| 摘要 |
According to this method, each channel is comprised of light rays propagating inside the fiber (10) by total successive reflections at the interface core-sheath, said rays being grouped as a function of their angle with respect to the axis of the fiber (11), so as to be located, for each channel, at any point (19) of the fiber, between two cones having as a common apex said point and of revolution about a common axis (18) parallel to the axis (11) of the fiber and defining the angular opening fraction affected to each channel. The opening fractions affected to all channels are at the most juxtaposed with respect to each other. The device for implementing such method comprises, in addition to the fiber, at the inlet of the latter, injection means for injecting light into each channel and, at the outlet, reception means, those means being specific to the opening fraction of said channel. Application to transmissions by optical channel. |
