11 March 2016 Experimental investigation of pedestal suppression in a figure-eight fiber laser by including a polarization asymmetrical NOLM
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Abstract
A polarization asymmetrical nonlinear optical loop mirror (NOLM) is investigated to perform pedestal-free optical pulses in a figure-eight laser (F8L). The results demonstrate that in the low-power regime the NOLM operates as a halfwave plate and the output polarization is orthogonal to the input one. However, at higher power level the polarization component parallel to the input appears, with a transmission that always begins from zero at low power, allowing the rejection of low-intensity components. Experimental results demonstrate that by employing this configuration we can obtain a contrast between the peak and continuous background higher that 40 dB.
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E. Hernández-Escobar, E. Hernández-Escobar, M. Bello-Jiménez, M. Bello-Jiménez, E. A. Kuzin, E. A. Kuzin, B. Ibarra-Escamilla, B. Ibarra-Escamilla, M. Duran-Sánchez, M. Duran-Sánchez, A. Díez , A. Díez , J. L. Cruz, J. L. Cruz, M. V. Andrés, M. V. Andrés, } "Experimental investigation of pedestal suppression in a figure-eight fiber laser by including a polarization asymmetrical NOLM", Proc. SPIE 9728, Fiber Lasers XIII: Technology, Systems, and Applications, 97281D (11 March 2016); doi: 10.1117/12.2209640; https://doi.org/10.1117/12.2209640
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