Wavelength-tunable picosecond soliton fiber laser with topological insulator : Bi2Se3 as a mode locker

• Main Authors: Zhao, Chujun, Zou, Yanhong, Chen, Yu, Wang, Zhiteng, Lu, Shunbin, Zhang, Han, Wen, Shuangchun, Tang, Dingyuan
• Other Authors: School of Electrical and Electronic Engineering
• Format: Article
• Language: English
• Published: 2013
• Subjects: DRNTU::Engineering::Electrical and electronic engineering
• Online Access: https://hdl.handle.net/10356/100501; http://hdl.handle.net/10220/10970
• Institution: Nanyang Technological University

Based on the open-aperture Z-scan measurement, we firstly uncovered the saturable absorption property of the topological insulator (TI): Bi2Se3. A high absolute modulation depth up to 98% and a saturation intensity of 0.49 GWcm−2 were identified. By incorporating this novel saturable absorber materi...