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CLEO/Europe. 2005 Conference on Lasers and Electro-Optics Europe, 2005.最新文献

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All-fiber pump coupling techniques for double-clad fiber amplifiers 双包层光纤放大器的全光纤泵浦耦合技术
CLEO/Europe. 2005 Conference on Lasers and Electro-Optics Europe, 2005. Pub Date : 2005-06-17 DOI: 10.1109/CLEOE.2005.1568492
F. Gonthier
{"title":"All-fiber pump coupling techniques for double-clad fiber amplifiers","authors":"F. Gonthier","doi":"10.1109/CLEOE.2005.1568492","DOIUrl":"https://doi.org/10.1109/CLEOE.2005.1568492","url":null,"abstract":"Summary form only given. In commercial fiber laser designs, fiber-based components will replace bulk optic components for coupling pump power into double-clad fibers. Side and end pumping techniques are described. Performance, efficiency, power handling and reliability are discussed","PeriodicalId":354643,"journal":{"name":"CLEO/Europe. 2005 Conference on Lasers and Electro-Optics Europe, 2005.","volume":"36 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132868272","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: 10
Penetration, porosity prevention mechanism and welding phenomena in laser-arc hybrid welding 激光-电弧复合焊接中熔透、防气孔机理及焊接现象
CLEO/Europe. 2005 Conference on Lasers and Electro-Optics Europe, 2005. Pub Date : 2005-06-17 DOI: 10.1109/CLEOE.2005.1568437
S. Katayama, Y. Naito, S. Uchiumi, M. Mizutani
{"title":"Penetration, porosity prevention mechanism and welding phenomena in laser-arc hybrid welding","authors":"S. Katayama, Y. Naito, S. Uchiumi, M. Mizutani","doi":"10.1109/CLEOE.2005.1568437","DOIUrl":"https://doi.org/10.1109/CLEOE.2005.1568437","url":null,"abstract":"Summary form only given. Hybrid welding of stainless steels and aluminum alloys was performed with the heat sources of YAG laser and TIG, and YAG laser and MIG respectively. The effects of welding conditions and melt flows on penetration depth, weld bead geometry and porosity formation tendency were investigated with high-speed video observation and X-ray transmission real-time observation methods. The penetration depth was affected not by the arc current but by the laser power in TIG-YAG hybrid welding of stainless steel. On the other hand, the penetration was affected by the arc current in MIG-YAG hybrid welding of aluminum alloys. In both hybrid-welding processes, the beneficial conditions for the production of the deepest penetration were established. Moreover, the target distances between the laser beam and the electrode or wire exerted a great effect on the penetration and its geometry. The great effect of downward melt flows induced by recoil pressure against the keyhole wall and by surface tension and electromagnetic force due to the arc constriction in the molten pool on the penetration depth and geometry were consequently confirmed. Concerning porosity suppression, in YAG-TIG hybrid welding of stainless steel, no porosity formation was attributed to the generation of no bubbles from the tip of a keyhole produced with a laser beam. On the other hand, at high currents in MIG-YAG hybrid welding of aluminum alloys, disappearance of bubbles from the concave molten pool surface played an important role of reduced porosity","PeriodicalId":354643,"journal":{"name":"CLEO/Europe. 2005 Conference on Lasers and Electro-Optics Europe, 2005.","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130967140","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: 5
Remote LIBS and Raman imaging for assessment of cultural heritage 用于文化遗产评估的远程LIBS和拉曼成像
CLEO/Europe. 2005 Conference on Lasers and Electro-Optics Europe, 2005. Pub Date : 2005-06-17 DOI: 10.1109/CLEOE.2005.1568460
R. Gronlund, M. Bengtsson, M. Lundqvist, G. Somesfalean, S. Svanberg
{"title":"Remote LIBS and Raman imaging for assessment of cultural heritage","authors":"R. Gronlund, M. Bengtsson, M. Lundqvist, G. Somesfalean, S. Svanberg","doi":"10.1109/CLEOE.2005.1568460","DOIUrl":"https://doi.org/10.1109/CLEOE.2005.1568460","url":null,"abstract":"In this paper, we propose to perform remote laser-induced breakdown spectroscopy (LIBS) and Raman imaging of historical monuments to assess the state of a building. The lidar system is equipped with a Nd:YAG pumped optical parametrical oscillator (OPO) system, allowing laser radiation in the wavelength range 220 nm-4 mum. The laser radiation can be sent through a roof-top dome which can steer the radiation onto the point of interest","PeriodicalId":354643,"journal":{"name":"CLEO/Europe. 2005 Conference on Lasers and Electro-Optics Europe, 2005.","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121489045","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
