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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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Low level phase noise measurement in telecommunication networks 电信网络中的低电平相位噪声测量
Proceedings of LFNM 2005. 7th International Conference on Laser and Fiber-Optical Networks Modeling, 2005. Pub Date : 2005-12-19 DOI: 10.1109/LFNM.2005.1553244
I. Y. Shklyarevskyy
{"title":"Low level phase noise measurement in telecommunication networks","authors":"I. Y. Shklyarevskyy","doi":"10.1109/LFNM.2005.1553244","DOIUrl":"https://doi.org/10.1109/LFNM.2005.1553244","url":null,"abstract":"Wander measurement is important for digital telecommunication networks. When a high quality synchronisation equipment or network points with low wander level should be measured, the accurate results possibility will strongly depend on the correct choice of a measurement instrument. Different wander measurement instruments available in the market has been compared according to their internal phase noise level","PeriodicalId":301144,"journal":{"name":"Proceedings of LFNM 2005. 7th International Conference on Laser and Fiber-Optical Networks Modeling, 2005.","volume":"11 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":"114204956","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
Transition effect at the boundary between nonlinear kerr medium and vacuum accomponied self-phase modulation of light pulse 非线性克尔介质与真空边界的跃迁效应伴随光脉冲的自相位调制
Proceedings of LFNM 2005. 7th International Conference on Laser and Fiber-Optical Networks Modeling, 2005. Pub Date : 2005-12-19 DOI: 10.1109/LFNM.2005.1553206
P. Korotkov, S. Dudka, A. Ivanisik, A.V. Konopatskiy
{"title":"Transition effect at the boundary between nonlinear kerr medium and vacuum accomponied self-phase modulation of light pulse","authors":"P. Korotkov, S. Dudka, A. Ivanisik, A.V. Konopatskiy","doi":"10.1109/LFNM.2005.1553206","DOIUrl":"https://doi.org/10.1109/LFNM.2005.1553206","url":null,"abstract":"In Kerr medium the self-phase modulation of nanosecond laser pulses under quasi-stationary self-focusing is studied. Computations are carried out for additional phase lag, instantaneous frequency and spectrum of pulse. The results of computation and obtained experimental data prove existence of the transition effect, which gives rise to new spectral components on exit boundary of Kerr medium. The spectral components arising due to the transition effect have predominantly Stokes shift up to -100 cm-1 relatively laser frequency","PeriodicalId":301144,"journal":{"name":"Proceedings of LFNM 2005. 7th International Conference on Laser and Fiber-Optical Networks Modeling, 2005.","volume":"52 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":"129404494","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: 1
Periodic structures by amplitude mask 2D in nonlinear liquid medium CS/sub 2/ 非线性液体介质CS/sub /中二维振幅掩膜的周期结构
Proceedings of LFNM 2005. 7th International Conference on Laser and Fiber-Optical Networks Modeling, 2005. Pub Date : 2005-12-19 DOI: 10.1109/LFNM.2005.1553203
E. Alvarado-Mendez, M. Cano-Lara, J.C. Alfonso-Leon, M. Trejo-Durán, J. Estudillo-Ayala, J. Andrade-Lucio, R. Rojas‐Laguna, M. Torres-Cisnerosa, O. Ibarra-Manzano, A. Torres-Jácome, D. May-Arrioja
{"title":"Periodic structures by amplitude mask 2D in nonlinear liquid medium CS/sub 2/","authors":"E. Alvarado-Mendez, M. Cano-Lara, J.C. Alfonso-Leon, M. Trejo-Durán, J. Estudillo-Ayala, J. Andrade-Lucio, R. Rojas‐Laguna, M. Torres-Cisnerosa, O. Ibarra-Manzano, A. Torres-Jácome, D. May-Arrioja","doi":"10.1109/LFNM.2005.1553203","DOIUrl":"https://doi.org/10.1109/LFNM.2005.1553203","url":null,"abstract":"The problem of discrete light is very important from the physical point of view. Waveguides arrays, discrete solitons, optical switching are some applications of periodic structures. Experimental results obtained by periodic structures used in nonlinear liquids media are shown. In particular, we study self-focusing effect in CS2 with amplitude mask 2D with different arrays of circles periodically distributed. In nonlinear liquids the refractive index depends of the light intensity, and ring structures are formed","PeriodicalId":301144,"journal":{"name":"Proceedings of LFNM 2005. 7th International Conference on Laser and Fiber-Optical Networks Modeling, 2005.","volume":"37 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":"132958430","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
Use of the round-trip operator technique for optical resonators with dispersion elements 带色散元件的光学谐振器的往返算子技术的应用
Proceedings of LFNM 2005. 7th International Conference on Laser and Fiber-Optical Networks Modeling, 2005. Pub Date : 2005-12-19 DOI: 10.1109/LFNM.2005.1553170
N. N. Elkin, A. Napartovich, D. V. Vysotsky, V. N. Troshchieva
