26 February 2013 Dual-wavelength fiber laser based on fine adjustment of cavity loss by a fiber optical loop mirror
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Abstract
We study experimentally the behavior of a dual wavelength Erbium doped fiber laser based on superimposed fiber Bragg gratings (SI-FBGs) and a loop mirror. The linear cavity is formed by a Hi-Bi Fiber Optical Loop Mirror (HBFOLM) and a SI-FBG. Three pairs of SI-FBGs were used to tune the dual wavelength laser at different wavelength ranges. The SIFBGs were placed on a mechanical mount that allow compression, both lines are shifted simultaneously. The separation of SI-FBGs is 5nm, and the set of three SI-FBGs permit to cover almost the entire spectrum of erbium from 1529nm to 1556nm approximately. The HBFOLM is used as a spectral tunable filter, which adjusts the losses by controlling the temperature in the Hi-Bi fiber, in order to stabilize the dual wavelength emission of the laser.
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M. Durán Sánchez, E. A. Kuzin, B. Ibarra-Escamilla, A. González-García, J. L. Cruz, M. V. Andrés, O. Pottiez, "Dual-wavelength fiber laser based on fine adjustment of cavity loss by a fiber optical loop mirror", Proc. SPIE 8601, Fiber Lasers X: Technology, Systems, and Applications, 86012G (26 February 2013); doi: 10.1117/12.2003064; https://doi.org/10.1117/12.2003064
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