Noise-like pulse in a gain-guided soliton fiber laser.
We report on the operation of a passively mode-locked fiber ring laser made of purely positive dispersion fibers and mode-locked by using the nonlinear polarization rotation technique. It was experimentally found that apart from the gain-guided soliton operation the laser can also emit a kind of noise-like pulse. We show numerically that the noise-like pulse emission is caused by the peak power clamping effect of the laser cavity on the gain-guided soliton.
Zhao
L M
LM
Tang
D Y
DY
Wu
J
J
Fu
X Q
XQ
Wen
S C
SC