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Proceedings of 1995 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference最新文献

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Jaggedness free C-OFDR for optical components characterization 用于光学元件表征的无锯齿C-OFDR
Proceedings of 1995 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference Pub Date : 1995-07-24 DOI: 10.1109/SBMOMO.1995.509684
R. Passy, J. P. von der Weid
{"title":"Jaggedness free C-OFDR for optical components characterization","authors":"R. Passy, J. P. von der Weid","doi":"10.1109/SBMOMO.1995.509684","DOIUrl":"https://doi.org/10.1109/SBMOMO.1995.509684","url":null,"abstract":"High resolution and high sensitivity optical components characterization was performed with a jaggedness free coherent optical frequency domain reflectometry (OFDR) with multi-electrode DFB laser. The fading noise was reduced to less than 1 dB by using a double optical frequency sweep, improving the accuracy of insertion loss measurements. Sensitivities down to -105 dB were achieved with minute measurement times.","PeriodicalId":225072,"journal":{"name":"Proceedings of 1995 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114271200","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
Optimizing integrated-optics polarizers for maximum polarization isolation 优化集成光学偏振器，实现最大的偏振隔离
Proceedings of 1995 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference Pub Date : 1995-07-24 DOI: 10.1109/SBMOMO.1995.509601
F. Moreira
{"title":"Optimizing integrated-optics polarizers for maximum polarization isolation","authors":"F. Moreira","doi":"10.1109/SBMOMO.1995.509601","DOIUrl":"https://doi.org/10.1109/SBMOMO.1995.509601","url":null,"abstract":"Available technologies currently permit the construction of optical integrated polarizers employing accurate features with dimensions considerably smaller than the operation wavelength. These devices may have a relatively small number of grooves and rely on the wave-polarization dependence of the groove scattering to achieve their results. To achieve optimum performance (e.g., maximum polarization isolation) they must be modeled with an accuracy only possible through the use of rigorous vector diffraction theory. One such technique is applied to analyze and design perfectly conducting polarizers with finite number of arbitrarily-shaped features. The currents flowing on the grooves' surfaces are rigorously obtained, and from them the scattered field is determined. As an application example, the dimensions of the first and last grooves of a 20-triangular-grooves polarizer, operating at 1 /spl mu/m wavelength, are optimized to yield a polarization isolation of 57 dB.","PeriodicalId":225072,"journal":{"name":"Proceedings of 1995 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115249274","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
Mutual impedance of conformal cylindrical microstrip antenna arrays with a protection layer 带保护层的共形圆柱形微带天线阵列的相互阻抗
Proceedings of 1995 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference Pub Date : 1995-07-24 DOI: 10.1109/SBMOMO.1995.509639
C. M. Da Silva, J. Lacava
{"title":"Mutual impedance of conformal cylindrical microstrip antenna arrays with a protection layer","authors":"C. M. Da Silva, J. Lacava","doi":"10.1109/SBMOMO.1995.509639","DOIUrl":"https://doi.org/10.1109/SBMOMO.1995.509639","url":null,"abstract":"A model for mutual impedance calculation in probe fed conformal cylindrical microstrip antenna arrays, covered by a protection layer, is presented. The model is based on the Green's function for multilayered cylindrical structures calculated in the Fourier domain. The integral equations for unknown current distributions on the microstrip elements are solved by the method of moments (MOM). As an application, the mutual impedance between two wraparound antennas is calculated.","PeriodicalId":225072,"journal":{"name":"Proceedings of 1995 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132475597","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
Optical intensity modulator based on electrically induced periodic structure 基于电致周期结构的光强调制器
Proceedings of 1995 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference Pub Date : 1995-07-24 DOI: 10.1109/SBMOMO.1995.509696
M.T. Camargo Silva, P. Herczfeld
{"title":"Optical intensity modulator based on electrically induced periodic structure","authors":"M.T. Camargo Silva, P. Herczfeld","doi":"10.1109/SBMOMO.1995.509696","DOIUrl":"https://doi.org/10.1109/SBMOMO.1995.509696","url":null,"abstract":"An optical intensity modulator based on electrically induced periodic structure in a pn diode is reported. The interaction of the microwave electric field and the pn junction carriers results in a periodic structure which modulates the light intensity. Simulations have shown that a device 370 /spl mu/m long, operating at -4.0 V, presents a bandwidth of 6.5 GHz at a modulation depth of 0.5 and an optical intrinsic loss of only 0.33 dB.","PeriodicalId":225072,"journal":{"name":"Proceedings of 1995 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131116565","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
A finite element analysis of a radiating slot in guiding structures 导向结构辐射槽的有限元分析
Proceedings of 1995 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference Pub Date : 1995-07-24 DOI: 10.1109/SBMOMO.1995.509670
R. Coccioli, M. Fallai, G. Pelosi, U. D'Elia, F. Lomaglio
