Passive harmonic mode-locking of Er-doped fiber laser using CVD-grown few-layer MoS2 as a saturable absorber
Xia Han-Ding, Li He-Ping†, Lan Chang-Yong, Li Chun, Deng Guang-Lei, Li Jian-Feng, Liu Yong
       
Performance of the laser operating at the 20th HML. (a) Output pulse train; (b) RF spectrum measured at 100-kHz RBW, presenting the SMSR at a level of 36.1 dB; (c) Optical spectrum; (d) Autocorrelation trace.