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5th International Workshop on Laser and Fiber-Optical Networks Modeling, 2003. Proceedings of LFNM 2003.最新文献

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Self-confinement of light whispering gallery waves 自封的光低语着画廊的波浪
5th International Workshop on Laser and Fiber-Optical Networks Modeling, 2003. Proceedings of LFNM 2003. Pub Date : 2003-11-17 DOI: 10.1109/LFNM.2003.1246087
Sergey V. Torchigin
{"title":"Self-confinement of light whispering gallery waves","authors":"Sergey V. Torchigin","doi":"10.1109/LFNM.2003.1246087","DOIUrl":"https://doi.org/10.1109/LFNM.2003.1246087","url":null,"abstract":"Summary form only given. Among the numerous specific properties of whispering gallery (WG) waves the most important one for the problem considered is that the WG group velocity can be much less than the velocity of light. As a result, the energy density in the WG wave and, consequently, the electric field strength which determines the increase in the refraction index in the wave appears to be much greater than in an ordinary wave of the same power. This property allows one to observe the self-action of WG waves under much less power. In this work, an ability of the WG waves to form closed waveguides of various type in the air is considered. These waveguides confine propagation of WG waves in a certain closed region. In this case, nonlinear effects with great time constant can manifest themselves too.","PeriodicalId":368970,"journal":{"name":"5th International Workshop on Laser and Fiber-Optical Networks Modeling, 2003. Proceedings of LFNM 2003.","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131519812","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
Transformation of the polarization distribution in the cross-section of light beam by self-focusing in a medium with spatial dispersion of nonlinearity 非线性空间色散介质中光束自聚焦对光束截面偏振分布的变换
5th International Workshop on Laser and Fiber-Optical Networks Modeling, 2003. Proceedings of LFNM 2003. Pub Date : 2003-11-17 DOI: 10.1109/LFNM.2003.1246061
A. A. Golubkov, V. A. Makarov, I. Perezhogin
{"title":"Transformation of the polarization distribution in the cross-section of light beam by self-focusing in a medium with spatial dispersion of nonlinearity","authors":"A. A. Golubkov, V. A. Makarov, I. Perezhogin","doi":"10.1109/LFNM.2003.1246061","DOIUrl":"https://doi.org/10.1109/LFNM.2003.1246061","url":null,"abstract":"Summary form only given. The self-action of a light beam of the Gaussian profile with a distribution of elliptical polarization uniform in the cross-section in a nonabsorbing medium with spatial dispersion of cubic nonlinearity has been investigated numerically. We have analyzed the dependences of the intensity, the degree of ellipticity and the rotation angle of the main axis of a beam polarization ellipse on the transverse coordinates and length of the medium. It has been established that nonlocality of a nonlinear optical response of the isotropic medium and elliptical polarization of incident radiation strongly affect the threshold conditions of self-focusing and substantially change the character of propagation of Gaussian beams.","PeriodicalId":368970,"journal":{"name":"5th International Workshop on Laser and Fiber-Optical Networks Modeling, 2003. Proceedings of LFNM 2003.","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131614802","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
Application of the full-vector weighted-index method for optical analysis of VCSEL microcavity 全矢量加权指数法在VCSEL微腔光学分析中的应用
5th International Workshop on Laser and Fiber-Optical Networks Modeling, 2003. Proceedings of LFNM 2003. Pub Date : 2003-11-17 DOI: 10.1109/LFNM.2003.1246142
A.A. Kovbasa, A. Shulika, L.V. Lysak
{"title":"Application of the full-vector weighted-index method for optical analysis of VCSEL microcavity","authors":"A.A. Kovbasa, A. Shulika, L.V. Lysak","doi":"10.1109/LFNM.2003.1246142","DOIUrl":"https://doi.org/10.1109/LFNM.2003.1246142","url":null,"abstract":"The mixed analytical-numerical techniques such as weighted index method (WIM) are one of most optimum for optical analysis of VCSEL microcavity because they combine advantages of analytical and numerical approaches, resulted in possibility to investigate theoretically realistic structures. The aim of this work lies in application of full-vector WIM to optical analysis of hot-cavity VCSEL for mode parameters extraction. It is concluded that the computational results presented in this work suggest the weighted-index method as a powerful technique for optical analysis of realistic and complicated VCSEL structures. The improvement directions for decreasing computational error and taking diffraction losses into account have been indicated.","PeriodicalId":368970,"journal":{"name":"5th International Workshop on Laser and Fiber-Optical Networks Modeling, 2003. Proceedings of LFNM 2003.","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126509714","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
