Characterization of arc-shaped side-polished fiber

摘要

In this paper, a characterization of a home-made arc-shaped side-polished fiber (SPF) is demonstrated. The arc-shaped SPF is made possible by a polisher design that polishes suspended SMF-28 fibers from the bottom side using motor wheel technique. Characterization of the fabricated SPFs are made by applying at different V-bending conditions governed by delta s values to gauge the SPF power loss and stability towards bending. As delta s increases, the spectral power shows dropping in a linear manner with slopes of −0.045, −0.036 and −0.008 dB/µm are attained for different SPF insertion losses of 1.5, 5.27 and 12.39 dB respectively. In addition, the same SPFs have shown to be able to recover power up to a level when 200 µm and back-returned of 0 µm displacements were made. In addition, heat test on an SPF with insertion loss of 11.4 dB has proved that there is no significant spectral change is observed at different temperature settings up to 60 °C. This shows that the fabricated SPF is highly immune to temperature noise and even when Graphene oxide (GO) is deposited on a SPF with insertion loss of 1.8 dB. The SPF with the deposited GO also shows similar result at different V-bending conditions having a slope of −0.0195 µW/µm with linearity of 0.9984 are obtained.