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Graphene Actively Mode‐Locked Lasers
Advanced Functional Materials ( IF 19.0 ) Pub Date : 2018-05-29 , DOI: 10.1002/adfm.201801539
Jakub Bogusławski 1, 2, 3 , Yadong Wang 2, 4 , Hui Xue 2 , Xiaoxia Yang 5 , Dong Mao 4 , Xuetao Gan 4 , Zhaoyu Ren 6 , Jianlin Zhao 4 , Qing Dai 5 , Grzegorz Soboń 1 , Jarosław Sotor 1 , Zhipei Sun 2, 7
Affiliation  

Actively mode‐locked lasers offer varying degrees of flexibility for a wider range of applications than their passively modulated counterparts, due to their capability for electrically controlled ultrahigh repetition rate operation. Graphene based electrooptic modulators with unique advantages of broad operation bandwidth and ultrafast speed are suitable for light modulation in various optoelectronic applications. Here, an actively mode‐locked laser with a graphene based electrooptic modulator is reported for the first time. The active mode‐locking technique combined together with the intracavity nonlinear pulse shortening effect allows the generation of transform‐limited 1.44 ps pulses with pulse energy of 844 pJ. The electrically controlled repetition rate of generated pulses, a key performance advantage of active mode‐locking, is also demonstrated. These results provide a practical and effective approach for actively mode‐locked lasers with broad operation bandwidth and compact footprint, which contributes a new way for applications of two‐dimensional (2D) layered materials in ultrafast lasers.

中文翻译:

石墨烯主动锁模激光器

有源锁模激光器与无源调制激光器相比,由于具有电控超高重复频率操作的能力,因此在更大范围的应用中提供了不同程度的灵活性。基于石墨烯的电光调制器具有宽工作带宽和超快速度的独特优势,适用于各种光电应用中的光调制。在这里,首次报道了基于石墨烯的电光调制器的主动锁模激光器。主动锁模技术与腔内非线性脉冲缩短效应相结合,可以产生变换限制的1.44 ps脉冲,脉冲能量为844 pJ。电子控制产生脉冲的重复频率,是主动锁模的主要性能优势,也得到了证明。这些结果为具有宽工作带宽和紧凑占用空间的主动锁模激光器提供了一种实用有效的方法,这为二维(2D)分层材料在超快激光器中的应用开辟了一条新途径。
更新日期:2018-05-29
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