OCDMA SYSTEM OF FSK DATA FORMAT

摘要

PROBLEM TO BE SOLVED: To provide an OCDMA (optical code division multiple access) system which operates based on a pulse light, is hardly influenced by MAI and beat noise and is excellent in security.

SOLUTION: The problem is solved by a coding device (1) for the OCDMA system having an FSK (phase shift keying) modulator (2) for superimposing a frequency FSK modulation signal on a pulse signal from a pulse light source; a data control section (3) for controlling the data to be superimposed on the FSK modulator; and an OCDMA coding device (4) for multiplexing an output signal from the FSK modulator. The OCDMA system includes the coding device.

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