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Multiwatt continuous wave Nd:KGW laser with hot-band diode pumping

机译:带热带二极管泵浦的多瓦连续波Nd:KGW激光器

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We have demonstrated what we believe is the first continuous wave neodymium-doped potassium gadolinium tungstate crystal (Nd: KGW) laser with hot-band diode pumping at similar to 910 nm. This pumping wavelength reduced the quantum defect by >46% as compared to conventional similar to 810 nm pumping and resulted in significantly lower thermal lensing. The laser produced 2.9 W of average output power at 1067 nm in a diffraction-limited beam for an absorbed pump power of 8.3 W. The slope efficiency and optical-to-optical efficiency were found to be 43% and 35%, respectively. Significant reduction of quantum defect offered by this pumping wavelength and availability of suitable high-power laser diodes opens up an attractive way to further power and efficiency scaling of Nd: KGW lasers. (C) 2016 Optical Society of America
机译:我们已经证明了我们相信的第一个连续波掺钕钨酸钾potassium钨晶体(Nd:KGW)激光器具有类似于910 nm的热带二极管泵浦。与类似于810 nm泵浦的传统泵浦波长相比,该泵浦波长将量子缺陷减少了> 46%,并导致热透镜显着降低。该激光器在1067 nm处的衍射极限光束中产生了2.9 W的平均输出功率,吸收的泵浦功率为8.3W。斜率效率和光-光效率分别为43%和35%。这种泵浦波长可显着减少量子缺陷,并提供合适的高功率激光二极管,为进一步提高Nd:KGW激光器的功率和效率定标开辟了诱人的途径。 (C)2016美国眼镜学会

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