Brillouin fiber optic current sensor |
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| Authors: | Alain Küng Pierre -A. Nicati Philippe A. Robert |
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| Affiliation: | (1) Swiss Federal Institute of Technology (EPFL), Metrology Laboratory, CH-1015 Lausanne, Switzerland |
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| Abstract: | A novel reciprocal Brillouin fiber optic current sensor has been developed and tested. The sensor is based on two counter-propagating Brillouin lasers circulating in a fiber ring cavity. It shows a sensitivity of 126 Hz/A that is very close to the maximum sensitivity obtained by using fibers without linear birefringence. The limitations due to the Kerr effect and optical feedbacks in the system are also investigated. |
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| Keywords: | stimulated Brillouin scattering (SBS) fiber ring resonator current sensor Kerr effect |
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