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operation have been investigated under different pump light distributions that have been formed by a virtual-point-source pumping system. Compared with a central uniform distribution, a centrally depressed distribution is found to have a lower thermal lensing effect and a higher optical-to-optical efficiency for operations performed using the same resonator parameters or within a similar stable range, and the improvement in optical-to-optical efficiency is explained as a result of a reduction in thermally induced aberrations.
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Received: 10 June 1997
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Song, J., Liu, A., Shen, D. et al. High optical-to-optical efficiency of LD pumped cw Nd:YAG laser under pumping distribution control . Appl Phys B 66, 539–542 (1998). https://doi.org/10.1007/s003400050431
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DOI: https://doi.org/10.1007/s003400050431