Experimental investigation of pedestal suppression in a figure-eight fiber laser by including a polarization asymmetrical NOLM

E. Hernández-Escobar; M. Bello-Jiménez; E. A. Kuzin; B. Ibarra-Escamilla; M. Duran-Sánchez; A. Díez; J. L. Cruz; M. V. Andrés

doi:10.1117/12.2209640

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11 March 2016 Experimental investigation of pedestal suppression in a figure-eight fiber laser by including a polarization asymmetrical NOLM

E. Hernández-Escobar, M. Bello-Jiménez, E. A. Kuzin, B. Ibarra-Escamilla, M. Duran-Sánchez, A. Díez , J. L. Cruz, M. V. Andrés

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Proceedings Volume 9728, Fiber Lasers XIII: Technology, Systems, and Applications; 97281D (2016) https://doi.org/10.1117/12.2209640
Event: SPIE LASE, 2016, San Francisco, California, United States

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, M. Bello-Jiménez, E. A. Kuzin, B. Ibarra-Escamilla, M. Duran-Sánchez, A. Díez , J. L. Cruz, and 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); https://doi.org/10.1117/12.2209640

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