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2014 International Conference Laser Optics最新文献

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Adiabatic frequency conversion 绝热变频
2014 International Conference Laser Optics Pub Date : 2014-08-28 DOI: 10.1109/LO.2014.6886218
A. Arie
{"title":"Adiabatic frequency conversion","authors":"A. Arie","doi":"10.1109/LO.2014.6886218","DOIUrl":"https://doi.org/10.1109/LO.2014.6886218","url":null,"abstract":"Adiabatic frequency conversion is a nonlinear process in which the coupling between the interacting waves changes slowly with respect to the internal system dynamics. It enables efficient (near 100%) scalable broadband frequency conversion using a single adiabatic process, as well as complete frequency conversion through an opaque intermediate level by multiple adiabatic processes.","PeriodicalId":191027,"journal":{"name":"2014 International Conference Laser Optics","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121386826","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
High average power mid-infrared supercontinuum generation in a fluorozirconate fiber 氟锆酸盐光纤中高平均功率中红外超连续光谱的产生
2014 International Conference Laser Optics Pub Date : 2014-08-28 DOI: 10.1109/LO.2014.6886424
J. Świderski, M. Michalska, L. Galecki
{"title":"High average power mid-infrared supercontinuum generation in a fluorozirconate fiber","authors":"J. Świderski, M. Michalska, L. Galecki","doi":"10.1109/LO.2014.6886424","DOIUrl":"https://doi.org/10.1109/LO.2014.6886424","url":null,"abstract":"Summary form only given: We report on mid-infrared supercontinuum generation in a step-index fluorozirconate fiber. The output power of over 5 W in a 3-octave spanning spectrum is presented.","PeriodicalId":191027,"journal":{"name":"2014 International Conference Laser Optics","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116500045","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
Active coherent combining method based on multi-aperture wave front sensors 基于多孔径波前传感器的主动相干组合方法
2014 International Conference Laser Optics Pub Date : 2014-08-28 DOI: 10.1109/LO.2014.6886308
S. D. Pol’skikh, P. Semenov
{"title":"Active coherent combining method based on multi-aperture wave front sensors","authors":"S. D. Pol’skikh, P. Semenov","doi":"10.1109/LO.2014.6886308","DOIUrl":"https://doi.org/10.1109/LO.2014.6886308","url":null,"abstract":"Phase synchronization methods of several lasers are widely applied in the systems with high average power and narrowness. Among different approaches of coherent combining the most significant ones are methods based on active parameters control of each laser in the system. The control is usually conducted with distributed adaptive optical systems. In most practical cases it is an adaptive system of aperture sensing which is based on optimization (maximization) of image sharpness function. The alternative system is the one with reference beam and wave front sensor (WFS) based on holographic and heterodyne principles. However, such systems are more difficult to construct. It is also impossible to use traditional adaptive optics wave front sensors in this multi-aperture system, because its work is based on the principle of building a continuous chart of phase aberrations.","PeriodicalId":191027,"journal":{"name":"2014 International Conference Laser Optics","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126366326","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
Laser properties of in-band pumped Er3+:YVO4 and Er3+:KY(WO4)2 crystals 带内泵浦Er3+:YVO4和Er3+:KY(WO4)2晶体的激光特性
2014 International Conference Laser Optics Pub Date : 2014-08-28 DOI: 10.1109/LO.2014.6886219
K. Gorbachenya, V. Kisel, A. Yasukevich, N. Kuleshov, A. Pavlyuk, V. Matrosov
{"title":"Laser properties of in-band pumped Er3+:YVO4 and Er3+:KY(WO4)2 crystals","authors":"K. Gorbachenya, V. Kisel, A. Yasukevich, N. Kuleshov, A. Pavlyuk, V. Matrosov","doi":"10.1109/LO.2014.6886219","DOIUrl":"https://doi.org/10.1109/LO.2014.6886219","url":null,"abstract":"Efficient continuous-wave laser operation of in-band pumped Er<sup>3+</sup>:YVO<sub>4</sub> and Er<sup>3+</sup>:KY(WO<sub>4</sub>)<sub>2</sub> crystals was demonstrated. Maximum slope efficiency of 61 % and output power of 50 mW at 1603 nm was obtained for Er<sup>3+</sup>:YVO<sub>4</sub> crystal, for Er<sup>3+</sup>:KY(WO<sub>4</sub>)<sub>2</sub> crystal maximum slope efficiency of 27 % with output power of 35 mW at 1609 nm was realized.","PeriodicalId":191027,"journal":{"name":"2014 International Conference Laser Optics","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128047606","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 advances in microstructured optical fibers 微结构光纤的最新进展
