@article{3035049,
    title = "Delay differential equations enriched with nonlinear gain compression for passively mode-locked semiconductor lasers",
    author = "Simos, C. and Simos, I. and Georgiou, G.",
    journal = "Optical and Quantum Electronics",
    year = "2021",
    volume = "53",
    number = "1",
    publisher = "Springer-Verlag",
    issn = "0306-8919",
    doi = "10.1007/s11082-020-02688-9",
    keywords = "Differential equations;  Fabry-Perot interferometers;  Mode-locked fiber lasers;  Passive mode locking;  Semiconductor lasers;  Ultrafast lasers, Delay differential equations;  Fabry-Perot cavity;  Gain/absorption;  Nonlinear gains;  Original model;  Passively mode-locked;  Short pulse generation;  Travelling waves, Nonlinear equations",
    abstract = "Non-linear gain compression is well-known to play an important role in the dynamics of short-pulse generation and propagation in semiconductor lasers. Here, a previously reported delay differential equation model for passively mode-locked semiconductor lasers is enhanced with nonlinear gain compression terms in gain and absorber sections. We report the modified model equations and show the impact in gain/absorption dynamics with respect to the original model. In addition, we perform an extended comparison between the enriched delay differential equation model applied on a ring cavity and a travelling wave model applied on an equivalent Fabry-Perot cavity, highlighting the limits of quantitative and qualitative agreement between the two approaches. © 2021, The Author(s), under exclusive licence to Springer Science+Business Media, LLC part of Springer Nature."
}