Abstract
In this paper, we demonstrate a novel multiwavelength L-band
Brillouin–erbium fiber laser utilizing nonlinear amplifying loop
mirror. The erbium-doped fiber section in the fiber loop mirror provides
efficient amplification of Brillouin pump (BP) to generate the stimulated
Brillouin scattering in the single-mode fiber coil. The laser structure can
achieve symmetry breaking of the loop without requirements to an asymmetric
coupler or polarization controller. The proposed fiber laser has a low
threshold power of about 10 mW to create the first
Brillouin–Stokes signal. The maximum number of 27 Stokes signals
with a spacing of 0.089 nm is achieved by setting the BP wavelength at 1604
nm and its BP power is set at 2.2 mW.
© 2009 IEEE
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