Observation of power drop and low threshold due to beam waist shrinkage around critical configurations in an end-pumped Nd:YVO4 laser

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题名:	Observation of power drop and low threshold due to beam waist shrinkage around critical configurations in an end-pumped Nd:YVO4 laser
作者:	Wu, H.-H., Sheu, C.-C., Chen, T.-W., Wei, M.-D., Hsieh, W.-F.
贡献者:	Department of Physics, Tunghai University
关键词:	Frequencies;Laser modes;Laser optics;Laser resonators;Optical pumping
日期:	1999
上传时间:	2013-05-14T09:06:13Z (UTC)
摘要:	Under pumping spot size less than that of the cavity mode, we observed a decrease of the fundamental mode power in an end-pumped solid-state laser when the cavity length was adjusted approaching certain critical resonator configurations where the transverse modes are degenerate. In the proximity of these configurations, we found, for the first time to our knowledge, that the laser exhibits a relatively low threshold pump power together with an unexpected far-field beam profile and shrinking beam waist.
關聯:	Optics Communications 165 (4) , pp. 225-229
显示于类别:	[應用物理學系所] 期刊論文

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