Thermal lensing characterization of a high-radiance 946nm planar waveguide laser
Thermal lensing characterization of a high-radiance 946nm planar waveguide laser
复制标题
高亮度 946nm 平面波导激光器的热透镜特性
DOI:
10.1117/12.922895
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发表时间:
2012
期刊:
影响因子:
--
通讯作者:
Ng S
中科院分区:
文献类型:
--
作者:
Ng S
We present the characterization of the in-plane thermal lens in a quasi-four-level Nd:YAG planar waveguide (PW) laser configured for high-radiance operation with an external stable-cavity. Our approach utilises the measurement of the laser's output irradiance distribution at the near- and far-field positions concurrently in order to obtain the "real time" beam propagation parameter and thus beam quality factor, M2. Coupled with the knowledge of the intra-cavity-thermal-lens- dependent beam sizes at an intra-cavity beam waist, the power dependent effective thermal lens focal length was characterized. A thermal lens focal length of >450 mm was obtained at all incident pump powers up to the maximum level of 87 W. This characterization enabled the build of a 29 W 946 nm PW laser with a record output radiance of 4.3 TWm-2sr-1.
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影响因子:
2.5
作者:
Jiancun Gao;J. Speiser;A. Giesen
通讯作者:
A. Giesen
DOI:
10.1117/12.847996
发表时间:
2010
期刊:
--
影响因子:
--
作者:
Mackenzie J
通讯作者:
Mackenzie J
影响因子:
2.5
作者:
J. Mackenzie;C. Li;D. Shepherd
通讯作者:
D. Shepherd
影响因子:
2.5
作者:
S. Silvestri;P. Laporta;V. Magni
通讯作者:
V. Magni