Open AccessOrigin of the bound states of pulses in the stretched-pulse fiber laser
Author(s) -
Michel Olivier,
Michel Piché
Publication year - 2009
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.17.000405
Subject(s) - optics , chirp , self phase modulation , pulse (music) , fiber laser , laser , modulation (music) , dispersion (optics) , cross phase modulation , nonlinear system , amplitude , amplitude modulation , physics , mode locking , bound state , position (finance) , nonlinear optics , phase modulation , frequency modulation , phase noise , bandwidth (computing) , telecommunications , quantum mechanics , detector , computer science , acoustics , finance , economics
A simple analytical model of the mechanism responsible for the formation of bound states of pulses in the stretched-pulse fiber laser is given. The proposed model is based on a noncoherent interaction occurring between the pulses near their position of maximum stretch within the dispersion-managed cavity, where the pulses possess a large linear chirp. This nonlinear interaction is due to the combined effects of the cross-phase modulation and the cross-amplitude modulation caused by the nonlinear gain associated with the mode-locking mechanism used in the laser. This model predicts the existence of a single bound state with a separation of the order of the pulsewidth at maximum stretch, a result consistent with simulations and experiments.