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Visible high power fiber coupled diode lasers

机译：可见大功率光纤耦合二极管激光器

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In this paper we report on further development of fiber coupled high-power diode lasers in the visible spectral range. New visible laser modules presented in this paper include the use of multi single emitter arrays @ 450 nm leading to a 120 W fiber coupled unit with a beam quality of 44 mm × mrad, as well as very compact modules with multi-W output power from 405 nm to 640 nm. However, as these lasers are based on single emitters, power scaling quickly leads to bulky laser units with a lot of optical components to be aligned. We also report on a new approach based on 450 nm diode laser bars, which dramatically reduces size and alignment effort. These activities were performed within the German government-funded project "BlauLas": a maximum output power of 80 W per bar has been demonstrated @ 450 nm. We show results of a 200 urn NA0.22 fiber coupled 35 W source @ 450 nm, which has been reduced in size by a factor of 25 compared to standard single emitter approach. In addition, we will present a 200 μm NA0.22 fiber coupled laser unit with an output power of 135 W.
机译：在本文中，我们报告了在可见光谱范围内光纤耦合大功率二极管激光器的进一步发展。本文介绍的新型可见激光模块包括：使用450 nm处的多个单发射器阵列，以产生光束质量为44 mm×mrad的120 W光纤耦合单元，以及非常紧凑的模块，其输出功率为多W。 405 nm至640 nm但是，由于这些激光器是基于单个发射器的，因此功率缩放迅速导致带有大量光学组件的大型激光器单元要对准。我们还报告了一种基于450 nm二极管激光棒的新方法，该方法可大大减少尺寸和对准工作。这些活动是在德国政府资助的项目“ BlauLas”中进行的：在450 nm的情况下，每条最大输出功率为80W。我们显示了200微米NA0.22光纤耦合的35 W源@ 450 nm的结果，与标准单发射器方法相比，它的尺寸减小了25倍。此外，我们将展示200μm的NA0.22光纤耦合激光器，其输出功率为135W。

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