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Soliton control offers novel conceptual opportunities for all-optical shaping, switching and routing of optical signals encoded in soliton formats. In this paper, V-shaped dark solitons propagation in inhomogeneous optical fibers are investigated to carry out soliton control. Analytic dark soliton solutions for the variable coefficient nonlinear Schrödinger equation are obtained with the Hirota method. The group velocity dispersion coefficient of inhomogeneous optical fibers is chosen to be the tanh function, and the influences of corresponding parameters are analyzed. Results might be of potential applications in the design of all optical switches and pulse signal converters in ultra-fast optics.

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