions for providing capacities of more than 100 Mbit/s to residential customers and up to several gigabits per second to business customers and enterprises are too expensive in both installation and operation, and are not ready for volume production. As potential candidates for overcoming cost barriers, WDM based solutions of optical access networks are the main focus of this contribution, where aspects of cost-efficiency, simplicity, versatility, and practical issues of installation and introduction are addressed. Moreover, recent developments in the optical access network domain are touched, and the customer's need for short period high-speed transmission capacity is illustrated.","PeriodicalId":272700,"journal":{"name":"Proceedings of 2003 5th International Conference on Transparent Optical Networks, 2003.","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129806602","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 : 2003-06-29DOI: 10.1109/ICTON.2003.1263146
Y. Sasaki
Recent progress in research on optical fiber grating couplers (FGCs) is reviewed. Furthermore, applications of FGCs, such as an ASE (amplified spontaneous emission) noise reduction filter, a gain monitor, an add-drop multiplexer and an all-optical switcher, are also presented.
{"title":"Recent progress in research on optical fiber grating couplers","authors":"Y. Sasaki","doi":"10.1109/ICTON.2003.1263146","DOIUrl":"https://doi.org/10.1109/ICTON.2003.1263146","url":null,"abstract":"Recent progress in research on optical fiber grating couplers (FGCs) is reviewed. Furthermore, applications of FGCs, such as an ASE (amplified spontaneous emission) noise reduction filter, a gain monitor, an add-drop multiplexer and an all-optical switcher, are also presented.","PeriodicalId":272700,"journal":{"name":"Proceedings of 2003 5th International Conference on Transparent Optical Networks, 2003.","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129134623","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 : 2003-06-29DOI: 10.1109/ICTON.2003.1264622
A. D’orazio, M. De Sario, L. Mescia, V. Petruzzelli, F. Prudenzano
An erbium doped SiO/sub 2/-TiO/sub 2/ planar amplifier, ytterbium sensitised, is designed by means of a home made computer code. For the small signal operation, a gain close to G = 7.48 dB and a noise figure F = 4.08 dB are calculated for a waveguide 3 cm long, erbium concentration N/sub Er/ = 2.8 /spl times/ 10/sup 26/ ions/m/sup 3/, ytterbium concentration N/sub Yb/ = 1.4 /spl times/ 10/sup 27/ ions/m/sup 3/, by using pump power of P/sub p/(0) = 200 mW.
{"title":"Design of Er/sup 3+//Yb/sup 3+/ doped silica/titania planar waveguide amplifier","authors":"A. D’orazio, M. De Sario, L. Mescia, V. Petruzzelli, F. Prudenzano","doi":"10.1109/ICTON.2003.1264622","DOIUrl":"https://doi.org/10.1109/ICTON.2003.1264622","url":null,"abstract":"An erbium doped SiO/sub 2/-TiO/sub 2/ planar amplifier, ytterbium sensitised, is designed by means of a home made computer code. For the small signal operation, a gain close to G = 7.48 dB and a noise figure F = 4.08 dB are calculated for a waveguide 3 cm long, erbium concentration N/sub Er/ = 2.8 /spl times/ 10/sup 26/ ions/m/sup 3/, ytterbium concentration N/sub Yb/ = 1.4 /spl times/ 10/sup 27/ ions/m/sup 3/, by using pump power of P/sub p/(0) = 200 mW.","PeriodicalId":272700,"journal":{"name":"Proceedings of 2003 5th International Conference on Transparent Optical Networks, 2003.","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130554939","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 : 2003-06-29DOI: 10.1109/ICTON.2003.1263175
J. Mora, J. Cruz, A. Díez, M. Andrés, B. Ortega, D. Pastor, S. Sales, J. Capmany
Microwave and mm-wave photonics for broadband communications is an area of important growth and of great interest for information society technologies (Internet traffic, video on demand, >1 Gb/s to the home, 40 Gb/s optical systems, optical beam forming for intelligent antennas, all-optical networks, etc.). Fiber Bragg gratings are key components for the development of low-cost microwave photonics. Reliability and high tunability capacity are some of the specific advantages of using fiber Bragg gratings. Recent developments include novel configurations to obtain tunable all-optical negative multi-tap microwave filters, adjustable dispersion devices and temperature insensitive transversal filters.
