Abstract
Different multiwavelength Raman fiber lasers based on a hybrid cavity
setup are proposed. The lasing schemes are based in highly birefringent photonic
crystal fiber loop mirrors combined with random cavities. The Hi-Bi PCF loop
mirrors are characterized by an interferometric output; whereas the random
mirrors are created by cooperative Rayleigh scattering due to Raman gain.
This configuration allows suppression of Rayleigh associated noise growth,
while taking advantage of it as an active part of the laser cavity, enhancing
the achievable gain. The proposed fiber lasers present stable operation at
room temperature although different output maxima and shapes depending on
the fiber loop mirror/random mirror combination.
© 2011 IEEE
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