Patent ID: 8078059
Filing Date: 2011-12-13
Classification: H04B,H04J

Abstract:
1. A multimode optical transmission device for transmitting a multimode optical signal modulated using an information signal to be transmitted, the multimode optical transmission device comprising: an optical transmitting circuit for modulating multimode oscillation light using the information signal, subjecting at least one oscillation-mode light beam of a plurality of oscillation-mode light beams of the modulated multimode oscillation light to a predetermined operation so as to extract predetermined oscillation-mode light from the multimode oscillation light, and outputting the result to an optical transmission channel, the plurality of oscillation-mode light beams being correlated in optical intensity and in optical phase, and each of the plurality of oscillation-mode light beams having a different wavelength; and an optical receiving circuit for receiving an optical signal transmitted through the optical transmission channel, subjecting the received optical signal to an operation reverse to the predetermined operation to recover an optical signal as it was before being subjected to the predetermined operation, and converting the recovered optical signal into an electrical signal, thereby reproducing the information signal, wherein