Ling Wei-Jun, Xia Tao, Dong Zhong, Zuo Yin-Yan, Li Ke, Liu Qing, Lu Fei-Ping, Zhao Xiao-Long, Wang Yong-Gang. Passively Q-switched mode-locked low threshold Tm, Ho: LLF laser with an single walled carbon nanotubes saturable absorberJ. Acta Physica Sinica, 2018, 67(1): 014201. DOI: 10.7498/aps.67.20171748