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Fifty percent internal slope efficiency femtosecond direct-written Tm~(3+):ZBLAN waveguide laser

机译:飞秒直写Tm〜(3 +):ZBLAN波导激光器的内部斜率效率为50%

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摘要

We report a 790 nm pumped, Tm~(3+) doped ZBLAN glass buried waveguide laser that produces 47 mW at 1880 nm, with a 50percent internal slope efficiency and an M~(2) of 1.7. The waveguide cladding is defined by two overlapping rings created by femtosecond direct-writing of the glass, which results in the formation of a tubular depressed-index-cladding structure, and the laser resonator is defined by external dielectric mirrors. This is, to the best of our knowledge, the most efficient laser created in a glass host via femtosecond waveguide writing.
机译:我们报告了一个790 nm抽运的Tm〜(3+)掺杂的ZBLAN玻璃掩埋波导激光器,它在1880 nm处产生47 mW的功率,内部斜率效率为50%,M〜(2)为1.7。飞秒由玻璃的飞秒直接写入产生,形成两个重叠的环,从而形成管状的低折射率覆层结构,而激光谐振器由外部介电镜定义,形成波导覆层。据我们所知,这是通过飞秒波导写入在玻璃主体中产生的最高效的激光。

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