Xu Xintong, Zhai Jianpang, Li Ling, Chen Yanping, Yu Yongqin, Zhang Min, Ruan Shuangchen, Tang Zikang
Shenzhen Key Laboratory of Laser Engineering, Shenzhen University 518060, Shenzhen, People's Republic of China.
Department of Physics, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, People's Republic of China.
Sci Rep. 2014 Oct 24;4:6761. doi: 10.1038/srep06761.
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.
我们展示了一种被动锁模掺铒光纤激光器（EDFL），它使用直径为0.3纳米的最小单壁碳纳米管（SWNTs）作为可饱和吸收体。这些超小的单壁碳纳米管是在磷酸锌铝-11（AEL）单晶的椭圆形纳米通道中制造的。通过将AEL晶体放入由980纳米激光二极管泵浦的EDFL腔中，在280毫瓦的阈值泵浦功率下实现了稳定的被动锁模，并在1563.2纳米处产生了重复频率为26.79兆赫兹的73皮秒脉冲。