{"title":"Use of the round-trip operator technique for optical resonators with dispersion elements","authors":"N. N. Elkin, A. Napartovich, D. V. Vysotsky, V. N. Troshchieva","doi":"10.1109/LFNM.2005.1553170","DOIUrl":"https://doi.org/10.1109/LFNM.2005.1553170","url":null,"abstract":"The round-trip operator technique is widely used for dispersionless optical resonators beginning from pioneering studies of Fox and Li. Resonator modes are determined as the eigen-functions of the round-trip operator and may be calculated by means of numerical linear algebra. Corresponding complex eigen-values determine the wavelength shifts relative to reference value and damping factors. Dispersion elements, for example, Bragg mirrors in VCSEL result in dependence of propagation operator on the wavelength and damping factor. We can determine the round-trip operator in this case also, but unknown values of the wavelength and damping factor enter into the operator by a complicated manner. Trial-and-error method for determination of wavelength shifts and damping factors is possible but it is very laborious method. The proposed proximate numerical method for calculation of resonator modes is based on solution of linear eigen-problem for the round-trip operator with reference wavelength and zero damping. The wavelength shifts and damping factors can be calculated by simple formulae using eigenvalues obtained and previously computed effective length of the resonator. Calculations for anti-guided VCSELs were executed for model verification","PeriodicalId":301144,"journal":{"name":"Proceedings of LFNM 2005. 7th International Conference on Laser and Fiber-Optical Networks Modeling, 2005.","volume":"39 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":"123554438","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
Whispering gallery modes in axisymmetric dielectric bodies 轴对称介质体中的窃窃廊模式
Proceedings of LFNM 2005. 7th International Conference on Laser and Fiber-Optical Networks Modeling, 2005. Pub Date : 2005-12-19 DOI: 10.1109/LFNM.2005.1553232
M. Gorodetsky, A. E. Fomin
{"title":"Whispering gallery modes in axisymmetric dielectric bodies","authors":"M. Gorodetsky, A. E. Fomin","doi":"10.1109/LFNM.2005.1553232","DOIUrl":"https://doi.org/10.1109/LFNM.2005.1553232","url":null,"abstract":"Using quasiclassical approach rather precise analytical approximations for the eigenfrequencies of whispering gallery modes in convex axisymmetric bodies may be found. We use the eikonal method to analyze the limits of precision of this approach using as a practical example spheroidal dielectric cavity. The series obtained for the calculation of eigenfrequency is compared with the known series for dielectric sphere","PeriodicalId":301144,"journal":{"name":"Proceedings of LFNM 2005. 7th International Conference on Laser and Fiber-Optical Networks Modeling, 2005.","volume":"4 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":"127805947","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
Influence of nonuniform temperature distribution on reflection spectrum of top mirror in intracavity-contacted oxide-confined VCSELs 非均匀温度分布对腔内接触氧化约束vcsel顶镜反射光谱的影响
Proceedings of LFNM 2005. 7th International Conference on Laser and Fiber-Optical Networks Modeling, 2005. Pub Date : 2005-12-19 DOI: 10.1109/LFNM.2005.1553213
A. Dyomin, V. Lysak, I. O. Zinkovska
{"title":"Influence of nonuniform temperature distribution on reflection spectrum of top mirror in intracavity-contacted oxide-confined VCSELs","authors":"A. Dyomin, V. Lysak, I. O. Zinkovska","doi":"10.1109/LFNM.2005.1553213","DOIUrl":"https://doi.org/10.1109/LFNM.2005.1553213","url":null,"abstract":"The thermal dependence of mirror reflective properties in oxide-confined VCSEL is investigated. The temperature distribution over the cavity versus applied current is calculated. The refractive indexes of the mirror layers are redefined by using the temperature coefficients, and changes in radial reflectance spectra of the mirror are analyzed. Results show a shift of stopband DBR at different injection currents and the formation of the temperature lens in the mirror due to decreasing the temperature close to edge of oxide windows","PeriodicalId":301144,"journal":{"name":"Proceedings of LFNM 2005. 7th International Conference on Laser and Fiber-Optical Networks Modeling, 2005.","volume":"14 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":"131564846","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: 1
Lasing of circular photonic molecules composed of three and four microdisks 由三个和四个微盘组成的圆形光子分子的激光
Proceedings of LFNM 2005. 7th International Conference on Laser and Fiber-Optical Networks Modeling, 2005. Pub Date : 2005-12-19 DOI: 10.1109/LFNM.2005.1553186
E. Smotrova, E. Semenova, A. Nosich, T. Benson, P. Sewell
{"title":"Lasing of circular photonic molecules composed of three and four microdisks","authors":"E. Smotrova, E. Semenova, A. Nosich, T. Benson, P. Sewell","doi":"10.1109/LFNM.2005.1553186","DOIUrl":"https://doi.org/10.1109/LFNM.2005.1553186","url":null,"abstract":"Photonic molecules (PMs) composed of several identical active microdisks placed in a circle are investigated in this paper. We study the lasing eigenvalue problems for such PMs as electromagnetic field boundary value problems formulated in special manner, which enables one to extract not only natural frequencies but also thresholds of optical modes. The problem is reduced to an infinite matrix equation of the Fredholm second kind. Then we use a secant method to compute the roots of truncated determinant equation that converge to the eigenvalues of original problem when the determinant size is taken progressively larger. Here, all modes in a circular PM composed of M microdisks split into 2M independent symmetry classes. Coupling of microcavities leads to the shift in frequencies and modification of thresholds in comparison to the single microdisk. With carefully tuned separation it is possible to achieve a considerable reduction of thresholds in PMs composed of three and four microdisks","PeriodicalId":301144,"journal":{"name":"Proceedings of LFNM 2005. 7th International Conference on Laser and Fiber-Optical Networks Modeling, 2005.","volume":"11 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":"126831379","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
