Solitary pulse shaping dynamics in cavity-dumped laser oscillators

Abstract

Abstract:The pulse shaping dynamics of a diode-pumped laser oscillator with cavity dumping operating in the solitary regime is studied experimentally and numerically. The stability of the laser system is investigated in dependence on the relevant laser parameters. With a stroboscopic detection technique the intracavity temporal and spectral pulse profiles are measured between two dumping events. The results are compared to the numerical analysis of the system. Due to the strong periodic disturbance of the solitary pulse imposed by the dumping process a second set of Kelly-side bands can be identified.

Numerical analysis of a sub-picosecond thin-disk laser oscillator with active multipass geometry showing a variation of pulse duration within one round trip

“…However, to our knowledge, no analysis of a solitary mode-locked laser oscillator with large OC rates and highly dispersive and nonlinear elements has been performed so far. Numerical analyses of cavity-dumped systems [17] or mode-locked fiber lasers [18] are similar to the analysis of a laser with an AMC; however, no detailed analysis has been performed for comparable parameters so far. Because of the large OC rates the approximations made in the Haus master equation of mode locking are not applicable.…”

Theoretical Analysis of Dependence of Nonlinear Effects in Mode-Locked Yb:YAG Lasers with a Highly Nonlinear Intra-Cavity Medium

“…To model the nonlinear effect for spectral broadening, the SPM in the gain and nonlinear media was included. Finally, ψ is the phase shift per round-trip of the laser [11][12][13][14][15][16]. Figure 2 shows the block model of the mode-locked Yb:YAG laser with a highly nonlinear intra-cavity medium and shows how the optical elements can be distributed into four separate units.…”