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Proceedings of LFNM 2005. 7th International Conference on Laser and Fiber-Optical Networks Modeling, 2005.最新文献

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Non-equidistant structure of a frequency spectrum of a piezoelectric resonator with an arbitrary convex surface 具有任意凸面的压电谐振器频谱的非等距结构
Proceedings of LFNM 2005. 7th International Conference on Laser and Fiber-Optical Networks Modeling, 2005. Pub Date : 2005-12-19 DOI: 10.1109/LFNM.2005.1553254
T. Emelianova, S. Nedorezov, O. Shmaliy
{"title":"Non-equidistant structure of a frequency spectrum of a piezoelectric resonator with an arbitrary convex surface","authors":"T. Emelianova, S. Nedorezov, O. Shmaliy","doi":"10.1109/LFNM.2005.1553254","DOIUrl":"https://doi.org/10.1109/LFNM.2005.1553254","url":null,"abstract":"Frequency spectrum of piezoelectric resonator with an arbitrary convex surface concerning non-equidistance of spectrum to the frequency square is obtained. An analysis of obtained spectrum taking into consideration small curvature 1/R of convex surface is provided. It is show how non-equidistant spectrum depends on orientation of main directions of normal cuts relative to eigenaxes of anisotropic tensor and on relation of main radiuses of curvature of convex surface","PeriodicalId":301144,"journal":{"name":"Proceedings of LFNM 2005. 7th International Conference on Laser and Fiber-Optical Networks Modeling, 2005.","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122924754","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}
引用次数: 0
Distribution of the effective broadening and rms output pulse width for pmd disrorted pulses with RZ and NRZ formats RZ和NRZ格式pmd失真脉冲的有效展宽和有效值输出脉宽分布
Proceedings of LFNM 2005. 7th International Conference on Laser and Fiber-Optical Networks Modeling, 2005. Pub Date : 2005-12-19 DOI: 10.1109/LFNM.2005.1553248
M. Hashemi, A. Zarifkar
{"title":"Distribution of the effective broadening and rms output pulse width for pmd disrorted pulses with RZ and NRZ formats","authors":"M. Hashemi, A. Zarifkar","doi":"10.1109/LFNM.2005.1553248","DOIUrl":"https://doi.org/10.1109/LFNM.2005.1553248","url":null,"abstract":"In this paper we present the polarization mode dispersion (PMD) simulation in optical fiber by Jones formulation. The effect of PMD on the bit shape is calculated and the distribution of the output RMS pulse width and effective broadening are obtained by Monte Carlo method","PeriodicalId":301144,"journal":{"name":"Proceedings of LFNM 2005. 7th International Conference on Laser and Fiber-Optical Networks Modeling, 2005.","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131289417","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}
引用次数: 0
Spectroscopic multiple-vibrational-modeling of Raman gain for FRA design FRA设计中拉曼增益的光谱多重振动建模
Proceedings of LFNM 2005. 7th International Conference on Laser and Fiber-Optical Networks Modeling, 2005. Pub Date : 2005-12-19 DOI: 10.1109/LFNM.2005.1553241
G. Felinskyi
{"title":"Spectroscopic multiple-vibrational-modeling of Raman gain for FRA design","authors":"G. Felinskyi","doi":"10.1109/LFNM.2005.1553241","DOIUrl":"https://doi.org/10.1109/LFNM.2005.1553241","url":null,"abstract":"Multiple pumping fiber Raman amplifiers with theoretical gain bandwidth of 12 THz are becoming more and more essential in wavelength-division-multiplexing optical communication systems with terabit capacity. In this work, the new spectroscopic model for the Raman gain spectrum decomposition in arbitrary optical fiber using multiple vibrational modes is presented. Nonlinear fitting procedure with Levenberg-Marquardt method of Raman gain profile was applied and it gives practically exact approximation of the observed Raman gain spectrum in silica fiber. The integrated intensities of model spectra are coincided with experimental spectrum within <0.3%. The optimal set of Raman gain parameters is compiled to simple analytical expressions that can be integrated and differentiated in symbolic form and are easy to evaluate numerically. Modeling results on the set of basic Raman amplifier characteristics such us: gain ripple, bandwidth, group delay, and noise performance is presented","PeriodicalId":301144,"journal":{"name":"Proceedings of LFNM 2005. 7th International Conference on Laser and Fiber-Optical Networks Modeling, 2005.","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127846482","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}
引用次数: 6
The development of a laser speckle velocimeter 激光散斑测速仪的研制
