Influence of saturable absorbers on fiber ring laser sensors

L. Rodriguez-Cobo; M. A. Quintela; R. Ruiz-Lombera; R. A. Perez-Herrera; M. Lopez-Amo; J. M. Lopez-Higuera

doi:10.1117/12.2263409

23 April 2017 Influence of saturable absorbers on fiber ring laser sensors

L. Rodriguez-Cobo, M. A. Quintela, R. Ruiz-Lombera, R. A. Perez-Herrera, M. Lopez-Amo, J. M. Lopez-Higuera

Author Affiliations +

Proceedings Volume 10323, 25th International Conference on Optical Fiber Sensors; 103232H (2017) https://doi.org/10.1117/12.2263409
Event: 25th International Conference on Optical Fiber Sensors, 2017, Jeju, Korea, Republic of

Abstract

In this work, a fiber ring laser sensor has been employed to analyze the influence of passive Er-doped fiber acting as saturable absorber. Lasing modes of fiber ring lasers can be reduced by properly locating a saturable absorber that narrows the spectral width of the FBG that selects the lasing wavelength. Employing commercial Er-doped fiber, different configurations have been evaluated, reaching the SLM regime on a ring cavity of several meters. Thus, the achieved strain response of the whole sensor behaves at its mirror FBG, exhibiting linear response to strain.

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L. Rodriguez-Cobo, M. A. Quintela, R. Ruiz-Lombera, R. A. Perez-Herrera, M. Lopez-Amo, and J. M. Lopez-Higuera "Influence of saturable absorbers on fiber ring laser sensors ", Proc. SPIE 10323, 25th International Conference on Optical Fiber Sensors, 103232H (23 April 2017); https://doi.org/10.1117/12.2263409

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