Open AccessBrillouin-Erbium fiber laser with enhanced feedback coupling using common Erbium gain section
Author(s) -
Norhakimah Md Samsuri,
A. K. Zamzuri,
M. H. AlMansoori,
Aminah Ahmad,
Mohd Adzir Mahdi
Publication year - 2008
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.16.016475
Subject(s) - fiber laser , materials science , optics , erbium , brillouin zone , brillouin scattering , lasing threshold , dispersion shifted fiber , fiber , polarization maintaining optical fiber , laser power scaling , graded index fiber , laser , optical fiber , double clad fiber , optoelectronics , fiber optic sensor , physics , composite material
We demonstrate an enhanced architecture of Brillouin-Erbium fiber laser utilizing the reverse-S-shaped fiber section as the coupling mechanism. The enhancement is made by locating a common section of Erbium-doped fiber next to the single-mode fiber to amplify the Brillouin pumps and the oscillating Stokes lines. The requirement of having two Erbium gain sections to enhance the multiple Brillouin Stokes lines generation is neglected by the proposed fiber laser structure. The mode competitions arise from the self-lasing cavity modes of the fiber laser are efficiently suppressed by the stronger pre-amplified Brillouin pump power before entering the single mode fiber section. The maximum output power of 20 mW is obtained from the proposed fiber laser with 10 laser lines that equally separated by 0.089 nm spacing.