Highly stable MXene (V 2 CT x )-based harmonic pulse generation

Nanophotonics

article

Weichun Huang¹  Han Zhang²  Chunyang Ma²  Chao Li²  Ye Zhang²  Lanping Hu¹  Tingting Chen¹  Yanfeng Tang¹  Jianfeng Ju¹ 

[1]Nantong Key Lab of Intelligent and New Energy Materials, School of Chemistry and Chemical Engineering, Nantong University

[2]Collaborative Innovation Center for Optoelectronic Science & Technology, International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of Education, Institute of Microscale Optoelectronics, Shenzhen University

关键词: harmonic pulse generation;    layered materials;    mode-locked fiber lasers;    MXene;    V2CTx;   

DOI  :  10.1515/nanoph-2020-0134

学科分类：社会科学、人文和艺术（综合）

来源: De Gruyter

【 摘 要 】

MXene as a novel two-dimensional (2D) material exhibits a lot of advantages in nonlinear optics. However, the common MXene, Ti 3 C 2 T x and Ti 2 CT x nanosheets, easily suffer from degradation under ambient conditions, greatly limiting their practical applications. Here, we demonstrated one of MXene compounds, V 2 CT x , which has a strong modulation depth (nearly 50%), can serve as an excellent saturable absorber (SA) in passively mode-locked (PML) fiber lasers. More importantly, 206th harmonic order has been successfully generated in Er-doped mode-locked fiber laser, exhibiting maximum repetition rate of 1.01 GHz and pulse duration of 940 fs, which to the best of our knowledge, is the highest harmonic mode-locked fiber laser from the MXene SA so far. In addition, the high harmonic order mode-locked operation can maintain at least 24 h without any noticeable change, suggesting MXene V 2 CT x nanosheets have excellent stability in this mode-locked fiber laser. It is anticipated that the present work can pave the way to new design for MXene-based heterostructures for high-performance harmonic mode-locked lasers.

【 授权许可】

CC BY