title: Passively mode-locking erbium-doped fiber lasers with 0.3 nm single-walled carbon nanotubes.
abstract: We demonstrate a passively mode-locked erbium-doped fiber laser (EDFL) by using the smallest single-walled carbon nanotubes (SWNTs) with a diameter of 0.3 nm as the saturable absorber. These ultrasmall SWNTs are fabricated in the elliptical nanochannels of a ZnAPO₄-11 (AEL) single crystal. By placing an AEL crystal into an EDFL cavity pumped by a 980 nm laser diode, stable passive mode-locking is achieved for a threshold pump power of 280 mW, and 73 ps pulses at 1563.2 nm with a repetition rate of 26.79 MHz.
authors.affiliation: Shenzhen Key Laboratory of Laser Engineering, Shenzhen University 518060, Shenzhen, People's Republic of China.
authors.forename: Xintong
authors.initials: X
authors.lastname: Xu
authors.affiliation: Shenzhen Key Laboratory of Laser Engineering, Shenzhen University 518060, Shenzhen, People's Republic of China.
authors.forename: Jianpang
authors.initials: J
authors.lastname: Zhai
authors.affiliation: Shenzhen Key Laboratory of Laser Engineering, Shenzhen University 518060, Shenzhen, People's Republic of China.
authors.forename: Ling
authors.initials: L
authors.lastname: Li
authors.affiliation: Shenzhen Key Laboratory of Laser Engineering, Shenzhen University 518060, Shenzhen, People's Republic of China.
authors.forename: Yanping
authors.initials: Y
authors.lastname: Chen
authors.affiliation: Shenzhen Key Laboratory of Laser Engineering, Shenzhen University 518060, Shenzhen, People's Republic of China.
authors.forename: Yongqin
authors.initials: Y
authors.lastname: Yu
authors.affiliation: Shenzhen Key Laboratory of Laser Engineering, Shenzhen University 518060, Shenzhen, People's Republic of China.
authors.forename: Min
authors.initials: M
authors.lastname: Zhang
authors.affiliation: Shenzhen Key Laboratory of Laser Engineering, Shenzhen University 518060, Shenzhen, People's Republic of China.
authors.forename: Shuangchen
authors.initials: S
authors.lastname: Ruan
authors.affiliation: Department of Physics, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, People's Republic of China.
authors.forename: Zikang
authors.initials: Z
authors.lastname: Tang