Period doubling of multiple dissipative-soliton-resonance pulses in a fiber laser

TL;DR

This paper experimentally demonstrates period doubling phenomena in multiple dissipative-soliton-resonance pulses within a fiber laser, revealing new dynamics in pulse behavior as pump power increases.

Contribution

It reports the first observation of period doubling in multiple DSR pulses in a fiber laser, expanding understanding of pulse dynamics under high power conditions.

Findings

Period doubling occurs in multiple DSR pulses with increased pump power.

The typical DSR pulse characteristics are maintained despite period doubling.

Multi-pulse states exhibit period doubling behavior in a fiber laser.

Abstract

We report on the experimental observation of period doubling of multiple dissipative-soliton-resonance (DSR) pulses in an all-normal-dispersion fiber laser based on a nonlinear amplifying loop mirror. By increasing the pump power, in addition to the typically linearly pulse broadening under fixed pulse peak power, the jump from a single DSR pulse to multiple DSR pulses was observed. During this process, the period doubling appears, that is, the DSR pulses can exhibit the characteristics of period doubling in a multi-pulse state. The typical DSR performance of linearly pulse duration change versus pump power varying can be maintained when the period doubling of multiple DSR pulses appears.