| 摘要 |
PROBLEM TO BE SOLVED: To provide an optical spatial transmission equipment which can transmit an optical signal far away by providing a high optical signal output by loading deep modulation through an electric to optic modulator. SOLUTION: This optical spatial transmission equipment passes the output signal of a main amplifier 5 through a distributor 6 and a delay line 7 at a transmitter, converts this signal to an optical signal through an electric to optical converter 14, converts the output signal of an error amplifier 12 to an optical signal through an electric to optic converter 15 respectively, transmits both the optical signals from the transmitter to the same light receiving part of the optic to electric converter at a receiver, synthesizes these signal spatially and cancels the intermodulation distortion component. |