{"title":"A finite element analysis of a radiating slot in guiding structures","authors":"R. Coccioli, M. Fallai, G. Pelosi, U. D'Elia, F. Lomaglio","doi":"10.1109/SBMOMO.1995.509670","DOIUrl":"https://doi.org/10.1109/SBMOMO.1995.509670","url":null,"abstract":"A new method is proposed for the analysis of a transverse radiating slot coupled to a non-homogeneous guiding structure. Using the finite element method (FEM), arbitrarily complex cross-section guiding structures can be characterized and then, by means of an application of the reciprocity theorem, coupled to the slot. This approach overcomes the restrictions of previous methods, based on an application of method of moments (MoM), requiring the knowledge of the guiding structure Green's function. Further refinement of the computed radiated field is obtained by taking into account also the contribution arising from the diffraction at the edge of the perfectly conducting surface (of the rectangular waveguide walls) in which the slot resides.","PeriodicalId":225072,"journal":{"name":"Proceedings of 1995 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127027638","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
Stationary measurement of the response time in reversible optical recording materials 可逆光学记录材料响应时间的平稳测量
Proceedings of 1995 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference Pub Date : 1995-07-24 DOI: 10.1109/SBMOMO.1995.509663
S. Bian, J. Frejlich
{"title":"Stationary measurement of the response time in reversible optical recording materials","authors":"S. Bian, J. Frejlich","doi":"10.1109/SBMOMO.1995.509663","DOIUrl":"https://doi.org/10.1109/SBMOMO.1995.509663","url":null,"abstract":"We report a steady-state continuous technique for the measurement of the response-time in reversible optical recording materials. This method is based on phase modulation and homodyne detection techniques and is particularly suited for fast materials. Experiment is carried out using an undoped semi-insulating GaAs crystal.","PeriodicalId":225072,"journal":{"name":"Proceedings of 1995 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125290247","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
ASK/PSK Modulator in Planar Structures 平面结构中的ASK/PSK调制器
Proceedings of 1995 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference Pub Date : 1995-07-24 DOI: 10.1109/SBMOMO.1995.509677
R. Dalmaso, H. Abdalla
{"title":"ASK/PSK Modulator in Planar Structures","authors":"R. Dalmaso, H. Abdalla","doi":"10.1109/SBMOMO.1995.509677","DOIUrl":"https://doi.org/10.1109/SBMOMO.1995.509677","url":null,"abstract":"T h s work consists of the conception of amplitude and phase modulators in planar structures using Beam Lead PIN diodes, with applicatiom in microwave and millimeter wave frequencies. An ASWPSK modulator using planar structures was designed to operate at microwave frequencies.","PeriodicalId":225072,"journal":{"name":"Proceedings of 1995 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference","volume":"100 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115210263","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
550 /spl Aring/ tunable InGaAsP/InP MQW grating-assisted vertical wavelength-selective filter 550 /spl ing/可调谐InGaAsP/InP MQW光栅辅助垂直波长选择滤波器
Proceedings of 1995 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference Pub Date : 1995-07-24 DOI: 10.1109/SBMOMO.1995.509599
M.T.C. Silva, A. Calligaris
{"title":"550 /spl Aring/ tunable InGaAsP/InP MQW grating-assisted vertical wavelength-selective filter","authors":"M.T.C. Silva, A. Calligaris","doi":"10.1109/SBMOMO.1995.509599","DOIUrl":"https://doi.org/10.1109/SBMOMO.1995.509599","url":null,"abstract":"It is reported, for the first time, a tunable grating-assisted vertical wavelength-selective filter based on InGaAsP/InP MQW. The filter presents a tunability range of 550 /spl Aring/ at 6.0 V, an optical and electrical bandwidth of 45 /spl Aring/ and 1.5 GHz, respectively. For unitary coupling efficiency the length is only 2.55 mm with 7.24 dB intrinsic loss.","PeriodicalId":225072,"journal":{"name":"Proceedings of 1995 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference","volume":"95 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115225622","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
Modeling of scattering by particle on layered substrate 层状基底上粒子散射的模拟
Proceedings of 1995 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference Pub Date : 1995-07-24 DOI: 10.1109/SBMOMO.1995.509658
Y. Eremin, N. Orlov
{"title":"Modeling of scattering by particle on layered substrate","authors":"Y. Eremin, N. Orlov","doi":"10.1109/SBMOMO.1995.509658","DOIUrl":"https://doi.org/10.1109/SBMOMO.1995.509658","url":null,"abstract":"Light scattering by a penetrable particle at the surface of a layered substrate is investigated. The complete mathematical model is analyzed using the method of discrete sources. The results of the investigation are compared with the numerical and experimental data.","PeriodicalId":225072,"journal":{"name":"Proceedings of 1995 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124840876","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
Green-red light generation and propagation in LiF films 绿红光在liff薄膜中的产生和传播
Proceedings of 1995 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference Pub Date : 1995-07-24 DOI: 10.1109/SBMOMO.1995.509660
G. Baldacchini, M. Cremona, G. d'Auria, R. Montereali, M. Montecchi, S. Pelli, G. Righini, L.C.S. do Carmo
{"title":"Green-red light generation and propagation in LiF films","authors":"G. Baldacchini, M. Cremona, G. d'Auria, R. Montereali, M. Montecchi, S. Pelli, G. Righini, L.C.S. do Carmo","doi":"10.1109/SBMOMO.1995.509660","DOIUrl":"https://doi.org/10.1109/SBMOMO.1995.509660","url":null,"abstract":"Low energy electron bombardment of LiF polycrystalline films induces an efficient formation of optical active electronic defect emitting in the visible region of the spectrum from green to red at room temperature. A sizeable optical gain coefficient has been measured in the colored region. For the first time light waveguiding has been observed in a LiF film. These result are promising for light generation and propagation in optoelectronic devices based on this interesting material.","PeriodicalId":225072,"journal":{"name":"Proceedings of 1995 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129659863","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: 3
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