We report the observation of bound states of 350 pulses in a ring fiber laser mode locked by nonlinear rotation of the polarization. The phenomenon is described theoretically using a multiscale approach to the gain dynamics; the fast evolution of a small excess of gain is responsible for the stabilization of a periodic pattern, while the slow evolution of the mean value of gain explains the finite length of the quasiperiodic soliton train.
© 2008 Optical Society of America
Lasers and Laser Optics
Original Manuscript: November 12, 2007
Revised Manuscript: January 11, 2008
Manuscript Accepted: January 12, 2008
Published: February 29, 2008
Adil Haboucha, Hervé Leblond, Mohamed Salhi, Andrey Komarov, and François Sanchez, "Coherent soliton pattern formation in a fiber laser," Opt. Lett. 33, 524-526 (2008)