Visualizing the Phase-Space Dynamics of an External Cavity Semiconductor Laser
Abstract
We map the phase-space trajectories of an external-cavity semiconductor laser using phase portraits. This is both a visualization tool as well as a thoroughly quantitative approach enabling unprecedented insight into the dynamical regimes, from continuous-wave through coherence collapse as feedback is increased. Namely, the phase portraits in the intensity versus laser-diode terminal-voltage (serving as a surrogate for inversion) plane are mapped out. We observe a route to chaos interrupted by two types of limit cycles, a subharmonic regime and period-doubled dynamics at the edge of chaos. The transition of the dynamics are analyzed utilizing bifurcation diagrams for both the optical intensity and the laser-diode terminal voltage. These observations provide visual insight into the dynamics in these systems.
Cite
@article{arxiv.1709.06795,
title = {Visualizing the Phase-Space Dynamics of an External Cavity Semiconductor Laser},
author = {C. Y. Chang and Michael J. Wishon and Daeyoung Choi and K. Merghem and Francois Lelarge and A. Martinez and A. Locquet and D. S. Citrin},
journal= {arXiv preprint arXiv:1709.06795},
year = {2017}
}