Impact of the vectorial degrees of freedom on the nonlinear behavior of class B lasers

Vector solitons with locked and precessing states of polarization

“…As follows from Figs. 2-5, phase difference dynamics indicate the presence of coherent coupling between cross-polarized SOPs through the gain sharing and pump and in-cavity polarization controllers similar to the polarization dynamics of single-and multi-mode lasers without a saturable absorber [5][6][7][8][9][10]. It is well known from the theory of nonlinear coupled oscillators that weak coupling leads to a complex behavior, and increasing the coupling leads to stabilization of the behavior, i.e.…”

“…In such systems two laser modes with the same longitudinal and transverse spatial patterns and different polarization states, frequencies, and amplitudes interact through the gain sharing, phase-and amplitude selective nonlinear processes (Kerr nonlinearity) and in-cavity components (polarizers, polarization controllers etc.). As a result of the interaction, different polarization patterns have been found including polarization chaos [5][6][7][8][9][10]. In fiber lasers, due to long cavity length and wide gain bandwidth, typically, a large number of modes are generated.…”

Polarized optical feedback and noise effects on CO2laser polarization dynamics: spatial and temporal behavior

“…In particular, the degeneracy of the angular momentum states of the laser transition sublevels has been considered as the coupling source between different polarization states. Dynamical models have been developed to explore the role of the anisotropy due to the laser medium [2][3][4][5][6][7][8]. In a quasi-isotropic laser, the medium as well as the optical cavity introduce anisotropy.…”

Polarization Coding in CO2 Lasers: Spatial and Temporal Behavior

“…In particular, the degeneracy of the angular momentum states of the laser transition sublevels has been considered as the coupling source between different polarization states. Dynamical models have been developed to explore the role of the anisotropy due to the laser medium [1][2][3][4][5][6][7][8]. Recently, using quasi-isotropic class B lasers, it has been shown that it is possible to stabilize the emission on one of the two polarization modes by using an optical feedback and commute the polarization by a fast switch in the feedback arm [9][10][11].…”