Open AccessPolarization dynamics in dissipative soliton fiber lasers mode-locked by nonlinear polarization rotation
Author(s) -
Lingjie Kong,
Xiaosheng Xiao,
Changxi Yang
Publication year - 2011
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.19.018339
Subject(s) - dissipative soliton , polarization (electrochemistry) , physics , optics , polarizer , mode coupling , dissipative system , polarization rotator , fiber laser , laser , nonlinear system , birefringence , soliton , quantum mechanics , chemistry
We numerically studied the polarization dynamics in dissipative soliton lasers mode-locked by nonlinear polarization rotation (NPR). It was found that the polarization states of the intracavity dissipative soliton vary with time across the pulse. Depending on output coupling ratios, the polarization states of the pulse peak before the polarizer can be either nearly circular or nearly linear polarizations. The polarization dependent component in NPR is found to play a role of spectral filter under high and medium output coupling. However, NPR may work as a weak optical limiter under low output coupling, when additional spectral filtering is necessary to maintain steady mode-locking state.