Magnetic-fluid core optical fiber

Abstract

We report the first fabrication of magnetic-fluid core optical fiber (MFCOF). Paraffin-based magnetic fluid is selected as the liquid and filled in a hollow core fiber with the core-diameter of 5 lm and the length of 20 cm. The optical properties of MFCOF were investigated by sending light into them. The wires allow multi-mode operation, and have an optical loss less than 0.6 dB/cm. In contradiction to the traditional liquid core optical fiber, the optical properties of MFCOF can be tunable under the external magnetic field, which may find applications in device physics on combined fields of magnetic fluid and nonlinear fiber optics.

Recent progress in ferrofluids research: novel applications of magnetically controllable and tunable fluids

“…Ferrouid core optical bers were reported by Zou et al 126 These have the main advantage of having tunable properties like optical loss and multi-mode operation in an applied magnetic eld, as compared to other liquid optical bers. 126 Ferrouid optical modulators use ferrouid as a cladding layer, [127][128][129][130] as depicted in Fig.…”

“…Ferrouid core optical bers were reported by Zou et al 126 These have the main advantage of having tunable properties like optical loss and multi-mode operation in an applied magnetic eld, as compared to other liquid optical bers. 126 Ferrouid optical modulators use ferrouid as a cladding layer, [127][128][129][130] as depicted in Fig. 12(a), where the magnetic eld modies the refractive index and hence the intensity of the propagating light can be attenuated through the applied magnetic eld intensity, as shown in Fig.…”

Magnetic anisotropies and cationic distribution in CoFe2O4 nanoparticles prepared by co-precipitation route: Influence of particle size and stoichiometry

“…Approaches to use magnetic nanoparticles in biomedical applications rely on the large magnetization at saturation and on the large remanent magnetization of ferromagnetic materials that are mandatory for Magnetic Resonnance Imaging (MRI) [2] while advances in anticancer treatment take the advantage on the specific loss power of magnetic nanoparticles at radiofrequencies [3]. In the field of magneto-optical devices, integrated optics [4], core optical fibers [5] or tunable beam splitter [6] incorporate magnetic nanoparticles for their tunable magneto-optical properties. For such applications, ferrites with a spinel structure MFe 2 O 4 (with M = Fe, Co, Mn, Ni, Zn…) present appealing properties [7].…”

Effect of dimerization on the field-induced birefringence in ferrofluids

“…They are also used in fiber optics including optical fiber modulators, optical filters, and fiber sensors, in which the ferrofluid is used as a fiber cladding or coating [12,13]. Recently, the fabrication of the magnetic-fluid core fiber was reported as well [14].…”