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首页> 外文会议>Annual solid state and diode laser technology review;SSDLTR 2009; 20090629-0702;20090629-0702; Newton, MA(US);Newton, MA(US) >High-Brightness, Fiber-Coupled Lasers Enabled by Beam Combination of Diode Laser Bars
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High-Brightness, Fiber-Coupled Lasers Enabled by Beam Combination of Diode Laser Bars

机译：通过二极管激光棒的光束组合实现的高亮度光纤耦合激光器

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摘要

Beam combination of individual emitters of diode laser bars has the potential to dramatically improve the lateral axis beam parameter product (BPP). Unlike some other techniques, the vertical BPP of each diode laser is unaffected. This makes WBC appropriate for fiber coupling high-power stacks into fiber sizes typical for discrete single emitters. We have demonstrated nearly 150 W from an uncoated 100-μm core, 0.2-NA fiber, which represents an extremely high brightness level from a system based on diode laser bars. These results benefit from improvements in device design and packaging as well as advances in dielectric gratings and optical modeling. Preliminary data on power stability indicates that the grating is unaffected by the high intensity of CW light and no stringent temperature control is needed on the cooling water for the diode laser stacks.
机译：二极管激光棒的各个发射器的光束组合有可能极大地改善横轴光束参数积（BPP）。与某些其他技术不同，每个二极管激光器的垂直BPP均不受影响。这使得WBC适合将高功率堆叠光纤耦合成分立的单个发射器所需的典型光纤尺寸。我们已经证明了未经涂覆的100-μm芯0.2-NA光纤的功率将近150 W，这代表了基于二极管激光棒的系统的极高亮度。这些结果得益于器件设计和封装的改进以及介电光栅和光学建模的进步。有关功率稳定性的初步数据表明，光栅不受CW光高强度的影响，并且不需要对二极管激光器堆栈的冷却水进行严格的温度控制。

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