Impact of Third Order Dispersion on Dissipative Soliton Resonance

TL;DR

This study numerically investigates how third order dispersion influences dissipative soliton resonance, revealing effects on pulse duration, symmetry, and dependence on nonlinear gain, which are crucial for laser design.

Contribution

It provides the first detailed analysis of TOD's impact on DSR, highlighting changes in pulse shape, duration, and stability within the complex cubic-quintic Ginzburg-Landau framework.

Findings

DSR can exist with TOD with similar amplitude but altered duration

TOD causes asymmetry and steepening of DSR pulses

Pulse duration depends significantly on chromatic dispersion and TOD

Abstract

Dissipative soliton resonance (DSR) is a promising way for high-energy pulse generation typically having a symmetrical square pulse profile. While this method is well known, the impact of third order dispersion (TOD) on DSR is yet to be fully addressed in the literature. In this article, the impact of TOD on DSR is numerically investigated under the frame of the complex cubic-quintic Ginzburg-Landau equation (CQGLE). Our numerical investigations indicate that DSR can stably exist under TOD with nearly the same pulse amplitude, but with a (significantly) different pulse duration. Depending on the value of chromatic dispersion, the pulse duration can be notably longer or shorter due to the presence of TOD. The TOD effect also alters the dependence of pulse duration on the nonlinear gain. Another impact of TOD on DSR is that the DSR exists with an asymmetric pulse profile, leading to steepening of one edge of the DSR pulse, while flattening of the other. Our results indicate that TOD has a critical role for realizing DSR in mode-locked lasers and it should be taken into consideration during design and development of DSR-based lasers.