INVESTIGATION OF THE CONDITIONS OF SYNTHESIS COMPOSITE OPTICAL FIBER-MAGNETIC MATERIAL WITH PRESERVED TRANSMISSION CHARACTERISTICS

摘要

In this paper a part of results obtained during the investigation of the possibility of embedding magnetic powders in the coating of optical fiber are presented. The conditions of forming composite coating of polymer-magnetic powder on fiber optic were investigated. The influence of the dispersion composition on the uniformity of composite coating was analyzed. For each investigated concentration of magnetic powders a composition of dispersion that produce the most uniform composite coating, for constant velocity and temperature of coating were established. The fiber optic tester was used for measuring and controlling the performance of modified optical fiber. Changes in the transmitted power of laser light under the magnetic field using modified optical fiber with SmCo_5 as magnetic component are negligible. These changes do not increase with the increase of SmCo_5 content in coating. Intensity of transmitted power of laser beam is more affected by applied magnetic field in the case when Ba-ferrite is used as a magnetic component in the coating of modified fiber. It is possible to use SmCo_5 as a magnetic component of magnetically detectable telecommunication optical fibers. SmCo_5 has exceptional magnetic properties that enable magnetic detection, and the effect on measured transmission properties is negligible.