High-Power Diode Laser Technology XVII最新文献

High-Power Diode Laser Technology XVII Pub Date : 2019-05-17 DOI: 10.1117/12.2531317

引用次数: 0

High power 808nm to 1060nm CW and QCW laser diode bars (Conference Presentation) 大功率808nm至1060nm连续波和QCW激光二极管棒(会议介绍)

High-Power Diode Laser Technology XVII Pub Date : 2019-03-13 DOI: 10.1117/12.2523782

Guoli Liu, S. Lehkonen, Zuntu Xu, Jingwei Li, H. Winhold, S. Govorkov, H. Kissel, J. Biesenbach

引用次数: 0

High Power Laser Diodes: Improvements in Power, Efficiency, and Brilliance (Conference Presentation) 高功率激光二极管:功率、效率和亮度的改进(会议报告)

High-Power Diode Laser Technology XVII Pub Date : 2019-03-08 DOI: 10.1117/12.2517037

G. Tränkle

引用次数: 1

Dependence of high-power laser diode performance on emitter width (Conference Presentation) 大功率激光二极管性能与发射极宽度的关系(会议报告)

High-Power Diode Laser Technology XVII Pub Date : 2019-03-04 DOI: 10.1117/12.2507712

Jung-Tack Yang, Young Hyun Kim, Jae Bong Lee, D. Bang, Tae-Kyung Kim, W. Choi

引用次数: 2

High-power and brightness 105-micron fiber coupled blue laser diode modules (Conference Presentation) 高功率、高亮度105微米光纤耦合蓝色激光二极管模块(会议报告)

High-Power Diode Laser Technology XVII Pub Date : 2019-03-04 DOI: 10.1117/12.2510535

M. Riva, G. Rossi, F. Pescarmona, A. Braglia, G. Perrone

{"title":"High-power and brightness 105-micron fiber coupled blue laser diode modules (Conference Presentation)","authors":"M. Riva, G. Rossi, F. Pescarmona, A. Braglia, G. Perrone","doi":"10.1117/12.2510535","DOIUrl":"https://doi.org/10.1117/12.2510535","url":null,"abstract":"Efficient laser processing of high reflective materials, such as copper and gold, requires shorter wavelengths than those currently used for high power industrial applications, with blue being the optimal choice. However, the limited power of currently available blue laser chips poses important challenges in scaling the power to the required hundreds of watts while preserving the highest possible beam quality. The paper presents a new proprietary patent-pending architecture that allows achieving world record blue laser brilliance using commercially available high power lasers in TO9 package. The developed architecture is based on single emitters for best flexibility and reliability, which are organized in rows staggered along the fast axis; each row can then be placed side by side to other rows in order to spatially multiplex also along the slow axis. The optimized design gave a final architecture based on 3 rows for a total of 36 emitters that could be coupled into a 105 µm / 0.22 NA. Exploiting also polarization multiplexing and using commercially available 3.5 W diodes it is possible to obtain 220 W of coupled power into a 105 µm / 0.22 NA fiber, for a record brilliance of 150 GW/(ster m2). Following an accurate design phase some prototypes have been fabricated and characterized. Detailed results are presented at the Conference.","PeriodicalId":136614,"journal":{"name":"High-Power Diode Laser Technology XVII","volume":"83 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123178325","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

Smart adhesive gap design to minimize volumetric shrinkage misalignment effects in the automated assembly of FAC to Bottom Tab subassemblies (Conference Presentation) 智能粘接间隙设计，最大限度地减少FAC与底部标签组件自动组装时的体积收缩错位效应(会议报告)

High-Power Diode Laser Technology XVII Pub Date : 2019-03-04 DOI: 10.1117/12.2511050

S. Sauer, T. Müller, D. Zontar, M. Hoeren, M. Berger, C. Brecher

{"title":"Smart adhesive gap design to minimize volumetric shrinkage misalignment effects in the automated assembly of FAC to Bottom Tab subassemblies (Conference Presentation)","authors":"S. Sauer, T. Müller, D. Zontar, M. Hoeren, M. Berger, C. Brecher","doi":"10.1117/12.2511050","DOIUrl":"https://doi.org/10.1117/12.2511050","url":null,"abstract":"Fast axis collimator (FAC) to Chip in the assembly of High Power Diode Lasers (HPDL) systems is state of the art done in active alignment. Micro manipulators and (semi-) automated machines are available for purchase on the market. Neither the precision of the manipulation tools (step resolution < 10 nm) nor the measurement systems utilized in active alignment algorithms (alignment precision of ~50 nm) are the quality limiting factors but the bonding process is. This is due to the volumetric shrinkage of fast curing UV-adhesives in the curing process.\u0000The objective of this work is to reduce the absolute volume of adhesives in optical systems by smart design of the glue glap so no significant misalignment while curing is expected.\u0000The assertion is that the overall system quality is improved with the implementation of additional adhesive gaps if the amount of adhesive is reduced in this way. In high quality systems as HPDL this approach is state of the art with the implementation of FAC lens on Bottom tab. In other industries as automotive sensors that are drastically reducing component tolerances and improving system quality this approach is rather unknown.\u0000Results of glue gap reduction for HPDL assembly is described in this work by combining active alignment of FAC to edge emitter with a tolerance compensated individualized FAC on bottom tab subassembly in a fully automated production process. The approach was described in the papers [SPIE 10086-28] and [SPIE 10514-38].\u0000Furthermore the approach of systemizing the smart glue gap design is done.","PeriodicalId":136614,"journal":{"name":"High-Power Diode Laser Technology XVII","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125714169","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

High-brightness laser-based White light sources for automotive lighting applications (Conference Presentation) 应用于汽车照明的高亮度激光白光光源(会议报告)

High-Power Diode Laser Technology XVII Pub Date : 2019-03-04 DOI: 10.1117/12.2513381

A. Hanafi, H. Erdl, P. Rudy, J. Raring, Julian A. Carey

{"title":"High-brightness laser-based White light sources for automotive lighting applications (Conference Presentation)","authors":"A. Hanafi, H. Erdl, P. Rudy, J. Raring, Julian A. Carey","doi":"10.1117/12.2513381","DOIUrl":"https://doi.org/10.1117/12.2513381","url":null,"abstract":"Modern vehicle lighting systems are intended to improve safety on the road by providing the adequate visibility to the drivers under different driving conditions from within a compact housing. Using a high-power semipolar GaN-based blue laser diode (>3W) that pumps a yellow phosphor in a remote position, BMW and SLD co-developed a new high-luminance white point-like source having a peak brightness of over 1000 cd/mm², which is 10 times than that of high-power white LEDs. This results in extending the range of the visibility to the maximum regulatory photometric values (~600m) and in enhancing the contrast of different light distributions in the far-field. New lighting functions, devoted to guiding, assistance and communication, for example between self-driving vehicles and pedestrians, require variable, free patterned light distributions that are clearly perceivable by the driver and/or pedestrians. One way to achieve them is through the use of high-luminance, dynamic light sources with a higher luminous flux and a higher “automotive” lifetime. Such sources should enable a relatively high resolution in the far-field. Multiple efficient, high-power semi-polar blue laser emitters have therefore to be integrated in a thermo-optically stable package. Different patterns are generated on an optimized structured phosphor that is excited by a moving blue laser spot. This dynamic is enabled by a robust, compact, fast beam steering MEMS mirror. The pattern is projected in the far-field using a customized secondary optical system. Eye safety measures that ensure a safe usage in the vehicle and in the manufacturing sites, have to be implemented in such sources.","PeriodicalId":136614,"journal":{"name":"High-Power Diode Laser Technology XVII","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131593612","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