Polarization attractors in harmonic mode-locked fiber laser

Abstract

Abstract:We report on a polarimetry of harmonic mode-locked erbium-doped fiber laser with carbon nanotubes saturable absorber. We find new types of vector solitons with locked, switching and precessing states of polarization. The underlying physics presents interplay between birefringence of a laser cavity created by polarization controller along with light induced anisotropy caused by polarization hole burning. References and links1. S. Arahira, H. Takahashi, K. Nakamura, H. Yaegashi, and Y. Ogawa, "Polarization-, wavelength-, and filter free all-optical clock recovery in a passively mode-locked laser diode with orthogonally pumped polarization diversity configuration," IEEE J. Quantum Electron. 45, 476-487 (2009).

Dynamic polarization attractors of dissipative solitons from carbon nanotube mode-locked Er-doped laser

“…Here attractor is defined as an asymptotic state demonstrating the evolution of state of polarization (SOP) at different time scales involving various mechanisms. Recently, it is observed various types of attractors such as fixed point, limited cycle, spiral attractors and so forth could appear in the polarization domain with the format of trajectories on the surface of Poincare sphere exhibiting continuous variation of the SOP [15][16][17][18][19][20][21][22]. Such behavior can be related with the laser cavity anisotropy, gain and loss dynamics.…”