5th International Workshop on Laser and Fiber-Optical Networks Modeling, 2003. Proceedings of LFNM 2003.最新文献_第3页

Influence of gain nonlinearity on the second order harmonic distortion in semiconductor lasers 增益非线性对半导体激光器二阶谐波畸变的影响

5th International Workshop on Laser and Fiber-Optical Networks Modeling, 2003. Proceedings of LFNM 2003. Pub Date : 2003-11-17 DOI: 10.1109/LFNM.2003.1246136

V. Lysak, R. Schatz, A. Shulika, I. Sukhoivanov

引用次数: 0

Precision rangefinder based on a two-wavelength laser diode 基于双波长激光二极管的精密测距仪

5th International Workshop on Laser and Fiber-Optical Networks Modeling, 2003. Proceedings of LFNM 2003. Pub Date : 2003-11-17 DOI: 10.1109/LFNM.2003.1246071

V. Kozlov, V. Kononenko, I. Manak

引用次数: 0

A vectorial model for transverse mode selection in vertical-cavity surface-emitting lasers 垂直腔面发射激光器横向模式选择的矢量模型

5th International Workshop on Laser and Fiber-Optical Networks Modeling, 2003. Proceedings of LFNM 2003. Pub Date : 2003-11-17 DOI: 10.1109/LFNM.2003.1246154

T. Rossler, J. Moloney, T. Ackemann

引用次数: 0

Simulation of energy absorption in waveguides with structured impurities 含结构杂质波导中能量吸收的模拟

5th International Workshop on Laser and Fiber-Optical Networks Modeling, 2003. Proceedings of LFNM 2003. Pub Date : 2003-11-17 DOI: 10.1109/LFNM.2003.1246130

V. Katok, V.G. Levandovskyy, Y. D. Shchepkina

{"title":"Simulation of energy absorption in waveguides with structured impurities","authors":"V. Katok, V.G. Levandovskyy, Y. D. Shchepkina","doi":"10.1109/LFNM.2003.1246130","DOIUrl":"https://doi.org/10.1109/LFNM.2003.1246130","url":null,"abstract":"A theory of light propagation in fibers has been devised in sufficient details now but we can't say the same thing about fibers with statistical inhomogeneity. The presence of impurities and microstructure disturbance in the core and cladding materials may be responsible for propagation losses. Here we shall consider the influence of nonhomogeneity of cladding material on linearly-polarized LP/sub 01/-mode absorption in weakly guiding single-mode two-layered. The following model of fiber is proposed: a core with refraction index n1=1.45 - 1.445 (including dispersion effect for free wavelength /spl lambda/=1 16 /spl mu/m) and radius a=8 /spl mu/m and microvoids of radius R and concentration no embedded into cladding material. These small spheres have a thin film (size of d so that d/R/spl ap/0.01) with hydroxyl (OH-groups). It is known that core and cladding material in modern technology are formed by precipitation from vapour. We consider here the scattering at nonhomogeneities is only into cladding material because a core is formed usually at higher temperature that retard the implantation of hydroxyl. The one-oscillator model with damping have been used for calculation of film dielectric constant. We applied the relation of Maxwell-Garnett-type for calculation of effective dielectric permeability of slightly dispersed cladding material. After series of intricate transformations one may obtain the expression for imaginary part of cladding dielectric function that characterizes the absorption effect in the system. It is known that the parameters of linear-polarized LP/sub 01/-mode propagation into regular two-layer fibers may be obtained from specific characteristic equation. The approximation of perturbation theory is also used.","PeriodicalId":368970,"journal":{"name":"5th International Workshop on Laser and Fiber-Optical Networks Modeling, 2003. Proceedings of LFNM 2003.","volume":"48 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":"134112592","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

Carrier recovery dynamics after ultrashort pulse propagation in asymmetrical multiple quantum well traveling wave semiconductor optical amplifiers 非对称多量子阱行波半导体光放大器中超短脉冲传播后的载流子恢复动力学

5th International Workshop on Laser and Fiber-Optical Networks Modeling, 2003. Proceedings of LFNM 2003. Pub Date : 2003-11-17 DOI: 10.1109/LFNM.2003.1246117

V. Lysak, H. Kawaguchi, I. Sukhoivanov, A. Shulika

引用次数: 0

The light amplification effect in the process of an electron scattering on a nucleus in a strong laser field 强激光场中电子在原子核上散射过程中的光放大效应

5th International Workshop on Laser and Fiber-Optical Networks Modeling, 2003. Proceedings of LFNM 2003. Pub Date : 2003-11-17 DOI: 10.1109/LFNM.2003.1246091

