Root cause investigation of back-irradiance-induced failure of high power diode lasers

机译：高功率二极管激光器背辐射诱导失效的根本原因

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Back-irradiance testing of high power diode lasers with absorbing substrates reveals catastrophic failure occurs when the return spot is shifted slightly with respect to the quantum well (into the substrate). Thermoreflectance temperature mapping shows this position to be the point of maximum facet temperature rise at the active region. Finite element thermal modelling, which is in close agreement with thermoreflectance results, indicates a root cause of thermal cross-heating between the absorbed back-irradiance light in the substrate and heating in the active region.

机译：当返回点相对于量子阱（进入基板）时，当返回点略微移动时，发生高功率二极管激光器的背部辐照度测试揭示了灾难性的故障。热度反应温度映射显示该位置是在有源区的最大面温度上升的点。有限元热建模与热反射结果密切一致，表明基板中吸收的背辐射光和在有源区中加热之间的热交叉加热的根本原因。

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《IEEE High Power Diode Lasers and Systems Conference》|2017年|62p|共2页
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Paul O. Leisher; David Pope; Larry Platz; Matthew Boisselle; Mike Runkel; Robert J. Deri; Steve Smith; Jason D. Helmrich; Devin E. Crawford; Prabhu Thiagarajan; Chen Li; Kevin P. Pipe;
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中图分类 TN248.4-53;
关键词
Diode lasers; Semiconductor lasers; Substrates; Mirrors; Heating systems; Temperature measurement; Reliability;

机译：二极管激光器;半导体激光器;基板;镜子;加热系统;温度测量;可靠性;

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专利

1. HIGH-POWER DIODE LASERS: Direct-diode lasers combine to form powerful, high-brightness beam [J] . John Wallace Laser Focus World: The Magazine for the Photonics & Optoelectronics Industry . 2009,第6期

机译：高功率二极管激光器：直接二极管激光器结合形成强大的高亮度光束
2. HIGH-POWER DIODE LASERS: Low-numerical-aperture direct diode laser maintains high power [J] . DAVID HAVRILLA, MARCO HOLZER, STEPHAN STROHMAIER Laser Focus World: The Magazine for the Photonics & Optoelectronics Industry . 2011,第3期

机译：高功率二极管激光器：低数值孔径的直接二极管激光器保持高功率
3. Investigations on laser welding of dissimilar joints of steel and aluminum using a high-power diode laser [J] . Lahdo Rabi, Springer Andre, Meier Oliver, Journal of Laser Applications . 2018,第3期

机译：高功率二极管激光器对钢和铝异种接头激光焊接的研究
4. Root cause investigation of back-irradiance-induced failure of high power diode lasers [C] . Paul O. Leisher, David Pope, Larry Platz, 2017 IEEE High Power Diode Lasers and Systems Conference . 2017

机译：高功率二极管激光器后向辐射诱发故障的根本原因研究
5. Untersuchungen an weich schaltenden DC/DC Konvertern zur Versorgung von Hochleistungs-Diodenlasern =Investigations on Soft Switching DC/DC Converters Supplying High Power Diode Lasers [D] . Winkler, Tammo. 2019

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6. A Preliminary In Vitro Study on the Efficacy of High-Power Photodynamic Therapy (HLLT): Comparison between Pulsed Diode Lasers and Superpulsed Diode Lasers and Impact of Hydrogen Peroxide with Controlled Stabilization [O] . Gianluigi Caccianiga, Marco Baldoni, Carlo Angelo Ghisalberti, 2006

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7. Analysis of bulk and facet failures in AlGaAs-based high-power diode lasers [O] . Jens W. Tomm, Martin Hempel, Fabio La Mattina, 2013

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Root cause investigation of back-irradiance-induced failure of high power diode lasers

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