{"title":"Microwave photonics based on fiber Bragg gratings","authors":"J. Mora, J. Cruz, A. Díez, M. Andrés, B. Ortega, D. Pastor, S. Sales, J. Capmany","doi":"10.1109/ICTON.2003.1263175","DOIUrl":"https://doi.org/10.1109/ICTON.2003.1263175","url":null,"abstract":"Microwave and mm-wave photonics for broadband communications is an area of important growth and of great interest for information society technologies (Internet traffic, video on demand, >1 Gb/s to the home, 40 Gb/s optical systems, optical beam forming for intelligent antennas, all-optical networks, etc.). Fiber Bragg gratings are key components for the development of low-cost microwave photonics. Reliability and high tunability capacity are some of the specific advantages of using fiber Bragg gratings. Recent developments include novel configurations to obtain tunable all-optical negative multi-tap microwave filters, adjustable dispersion devices and temperature insensitive transversal filters.","PeriodicalId":272700,"journal":{"name":"Proceedings of 2003 5th International Conference on Transparent Optical Networks, 2003.","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126720634","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 : 2003-06-29DOI: 10.1109/ICTON.2003.1264650
Rafal Kotynski, T. Nasilowski, Maciej Antkowiak, F. Berghmansa, H. Thienpont
We analyze the mechanisms contributing to the overall sensitivity of optical sensors based on holey fibers. For this purpose we investigate the shift of the Bragg-matched wavelength in a sensor with a Bragg grating as well as the change of birefringence in a polarimetric sensor. For the sake of simplicity we concentrate on the response of the sensor to temperature. We show that the change of refractive index of silica is not always the dominating source of the sensor's response.
{"title":"Sensitivity of holey fiber based sensors","authors":"Rafal Kotynski, T. Nasilowski, Maciej Antkowiak, F. Berghmansa, H. Thienpont","doi":"10.1109/ICTON.2003.1264650","DOIUrl":"https://doi.org/10.1109/ICTON.2003.1264650","url":null,"abstract":"We analyze the mechanisms contributing to the overall sensitivity of optical sensors based on holey fibers. For this purpose we investigate the shift of the Bragg-matched wavelength in a sensor with a Bragg grating as well as the change of birefringence in a polarimetric sensor. For the sake of simplicity we concentrate on the response of the sensor to temperature. We show that the change of refractive index of silica is not always the dominating source of the sensor's response.","PeriodicalId":272700,"journal":{"name":"Proceedings of 2003 5th International Conference on Transparent Optical Networks, 2003.","volume":"111 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124911604","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 : 2003-06-29DOI: 10.1109/ICTON.2003.1264636
M. Bunsen, A. Okamoto
We propose a hologram multiplexing method with the photorefractive beam-fanning speckle. In this method, a bulk photorefractive crystal takes the role of generating various speckle fields as well as storing a number of holograms. The hologram multiplexing and the selective retrieving are demonstrated with the speckled reference beam generated by the beam-fanning effect in a photorefractive BaTiO/sub 3/ crystal. The speckle field of the reference beam to record multiple holograms is varied by changing the spatial phase distribution or the intensity distribution of the original reference beam. We can successfully reconstruct the desired image from multiplexed holograms with the reference beam speckled by the beam-fanning effect in both procedures. This method has the potential for the all-optical control of the multiplexing and the selective retrieving from the multiplexed holograms, besides the simplification of the optical configuration comparing with the conventional speckle multiplexing.
{"title":"Experiment on hologram multiplexing with photorefractive beam-fanning speckle","authors":"M. Bunsen, A. Okamoto","doi":"10.1109/ICTON.2003.1264636","DOIUrl":"https://doi.org/10.1109/ICTON.2003.1264636","url":null,"abstract":"We propose a hologram multiplexing method with the photorefractive beam-fanning speckle. In this method, a bulk photorefractive crystal takes the role of generating various speckle fields as well as storing a number of holograms. The hologram multiplexing and the selective retrieving are demonstrated with the speckled reference beam generated by the beam-fanning effect in a photorefractive BaTiO/sub 3/ crystal. The speckle field of the reference beam to record multiple holograms is varied by changing the spatial phase distribution or the intensity distribution of the original reference beam. We can successfully reconstruct the desired image from multiplexed holograms with the reference beam speckled by the beam-fanning effect in both procedures. This method has the potential for the all-optical control of the multiplexing and the selective retrieving from the multiplexed holograms, besides the simplification of the optical configuration comparing with the conventional speckle multiplexing.","PeriodicalId":272700,"journal":{"name":"Proceedings of 2003 5th International Conference on Transparent Optical Networks, 2003.","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131094759","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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