Pulse growth dynamics in laser mode locking

Mark Popov, Omri Gat

Research output: Contribution to journalArticlepeer-review

7 Scopus citations


We analyze theoretically and numerically the nonlinear process of pulse formation in mode-locked lasers, starting from a perturbation of a continuous wave. Focusing on weak-to-moderate dispersion systems, we show that pulse growth is initially slow, dominated by a cascade of energy from low to high axial modes, followed by fast strongly nonlinear growth, and finally relaxation to the stable pulse wave form. The pulse grows initially by condensing a fixed amount of energy into a decreasing time interval, with peak power growing toward a finite-time singularity that is checked when the gain bandwidth is saturated by the pulse.

Original languageAmerican English
Article number011801
JournalPhysical Review A
Issue number1
StatePublished - 5 Jan 2018

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Publisher Copyright:
© 2018 American Physical Society.


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