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.
| Original language | English |
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| Title of host publication | SPIE Proceedings Vol. 8421 |
| Subtitle of host publication | OFS2012 22nd International Conference on Optical Fiber Sensors |
| Editors | Yanbiao Liao, Hoilut Ho, Wei Jin, David D. Sampson, Ryozo Yamauchi, Youngjoo Chung, Kentaro Nakamura, Yunjiang Rao |
| Number of pages | 4 |
| DOIs | |
| Publication status | Published - 4 Oct 2012 |
| Event | 22nd International Conference on Optical Fiber Sensors - Beijing, China Duration: 15 Oct 2012 → 19 Oct 2012 |
Conference
| Conference | 22nd International Conference on Optical Fiber Sensors |
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| Country/Territory | China |
| City | Beijing |
| Period | 15/10/12 → 19/10/12 |
Keywords
- multiplexable sensors
- electric fields
- Bragg gratings