Proceedings of LFNM 2005. 7th International Conference on Laser and Fiber-Optical Networks Modeling, 2005. Pub Date : 2005-12-19 DOI: 10.1109/LFNM.2005.1553246
A. Aliverdiev, M. Caponero, C. Moriconi, P. Fichera, G. Sagratella
{"title":"The development of a laser speckle velocimeter","authors":"A. Aliverdiev, M. Caponero, C. Moriconi, P. Fichera, G. Sagratella","doi":"10.1109/LFNM.2005.1553246","DOIUrl":"https://doi.org/10.1109/LFNM.2005.1553246","url":null,"abstract":"The paper points out to the progresses carried out in the exploitation of high fast and precise non-contact velocimetry for robot applications. This technique is based on the precise calculation of the common movement of a laser speckle field. We tested our velocimeter with different kinds of surfaces, and different trajectories of the motion. The precision of the velocity measurements strongly depends on the absolute velocity value. For good conditions the relative error can be less 2%","PeriodicalId":301144,"journal":{"name":"Proceedings of LFNM 2005. 7th International Conference on Laser and Fiber-Optical Networks Modeling, 2005.","volume":"152 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116384915","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}
引用次数: 0
Selective interference sensitive photodetector 选择性干涉灵敏光电探测器
Proceedings of LFNM 2005. 7th International Conference on Laser and Fiber-Optical Networks Modeling, 2005. Pub Date : 2005-12-19 DOI: 10.1109/LFNM.2005.1553245
Alexander A Ivanenko, Vasily F Shabanov, A. M. Sysoev, Nikolay P Shestakov
{"title":"Selective interference sensitive photodetector","authors":"Alexander A Ivanenko, Vasily F Shabanov, A. M. Sysoev, Nikolay P Shestakov","doi":"10.1109/LFNM.2005.1553245","DOIUrl":"https://doi.org/10.1109/LFNM.2005.1553245","url":null,"abstract":"Principles of selective interference sensitive photodetector are described. The schemas of R, G, B photodetector with four layers sensitive to interference patterns are presented. Computer calculation of spectral sensitivity band was made for R, G, B-photodetector. The interferometers with an opposing direction of beams are reduced in the field of a location of a photodetector","PeriodicalId":301144,"journal":{"name":"Proceedings of LFNM 2005. 7th International Conference on Laser and Fiber-Optical Networks Modeling, 2005.","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114325803","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}
引用次数: 0
Geometrical, optimization of intracavity contacted oxide confined vertical cavity surface emitting lasers 腔内接触氧化物受限垂直腔面发射激光器的几何优化
Proceedings of LFNM 2005. 7th International Conference on Laser and Fiber-Optical Networks Modeling, 2005. Pub Date : 2005-12-19 DOI: 10.1109/LFNM.2005.1553212
V. Lysak, K. Chang, Y. T. Lee
{"title":"Geometrical, optimization of intracavity contacted oxide confined vertical cavity surface emitting lasers","authors":"V. Lysak, K. Chang, Y. T. Lee","doi":"10.1109/LFNM.2005.1553212","DOIUrl":"https://doi.org/10.1109/LFNM.2005.1553212","url":null,"abstract":"This work presents the simulation of the intracavity contacted oxide confined vertical cavity surface emitting lasers (VCSEL) including the thermal effects. The analysis of thermal, electrical and optical properties of these devices represents the different top mirror radii. Results show the optimal relation between the top mirror and oxide window radii of device is about 1.3-1.5","PeriodicalId":301144,"journal":{"name":"Proceedings of LFNM 2005. 7th International Conference on Laser and Fiber-Optical Networks Modeling, 2005.","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114808060","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}
引用次数: 0
Effect of band structure anisotropy on gain spectra of SQW lasers and amplifiers 波段结构各向异性对SQW激光器和放大器增益谱的影响
Proceedings of LFNM 2005. 7th International Conference on Laser and Fiber-Optical Networks Modeling, 2005. Pub Date : 2005-12-19 DOI: 10.1109/LFNM.2005.1553183
M. Klimenko, O. Shulika, O. Mashoshyna, I. Sukhoivanov
