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Applications of Photonic Technology最新文献

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Reduction of stress cracking in micromachining of glass by preheating of samples 通过样品预热减少玻璃微加工中的应力开裂
Applications of Photonic Technology Pub Date : 2003-02-01 DOI: 10.1117/12.473933
M. Argument, K. Chau, Y. Tsui, R. Fedosejevs
{"title":"Reduction of stress cracking in micromachining of glass by preheating of samples","authors":"M. Argument, K. Chau, Y. Tsui, R. Fedosejevs","doi":"10.1117/12.473933","DOIUrl":"https://doi.org/10.1117/12.473933","url":null,"abstract":"Laser micromachining may be used for a variety of applications including drilling holes or creating trenches in dielectric materials. Cracking around the ablated features can be a significant problem for many applications, particularly when micromachining glass. One possible method for crack reduction, investigated here, involves heating of the substrate during ablation. This leads to a more ductile material that is more able to withstand the thermal shock of the ablation process. In order to increase the ductility, the glass targets are heated by physical contact with an electric heating element. The results of micromachining are analyzed using an optical microscope. The amount of cracking is quantified in terms of the number of visible radial cracks. For nanosecond micromachining, a reduction in the number of cracks and an improvement in the quality of the holes are observed as the glass is heated. The relative improvement using heated substrates and nanosecond pulses is also compared to femtosecond ablation of room temperature substrates.","PeriodicalId":342015,"journal":{"name":"Applications of Photonic Technology","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125248816","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
Quasi-soliton propagation along a dispersion-profiled fibre using second-order moment theory 利用二阶矩理论沿色散型光纤的准孤子传播
Applications of Photonic Technology Pub Date : 2003-02-01 DOI: 10.1117/12.473816
A. Gajadharsingh, P. Bélanger
{"title":"Quasi-soliton propagation along a dispersion-profiled fibre using second-order moment theory","authors":"A. Gajadharsingh, P. Bélanger","doi":"10.1117/12.473816","DOIUrl":"https://doi.org/10.1117/12.473816","url":null,"abstract":"We show, through second order moment theory, the existence of a new regime of self-similar chirped-solitary wave in an appropriately dispersion-profiled fibre. This study completes the concept of quasi-solitons introduced by Kumar and Hasegawa. Theory reveals the existence of an invariant relation respected by quasi-solitons. This invariant relation can be fully recovered by the usual variational approach of the non-linear Schroedinger equation (NLS) and it can be used to study non-linear pulse propagation in constant dispersion optical fibers and ultimately for dispersion management. The work has been carried out for the lossless as well as for the lossy case.","PeriodicalId":342015,"journal":{"name":"Applications of Photonic Technology","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131844567","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
The intensity ratio alignment technique in photoelastic modulation ellipsometry and polarimetry 光弹性调制椭偏和偏振法中的强度比对准技术
Applications of Photonic Technology Pub Date : 2003-02-01 DOI: 10.1117/12.474392
Y. Chao
{"title":"The intensity ratio alignment technique in photoelastic modulation ellipsometry and polarimetry","authors":"Y. Chao","doi":"10.1117/12.474392","DOIUrl":"https://doi.org/10.1117/12.474392","url":null,"abstract":"The concept of intensity ratio alignment technique will be introduced by comparing it with the conventional null technique. For in situ/real time monitoring the plasma etching process, we will introduce a fixed incident angle alignment technique for a photoelastic modulation ellipsometer. In addition to ellipsometry, we will introduce a photoelastic modulation polarimetry to measure the twisted angle and phase retardation of a twisted nematic liquid.","PeriodicalId":342015,"journal":{"name":"Applications of Photonic Technology","volume":"83 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131755911","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: 2
Comparison of BER measurements in a FFH-OCDMA system with incoherent and coherent sources 非相干和相干FFH-OCDMA系统误码率测量的比较
Applications of Photonic Technology Pub Date : 2003-02-01 DOI: 10.1117/12.474050
D. Wei, R. Slavík, J. Magné, S. Larochelle
{"title":"Comparison of BER measurements in a FFH-OCDMA system with incoherent and coherent sources","authors":"D. Wei, R. Slavík, J. Magné, S. Larochelle","doi":"10.1117/12.474050","DOIUrl":"https://doi.org/10.1117/12.474050","url":null,"abstract":"Bit error rate (BER) performance comparison in a FFH-OCDMA system with incoherent and coherent optical sources is performed by using a superfluorescent fiber source as an incoherent source and a single-mode multiwavelength fiber laser as a coherent source. Experimental results show that, the power penalty associated with the beat noise is approximately 1 dB. A measurement of the beat noise RF spectrum, with a matched encoder/decoder pair, is also performed and compared to numerical calculations.","PeriodicalId":342015,"journal":{"name":"Applications of Photonic Technology","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131845213","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
Design and applications of large scale integrated planar lightwave circuit for WDM systems WDM系统中大规模集成平面光波电路的设计与应用
Applications of Photonic Technology Pub Date : 2003-02-01 DOI: 10.1117/12.474394
Wenlu Chen, Yung-Jui Chen
{"title":"Design and applications of large scale integrated planar lightwave circuit for WDM systems","authors":"Wenlu Chen, Yung-Jui Chen","doi":"10.1117/12.474394","DOIUrl":"https://doi.org/10.1117/12.474394","url":null,"abstract":"In this paper, the design and applications of Large Scale Integrated (LSI) Planar Lightwave Circuits (PLCs) for WDM systems are discussed. The general design issues of PLCs', such as size, loss and crosstalk are addressed. A 32-wavelength optical add/drop multiplexer (OADM) with 4 pairs of fully addressable add/drop ports is presented as an example application for LSI-PLCs.","PeriodicalId":342015,"journal":{"name":"Applications of Photonic Technology","volume":"124 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114555817","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
