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基于MOPA结构与高能量种子源的高功率皮秒掺铥光纤放大器(英文)
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作者 陈荣 杨建龙 +2 位作者 祁湘宁 徐剑秋 唐玉龙 《光子学报》 EI CAS CSCD 北大核心 2016年第10期24-28,共5页
以单脉冲能量更高的孤子激光器为种子源,通过主振荡放大技术,获得了2μm波段的高功率、皮秒脉冲激光器.该种子源是一个被动锁模的光纤激光器,通过优化、管理激光器谐振腔内的色散,获得了脉冲宽度为50ps、重复频率为55.6 MHz、谱宽约为2... 以单脉冲能量更高的孤子激光器为种子源,通过主振荡放大技术,获得了2μm波段的高功率、皮秒脉冲激光器.该种子源是一个被动锁模的光纤激光器,通过优化、管理激光器谐振腔内的色散,获得了脉冲宽度为50ps、重复频率为55.6 MHz、谱宽约为21nm的高能量孤子脉冲输出.利用单模光纤在2μm波段的负啁啾色散特性,在进行功率放大之前将作为种子源的激光脉冲宽度展宽至600ps.最后,经过两级放大之后,获得平均功率约23 W、脉宽为660ps的激光输出.利用光栅对,对放大后的激光脉冲进行压缩,经测试压缩后的脉冲宽度约为0.9ps. 展开更多
关键词 色散补偿 高能量 孤子种子源 主振荡放大 高功率 皮秒 掺铥 光纤激光器
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Enhancing the Efficiencies of Organic Photovoltaic and Organic Light-Emitting Diode Devices by Regular Nano-Wrinkle Patterns
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作者 冀秦豫 张诚 +4 位作者 祁湘宁 李冉 胡晓 郭凌杰 杨天 《Journal of Shanghai Jiaotong university(Science)》 EI 2018年第1期45-51,共7页
Organic photovoltaic(OPV) cells and organic light-emitting diodes(OLEDs) are energy harvesting and generation devices that have attracted great attention these years because of their low costs, thin film structures,fl... Organic photovoltaic(OPV) cells and organic light-emitting diodes(OLEDs) are energy harvesting and generation devices that have attracted great attention these years because of their low costs, thin film structures,flexibility and environment-friendly manufacturing processes. For such thin film devices, photon management methods that increase the light absorption of OPV cells and the light extraction from OLEDs are highly desirable.Here, we report the experimental efforts to fabricate geometrically tunable and spontaneously formed nano-wrinkle structures with large areas, and the theoretical results on photon management with the nano-wrinkles. 展开更多
关键词 organic photovoltaics organic light-emitting diodes(OLEDs) nano-wrinkle photon management
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