Ion implantation has played a unique role in the fabrication of optical waveguide devices.Tb3+-doped aluminum borosilicate (TDAB) glass has been considered as an important magneto-optical material.In this work,near-infrared waveguides have been manufactured by the (5.5 + 6.0) MeV C3+ ion implantation with doses of(4.0 + 8.0) × 1013 ions·cm-2 in the TDAB glass.The modes propagated in the TDAB glass waveguide were recorded by a prism-coupling system.The finite-difference beam propagation method (FD-BPM) was carried out to simulate the guiding characteristics of the TDAB glass waveguide.The TDAB glass waveguide allows the light propagation with a single-mode at 1.539 μm and can serve as a potential candidate for future waveguide isolators.