Suspended-core fiber Sagnac combined dual-random mirror Raman fiber laser

in: Optics Express (2011)
Pinto, Ana Maria; López-Amo, Manuel; Kobelke, Jens; Schuster, Kay; Bravo, Mikel; Fernandez-Vallejo, Montserrat
In the present work, a multiwavelength fiber laser based in the combination of a double-random mirror and a suspended-core Sagnac interferometer is presented. The double-random mirror acts by itself as a random laser, presenting a 30dBm SNR, as result of multiple Rayleigh scattering events produced in the dispersion compensating fibers by the Raman amplification. The suspended-core fiber Sagnac interferometer provides the multi peak channeled spectrum, which can be tuned by changing the length of the fiber. The result of this combination is a stable multiwavelength peak laser with a minimum of ~25dBm SNR, which is highly sensitive to polarization induced variations.

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