“…5). Note, if the MZI consists of only one optical fiber, the phase shift difference can be induced by the effective refractive index difference between the fiber core and the cladding, which leads to mode dispersion of the optical signal [25][26][27][28][29].…”
Section: Mach-zehnder Interferometermentioning
confidence: 99%
“…Super magneto-strictive material was used for the magnetic field sensor. The sensing system had a magnetic field sensitivity of 1.33 MHz/mT and a magnetic field intensity measurement range of 20.9-58 mT, and the temperatureinduced interference error is only 0.09 mT [29].…”
Section: Magnetic Field Sensor Based On Magneto-strictive Materialsmentioning
Magnetic field sensing plays an important role in many fields of scientific research and engineering applications. Benefiting from the advantages of optical fibers, the optical fiber-based magnetic field sensors demonstrate characteristics of light weight, small size, remote controllability, reliable security, and wide dynamic ranges. This paper provides an overview of the basic principles, development, and applications of optical fiber magnetic field sensors. The sensing mechanisms of fiber grating, interferometric and evanescent field fiber are discussed in detail. Magnetic fluid materials, magneto-strictive materials, and magneto-optical materials used in optical fiber sensing systems are also introduced. The applications of optical fiber magnetic field sensors as current sensors, geomagnetic monitoring, and quasi-distributed magnetic sensors are presented. In addition, challenges and future development directions are analyzed.
Graphical Abstract
“…5). Note, if the MZI consists of only one optical fiber, the phase shift difference can be induced by the effective refractive index difference between the fiber core and the cladding, which leads to mode dispersion of the optical signal [25][26][27][28][29].…”
Section: Mach-zehnder Interferometermentioning
confidence: 99%
“…Super magneto-strictive material was used for the magnetic field sensor. The sensing system had a magnetic field sensitivity of 1.33 MHz/mT and a magnetic field intensity measurement range of 20.9-58 mT, and the temperatureinduced interference error is only 0.09 mT [29].…”
Section: Magnetic Field Sensor Based On Magneto-strictive Materialsmentioning
Magnetic field sensing plays an important role in many fields of scientific research and engineering applications. Benefiting from the advantages of optical fibers, the optical fiber-based magnetic field sensors demonstrate characteristics of light weight, small size, remote controllability, reliable security, and wide dynamic ranges. This paper provides an overview of the basic principles, development, and applications of optical fiber magnetic field sensors. The sensing mechanisms of fiber grating, interferometric and evanescent field fiber are discussed in detail. Magnetic fluid materials, magneto-strictive materials, and magneto-optical materials used in optical fiber sensing systems are also introduced. The applications of optical fiber magnetic field sensors as current sensors, geomagnetic monitoring, and quasi-distributed magnetic sensors are presented. In addition, challenges and future development directions are analyzed.
Graphical Abstract
“…Indeed, with OEOs it is possible to carry out the measurement or sensing of length, refractive index, temperature, angular velocity, load, strain, lowpower RF signal, magnetic field, amongst others (see Refs. [8][9][10][11][12][13][14][15][16] and references therein). For this purpose, several architectures were proposed for the efficiency of the method.…”
“…Indeed, with OEOs it is possible to carry out the measurement or sensing of length, refractive index, temperature, angular velocity, load, strain, lowpower RF signal, magnetic field, amongst others (see Refs. [8][9][10][11][12][13][14][15][16] and references therein). For this purpose, several architectures were proposed for the efficiency of the method.…”
In this work, we use the cubic-nonlinear optoelectronic oscillator (CNOEO) in three different configurations to successfully perform the sensings of temperature, refractive index, and distance measurement with high
precision. From our results, the use of the CNOEO through the variation of the values of the cubic-nonlinear parameter increases the sensitivity of the different sensings and the measurement carried out compared to the results obtained with the standard OEO which is a particular CNOEO featuring a cubic-nonlinear parameter equal to zero.
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