Chinese Optics Letters, 2014, 12 (s2): S21402, Published Online: Nov. 12, 2014
Q-switched Er-doped fiber laser with single-walled carbon nanotube saturable absorber by evanescent field
Abstract
A Q-switched Er-doped all-fiber laser, based on a single-walled carbon nanotube saturable absorber (SA) is constructed. The SA with a modulation depth of 8% is prepared using a special chemical-corrosion method. Furthermore, the SA is introduced to an Er-doped all-fiber laser, and Q-switching is obtained successfully. The repetition rate of the Q-switched laser can be tuned continuously from 128 to 278 kHz with pulse widths from 1.92 μs to 488 ns. The maximum output power is 13.1 mW.
Xinzheng Dong, Jinrong Tian, Zhenhua Yu, Yanrong Song. Q-switched Er-doped fiber laser with single-walled carbon nanotube saturable absorber by evanescent field[J]. Chinese Optics Letters, 2014, 12(s2): S21402.