17 October 2012 Intrinsic, multiplexable sensors for electric field strength using structural slow light in phase-shifted fibre Bragg gratings
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Proceedings Volume 8421, OFS2012 22nd International Conference on Optical Fiber Sensors; 84212J (2012) https://doi.org/10.1117/12.939472
Event: OFS2012 22nd International Conference on Optical Fiber Sensor, 2012, Beijing, China
Abstract
In this paper we demonstrate through simulation the potential for phase-shifted fibre Bragg gratings incorporating structural slow light to enable intrinsic reflection-mode point sensors for electric field or voltage. It is shown that lo-bi FBGs incorporating multiple phase shifts yield large enhancements in group index (group delay) at resonance, thus amplifying and localizing time-dependent non-reciprocal effects. A relative, multiplexable measurement of electric field by comparison of the phase unbalance between linear modes on and off resonance is proposed, yielding static resolutions of 24 V and 18 mV respectively in unpoled (dc Kerr effect) and poled (Pockels effect) fibres.
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Philip Orr, Philip Orr, Paweł Niewczas, Paweł Niewczas, } "Intrinsic, multiplexable sensors for electric field strength using structural slow light in phase-shifted fibre Bragg gratings", Proc. SPIE 8421, OFS2012 22nd International Conference on Optical Fiber Sensors, 84212J (17 October 2012); doi: 10.1117/12.939472; https://doi.org/10.1117/12.939472
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