| Transverse mode transition and LG01-mode generation in an end-pumped Nd：YV04 laser |
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| 作者姓名： | 姚瑶 夏克贵 康民强 方志强 李建郎 |
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| 基金项目： | This work was supported by the National Natural Science Foundation of China （No. 61275206） and the National ＂973＂＇ Project of China （No. 2014CB921300）. |
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| 摘 要： | A laser-diode end-pumped Nd：YVO4 crystal laser is demonstrated to emit the first-order Laguerre- Gaussian （LGm） mode with 502-mW laser power and 22% slope efficiency. Tile LGm-mode is lased only when the pumping area locates in the central part of the laser crystal＇s front surface, and thereafter the symmetrical LGm-HGol-TEM00 mode transition happens when laser crystal is moved laterally inside several-tens-micron area. The possible mechanism responsible for the phenomenon of symmetrical mode transition is also discussed.
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| 关 键 词： | Nd YV04激光器 二极管端面泵浦 模式转换 Nd YVO4晶体 TEM00模 斜率效率 激光功率 激光晶体 |
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