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Distributed-feedback dye-doped solgel silica lasers

机译:分布式反馈染料掺杂的溶胶凝胶二氧化硅激光器

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摘要

Dye-doped solgel silica lasers with distributed feedback were demonstrated. Solgel silica slabs doped with Rhodamine 6G or Coumarin 460 dyes were fabricated. Periodic gain modulation in dye-doped solgel silica slabs were created by the interference pattern of the pumped laser beams diffracted by a holographic grating. Laser pulse trains with subnanosecond spikes were induced. Laser emission wavelengths were centered at 480 and 585 nm for Rhodamine 6G and Coumarin 460, respectively. It was possible for us to tune approximately 20 nm around the emission centers by varying the intersection angle. The laser linewidth was of the order of 60 pm.
机译:展示了具有分布式反馈的染料掺杂溶胶凝胶二氧化硅激光器。制备了掺有罗丹明6G或香豆素460染料的Solgel二氧化硅平板。染料掺杂的溶胶凝胶二氧化硅平板中的周期性增益调制是通过全息光栅衍射的泵浦激光束的干涉图样产生的。诱导出具有亚纳秒尖峰的激光脉冲序列。罗丹明6G和香豆素460的激光发射波长分别位于480和585 nm的中心。通过改变相交角,我们有可能在发射中心周围调谐约20 nm。激光线宽约为60 pm。

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