| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 7135397 | Sensors and Actuators A: Physical | 2015 | 6 Pages |
Abstract
A kind of fiber-optic magnetic field sensor is proposed. The sensing structure is composed of singlemode-multimode-singlemode fiber structure cascaded with core-offset fusion splicing between singlemode fibers. The sensing principle is based on the cladding mode interference. Experimental results indicate that, the magnetic field sensing sensitivities of 65.9 pm/Oe and 0.1185 dB/Oe are obtained for wavelength interrogation and intensity interrogation, respectively. The corresponding measurement range of magnetic field strength is 30-110 Oe. The response of temperature is also investigated. The corresponding temperature sensitivities for the interference dip around 1594 nm is obtained to be â42 pm/°C and â0.124 dB/°C.
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Authors
Longfeng Luo, Shengli Pu, Shaohua Dong, Jiali Tang,