Dynamics of multifrequency mode-locking driven by homogenous and inhomogenous gain broadening effects
A complete characterization is given of the effects of homogeneous and inhomogeneous gain broadening on the mode-locking dynamics and stability of a laser operating simultaneously at N frequency channels. Using a low-dimensional model for the wavelength-division multiplexing interactions of the governing cubic-quintic master mode-locking equation, the interplay of the gain dynamics can be completely classified. This gives a simple way to characterize the laser performance and the parameter regimes under which stable multifrequency operation can be achieved. The analysis shows that a small amount of inhomogeneous gain broadening is critical for the multifrequency operation. The model further provides a simple framework for understanding the stability of mode-locked pulses at multiple frequencies, thus contributing to the characterization of the increasingly important and timely technology of dual-frequency and multifrequency mode-locked laser cavities. © 2008 Optical Society of America.
Journal of the Optical Society of America B: Optical Physics
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Bale, Brandon G.; Kutz, J. Nathan; and Farnum, Edward D., "Dynamics of multifrequency mode-locking driven by homogenous and inhomogenous gain broadening effects" (2008). Kean Publications. 2498.