The photonic topological insulator, which is the electromagnetic analogy of the topological insulator in electronic systems, has attracted a great deal of attention due to its topologically protected one-way transport of edge states. In the quantum Hall effect system in which the time-reversal symmetry is broken through external magnetic fields, the topological chiral edge states and topological one-way waveguides have the best robustness due to their unique features of free backscattering and immunity against sharp bends and defects. However, the high-efficiency coupling and conversion between topological chiral edge states and classical guided waves, which are essential for feeding energies into and extracting signals from these topological waveguides, have not been well studied.