Recent developments and applications of laser Doppler vibrometry to cultural heritage conservation 激光多普勒振动仪在文物保护中的最新进展及应用
CLEO/Europe. 2005 Conference on Lasers and Electro-Optics Europe, 2005. Pub Date : 2005-06-17 DOI: 10.1109/CLEOE.2005.1568449
E. Esposito
{"title":"Recent developments and applications of laser Doppler vibrometry to cultural heritage conservation","authors":"E. Esposito","doi":"10.1109/CLEOE.2005.1568449","DOIUrl":"https://doi.org/10.1109/CLEOE.2005.1568449","url":null,"abstract":"The scanning laser Doppler vibrometer (SLDV), is an optical instrument that may accurately measure point-by-point surface velocities using interferometric techniques and a couple of galvanometric driven mirrors steering the laser beam. The application of SLDV to the problem of the diagnostics of monuments and many other types of artworks, is based on the well established principle that it is possible to evaluate the structural state of an object from the examination of its vibrations","PeriodicalId":354643,"journal":{"name":"CLEO/Europe. 2005 Conference on Lasers and Electro-Optics Europe, 2005.","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122439532","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
SNOM probes: fabrication and application for local modification of surface SNOM探针:表面局部修饰的制造与应用
CLEO/Europe. 2005 Conference on Lasers and Electro-Optics Europe, 2005. Pub Date : 2005-06-17 DOI: 10.1109/CLEOE.2005.1568380
V. F. Dryakhlushin, V. Veiko
{"title":"SNOM probes: fabrication and application for local modification of surface","authors":"V. F. Dryakhlushin, V. Veiko","doi":"10.1109/CLEOE.2005.1568380","DOIUrl":"https://doi.org/10.1109/CLEOE.2005.1568380","url":null,"abstract":"The probe is a key element of a SNOM. The probe size determines the microscope resolution, the optical power emerging from the probe determines applications of SNOM for local surface modification and high-resolution diagnostics. Two methods of fabrication of SNOM probes are developed in this report - the method of chemical etching of optical fiber and method of controlled mechanical pulling with laser heating of optical fiber (\"laser pooling\")","PeriodicalId":354643,"journal":{"name":"CLEO/Europe. 2005 Conference on Lasers and Electro-Optics Europe, 2005.","volume":"254 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122462762","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
Modelling of direct FEL synthesis of textured TiN coatings on titanium 钛上织构TiN涂层的直接FEL合成建模
CLEO/Europe. 2005 Conference on Lasers and Electro-Optics Europe, 2005. Pub Date : 2005-06-17 DOI: 10.1109/CLEOE.2005.1568429
P. Schaaf, M. Shinn.
{"title":"Modelling of direct FEL synthesis of textured TiN coatings on titanium","authors":"P. Schaaf, M. Shinn.","doi":"10.1109/CLEOE.2005.1568429","DOIUrl":"https://doi.org/10.1109/CLEOE.2005.1568429","url":null,"abstract":"Surface treatment by means of pulsed laser beams in reactive atmospheres is an attractive technique to enhance the surface features, such as corrosion and wear resistance or hardness. Among all laser types, the free electron laser (FEL) is relatively new for materials processing, its main peculiarities being the high power, pulse structure, high repetition rates and macropulse forming. So the FEL has the ability to significantly improve processing speed and versatility of laser material treatments. We have employed the 1.7 kW FEL at the Jefferson Lab (Virginia, USA) to irradiate pure titanium substrates in nitrogen atmosphere. We have investigated the influence of various experimental parameters (macropulse duration, macropulse repetition rate, spot overlap and laser fluence) on the nitrogen incorporation and the resulting microstructures","PeriodicalId":354643,"journal":{"name":"CLEO/Europe. 2005 Conference on Lasers and Electro-Optics Europe, 2005.","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122922578","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