Quasisolitons formation and frequency modulation under conditions of non-stationary double resonance in common-upper-level scheme with great inhomogeneous broadening of quantum transition lines 量子跃迁线非均匀展宽的共上能级非平稳双共振下准孤立子的形成和调频
Proceedings of LFNM 2005. 7th International Conference on Laser and Fiber-Optical Networks Modeling, 2005. Pub Date : 2005-12-19 DOI: 10.1109/LFNM.2005.1553197
A. E. Dmitriev, O. M. Parshkov
{"title":"Quasisolitons formation and frequency modulation under conditions of non-stationary double resonance in common-upper-level scheme with great inhomogeneous broadening of quantum transition lines","authors":"A. E. Dmitriev, O. M. Parshkov","doi":"10.1109/LFNM.2005.1553197","DOIUrl":"https://doi.org/10.1109/LFNM.2005.1553197","url":null,"abstract":"Transient regime of common-upper-level scheme double resonance is studied numerically. It was shown that in the presence of resonance detunings in channels of interaction and with taking into account of inhomogeneous broadening of resonant transition lines the process of stationary gained signal pulse forming is accompanied with signal carrier frequency pulling to the value that is corresponding some condition. This relates frequency detunings with transition central frequencies and differs from such conditions for Raman scattering. In some cases. Satisfaction of this condition provides the effective conversion of pump pulse energy into signal one. Depends on frequency detuning values one- or two-pulse structure will arise in signal channel. To vary these detunings it is possible to manipulate of signal pulse magnitudes and of time shift between them","PeriodicalId":301144,"journal":{"name":"Proceedings of LFNM 2005. 7th International Conference on Laser and Fiber-Optical Networks Modeling, 2005.","volume":"28 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114109576","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
Ultra-thin quantum wells and fractional monolayer quantum dots of II-IV semiconductors for optoelectronic applicatons 用于光电应用的II-IV半导体的超薄量子阱和分数层量子点
Proceedings of LFNM 2005. 7th International Conference on Laser and Fiber-Optical Networks Modeling, 2005. Pub Date : 2005-12-19 DOI: 10.1109/LFNM.2005.1553257
I. Bernandez-Calderon, A. Alfaro-Martínez, M. García-Rocha
{"title":"Ultra-thin quantum wells and fractional monolayer quantum dots of II-IV semiconductors for optoelectronic applicatons","authors":"I. Bernandez-Calderon, A. Alfaro-Martínez, M. García-Rocha","doi":"10.1109/LFNM.2005.1553257","DOIUrl":"https://doi.org/10.1109/LFNM.2005.1553257","url":null,"abstract":"CdTe/ZnTe and CdSe/ZnSe ultra-thin quantum wells (UTQW) with thickness of few monolayers present very strong excitonic emission and can be combined to cover the red-blue spectral range. They are grown by atomic layer epitaxy and the emission from thickness fluctuations can be completely avoided in many cases by choosing the appropriate growth parameters. Submonolayer coverage of CdSe produces fractional monolayer quantum dots (FMQD) which present very narrow blue emission, indicating a high degree of uniformity in size and shape. These UTQWs and FMQDs appear as promising candidates for the elaboration of red to blue light emission devices based on II-VI compounds","PeriodicalId":301144,"journal":{"name":"Proceedings of LFNM 2005. 7th International Conference on Laser and Fiber-Optical Networks Modeling, 2005.","volume":"26 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":"122629154","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
Simulation of optical field for resonant cavity photodetectors using the finite difference time domain 谐振腔光电探测器光场的时域有限差分模拟
Proceedings of LFNM 2005. 7th International Conference on Laser and Fiber-Optical Networks Modeling, 2005. Pub Date : 2005-12-19 DOI: 10.1109/LFNM.2005.1553249
M. Soroosh, A. Zarifkar, M. Moravvej-Farshi
{"title":"Simulation of optical field for resonant cavity photodetectors using the finite difference time domain","authors":"M. Soroosh, A. Zarifkar, M. Moravvej-Farshi","doi":"10.1109/LFNM.2005.1553249","DOIUrl":"https://doi.org/10.1109/LFNM.2005.1553249","url":null,"abstract":"In this paper, we calculate the optical electric and magnetic fields in the resonant cavity photodetector, using the finite difference time domain (FDTD) method. Also, we consider the effects of the reflection coefficients and the cavity length on the optical field distribution","PeriodicalId":301144,"journal":{"name":"Proceedings of LFNM 2005. 7th International Conference on Laser and Fiber-Optical Networks Modeling, 2005.","volume":"29 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":"121669637","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: 1
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