996 resultados para Nd YV O4


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GdFeCoNdGdFeCo,.NdGdFeCo,.NdGdFeCo,.

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LDANdYAG3PS31

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The suppressing effect of laser extraction on the non-radiation transition process is taken into account when the heat model of gain media is developed. Based on the developed heat model, the heat generation in the operating LD side-pumped Nd: YAG ceramic lasers is quantified through using the normalized heating parameter, which can be deduced from the experimental results of the slope efficiency and the absorbed pumping power of the gain media. The main factors which influence on the heat generation are investigated by studying the normalized heating parameter, and the results show that the changes of the laser extraction efficiency, the beam overlap efficiency and the Nd3+ concentration will result in obvious variations of the normalized heating parameter. In this work, the laser extraction efficiency increases to 0.905 by the optimization of the transmission of the output coupling, and the normalized heating parameter decrease to 0.474, correspondingly.

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LDNdYVO41.064m84W1031W374586W193W1064nmM^21.417

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LDNdYAGKD^P10Hz8ns2W1064nm

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NdYAG2222215mm75mmNdYAG230W1064nm52461160s08nm16mradNdYAGN

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QLGSLa3Ga5SiO14QLDNdYVO4Q10^4Hz28w5W7ns70kW65ns100kWQASEQ

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LDNdYAGQLDAQ100Hz416mJ5mm75mm1NdYAG50mJ1064nm12ns24KD^PQ

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1.0%NdYAG..,,0.63.NdYAG,.NdYAG.,.

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LDNdYLFCr^4YAGQ1053nm05mm90Cr^4 YAG17W606ns15W95kHz1579mJ055mm95Cr^4 YAG17W686ns135W14kHz

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NdYAGQ6Hz443

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Q Nd:YAG9060W10Hz1180mW1064nm-11%600mW532nm50%

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A planar waveguide laser operating in a negative branch unstable resonator is Q-switched by an acoustooptic mod latorin anew configuration, providing effective, high-speed switching. The laser using a 200-mu m Nd:YAG core, face pumped by 10 laser diode bars, has produced 100-W output in a good beam quality at 100-kHz pulse rate, and 4.5 mJ at lower frequency with 15-ns pulse duration.

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LADNdYAG1.13W64.9%60%8%

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,5bar,,,NdYVO4134W,38W,44%,M21.561.78,,,-,,,