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2013 High Power Diode Lasers and Systems Conference (HPD)最新文献

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Analytical and semi-analytical treatment of optical and electrical properties of large optical cavity high-power lasers: Nonlinear resistance and effect of waveguide doping 大光腔高功率激光器光学和电学特性的分析和半分析处理:非线性电阻和波导掺杂的影响
2013 High Power Diode Lasers and Systems Conference (HPD) Pub Date : 2013-10-01 DOI: 10.1109/HPD.2013.6706593
E. Avrutin, B. Ryvkin
{"title":"Analytical and semi-analytical treatment of optical and electrical properties of large optical cavity high-power lasers: Nonlinear resistance and effect of waveguide doping","authors":"E. Avrutin, B. Ryvkin","doi":"10.1109/HPD.2013.6706593","DOIUrl":"https://doi.org/10.1109/HPD.2013.6706593","url":null,"abstract":"A semi-analytical approach to analysing the electric properties of the optical confinement layer of large optical cavity lasers for arbitrary constant or graded doping is presented. Resistance nonlinearity and weak doping dependence of resistance at high currents are predicted.","PeriodicalId":410826,"journal":{"name":"2013 High Power Diode Lasers and Systems Conference (HPD)","volume":"220 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132475326","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
Simulation of high-brightness diode lasers with optical feedback from modules and systems 具有模块和系统光反馈的高亮度二极管激光器的仿真
2013 High Power Diode Lasers and Systems Conference (HPD) Pub Date : 2013-10-01 DOI: 10.1109/HPD.2013.6706595
M. A. Helal, S. Bull, S. Kaunga-Nyirenda, J. Lim, E. Larkins
{"title":"Simulation of high-brightness diode lasers with optical feedback from modules and systems","authors":"M. A. Helal, S. Bull, S. Kaunga-Nyirenda, J. Lim, E. Larkins","doi":"10.1109/HPD.2013.6706595","DOIUrl":"https://doi.org/10.1109/HPD.2013.6706595","url":null,"abstract":"The performance of high-brightness laser diode emitters and bars is often affected by external optical feedback from the modules and systems in which they are deployed. We report on the coupling of an advanced simulation tool for high-brightness laser diodes with commercial optical design software. The aim of this work is to create a software tool which can be applied to the design and optimisation of high-brightness diode laser modules and systems intended for use in industrial applications requiring the cutting and welding of sheet metal.","PeriodicalId":410826,"journal":{"name":"2013 High Power Diode Lasers and Systems Conference (HPD)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115329670","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
Degradation processes in high-power diode lasers under external optical feedback 外光反馈作用下高功率二极管激光器的退化过程
2013 High Power Diode Lasers and Systems Conference (HPD) Pub Date : 2013-10-01 DOI: 10.1109/HPD.2013.6706609
J. Tomm, M. Hempel, M. Chi, P. Petersen, U. Zeimer, M. Weyers
{"title":"Degradation processes in high-power diode lasers under external optical feedback","authors":"J. Tomm, M. Hempel, M. Chi, P. Petersen, U. Zeimer, M. Weyers","doi":"10.1109/HPD.2013.6706609","DOIUrl":"https://doi.org/10.1109/HPD.2013.6706609","url":null,"abstract":"The effect of moderate external feedback on the gradual degradation of 808 nm emitting AlGaAs-based high-power broad-area diode lasers is analyzed. Eventually the quantum well that actually experiences the highest total optical load remains unaffected by the aging, while severe impact to the waveguide by point defects is observed.","PeriodicalId":410826,"journal":{"name":"2013 High Power Diode Lasers and Systems Conference (HPD)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132257670","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
Current challenges for high-power semiconductor disk lasers 高功率半导体光盘激光器当前面临的挑战
2013 High Power Diode Lasers and Systems Conference (HPD) Pub Date : 2013-10-01 DOI: 10.1109/HPD.2013.6706590
L. McKnight, T. E. Bennett, D. J. Kane, C. Hamilton, G. Malcolm, D. Stothard, J. Hopkins, M. Dawson
