MESSAGE TRANSMISSION SYSTEM WITH FREQUENCY DIVIDING OPTICAL COMPONENTS FOR PARALLEL PROCESSING OF OPTICAL PULSES

摘要

The invention relates to a message transmission system with frequency dividi ng optical components. According to the invention, light pulses with different frequencies are coupled out of an optical fibre by means of fibre grating and/or photoionic crystals and imaged by focusing elements outside of the optical fibre. The fibre grating for different frequencies can be arranged in a single period or in different successive periods. The photoionic crystals can be used at the end of the optical fibre or can be etched into a channel or pit in a glass fibre. Additional delay elements ensure that light pulses with different frequencie s are imaged at the same time in a predetermined chosen time ratio, in accordance with a parallel reprocessing stage.