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2014 International Conference Laser Optics最新文献

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Study of the temperature distribution in diode-end-pumped solid state-lasers 二极管端泵浦固体激光器温度分布的研究
2014 International Conference Laser Optics Pub Date : 2014-08-28 DOI: 10.1109/LO.2014.6886280
Tabet Saida, Lakhdari Fouad, Osmani Ismahen, Khammar Messaouda
{"title":"Study of the temperature distribution in diode-end-pumped solid state-lasers","authors":"Tabet Saida, Lakhdari Fouad, Osmani Ismahen, Khammar Messaouda","doi":"10.1109/LO.2014.6886280","DOIUrl":"https://doi.org/10.1109/LO.2014.6886280","url":null,"abstract":"The main problem of bulk crystals for the realization of powerful lasers is their poor management of thermal effects. Optical pumping is associated with the heat generation in solid state laser materials. Moving of heat toward the surrounding medium which is mostly designed for the cooling management causes thermal gradient inside the medium. This is the main reason of appearance of unwanted thermal effects on laser operation. Thermal lensing, thermal stress fracture limit, are some examples of thermal effects. In this work an investigation of heat generation inside the rod crystal during optical pumping was carried out. The Finite Difference Method (FDM) was used to resolve the heat differential equation in order to calculate the temperature generated in Yb:YAG with diode-end-pumped configuration. The effect of the conductance was studied by using two methods of the cooling system. In the first method the crystal is directly in contact with water. In the second method the crystal is surrounding by a copper to keep the cylindrical surface at the define temperature. The temperature generated reduced to half by using the second method and we can conclude that it is the best choice for high power end pumping system.","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":"123775508","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 power cryogenic Yb:YAG disk laser with nanosecond output pulse duration 输出脉冲持续时间为纳秒的高功率低温Yb:YAG圆盘激光器
2014 International Conference Laser Optics Pub Date : 2014-08-28 DOI: 10.1109/LO.2014.6886269
E. Perevezentsev, I. Mukhin, O. Palashov, I. Kuznetsov, O. Vadimova
{"title":"High power cryogenic Yb:YAG disk laser with nanosecond output pulse duration","authors":"E. Perevezentsev, I. Mukhin, O. Palashov, I. Kuznetsov, O. Vadimova","doi":"10.1109/LO.2014.6886269","DOIUrl":"https://doi.org/10.1109/LO.2014.6886269","url":null,"abstract":"OPCPA amplification of pulses that are several femtosecond order of magnitude requires pumping with picosecond pulses. For a simulation of such pump a laser system for a stretched picosecond pulse amplification has been created in the Institute of Applied Physics RAS: seed laser has been upgraded, a new high average power active cooling cryogenic disk laser head has been developed. New Main amplifier scheme based on this laser heads has been created.","PeriodicalId":191027,"journal":{"name":"2014 International Conference Laser Optics","volume":"83 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":"122635266","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
Vortex mode soliton propagation in graded-index optical fiber with longitudinal inhomogeneity vortex vs azimuthal modes comparative analysis 涡旋模孤子在纵向不均匀梯度折射率光纤中的传播与方向模的比较分析
2014 International Conference Laser Optics Pub Date : 2014-08-28 DOI: 10.1109/LO.2014.6886428
M. Bisyarin, I. Oreshnikov
{"title":"Vortex mode soliton propagation in graded-index optical fiber with longitudinal inhomogeneity vortex vs azimuthal modes comparative analysis","authors":"M. Bisyarin, I. Oreshnikov","doi":"10.1109/LO.2014.6886428","DOIUrl":"https://doi.org/10.1109/LO.2014.6886428","url":null,"abstract":"Propagation of a vortex mode of a short pulse in the graded-index optical fiber is studied with an analytical technique taking into account either nonlinearity of the propagation process and longitudinal inhomogeneity of the fiber. Quantitative estimates are obtained for differences in the soliton envelope dynamics of vortex and azimuthal modes.","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":"127721550","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
Optimization of structuring silicon-based thin film solar modules using means of laser scribing 利用激光划刻技术优化硅基薄膜太阳能组件的结构
2014 International Conference Laser Optics Pub Date : 2014-08-28 DOI: 10.1109/LO.2014.6886327
D. Redka, V. Parfenov, V. Afanasjev, A. Kukin, F. S. Egorov, A. Grishkanich
{"title":"Optimization of structuring silicon-based thin film solar modules using means of laser scribing","authors":"D. Redka, V. Parfenov, V. Afanasjev, A. Kukin, F. S. Egorov, A. Grishkanich","doi":"10.1109/LO.2014.6886327","DOIUrl":"https://doi.org/10.1109/LO.2014.6886327","url":null,"abstract":"At the moment search, production and use of renewable energy sources is a very actual task. One of approaches, which allow to resolve this problem is development of high-effective thin-film solar cells based on silicon. Recently laser technologies have been widely used to increase energy conversion efficiency. However some disadvantages of use of laser processing are that the areas of the solar cell, treated by laser, become unable to participate in the transformation of energy. Therefore, it is, necessary to minimize the area of the solar cell treated by laser.","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":"127806461","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: 7
Propagation and focusing of modes of the dielectric resonator of terahertz laser 太赫兹激光介质谐振腔模式的传输和聚焦
2014 International Conference Laser Optics Pub Date : 2014-08-28 DOI: 10.1109/LO.2014.6886325
O. Gurin, A. Degtyarev, V. Maslov, V. Senyuta, V. Svich, A. N. Topkov
