Multiwavelength L-band brillouin-erbium comb fiber laser utilizing nonlinear amplifying loop mirror

• Main Authors: Al-Mansoori M.H., Mahdi M.A.
• Other Authors: 6505891021
• Format: Article
• Published: 2023
• Subjects: Brillouin scattering; Erbium; Nonlinear optics; Optical fiber lasers; Amplification; Fibers; Lasers; Mirrors; Optical materials; Scattering; Single mode fibers; Ultrasonics; Asymmetric couplers; Brillouin; Brillouin pump; Brillouin-erbium fiber lasers; Erbium doped fibers; Fiber loop mirrors; Laser structures; Low thresholds; Multiwavelength; Nonlinear amplifying loop mirrors; Polarization controllers; Stokes signal; Symmetry-breaking; Fiber lasers

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.