Noise characterization of a bound state of two pulses in a passively mode-locked ytterbium-doped fiber laser

In the present study, the total cavity dispersion is adjusted to +0.047 ps², and the laser operates in a stretched-pulse regime. Passive mode-locking is achieved through nonlinear polarization rotation technique. For an adequate adjustment of the intra-cavity polarization controllers, the twin pulses regime could be initiated just by increasing pump power