{"title":"A Generic Connection Admission Control in ATM Networks","authors":"H. Zaied","doi":"10.1109/LFNM.2006.251967","DOIUrl":"https://doi.org/10.1109/LFNM.2006.251967","url":null,"abstract":"In this paper we introduced a new call admission control (CAC) based on the virtual link with ultra wide bandwidth. Under the virtual link we mean that we have a reservoir that can accommodate an infinitive number of calls. So in each node we have to attach an auxiliary memory such as magnetic tapes with ultra high capacity to receive all the arriving calls. Traditional CAC will be replaced by two controllers: Virtual CAC (VCAC) and draft CAC (DCAC). The main function of VCAC is to collect all the arriving calls without negotiations depending on its high capacity. DCAC will import the calls from VCAC, sort them into classes according to their service category, give them the appropriate VPI over which they will be carried later on the least loaded link among the outgoing links and export them to the router according to the congestion level of the physical link. The proposed scheme looks like a transistor network. The collector is represented by VCAC, the emitter is represented by DCAC and finally the base is represented by the router. The idea of the proposed strategy can be explained as follows: All the calls are admitted to the virtual memory as they arrive without any delay with respect to the extra large memory size. The virtual memory is divided into segments according to the number of the services (audio, data, video, ...etc) and each segment is divided into a number of blocks size of each is a multiple of cell size (i.e. 53 octets), these blocks have the same number of VP's (for all outgoing links) to be connected with them later (the recommended bandwidth allocation strategy is service and path separation). The block capacity is too much greater than its associated link W. Once the block receives a new call it will spool (roll) it to its associated VP which belongs to the least loaded link, unless it becomes saturated. Once a new room appears in one of the associated VP's in any of the outgoing links it will be occupied by a new call. It is worth noting that the calls will be pushed out by applying the famous rule FIFO: first in first out","PeriodicalId":370622,"journal":{"name":"2006 International Workshop on Laser and Fiber-Optical Networks Modeling","volume":"150 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116696337","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}
A. Glushkov, A. Loboda, V. Khokhlov, G. Prepelitsa
{"title":"Numerical Modelling a Populations Differences Dynamics of the Resonant Levels of Atoms in a Nonrectangular Form Laser Pulse: Optical Bistability Effect","authors":"A. Glushkov, A. Loboda, V. Khokhlov, G. Prepelitsa","doi":"10.1109/LFNM.2006.252078","DOIUrl":"https://doi.org/10.1109/LFNM.2006.252078","url":null,"abstract":"The results of numeric calculation of population kinetics of resonant levels for atoms in the non-rectangular form laser pulse on the basis of the modified Bloch equations are presented. Cited equations describe an interaction between two-level atoms ensemble and resonant radiation with an account of the atomic dipole-dipole interaction. It has been found for a case of ch-1 laser pulse a strengthen possibility of manifestation of the internal optical bistability effect special features in the temporary dynamics of populations for the atomic resonant levels under adiabatic slow changing the acting field intensity in comparison with a case of the rectangular form pulses","PeriodicalId":370622,"journal":{"name":"2006 International Workshop on Laser and Fiber-Optical Networks Modeling","volume":"196 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116382675","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}
{"title":"Control of Modes Coupling, Selection and Enhancement in Wavelength-Scale Optical Microcavity Structures: Applications to Microlasers and Biosensing","authors":"S. Boriskina","doi":"10.1109/LFNM.2006.252070","DOIUrl":"https://doi.org/10.1109/LFNM.2006.252070","url":null,"abstract":"Recent advances and remaining challenges in spectral engineering of wavelength-scale optical microcavity structures supporting modes with narrow linewidths, wide mode spacing, directional emission, and greatly enhanced sensitivity to the environmental changes will be reviewed. General recipes for efficient control and manipulation of modes coupling and selective enhancement in such structures will be discussed","PeriodicalId":370622,"journal":{"name":"2006 International Workshop on Laser and Fiber-Optical Networks Modeling","volume":"687 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122979845","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}
{"title":"Increase of Transmission Speed in Access Networks using 4-Ary Ask Directly Modulated Lasers","authors":"M. A. Velichko, O. Nanii","doi":"10.1109/LFNM.2006.252022","DOIUrl":"https://doi.org/10.1109/LFNM.2006.252022","url":null,"abstract":"In this paper, it was established that in fiber link with chromatic dispersion the use of 4-ary ASK directly modulated laser permits to deliver information to the distance up to 60 km with transmission speed doubled in comparison to NRZ format and with almost the same BER","PeriodicalId":370622,"journal":{"name":"2006 International Workshop on Laser and Fiber-Optical Networks Modeling","volume":"203 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116550901","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}