One-dimensional nonperiodic photonic bandgap microstrip structure 一维非周期光子带隙微带结构
5th International Workshop on Laser and Fiber-Optical Networks Modeling, 2003. Proceedings of LFNM 2003. Pub Date : 2003-11-17 DOI: 10.1109/LFNM.2003.1246120
V. I. Fesenko, A.V. Kublik, A. Naboka
{"title":"One-dimensional nonperiodic photonic bandgap microstrip structure","authors":"V. I. Fesenko, A.V. Kublik, A. Naboka","doi":"10.1109/LFNM.2003.1246120","DOIUrl":"https://doi.org/10.1109/LFNM.2003.1246120","url":null,"abstract":"One of the ways to implement photonic bandgap (PBG) microstrip structures consist on drilling a periodic pattern through the substrate or etching a one or two dimensional periodic pattern of circles in the ground plane of a microstrip line. In this paper, novel nonperiodic patterns of etched circles in the ground plane of a 50 Ohm microstrip line were studied using experimental measurement.","PeriodicalId":368970,"journal":{"name":"5th International Workshop on Laser and Fiber-Optical Networks Modeling, 2003. Proceedings of LFNM 2003.","volume":"84 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122689241","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
Temperature dependence of the threshold and auger recombination in asymmetric quantum-well heterolasers 非对称量子阱异光激光器中阈值和俄歇复合的温度依赖性
5th International Workshop on Laser and Fiber-Optical Networks Modeling, 2003. Proceedings of LFNM 2003. Pub Date : 2003-11-17 DOI: 10.1117/12.583462
I. Sukhoivanov, O. Mashoshyna, V. Kononenko, Dmitrii Ushakov
{"title":"Temperature dependence of the threshold and auger recombination in asymmetric quantum-well heterolasers","authors":"I. Sukhoivanov, O. Mashoshyna, V. Kononenko, Dmitrii Ushakov","doi":"10.1117/12.583462","DOIUrl":"https://doi.org/10.1117/12.583462","url":null,"abstract":"In this work, the temperature dependence of the lasing threshold in the GalnAs-GaInAsP-InP bi-quantum-well heterolasers with different widths of the quantum wells (5 and 9 nm) has been determined. The AR rate increases practically exponentially in the temperature interval 250 to 350 K. Including into consideration the processes of nonradiative AR allows to take account of the nonequilibrium processes which occur in the active region of the quantum-well lasers more completely and accurately.","PeriodicalId":368970,"journal":{"name":"5th International Workshop on Laser and Fiber-Optical Networks Modeling, 2003. Proceedings of LFNM 2003.","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124481720","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: 4
Formation of the patterns of hexagonal symmetry in thin photosensitive films 感光薄膜中六方对称图案的形成
5th International Workshop on Laser and Fiber-Optical Networks Modeling, 2003. Proceedings of LFNM 2003. Pub Date : 2003-11-17 DOI: 10.1109/LFNM.2003.1246092
V. Miloslavsky, O. Bondarenko, L. A. Ageev
{"title":"Formation of the patterns of hexagonal symmetry in thin photosensitive films","authors":"V. Miloslavsky, O. Bondarenko, L. A. Ageev","doi":"10.1109/LFNM.2003.1246092","DOIUrl":"https://doi.org/10.1109/LFNM.2003.1246092","url":null,"abstract":"In this study we analyzed the hexagonal symmetry pattern formation connected with build-up process of the spontaneous gratings (SGs) in AgCl-Ag films irradiated by P-polarized laser beam under conditions of competition between TE-and TM-waveguide modes. The experiments were performed with thin AgCl-Ag films prepared by means of successive deposition in vacuum of the AgCl layer. The films were irradiated with a focused P-polarized beam from He-Ne laser. We judge about an origin and development of SGs using patterns of small-angle scattering (or small-angle diffraction (SAD)). The hexagons arise under condition of a strong competition of the TM0- and TE0-modes with /spl beta//sub TE0//spl ne//spl beta//sub TM0/ during formation of SGs. The SAD effect plays an important role in this process.","PeriodicalId":368970,"journal":{"name":"5th International Workshop on Laser and Fiber-Optical Networks Modeling, 2003. Proceedings of LFNM 2003.","volume":"167 1-2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120917883","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
Measurement of the angle-angular momentum uncertainty of a light beam 光束角-角动量不确定度的测量
5th International Workshop on Laser and Fiber-Optical Networks Modeling, 2003. Proceedings of LFNM 2003. Pub Date : 2003-11-17 DOI: 10.1109/LFNM.2003.1246106
J. Leach, S. Franke-Arnold, J. Courtial, E. Yao, S. Barnett, M. Padgett
