Self-starting ultrafast fiber lasers mode-locked with alcohol
Self-starting ultrafast fiber lasers mode-locked with alcohol
复制标题
用酒精锁模的自启动超快光纤激光器
DOI：
10.1364/ol.40.003699
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发表时间：
2015-08-15
期刊：
影响因子：
3.6
通讯作者：
Fang, Xiao
中科院分区：
文献类型：
--
作者：
Wang, Zhiqiang;Zhan, Li;Fang, Xiao
我们报告了一种基于无水酒精的新型可饱和吸收体（SA），用于锁模光纤激光器（MLFL）。 SA 是一种光纤插芯，其一个酒精端面由聚乙烯 (PE) 薄膜密封。测得其调制深度为5.9%。此外，使用这种酒精-SA 的自启动 MLFL 已被证明可以在 1594.6 nm 处产生 972-fs 脉冲。单脉冲能量高达1.8 nJ，重复频率为20.97 MHz，信噪比（SNR）高于50 dB。 MLFL具有自启动、稳定性好、脉冲能量高等特点。这种具有高损伤阈值、成本效益高、易于制备的SA可能会在超快激光器中得到广泛的应用。此外，它可能引起人们对超快激光器有机液体锁模功能的广泛考虑。 (C) 2015年美国光学学会
We report a novel saturable absorber (SA) based on anhydrous alcohol for mode-locked fiber lasers (MLFLs). The SA is an optical ferrule with one alcoholic end-facet sealed by a polyethylene (PE) film. Its modulation depth is measured to be 5.9%. Also, a self-starting MLFL using such an alcohol-SA has been demonstrated to generate 972-fs pulses at 1594.6 nm. The single pulse energy is up to 1.8 nJ with the repetition rate of 20.97 MHz, and the signal-to-noise ratio (SNR) is higher than 50 dB. The MLFL exhibits the performance of self-starting, good stability, and high pulse energy. Such a cost-effective and easily-prepared SA with high damage threshold may find wide applications for ultrafast lasers. Besides, it may arouse wide considerations of the mode-locking function of organic liquids for ultrafast lasers. (C) 2015 Optical Society of America