{"title":"Nonlinear PBG Structures for All-Optical Signal Processing","authors":"A. Glushko, E. Glushko","doi":"10.1109/LFNM.2006.252094","DOIUrl":"https://doi.org/10.1109/LFNM.2006.252094","url":null,"abstract":"In our work, we consider theoretically and experimentally (Ge-Se structures) the photonic bandgap (PBG) systems containing nonlinear insertions for possible applications in all-optical adders and logical gates. The principal schemes of an all-optical adder based on pure one-dimensional and combined 1D-3D (or 2D) PBG materials containing optically nonlinear layers are discussed. The photonic structure behavior with changing intensity is investigated for a few systems consisting of a periodically layered structure covered with an optically nonlinear material and theoretical estimations of the logical gate parameters are made for linear 1D Ge-Se photonic crystal covered with the nonlinear doped glass. Also, the results for 2D linear Ge-Se photonic structure are discussed. It is shown that the beam angular-frequency diagrams contain extremely sensitive areas inside the total reflection range, where the weak nonlinearity leads to dramatic change in light reflection and transmission. Both solitary local modes and pure band modes are considered theoretically.","PeriodicalId":370622,"journal":{"name":"2006 International Workshop on Laser and Fiber-Optical Networks Modeling","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125805644","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}
{"title":"Ultrashort Pulse Generation by Gain Switching using Spice Simulator","authors":"N. Dogru, M. S. Ozyazici","doi":"10.1109/LFNM.2006.251974","DOIUrl":"https://doi.org/10.1109/LFNM.2006.251974","url":null,"abstract":"Gain switching characteristics of quantum well (QW) lasers diode is described by using a SPICE equivalent circuit model which is based on the three-level rate equations. Effects of some laser diode parameters and dc and rf drive conditions on the full-width half maximum (FWHM) of gain switched pulses are investigated. It is shown that FWHM of pulses decrease as the rf current increased whereas these pulses increase as the dc bias is increased. FWHM decreases also for small value of gain compression parameter and spontaneous coupling factor. However, the variation in carrier lifetime in the well does not significantly affect the FWHM of generated pulses","PeriodicalId":370622,"journal":{"name":"2006 International Workshop on Laser and Fiber-Optical Networks Modeling","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127142070","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}
{"title":"Method of Calculation of Multilayer Optical Filters using Thin Films","authors":"V. Manko, A. Manko, G. Sukach","doi":"10.1109/LFNM.2006.252085","DOIUrl":"https://doi.org/10.1109/LFNM.2006.252085","url":null,"abstract":"In the paper, the principles of a multilayer thin-film optical filters calculation with Monte-Carlo method application are considered. This method allows to take into account the influence of a multiple reflection of light quantums in thin-film structures","PeriodicalId":370622,"journal":{"name":"2006 International Workshop on Laser and Fiber-Optical Networks Modeling","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125154470","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}
{"title":"The Analysis of Creation Perspectives of Photonic Crystal Fiber Components","authors":"A. Filipenko, O. Sychova","doi":"10.1109/LFNM.2006.252090","DOIUrl":"https://doi.org/10.1109/LFNM.2006.252090","url":null,"abstract":"The creation perspectives of components on fibers of new type - photonic crystal fibers, possible areas of their application are considered. Comparative analysis PCF and standard quartz fibers are carried out. Advantages and limitations of PCF use in electronic techniques are selected. The further direction of researches is determined","PeriodicalId":370622,"journal":{"name":"2006 International Workshop on Laser and Fiber-Optical Networks Modeling","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128476543","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}
{"title":"Transformation of Laser Pulse Energy on Wavelength 1.06 Micron with Platinum Bolometer","authors":"V. M. Kuzmichov, S. Pogorelov, P. Kohns","doi":"10.1109/LFNM.2006.252033","DOIUrl":"https://doi.org/10.1109/LFNM.2006.252033","url":null,"abstract":"A transformation coefficient of platinum bolometer of laser pulse energy on wavelength 1.06 micron for E-polarized radiation has been determined. A nonlinearity of transformation characteristic of the bolometer and nonuniformity of incident energy distribution along the bolometer length have been kept in mind. An analysis of errors of obtained transformation coefficient of the bolometer has been carried out","PeriodicalId":370622,"journal":{"name":"2006 International Workshop on Laser and Fiber-Optical Networks Modeling","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127312923","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}
{"title":"Array of Gaussian Beams: Structure of Singularities and Orbital Angular Momentum","authors":"Y. Izdebskaya, V. Shvedov, A. Volyar","doi":"10.1109/LFNM.2006.252079","DOIUrl":"https://doi.org/10.1109/LFNM.2006.252079","url":null,"abstract":"We consider an angular momentum of a beam array consisting of singular beams. Such array can carry an extremely high orbital angular momentum that is not eliminated by whatever transformations of a reference frame","PeriodicalId":370622,"journal":{"name":"2006 International Workshop on Laser and Fiber-Optical Networks Modeling","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132275140","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}