Tunable spatiotemporal mode-locked fiber laser at 1.55 μm.
Tunable spatiotemporal mode-locked fiber laser at 1.55 μm.
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1.55 μm可调谐时空锁模光纤激光器。
DOI：
10.1364/oe.415318
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发表时间：
2021-03
期刊：
影响因子：
3.8
通讯作者：
Zelin Ma;Jin-gan Long;Wei Lin;Wei-Yi Hong;H. Cui;Z. Luo;Wen-Cheng Xu;M. Likhachev;S. Aleshkina-S.-Ale
中科院分区：
文献类型：
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作者：
Zelin Ma;Jin-gan Long;Wei Lin;Wei-Yi Hong;H. Cui;Z. Luo;Wen-Cheng Xu;M. Likhachev;S. Aleshkina-S.-Ale
报道了基于半导体可饱和吸收镜的1.55 μm时空锁模多模光纤激光器，锁模阈值低至104 mW。利用多模干涉滤波效应，不仅可以实现中心波长从1557 nm到1567 nm的连续调谐，而且可以通过简单地调节偏振控制器实现脉冲个数从1到4的连续调节。这为研究负色散区时空锁模脉冲的动力学特性提供了一个新的平台。此外，这种可调谐激光器在全光信号处理、光纤传感和信息编码等领域具有潜在的应用前景。
We report the spatiotemporal mode-locked multimode fiber laser operating at 1.55 µm based on semiconductor saturable absorber mirrors with the mode-locking threshold as low as 104 mW. Benefiting from the multimode interference filtering effect introduced in the laser cavity not only the central wavelength can be continuously tuned from 1557 nm to 1567 nm, but also the number of the output pulses can be adjusted from 1 to 4 by simply adjusting the polarization controllers. This work provides a new platform for exploring the dynamic characteristics of spatiotemporal mode-locked pulses at negative dispersion regime. Moreover, this kind of tunable laser has potential applications in fields of all-optical signal processing, fiber sensing and information coding.