Transverse-mode selective laser operation by unicursal fast-scanning pumping.
Transverse-mode selective laser operation by unicursal fast-scanning pumping.
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DOI：
10.1364/ol.40.003245
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发表时间：
2015-07
期刊：
影响因子：
3.6
通讯作者：
Takumi Sato;Y. Kozawa;S. Sato
中科院分区：
文献类型：
--
作者：
Takumi Sato;Y. Kozawa;S. Sato
We demonstrate that higher order transverse-mode beams can be selectively operated by creating their suitable gain distributions in a laser gain medium. By adjusting the scanning angles and the phase difference between two resonant scanning mirrors used for the manipulation of pump beam patterns, a wide variety of gain distributions such as linear, elliptical, and circular patterns were generated. As a result, single transverse-mode operations of many higher order transverse modes of Hermite-Gaussian, Laguerre-Gaussian, and Ince-Gaussian beams were realized. The switching of these modes was readily and quickly accomplished without further mechanical alignment and any optical elements.