{"title":"Effect of band structure anisotropy on gain spectra of SQW lasers and amplifiers","authors":"M. Klimenko, O. Shulika, O. Mashoshyna, I. Sukhoivanov","doi":"10.1109/LFNM.2005.1553183","DOIUrl":"https://doi.org/10.1109/LFNM.2005.1553183","url":null,"abstract":"The effect of the anisotropy of the valence band on the gain spectra of quantum wells is studied in the frame of kp-theory and envelope function approximation. In this paper shown that the application of axial approximation leads to understated gain. The maximum errors of gain spectra are located in the same points as peaks of gain spectrum at energy axis. Such errors can amount to 18,8% that makes axial approximation inapplicable","PeriodicalId":301144,"journal":{"name":"Proceedings of LFNM 2005. 7th International Conference on Laser and Fiber-Optical Networks Modeling, 2005.","volume":"83 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126274928","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}
引用次数: 0
Parametrical optics effects at the presence of gravitation 引力作用下的参量光学效应
Proceedings of LFNM 2005. 7th International Conference on Laser and Fiber-Optical Networks Modeling, 2005. Pub Date : 2005-12-19 DOI: 10.1109/LFNM.2005.1553198
R. Vlokh
{"title":"Parametrical optics effects at the presence of gravitation","authors":"R. Vlokh","doi":"10.1109/LFNM.2005.1553198","DOIUrl":"https://doi.org/10.1109/LFNM.2005.1553198","url":null,"abstract":"It is shown that in the model of a flat 3D space the time and the gravitation constant G represent in fact material (constitutive) coefficients of the flat space (or the corresponding optical medium) and should, therefore, obey the Neumann principle. Gravitation field of spherical symmetric mass does not lead to the lowering of symmetry of the space and the appearance of anisotropy. In particular, the relations which describe the changes in the refractive indices of the space treated as an optical medium near the massive spherical body under the influence of its gravitation field have been derived. The light velocity depends upon the gravitation field strength and approaches c0 value only if the gravitation field strength tends to zero","PeriodicalId":301144,"journal":{"name":"Proceedings of LFNM 2005. 7th International Conference on Laser and Fiber-Optical Networks Modeling, 2005.","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126284781","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}
引用次数: 0
Principles of dual-mode crystal oscillators designing 双模晶体振荡器设计原理
Proceedings of LFNM 2005. 7th International Conference on Laser and Fiber-Optical Networks Modeling, 2005. Pub Date : 2005-12-19 DOI: 10.1109/LFNM.2005.1553228
A. Kosykh
{"title":"Principles of dual-mode crystal oscillators designing","authors":"A. Kosykh","doi":"10.1109/LFNM.2005.1553228","DOIUrl":"https://doi.org/10.1109/LFNM.2005.1553228","url":null,"abstract":"This is the consequence of the fact that dual-mode oscillator may be used as self-temperature sensing device with excellent static and dynamic measuring resolution. In such devices the best volume coincidence of reference resonator and thermosensor is achieved. However dual-mode excitation of single crystal resonator is vexatious because of complex oscillations interaction in resonator and excitation circuit. In this paper the complex of problems related to dual-mode oscillation excitation is investigated","PeriodicalId":301144,"journal":{"name":"Proceedings of LFNM 2005. 7th International Conference on Laser and Fiber-Optical Networks Modeling, 2005.","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131724294","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}
引用次数: 0
Calculation of the spontaneous emission spatial dependency in semiconductor laser using transmission line model 用传输线模型计算半导体激光器自发发射的空间依赖性
Proceedings of LFNM 2005. 7th International Conference on Laser and Fiber-Optical Networks Modeling, 2005. Pub Date : 2005-12-19 DOI: 10.1109/LFNM.2005.1553182
M. Razaghi, A. Zarifkar, B. Mahalleh, V. Ahmadi
{"title":"Calculation of the spontaneous emission spatial dependency in semiconductor laser using transmission line model","authors":"M. Razaghi, A. Zarifkar, B. Mahalleh, V. Ahmadi","doi":"10.1109/LFNM.2005.1553182","DOIUrl":"https://doi.org/10.1109/LFNM.2005.1553182","url":null,"abstract":"In this paper we calculate the spatial dependency of the spontaneous emission in semiconductor laser cavity using a model based on transmission line laser method (TLLM). Results show that in the simple ridge laser structure, the major part of the spontaneous emission occurs at the middle of the cavity and so uniform spontaneous emission can't be assumed","PeriodicalId":301144,"journal":{"name":"Proceedings of LFNM 2005. 7th International Conference on Laser and Fiber-Optical Networks Modeling, 2005.","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129926693","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}
引用次数: 0
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