Experimental study of polarization properties of near IR sensitive photopolymer holograms 近红外感光聚合物全息图偏振特性的实验研究
Applications of Photonic Technology Pub Date : 2003-02-01 DOI: 10.1117/12.473907
Steven D. Harbour, T. Galstian
{"title":"Experimental study of polarization properties of near IR sensitive photopolymer holograms","authors":"Steven D. Harbour, T. Galstian","doi":"10.1117/12.473907","DOIUrl":"https://doi.org/10.1117/12.473907","url":null,"abstract":"In the present work, we study the polarization properties of obtained diffraction gratings. A strong anisotropy was observed while monitoring diffraction efficicency during recording of the gratings. Angular selectivity studies for different incident polarizations will provide us important information on the LC molecules and droplet orientation.","PeriodicalId":342015,"journal":{"name":"Applications of Photonic Technology","volume":"121 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134084879","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
Dye-filled polymer film formation in vacuum 在真空中形成染料填充聚合物薄膜
Applications of Photonic Technology Pub Date : 2003-02-01 DOI: 10.1117/12.474034
K. P. Gritsenko, O. Dimitriev, D. O. Grinko, S. Schrader, L. Brehmer
{"title":"Dye-filled polymer film formation in vacuum","authors":"K. P. Gritsenko, O. Dimitriev, D. O. Grinko, S. Schrader, L. Brehmer","doi":"10.1117/12.474034","DOIUrl":"https://doi.org/10.1117/12.474034","url":null,"abstract":"Dye-filled polymer nanocomposite thin films are of great interest due to their unique electronic and optical properties. They are perspective for applications in luminescent, nonlinear, solar energy conversion and other optoelectronic devices. Recently polymer films filled with dye by evaporation in vacuum became a subject of growing interest. Simultaneous evaporation from two sources allows to deposit a film with any ratio between components. Dye+polymer films are deposited using co-evaporation of the compounds in vacuum, pyrolysis+evaporation, laser evaporation of composite target. Several polymers, such as polytetrafluoroethylene (PTFE), polychlorotrifluoroethylene (PCTFE), polystyrene (PS), polyparaphenylenesulphide(PPS), polyparaxylylene (PPX) were filled with dye molecules. Several dyes of various kinds were used for co-deposition. Polymer matrix prevents aggregation even during annealing, enhances film stability and endurance. Combined co-deposition methods give powerful tool for film optical properties controlled design. They allow to control independently nanoparticles concentration and material structure both for matrix and filler, which is resulted in optical properties of the film.","PeriodicalId":342015,"journal":{"name":"Applications of Photonic Technology","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132963564","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: 2
Trends in gas phase deposition of organic films for nonlinear optics. 非线性光学有机薄膜气相沉积的发展趋势。
Applications of Photonic Technology Pub Date : 2003-02-01 DOI: 10.1117/12.474035
K. P. Gritsenko
{"title":"Trends in gas phase deposition of organic films for nonlinear optics.","authors":"K. P. Gritsenko","doi":"10.1117/12.474035","DOIUrl":"https://doi.org/10.1117/12.474035","url":null,"abstract":"General backgrounds as well as experimental results for polymer, dye and composite film deposition by thermal and laser evaporation, plasma enhanced chemical vapour deposition and combined methods are presented. Nonlinear and electroluminescent properties of the such films are discussed.","PeriodicalId":342015,"journal":{"name":"Applications of Photonic Technology","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132970972","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
Diode pumped femtosecond oscillators based on new ytterbium doped borates crystals 基于新型掺镱硼酸盐晶体的二极管泵浦飞秒振荡器
Applications of Photonic Technology Pub Date : 2003-02-01 DOI: 10.1117/12.475351
F. Druon, S. Chénais, F. Balembois, P. Georges, R. Gaume, P. Haumesser, G. Aka, B. Viana, D. Vivien
{"title":"Diode pumped femtosecond oscillators based on new ytterbium doped borates crystals","authors":"F. Druon, S. Chénais, F. Balembois, P. Georges, R. Gaume, P. Haumesser, G. Aka, B. Viana, D. Vivien","doi":"10.1117/12.475351","DOIUrl":"https://doi.org/10.1117/12.475351","url":null,"abstract":"We demonstrate for the first time the use of a new borate crystals: Yb:GdCOB and Yb:BOYS in femtosecond mode-locked oscillators. Pulses as short as 69 fs for the Yb:BOYS and 89 fs for the Yb:GdCOB have been obtained near 1 µm.","PeriodicalId":342015,"journal":{"name":"Applications of Photonic Technology","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125034416","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
Assessment of spectroscopic imaging with spectroscopic optical coherence tomography 光谱光学相干层析成像的评估
Applications of Photonic Technology Pub Date : 2003-02-01 DOI: 10.1117/12.473819
R. Fujioka, M. Suekuni, T. Montian, F. Kannari
{"title":"Assessment of spectroscopic imaging with spectroscopic optical coherence tomography","authors":"R. Fujioka, M. Suekuni, T. Montian, F. Kannari","doi":"10.1117/12.473819","DOIUrl":"https://doi.org/10.1117/12.473819","url":null,"abstract":"Spectroscopic optical coherence tomography (OCT) is accomplished by analyzing fringe-resolved coherent functions that are obtained by Fourier transform of spectral interferogram. By use of this analysis, spectral absorption and dispersion properties are obtainable. We also constructed a simple model and discussed the accuracy of this technique.","PeriodicalId":342015,"journal":{"name":"Applications of Photonic Technology","volume":"2004 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121069233","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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