Properties of strong anisotropic a-axis single-crystal fiber with an applied electric field

The effect of an applied electric field on the properties of strongly anisotropic a-axis single-crystal fiber is studied theoretically. We solve the electromagnetic field equations for strongly anisotropic a-axis single-crystal fiber and numerically analyze the mode characteristics of the fiber that conducts only the zeroth-order elementary mode. We discuss the effects that an applied electric field has on the refractive index anisotropy and the mode characteristics of the fiber that conducts only the zeroth-order elementary mode.