{"title":"Measurement of the angle-angular momentum uncertainty of a light beam","authors":"J. Leach, S. Franke-Arnold, J. Courtial, E. Yao, S. Barnett, M. Padgett","doi":"10.1109/LFNM.2003.1246106","DOIUrl":"https://doi.org/10.1109/LFNM.2003.1246106","url":null,"abstract":"The summary form only given. One of the many forms of the uncertainty principle concerns angular position and angular momentum. We demonstrate this in the case of light: the more the angular position of a light beam is restricted by passing it through a radial aperture, the larger the spread in the beam's angular-momentum components. We prepare laser beams in different angular momentum states by reflecting them from a phase hologram, which determines the orbital-angular-momentum state, and passing them through a quarter-wave plate, which determines the spin state. We can measure the angular-momentum components in the beam in the form of resonances of a novel beam-rotating ring resonator. Our results are in broad agreement with the predictions of the uncertainty principle.","PeriodicalId":368970,"journal":{"name":"5th International Workshop on Laser and Fiber-Optical Networks Modeling, 2003. Proceedings of LFNM 2003.","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122710345","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
Mode-locked and noise phenomena in external cavity fiber grating lasers 外腔光纤光栅激光器中的锁模和噪声现象
5th International Workshop on Laser and Fiber-Optical Networks Modeling, 2003. Proceedings of LFNM 2003. Pub Date : 2003-11-17 DOI: 10.1109/LFNM.2003.1246140
N. Dogru, M. S. Ozyazici
{"title":"Mode-locked and noise phenomena in external cavity fiber grating lasers","authors":"N. Dogru, M. S. Ozyazici","doi":"10.1109/LFNM.2003.1246140","DOIUrl":"https://doi.org/10.1109/LFNM.2003.1246140","url":null,"abstract":"Mode-locked and relative intensity noise (RIN) of hybrid soliton pulse source (HSPS) utilizing raised-cosine fiber Bragg grating is described using couple-mode equations including spontaneous emission noise. It is found that soliton type pulse is generated only limiting tuning range with and without noise. RIN peak does not locate at the fundamental frequency that shows optical resonance due to cavity roundtrip time.","PeriodicalId":368970,"journal":{"name":"5th International Workshop on Laser and Fiber-Optical Networks Modeling, 2003. Proceedings of LFNM 2003.","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128097164","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
Accurate numerical analysis of the truncated elliptic lens 截断椭圆透镜的精确数值分析
5th International Workshop on Laser and Fiber-Optical Networks Modeling, 2003. Proceedings of LFNM 2003. Pub Date : 2003-11-17 DOI: 10.1109/LFNM.2003.1246128
A. Boriskin, A. Nosich
{"title":"Accurate numerical analysis of the truncated elliptic lens","authors":"A. Boriskin, A. Nosich","doi":"10.1109/LFNM.2003.1246128","DOIUrl":"https://doi.org/10.1109/LFNM.2003.1246128","url":null,"abstract":"The Muller integral-equation (MIE) technique is used for the analysis of the focusing properties of the truncated elliptic lens modeled by a smooth dielectric cylinder characterized with a piece-wise \"super-elliptic\" cross section. Such a full-wave mathematically correct method guarantees uniqueness of the solution for arbitrary set of parameters. In the discretization scheme, we also use analytical inversion of the canonical circular-cylinder counterpart of the problem and build a very efficient CAD tool. Numerical results for the near fields are presented and lens-focusing properties are studied for the E-polarization case.","PeriodicalId":368970,"journal":{"name":"5th International Workshop on Laser and Fiber-Optical Networks Modeling, 2003. Proceedings of LFNM 2003.","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133621945","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
Generalized model of TE- and TM-polarized light diffraction on periodical structures of different types TE-和tm -偏振光在不同类型周期性结构上衍射的广义模型
5th International Workshop on Laser and Fiber-Optical Networks Modeling, 2003. Proceedings of LFNM 2003. Pub Date : 2003-11-17 DOI: 10.1109/LFNM.2003.1246131
V. Fitio, B. Ya
{"title":"Generalized model of TE- and TM-polarized light diffraction on periodical structures of different types","authors":"V. Fitio, B. Ya","doi":"10.1109/LFNM.2003.1246131","DOIUrl":"https://doi.org/10.1109/LFNM.2003.1246131","url":null,"abstract":"In this investigation we would like to show that the problem of diffraction on all types of gratings and on two-dimensional crystals, except pure reflecting gratings, can be brought to an infinitely-dimensional system of linear differential equations of the first order in general case with variable coefficients, besides that the character of coefficient variation is being determined by grating type and polarization of the wave propagating inside the periodical structure. Such equation system can be brought to a matrix view, and its properties are studied well by mathematicians. Here, relief grating and two-dimensional phonon crystal are considered. Dielectric constant of periodical structures is presented.","PeriodicalId":368970,"journal":{"name":"5th International Workshop on Laser and Fiber-Optical Networks Modeling, 2003. Proceedings of LFNM 2003.","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134009624","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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