S. Roshchupkin, V.A. Tsibul'nik

引用次数: 0

Holographic generation and three-dimensional rotation of arrays of optical tweezers 光镊阵列的全息生成和三维旋转

5th International Workshop on Laser and Fiber-Optical Networks Modeling, 2003. Proceedings of LFNM 2003. Pub Date : 2003-11-17 DOI: 10.1109/LFNM.2003.1246103

J. Leach, P. Jordan, E. Yao, M. Padgett, J. Courtial

引用次数: 0

Use of electrical equivalent circuits at simulation optoelectronic systems 等效电路在模拟光电系统中的应用

5th International Workshop on Laser and Fiber-Optical Networks Modeling, 2003. Proceedings of LFNM 2003. Pub Date : 2003-11-17 DOI: 10.1109/LFNM.2003.1246077

D. V. Bondarenko

引用次数: 1

Ising- and Bloch fronts in 2D parametric wave mixing 二维参数波混频中的Ising和Bloch锋面

5th International Workshop on Laser and Fiber-Optical Networks Modeling, 2003. Proceedings of LFNM 2003. Pub Date : 2003-11-17 DOI: 10.1109/LFNM.2003.1246088

Y. Larionova, A. Esteban-Martín, U. Peschel, C. Weiss

{"title":"Ising- and Bloch fronts in 2D parametric wave mixing","authors":"Y. Larionova, A. Esteban-Martín, U. Peschel, C. Weiss","doi":"10.1109/LFNM.2003.1246088","DOIUrl":"https://doi.org/10.1109/LFNM.2003.1246088","url":null,"abstract":"In optical systems, in which light is generated by a degenerate, phase-matched wave mixing process, a field can be described by a real-valued function of space and time. Due to the real-valued nature of the field (a consequence of the phase matching between pump and generated wave) one would expect the phase domains to be separated by \"black\" domain walls, across which the amplitude of the field crosses zero. However, we have experimentally observed that besides Ising fronts (real field) there are also Bloch fronts (complex field) in the field generated by degenerate four wave mixing in a BaTiO/sub 3/-resonator. We have applied the 2D Fourier transform technique and a fitting procedure for reconstructing the complex field and the phase and amplitude structure of the fronts. We find that the Fourier transform technique is more generally applicable and the experiment shows that it works well. Numerical solutions of the model are in a good agreement with the experiment concerning the presence of Ising and Bloch type fronts and changing in phase by /spl pi/ across the front (Bloch as well of Ising type). To allow further tests of this model, an improved version of the four wave mixing experiment has to be set.","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":"127171057","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

Optical filters with use of optical waveguide bends 使用光波导弯曲的光学滤光片

5th International Workshop on Laser and Fiber-Optical Networks Modeling, 2003. Proceedings of LFNM 2003. Pub Date : 2003-11-17 DOI: 10.1109/LFNM.2003.1246129

T. Gerasimchuk, V. Katok, A. Manko

{"title":"Optical filters with use of optical waveguide bends","authors":"T. Gerasimchuk, V. Katok, A. Manko","doi":"10.1109/LFNM.2003.1246129","DOIUrl":"https://doi.org/10.1109/LFNM.2003.1246129","url":null,"abstract":"Use of fiber lightguides as directing systems is caused by performance of total reflection conditions. One of conditions is excess of critical value of the hade. Thus, the critical angle is defined with respect to refractive index of the core and cover of fiber lightguide. In such cases, fiber transfer constant becomes dependent on wavelength, and optical fiber acquires filtering properties. One of the factor for determining presence of dispersion in the cover is the fiber bends. The usage of optical fiber bends to solve the tasks of optical signals filtration is of interest. Transfer characteristics of planar optical waveguide sections containing a bend are investigated in the offered work. The researches were carried out in the range of wavelengths 0,8-1,6 mkm. Thus, the dependence of the refraction index on wavelength was described by the Sellmeier's formula. The method of losses account on the optical waveguide bends, was used to define transfer characteristics. Calculations were carried out for optical waveguides consisting of different kinds of the optical glass. The results of calculations prove the presence of transmission characteristics dependence of optical waveguide bends on wavelength. This fact can successfully be used for creation of optical filters by choice of glass structure, radius and number of bends. The search and synthesis of new glass structures is of interest for this purpose.","PeriodicalId":368970,"journal":{"name":"5th International Workshop on Laser and Fiber-Optical Networks Modeling, 2003. Proceedings of LFNM 2003.","volume":"24 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":"127415067","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