Q-switched short cavity fiber lasers: theory and experiment 调q短腔光纤激光器:理论与实验
CLEO/Europe. 2005 Conference on Lasers and Electro-Optics Europe, 2005. Pub Date : 2005-06-17 DOI: 10.1109/CLEOE.2005.1568330
R. Duchowicz, P. Pérez-Millán, J. Cruz, M. Andrés
{"title":"Q-switched short cavity fiber lasers: theory and experiment","authors":"R. Duchowicz, P. Pérez-Millán, J. Cruz, M. Andrés","doi":"10.1109/CLEOE.2005.1568330","DOIUrl":"https://doi.org/10.1109/CLEOE.2005.1568330","url":null,"abstract":"In this paper, we analyse the performance of a Q-switched DFB fiber laser comparing theoretical and experimental results","PeriodicalId":354643,"journal":{"name":"CLEO/Europe. 2005 Conference on Lasers and Electro-Optics Europe, 2005.","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133247962","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
Tunable all-optically mode-locked semiconductor fiber ring laser 可调谐全光锁模半导体光纤环形激光器
CLEO/Europe. 2005 Conference on Lasers and Electro-Optics Europe, 2005. Pub Date : 2005-06-17 DOI: 10.1109/CLEOE.2005.1568304
D. Giannone, D. Kinet, G. Peigne, D. Hamoir, H. Cao, L.R. Chen
{"title":"Tunable all-optically mode-locked semiconductor fiber ring laser","authors":"D. Giannone, D. Kinet, G. Peigne, D. Hamoir, H. Cao, L.R. Chen","doi":"10.1109/CLEOE.2005.1568304","DOIUrl":"https://doi.org/10.1109/CLEOE.2005.1568304","url":null,"abstract":"We demonstrate an all-optically mode-locked semiconductor fiber ring laser with sampled fiber Bragg gratings in which the losing wavelength can be tuned electrically by changing the modulation frequency","PeriodicalId":354643,"journal":{"name":"CLEO/Europe. 2005 Conference on Lasers and Electro-Optics Europe, 2005.","volume":"60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131842613","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 comprehensive study of the coloration effect associated with laser cleaning of pollution encrustations from stonework 激光清洗石雕污染结壳的着色效果的综合研究
CLEO/Europe. 2005 Conference on Lasers and Electro-Optics Europe, 2005. Pub Date : 2005-06-17 DOI: 10.1007/978-3-540-72310-7_13
P. Pouli, C. Totou, V. Zafiropulos, C. Fotakis, E. Rebollar, M. Oujja, M. Castillejo, C. Domingo
{"title":"A comprehensive study of the coloration effect associated with laser cleaning of pollution encrustations from stonework","authors":"P. Pouli, C. Totou, V. Zafiropulos, C. Fotakis, E. Rebollar, M. Oujja, M. Castillejo, C. Domingo","doi":"10.1007/978-3-540-72310-7_13","DOIUrl":"https://doi.org/10.1007/978-3-540-72310-7_13","url":null,"abstract":"","PeriodicalId":354643,"journal":{"name":"CLEO/Europe. 2005 Conference on Lasers and Electro-Optics Europe, 2005.","volume":"96 7","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114060426","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
Compact fiber laser for 589 nm laser guide star generation 用于589nm激光导星生成的紧凑型光纤激光器
CLEO/Europe. 2005 Conference on Lasers and Electro-Optics Europe, 2005. Pub Date : 2005-06-17 DOI: 10.1109/CLEOE.2005.1568310
D. M. Pennington, J. Dawson, A. Drobshoff, S. Payne, D. Bonaccini, W. Hackenberg, L. Taylor
{"title":"Compact fiber laser for 589 nm laser guide star generation","authors":"D. M. Pennington, J. Dawson, A. Drobshoff, S. Payne, D. Bonaccini, W. Hackenberg, L. Taylor","doi":"10.1109/CLEOE.2005.1568310","DOIUrl":"https://doi.org/10.1109/CLEOE.2005.1568310","url":null,"abstract":"In this paper, we developed an all-fiber laser system for generating a 589 nm source for laser-guided adaptive optics. The design is based on sum-frequency mixing two fiber lasers in a nonlinear material to produce a CW output at the desired wavelength. Combining an Er/Yb:doped fiber laser operating at 1583 nm with a 938 nm Nd:silica fiber laser, one can generate 589 nm via sum-frequency mixing in a periodically poled crystal. The integrated system design and performance is presented","PeriodicalId":354643,"journal":{"name":"CLEO/Europe. 2005 Conference on Lasers and Electro-Optics Europe, 2005.","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114815606","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
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