[1] [1] D. Shi, M. Sadat, A. Dunn, and D. Mast, “Photo-fluorescent and magnetic properties of iron oxide nanoparticles for biomedical applications,” Nanoscale, 2015, 7(18): 8209-8232.

[2] [2] D. Toghraie, S. Alempour, and M. Afrand, “Experimental determination of viscosity of water-based magnetite nanofluid for application in heating and cooling systems,” Journal Magnetism and Magnetic Materials, 2016, 417: 243-248.

[3] [3] Y. Zhao, X. Wang, R. Lv, G. Li, H. Zheng, and Y. Zhou, “Highly sensitive reflective Fabry-Perot magnetic field sensor using magnetic fluid based on Vernier effect,” IEEE Transactions on Instrumentation and Measurement, 2021, 70: 1-8.

[4] [4] Z. Li, C. Liao, J. Song, Y. Wang, F. Zhu, Y. Wang, et al., “Ultrasensitive magnetic field sensor based on an in-fiber Mach-Zehnder interferometer with a magnetic fluid component,” Photonics Research, 2016, 4(5): 197-201.

[5] [5] N. Alberto, M. Domingues, C. Marques, P. Andre, and P. Antunes, “Optical fiber magnetic field sensors based on magnetic fluid: a review,” Sensors, 2018, 18(12): 4325.

[6] [6] P. Li, H. Yan, Z. Xie, Y. Li, and X. Zhao, “An intensity-modulated and large bandwidth magnetic field sensor based on a tapered fiber Bragg grating,” Optics and Laser Technology, 2020, 125: 105996.

[7] [7] J. Zheng, X. Dong, P. Zu, L. Shao, C. Chan, Y. Cui, et al., “Magnetic field sensor using tilted fiber grating interacting with magnetic fluid,” Optics Express, 2013, 21(15), 17863-17868.

[8] [8] Y. Luo, X. Lei, F. Shi, and B. Peng, “A novel optical fiber magnetic field sensor based on Mach-Zehnder interferometer integrated with magnetic fluid,” Optik, 2018, 174: 252-258.

[9] [9] H. Zhang, Y. Li, B. Yuan, L. Meng, F. Cheng, Z. Yuan, et al., “Magnetic field sensor based on S-shaped and core-offset fusion splicing structure of single-mode fiber coated with magnetic fluid,” Optik, 2021, 245: 167630.

[10] [10] Z. Ruan, L. Pei, T. Ning, J. Wang, J. Wang, J. Li, et al., “Simple structure of tapered FBG filled with magnetic fluid to realize magnetic field sensor,” Optical Fiber Technology, 2021, 67: 102698.

[11] [11] P. Zu, C. Chan, W. Lew, L. Hu, Y. Jin, H. Liew, et al., “Temperature-insensitive magnetic field sensor based on nanoparticle magnetic fluid and photonic crystal fiber,” IEEE Photonics Journal, 2012, 4(2): 491-498.

[12] [12] J. Dai, M. Yang, X. Li, H. Liu, and X. Tong, “Magnetic field sensor based on magnetic fluid clad etched fiber Bragg grating,” Optical Fiber Technology, 2011, 17(3): 210-213.

[13] [13] J. Zheng, X. Dong, P. Zu, L. Shao, C. Chan, Y. Cui, et al., “Magnetic field sensor using tilted fiber grating interacting with magnetic fluid,” Optics Express, 2013, 21(15): 17863-17868.

[14] [14] Y. Zhu, X. Jin, H. Chi, S. Zheng, and X. Zhang, “High-sensitivity temperature sensor based on an optoelectronic oscillator,” Applied Optics, 2014, 53(22): 5084-5087.

[15] [15] Q. Shi, Y. Wang, Y. Cui, W. Xia, D. Guo, and M. Wang, “Resolution-enhanced fiber grating refractive index sensor based on an optoelectronic oscillator,” IEEE Sensors Journal, 2018, 18(23): 9562-9567.

[16] [16] Z. Fan, J. Su, T. Zhang, N. Yang, and Q. Qiu, “High-precision thermal-insensitive strain sensor based on optoelectronic oscillator,” Optics Express, 2017, 25(22): 27037.

[17] [17] M. Deng, X. Liu, D. Feng, Y. Tang, and T. Zhu, “Trace copper detection using in-line optical fiber Mach-Zehnder interferometer combined with an optoelectronic oscillator,” Optics Express, 2021, 29(15): 23430.

[18] [18] B. Wu, M. Wang, Y. Dong, Y. Tang, H. Mu, H. Li, et al., “Magnetic field sensor based on a dual-frequency optoelectronic oscillator using cascaded magnetostrictive alloy-fiber Bragg grating-Fabry Perot and fiber Bragg grating-Fabry Perot filters,” Optics Express, 2018, 26(21): 27628.

[19] [19] D. Feng, Y. Gao, T. Zhu, M. Deng, X. Zhang, and L. Kai, “High-precision temperature compensated magnetic field sensor based on optoelectronic oscillator,” Journal of Lightwave Technology, 2021, 39(8): 2559-2564.

[20] [20] X. Zou, X. Liu, W. Li, P. Li, W. Pan, L. Yan, et al., “Optoelectronic oscillators (OEOs) to sensing, measurement, and detection,” IEEE Journal of Quantum Electronics, 2016, 52(1): 0601116.

[21] [21] J. Yang, J. Yu, Y. Wang, L. Zhang, and E. Yang, “An optical domain combined dual-loop optoelectronic oscillator,” IEEE Photonics Technology Letters, 2007, 19(11): 807-809.

[22] [22] M. Osaci and M. Cacciola, “Study about the nanoparticle agglomeration in a magnetic nanofluid by the Langevin dynamics simulation model using an effective Verlet-type algorithm,” Microfluidics and Nanofluidics, 2019, 21(2): 19.

[23] [23] Y. Chen, S. Yang, W. Tse, H. Horng, C. Hong, and H. Yang, “Thermal effect on the field-dependent refractive index of the magnetic fluid film,” Applied Physics Letters, 2003, 82(20): 3481-3483.