{"title":"Current challenges for high-power semiconductor disk lasers","authors":"L. McKnight, T. E. Bennett, D. J. Kane, C. Hamilton, G. Malcolm, D. Stothard, J. Hopkins, M. Dawson","doi":"10.1109/HPD.2013.6706590","DOIUrl":"https://doi.org/10.1109/HPD.2013.6706590","url":null,"abstract":"Here we review of high-power semiconductor disk lasers including thermal management issues and new results.","PeriodicalId":410826,"journal":{"name":"2013 High Power Diode Lasers and Systems Conference (HPD)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133571787","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-brilliance diode lasers with monolithically-integrated surface gratings as sources for spectral beam combining 具有单片集成表面光栅作为光谱光束组合源的高亮度二极管激光器
2013 High Power Diode Lasers and Systems Conference (HPD) Pub Date : 2013-10-01 DOI: 10.1109/HPD.2013.6706589
J. Fricke, P. Crump, J. Decker, H. Wenzel, A. Maaßdorf, G. Erbert, G. Trankle
{"title":"High-brilliance diode lasers with monolithically-integrated surface gratings as sources for spectral beam combining","authors":"J. Fricke, P. Crump, J. Decker, H. Wenzel, A. Maaßdorf, G. Erbert, G. Trankle","doi":"10.1109/HPD.2013.6706589","DOIUrl":"https://doi.org/10.1109/HPD.2013.6706589","url":null,"abstract":"A high output power and a good beam quality are required for the application of diode lasers for direct material processing. One possible way to increase the output power while keeping the beam quality almost constant is spectral beam combining. The required stabilization of the emission wavelengths of the single emitters can be achieved by the monolithic integration of Bragg gratings into the chips, which is a promising way to reduce fabrication costs in comparison to the utilization of volume Bragg gratings. A DFB laser with a stripe width of 30 μm is presented, which reached a side mode suppression ratio of 50 dB and an output power of 5.5 W. Aspects of the simulation and the fabrication of the Bragg gratings will be discussed.","PeriodicalId":410826,"journal":{"name":"2013 High Power Diode Lasers and Systems Conference (HPD)","volume":"573 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134268877","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
Design considerations for high-power external cavity laser diodes 高功率外腔激光二极管的设计考虑
2013 High Power Diode Lasers and Systems Conference (HPD) Pub Date : 2013-10-01 DOI: 10.1109/HPD.2013.6706591
S. Bull, S. Kaunga-Nyirenda, E. Larkins
{"title":"Design considerations for high-power external cavity laser diodes","authors":"S. Bull, S. Kaunga-Nyirenda, E. Larkins","doi":"10.1109/HPD.2013.6706591","DOIUrl":"https://doi.org/10.1109/HPD.2013.6706591","url":null,"abstract":"Super large optical cavities can give the desired wide vertical near-field (and narrow vertical far-field), which simplify the optics and feedback in an external cavity laser. However, vertical structures support many higher order modes and may suffer from poor modal discrimination. We examine important additional considerations for the design of external cavity diode lasers. An optical trap can reduce the waveguide width and improve modal discrimination, but some higher order modes are still unavoidable. Thus, the laser materials and growth must be carefully optimised to ensure that light coupled back into the laser cannot propagate in these unwanted modes.","PeriodicalId":410826,"journal":{"name":"2013 High Power Diode Lasers and Systems Conference (HPD)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130775755","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
Diode laser platform for multi-kW applications 用于多千瓦应用的二极管激光平台
2013 High Power Diode Lasers and Systems Conference (HPD) Pub Date : 2013-10-01 DOI: 10.1109/HPD.2013.6706604
T. Brand, A. Unger, B. Koehler, P. Wolf, A. Beczkowiak, J. Biesenbach