{"title":"Propagation and focusing of modes of the dielectric resonator of terahertz laser","authors":"O. Gurin, A. Degtyarev, V. Maslov, V. Senyuta, V. Svich, A. N. Topkov","doi":"10.1109/LO.2014.6886325","DOIUrl":"https://doi.org/10.1109/LO.2014.6886325","url":null,"abstract":"Theoretically on the basis of the vectorial Rayleigh-Sommerfeld theory and experimentally using terahertz radiation of the waveguide laser (λ = 0.4326 mm) the physical features of propagation and “moderate” or “sharp” focusing of laser beams of radiation are investigated in free space which described by modes of circular hollow dielectric waveguide with different spatial polarization.","PeriodicalId":191027,"journal":{"name":"2014 International Conference Laser Optics","volume":"3 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":"133769160","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
Effect of SBS on the dynamics of ring fiber laser SBS对环形光纤激光器动力学特性的影响
2014 International Conference Laser Optics Pub Date : 2014-08-28 DOI: 10.1109/LO.2014.6886402
L. Melnikov, S. Sukhanov
{"title":"Effect of SBS on the dynamics of ring fiber laser","authors":"L. Melnikov, S. Sukhanov","doi":"10.1109/LO.2014.6886402","DOIUrl":"https://doi.org/10.1109/LO.2014.6886402","url":null,"abstract":"Oscillations of the intensities of oppositely running weak-coupled waves in ring fiber laser due to generation SBS components is investigated using full space time numerical model.","PeriodicalId":191027,"journal":{"name":"2014 International Conference Laser Optics","volume":"98 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":"133932926","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
Storage of optical information in nano-size cavity arrays under the qubit-light interaction 量子-光相互作用下纳米空腔阵列光信息的存储
2014 International Conference Laser Optics Pub Date : 2014-08-28 DOI: 10.1109/LO.2014.6886502
E. Sedov, A. Alodjants, S. Arakelian
{"title":"Storage of optical information in nano-size cavity arrays under the qubit-light interaction","authors":"E. Sedov, A. Alodjants, S. Arakelian","doi":"10.1109/LO.2014.6886502","DOIUrl":"https://doi.org/10.1109/LO.2014.6886502","url":null,"abstract":"We propose the model of one-dimensional polaritonic lattice representing the chain of weakly coupled optical nano-cavities, each containing clusters of qubits. We revealed a variety of both localized and spreading dynamical regimes. We suggest a new physical algorithm for the spatially distributed storage of optical information where various localized dynamical states are used.","PeriodicalId":191027,"journal":{"name":"2014 International Conference Laser Optics","volume":"62 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":"132233352","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
Numerical simulation of contrast inversion process when focusing laser beam in the absorbing medium 激光在吸收介质中聚焦时对比度反演过程的数值模拟
2014 International Conference Laser Optics Pub Date : 2014-08-28 DOI: 10.1109/LO.2014.6886497
E. Bubis, V. O. Martynov
{"title":"Numerical simulation of contrast inversion process when focusing laser beam in the absorbing medium","authors":"E. Bubis, V. O. Martynov","doi":"10.1109/LO.2014.6886497","DOIUrl":"https://doi.org/10.1109/LO.2014.6886497","url":null,"abstract":"A numerical simulation of the inverse image formation of opaque objects by focusing the transmitted radiation into the absorbing medium is performed. It is shown that the process strongly depends on the ratio of the size of the object and the illuminating beam. Inverse image conversion exceeds 350% for small-scale objects, relative to the initial intensity of the beam.","PeriodicalId":191027,"journal":{"name":"2014 International Conference Laser Optics","volume":"25 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":"114634267","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
All-fiber, high-power, picosecond Yb double clad tapered fiber amplifier 全光纤，高功率，皮秒双包层锥形光纤放大器
2014 International Conference Laser Optics Pub Date : 2014-08-28 DOI: 10.1109/LO.2014.6886471
R. Gumenyuk, V. Filippov, A. Vorotinskii, O. Okhotnikov, Y. Chamorovskii, K. Golant
{"title":"All-fiber, high-power, picosecond Yb double clad tapered fiber amplifier","authors":"R. Gumenyuk, V. Filippov, A. Vorotinskii, O. Okhotnikov, Y. Chamorovskii, K. Golant","doi":"10.1109/LO.2014.6886471","DOIUrl":"https://doi.org/10.1109/LO.2014.6886471","url":null,"abstract":"We demonstrate picosecond all-fiber system utilizing Yb-doped tapered power amplifier. The system is capable of producing 6 ps pulses with average power of 60 W and peak power of 0.4 MW.","PeriodicalId":191027,"journal":{"name":"2014 International Conference Laser Optics","volume":"21 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":"114696116","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
Gain optimization of a fiber-optic link with an external electrooptical modulator and erbium doped fiber amplifier 外置电光调制器和掺铒光纤放大器的光纤链路增益优化
2014 International Conference Laser Optics Pub Date : 2014-08-28 DOI: 10.1109/LO.2014.6886444
A. Petrov, I. Ilichev, P. Arguzov, V. Lebedev, A. Shamray, E. Velichko
{"title":"Gain optimization of a fiber-optic link with an external electrooptical modulator and erbium doped fiber amplifier","authors":"A. Petrov, I. Ilichev, P. Arguzov, V. Lebedev, A. Shamray, E. Velichko","doi":"10.1109/LO.2014.6886444","DOIUrl":"https://doi.org/10.1109/LO.2014.6886444","url":null,"abstract":"Gain optimization of a radio-frequency fiber-optic link by biasing an external modulator to the transmission minimum was studied. The increase in the gain by up to 5 dB as compared with the conventional quadrature point operation was demonstrated. Dependences of nonlinear distortions on the bias voltage of the electrooptical modulator were investigated.","PeriodicalId":191027,"journal":{"name":"2014 International Conference Laser Optics","volume":"97 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":"114581358","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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