Passive harmonic mode-locking of Er-doped fiber laser using CVD-grown few-layer MoS |
Performance of the laser mode-locked with the fundamental repetition rate. (a) Output pulse train; (b) RF spectrum measured at 3-kHz RBW, presenting the SNR at a level of 60.2 dB; (c) Optical spectrum; (d) Autocorrelation trace. |