Open AccessMultiwavelength Erbium-doped fiber laser em- ploying nonlinear polarization rotation in a symmetric nonlinear optical loop mirror
Author(s) -
Jiajun Tian,
Yong Yao,
Yunxu Sun,
Xuelian Yu,
Deying Chen
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.17.015160
Subject(s) - optics , fiber laser , materials science , laser , erbium , polarization maintaining optical fiber , polarization (electrochemistry) , ring laser , wavelength , physics , nonlinear system , optoelectronics , optical fiber , fiber optic sensor , chemistry , quantum mechanics
A new multiwavelength Erbium-doped fiber laser is proposed and demonstrated. The intensity-dependent loss induced by nonlinear polarization rotation in a power-symmetric nonlinear optical loop mirror (NOLM) suppresses the mode competition of an Erbium-doped fiber and ensures stable multiwavelength operation at room temperature. The polarization state and its evolution conditions for stable multiwavelength operation in the ring laser cavity are discussed. The number and spectra region of output wavelength can be controlled by adjusting the work states of NOLM.