Figure 5
From: High-power graphene mode-locked Tm/Ho co-doped fiber laser with evanescent field interaction
(a) The output power versus the pump power. Different color represents different operating regimes. (b) The repetition rate and orders of mode locking versus the pump power. The fundamental repetition rate to 21th harmonics mode-locking evolution versus the pump power, (c) the spectral evolution, (d) corresponding pule train evolution.