2014 International Conference Laser Optics Pub Date : 2014-08-28 DOI: 10.1109/LO.2014.6886483
S. Semjonov
{"title":"Recent advances in microstructured optical fibers","authors":"S. Semjonov","doi":"10.1109/LO.2014.6886483","DOIUrl":"https://doi.org/10.1109/LO.2014.6886483","url":null,"abstract":"Recent results obtained in Fiber Optics Research Center RAS in the field of microstructured optical fibers are reviewed.","PeriodicalId":191027,"journal":{"name":"2014 International Conference Laser Optics","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125998404","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
Diagnostics of radiation induced tissue damage and remodeling by laser scanning microscopy with second harmonic generation 二次谐波激光扫描显微镜诊断辐射诱导的组织损伤和重塑
2014 International Conference Laser Optics Pub Date : 2014-08-28 DOI: 10.1109/LO.2014.6886455
A. Maslennikova, M. Kochueva, S. Kuznetsov, E. Kiseleva, V. Kamensky, N. Ignatjeva, O. Zakharkina, K. Babak, V. Dudenkova
{"title":"Diagnostics of radiation induced tissue damage and remodeling by laser scanning microscopy with second harmonic generation","authors":"A. Maslennikova, M. Kochueva, S. Kuznetsov, E. Kiseleva, V. Kamensky, N. Ignatjeva, O. Zakharkina, K. Babak, V. Dudenkova","doi":"10.1109/LO.2014.6886455","DOIUrl":"https://doi.org/10.1109/LO.2014.6886455","url":null,"abstract":"Normal bladder mucosa has a high-contrast stratified structure with well-delineated epithelium, basal membrane and lamina propria. The urothelial cells form a smooth dense layer without connective tissue elements. Submucosal and muscle layers have a well expressed vessel's network. Muscle fibers form bundles of an equal size in different directions. A small amount of connective tissue fibers form a scaffold of the tissue.","PeriodicalId":191027,"journal":{"name":"2014 International Conference Laser Optics","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122285031","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
1,64 mkm Er:YAG laser resonantly pumped by a solid state Er:glass laser 1,64 mkm的Er:YAG激光器，由固态Er:玻璃激光器谐振泵浦
2014 International Conference Laser Optics Pub Date : 2014-08-28 DOI: 10.1109/LO.2014.6886241
V. Buchenkov, D. Zhuk, S. I. Klimentev, V. M. Polyakov, A. Rodionov
{"title":"1,64 mkm Er:YAG laser resonantly pumped by a solid state Er:glass laser","authors":"V. Buchenkov, D. Zhuk, S. I. Klimentev, V. M. Polyakov, A. Rodionov","doi":"10.1109/LO.2014.6886241","DOIUrl":"https://doi.org/10.1109/LO.2014.6886241","url":null,"abstract":"We report on theoretical and experimental studies of Er :YAG pulsed laser working in a quasi-three-level scheme. A numerical simulation of an optical multiple laser scheme is carried out. Electro-optically Q-switched operation of an Er:YAG laser at 1645 nm end-pumped by a laser Er-Yb phosphate glass is demonstrated. Pulse energies up to 3 mJ have been generated at a pulse repetition frequency of 10 Hz.","PeriodicalId":191027,"journal":{"name":"2014 International Conference Laser Optics","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131397213","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
Precision cavity control for the stable operation of a large ring laser gyroscope 大环形激光陀螺仪稳定运行的精密腔体控制
2014 International Conference Laser Optics Pub Date : 2014-08-28 DOI: 10.1109/LO.2014.6886320
K. Schreiber, A. Gebauer, A. Velikoseltsev, J. Wells
