The SnSSe SA with high modulation depth for passively Q-switched fiber laser

Nanophotonics

article

Jigen Chen¹  Mengli Liu²  Ximei Liu²  Yuyi Ouyang²  Wenjun Liu²  Zhiyi Wei³ 

[1]Provincial Key Laboratory for Cutting Tools, Taizhou University

[2]State Key Laboratory of Information Photonics and Optical Communications, School of Science, Beijing University of Posts and Telecommunications

[3]Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences

[4]State Key Laboratory of Pulsed Power Laser Technology, National University of Defense Technology

关键词: two-dimensional nanomaterials;    saturable absorbers;    mode-locked laser;    fiber lasers;   

DOI  :  10.1515/nanoph-2020-0113

学科分类：社会科学、人文和艺术（综合）

来源: De Gruyter

【 摘 要 】

IV–VI semiconductors have attracted widespread attention in basic research and practical applications, because of their electrical and optoelectronic properties comparable to graphene. Herein, an optical modulator based on SnSSe with strong nonlinearity is prepared by chemical vapor transfer method. The modulation depth of proposed SnSSe saturable absorber (SA) is up to 57.5%. By incorporating SnSSe SA into the laser, the Q-switched pulses as short as 547.8 ns are achieved at 1530.07 nm. As far as we know, this is the first successful application of SnSSe in Q-switched lasers. Our investigation not only prove the optical nonlinearity of SnSSe, but also reveal the potential of SnSSe SA in ultrafast photonics.

【 授权许可】

CC BY