{"title":"Diode laser platform for multi-kW applications","authors":"T. Brand, A. Unger, B. Koehler, P. Wolf, A. Beczkowiak, J. Biesenbach","doi":"10.1109/HPD.2013.6706604","DOIUrl":"https://doi.org/10.1109/HPD.2013.6706604","url":null,"abstract":"We report on developments in scalable high-power and high-brightness direct diode-laser systems for applications in fiber-laser pumping and material processing. A modular diode-laser platform suitable for a highly automated production process is implemented, improving cost-efficiency, repeatability and reliability.","PeriodicalId":410826,"journal":{"name":"2013 High Power Diode Lasers and Systems Conference (HPD)","volume":"93 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132973962","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 of a DFB / DBR diode laser module including spectral multiplexing based on VBGs 基于VBGs的光谱复用DFB / DBR二极管激光模块设计
2013 High Power Diode Lasers and Systems Conference (HPD) Pub Date : 2013-10-01 DOI: 10.1109/HPD.2013.6706596
S. Hengesbach, U. Witte, M. Traub, D. Hoffmann
{"title":"Design of a DFB / DBR diode laser module including spectral multiplexing based on VBGs","authors":"S. Hengesbach, U. Witte, M. Traub, D. Hoffmann","doi":"10.1109/HPD.2013.6706596","DOIUrl":"https://doi.org/10.1109/HPD.2013.6706596","url":null,"abstract":"We present the concept of a modular fiber coupled building block based on chirped DFB or DBR diode laser bars and a Dense Wavelength Division Multiplexer including Volume Bragg Gratings. The minimum channel spacing is 1.5 nm. Multiplexing efficiencies of 97% have been demonstrated in a pre-testing of the multiplexing unit with single mode, frequency stabilized diode laser radiation. For the presented building block with a beam parameter product of 2.2 mm mrad per emitter, the expected multiplexing efficiency is between 90% and 95% for a channel spacing of 1.5 nm, assuming a spectral width between 100 pm and 400 pm per channel.","PeriodicalId":410826,"journal":{"name":"2013 High Power Diode Lasers and Systems Conference (HPD)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114032695","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
Power scaling diode lasers to high-brightness kW systems 功率缩放二极管激光器的高亮度千瓦系统
2013 High Power Diode Lasers and Systems Conference (HPD) Pub Date : 2013-10-01 DOI: 10.1109/HPD.2013.6706605
D. Schleuning, K. Guinn, Y. Zhang, G. Ryu, B. Acklin
{"title":"Power scaling diode lasers to high-brightness kW systems","authors":"D. Schleuning, K. Guinn, Y. Zhang, G. Ryu, B. Acklin","doi":"10.1109/HPD.2013.6706605","DOIUrl":"https://doi.org/10.1109/HPD.2013.6706605","url":null,"abstract":"The scalability of semiconductor diode lasers to multi-kilowatt power levels has increasing importance in direct diode material processing applications. These applications require hard-pulse on-off cycling capability and high brightness. Using water-cooled semiconductor laser bars, the Highlight D-series achieves >8kW of power in a <; 1mm × 6mm beam line at a working distance of ~ 280mm. The good thermal performance of water-cooled packages allows for scaling to operation at higher powers and brightness.","PeriodicalId":410826,"journal":{"name":"2013 High Power Diode Lasers and Systems Conference (HPD)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123288331","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
Optical pulse generation in photonic band crystal mode locked lasers 光子带晶体锁模激光器中的光脉冲产生
2013 High Power Diode Lasers and Systems Conference (HPD) Pub Date : 2013-10-01 DOI: 10.1109/HPD.2013.6706600
R. Rosales, D. Arsenijevic, K. Posilović, V. Kalosha, M. J. Miah, D. Bimberg, J. Pohl, M. Weyers
{"title":"Optical pulse generation in photonic band crystal mode locked lasers","authors":"R. Rosales, D. Arsenijevic, K. Posilović, V. Kalosha, M. J. Miah, D. Bimberg, J. Pohl, M. Weyers","doi":"10.1109/HPD.2013.6706600","DOIUrl":"https://doi.org/10.1109/HPD.2013.6706600","url":null,"abstract":"We report for the first time on the generation of short optical pulses based on passive mode locking of photonic band crystal lasers. Preliminary results demonstrate the feasibility and attractiveness of this technique for the generation of picosecond, high-power, high-brightness pulses in the GHz range.","PeriodicalId":410826,"journal":{"name":"2013 High Power Diode Lasers and Systems Conference (HPD)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133165034","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
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