Frequency comb with 100  GHz spacing generated by an asymmetric MQW passively mode-locked laser

作者：Lianping Hou, Yongguang Huang, Yihui Liu, Ruikang Zhang, Jiankun Wang, Baojun Wang, Hongliang Zhu, Bin Hou, Bocang Qiu, J.H. Marsh · 发表于：Optics Letters · 年份：2020 · DOI：10.1364/ol.392191 · 被引用次数：20 · 研究领域：Advanced Fiber Laser Technologies、Photonic Crystal and Fiber Optics、Laser-Matter Interactions and Applications

A L-band two-section AlGaInAs/InP asymmetric multiple quantum well (QW) passively mode-locked laser has been used to generate a frequency comb with a 100 GHz spacing at a central wavelength of 1610 nm. The comb contains 10 optical lines within a − 3 d B bandwidth of 8.05 nm and 34 optical lines within a − 20 d B bandwidth of 30 nm. The mode-locked pulse duration was 440 fs. To the best of our knowledge, this is the shortest pulse duration from any directly electrically pumped QW semiconductor mode-locked laser.