Abstract
Intermittent dynamics switching on the route to chaos in a discrete-mode laser
with long time-delayed feedback is experimentally and numerically studied by analyzing the time series, power spectra and phase portraits. The results show
two types of dynamics switching: one or multiple times regular intermittent dynamics switching between stable state and square-wave envelope period-one oscillation within one feedback round time, and the irregular intermittent dynamics switching between stable state and quasi-periodic or multi-states or chaos with higher feedback ratio and bias currents. The relationship between the duty cycle of period-one oscillation and the feedback ratio has been analyzed. The map of the dynamics distribution in the parameter space of feedback ratio and bias current is plotted for a better understanding
of dynamics evolution in long external cavity discrete-mode lasers
with long time-delayed feedback is experimentally and numerically studied by analyzing the time series, power spectra and phase portraits. The results show
two types of dynamics switching: one or multiple times regular intermittent dynamics switching between stable state and square-wave envelope period-one oscillation within one feedback round time, and the irregular intermittent dynamics switching between stable state and quasi-periodic or multi-states or chaos with higher feedback ratio and bias currents. The relationship between the duty cycle of period-one oscillation and the feedback ratio has been analyzed. The map of the dynamics distribution in the parameter space of feedback ratio and bias current is plotted for a better understanding
of dynamics evolution in long external cavity discrete-mode lasers
| Original language | English |
|---|---|
| Pages (from-to) | 1336-1342 |
| Journal | Photonics Research |
| Volume | 9 |
| Issue number | 7 |
| Early online date | 28 Jun 2021 |
| DOIs | |
| Publication status | Published - Jul 2021 |