<p>This paper focuses on optical fiber communication in real fiber optic transmission wires and studies the inhomogeneous variable-coefficient coupled Schrödinger-Hirota equation, which is derived from variable-coefficient Schrödinger-Hirota equation. The one-soliton, two-soliton, nondegenerate one-soliton as well as two-soliton solutions are obtained using the Hirota bilinear method for the first time. Some dynamical behaviors of the one-soliton, two-soliton and solitonic interactions are analyzed. During the process, one novel soliton is observed. On the basis of the soliton, some different phenomena are observed. For example, as the spacing between solitons is minimized, amplitudes can also be enhanced. This differs from the one-aspect results obtained from a single equation in previous studies. This result has theoretical guiding significance in reducing information interference and improving communication signal intensity in optical fiber transmission.</p>