Self-starting dynamics of continuous-waves stability in a generalized complex nonlinear transparent media for passively mode-locked lasers with fast saturable absorbers

Abstract

The dynamics and stability of continuous-waves in a K-order complex nonlinear transparent media for passively mode-locked lasers with fast saturable absorbers is theoretically and systematically studied. The Benjamin modulational-instability techniques was used, assuming that in the mode-locked regime, the laser will find full expression just after the continuous-waves (cws) become unstable. A global analysis of the operation regimes are established. The model is described by a K-order term generated by K-photon ionization processes of a complex Ginzburg-Landau (CGL) equation, and plasma generation coupled to a first order differential Drude’s equation for the electron plasma density with electron-hole radiative recombination effects. Basis conditions were established for various stability regime for cw. From this, we observed that an increase in the number of photon rate K induced self-starting for normal dispersion regime. We were also able to establish that an increase in the laser input field intensity which essentially favored the self-starting laser process.

Michelson interferometer-based tunable multiwavelength thulium-doped fluoride fiber laser in S-band for 5 G networks

“…As a result, optical fiber lasers have captured the interest of researchers due to their versatile applications in commercial, industrial, medical, and military. Different techniques have been implemented to design optical fiber lasers, such as mode-locked, single-wavelength continuous wave, multiwavelength, dual-wavelength, and Q-switched lasers [1][2][3][4]. The multiwavelength fiber lasers have broadly contributed to developing technologies like optical fiber sensors, high-speed communication, 5 G networks, spectroscopy, and optical instrument testing [5][6][7][8].…”