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Second and third harmonics and flattened supercontinuum generation in tellurite microstructured fibers

机译:亚碲酸盐微结构纤维中的二次谐波和三次谐波以及超连续谱的展平

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摘要

We report what we believe to be the first demonstration of the second and third harmonics in tellurite microstructured fibers pumped by a 1557 nm femtosecond fiber laser. The intensities of the second and third harmonics are enhanced by increasing the nonlinear coefficient of the tellurite microstructured fiber. By using tellurite microstructured fiber with a core diameter of approx=2.7 (mu)m, supercontinuum light expanding from 470 nm to 2400 nm could be achieved. The effects of the fiber-core diameter on the flatness of the supercontinuum light are also investigated when pumped at 1557 nm.
机译:我们报告了我们认为是由1557 nm飞秒光纤激光器泵浦的亚碲酸盐微结构光纤中二次谐波和三次谐波的首次演示。通过增加亚碲酸盐微结构纤维的非线性系数,可以增强二次谐波和三次谐波的强度。通过使用纤芯直径为约2.7μm的亚碲酸盐微结构纤维,可以实现从470nm扩展到2400nm的超连续光。当在1557 nm泵浦时,还研究了纤芯直径对超连续光的平坦度的影响。

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