{"title":"Precision cavity control for the stable operation of a large ring laser gyroscope","authors":"K. Schreiber, A. Gebauer, A. Velikoseltsev, J. Wells","doi":"10.1109/LO.2014.6886320","DOIUrl":"https://doi.org/10.1109/LO.2014.6886320","url":null,"abstract":"Currently the sensor performance of large ring laser gyroscopes is limited more by stability in the long term rather than measurement resolution. This is mostly because of a variable contribution of backscatter coupling between the two counter-propagating laser beams inside the square ring laser cavity. Introducing an atmospheric pressure stabilizing vessel around the ring laser structure allows us to compensate variations in the compression of the ring laser body by ambient pressure changes. Adding an interferometric feedback system takes this approach one step further in that it allows us to stabilize the length of the cavity to be stable to within 1 kHz of optical frequency. However it transpires that this precision cavity control is not sufficient to keep the backscatter coupling sufficiently constant to reduce the variation of the offset bias of the gyroscope to values of 10 μHz or below. A tightly controlled perimeter does not preclude small variations of the 4 individual sides of the gyroscope. In the absence of sufficient control over the backscatter process or sufficiently precise numerical estimate of the backscatter variation, a tight control of the length of the four individual arms of the gyroscope, in addition to the precision perimeter control appears to be a viable experimental approach. Monitoring the phase relationship between the ring laser beat note, taken at different corners of the gyroscope, provides the necessary access to the desired cavity control. This paper reports the first results of this investigation.","PeriodicalId":191027,"journal":{"name":"2014 International Conference Laser Optics","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131453727","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
Cleaning and surface treatment with pulsed high power fiber lasers 用脉冲高功率光纤激光器进行清洗和表面处理
2014 International Conference Laser Optics Pub Date : 2014-08-28 DOI: 10.1109/LO.2014.6886487
M. Grupp
{"title":"Cleaning and surface treatment with pulsed high power fiber lasers","authors":"M. Grupp","doi":"10.1109/LO.2014.6886487","DOIUrl":"https://doi.org/10.1109/LO.2014.6886487","url":null,"abstract":"Surface treatment with high power pulsed fiber lasers gets more and more interesting to wide range of applications due to higher available average power and pulse energy. The average power is either increased by higher repetition rates or higher pulse energy. New laser concepts allow the parallel combining of several fiber laser modules up to an average power of several kilowatts. These lasers increase the efficiency of the processes by high removal rates. This paper gives an overview on the various applications of surface treatment such as cleaning of molds, depainting and surface preparation for welding and gluing.","PeriodicalId":191027,"journal":{"name":"2014 International Conference Laser Optics","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131554987","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
Spatially resolved speckle correlometry in application to media structure characterization 空间分辨散斑相关测量法在介质结构表征中的应用
2014 International Conference Laser Optics Pub Date : 2014-08-28 DOI: 10.1109/LO.2014.6886501
A. Isaeva, E. Isaeva
{"title":"Spatially resolved speckle correlometry in application to media structure characterization","authors":"A. Isaeva, E. Isaeva","doi":"10.1109/LO.2014.6886501","DOIUrl":"https://doi.org/10.1109/LO.2014.6886501","url":null,"abstract":"We propose an original speckle-correlometry method for the structural analysis through a random multiple scattering media with complex dynamics and structure. The use of a localized radiation source and spatial ring filtration of scattered field give the opportunity to select the partial components of scattered field. In this work, the dynamic process of gel formation beginning from the stage of sol to the stage of gelling are investigated and the experimental data are presented. The object under study consist of 0.28 %weight fraction of gelatin dissolved in water and 1 gram per liter (gL-1) and 100 mg per liter (gL-1) of TiO2 for optical scattering.","PeriodicalId":191027,"journal":{"name":"2014 International Conference Laser Optics","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127853291","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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