Diametrically Driven Self-Accelerating Pulses in a Photonic Crystal Fiber

We predict the existence of a new class of self-accelerating, exponentially localized pulses consisting of two interacting frequency components propagating at opposite group velocity dispersion. Compared to previous approaches no external force is required and accelerations of both signs can be realized. This seemingly paradoxical behavior resembles an all optical wave realization of a classical diametric drive, where a continuously propulsive effect is achieved by a combination of two fields having effective masses of opposite sign.