| 主权项 |
1. An optical signal control device comprising:
an optical signal control unit that outputs output light generated by changing an amplitude and a phase of input carrier light; and a drive circuit that supplies a data signal for controlling a change in the amplitude and the phase of the carrier light to the optical signal control unit, wherein the optical signal control unit includes:
m (m is an integer of one or more) number of optical waveguides arranged in parallel between light input and light output, for letting the carrier light propagate therethrough; and(m×n) number of interaction regions, n (n is an integer of one or more) number of interaction regions formed on each of the m number of optical waveguides, for changing the amplitude and the phase of the carrier light propagating through each of the m number of optical waveguides in accordance with the data signal, the drive circuit includes:
(m×n) number of phase control units that receive the data signal from outside, control the phase of the received data signal and output the data signal to each of the (m×n) number of interaction regions, each of the (m×n) number of phase control units outputs the data signal so that timing when the carrier light propagating through the optical signal control unit arrives at the interaction region to output the data signal and timing when the data signal arrives at the interaction region are synchronized, and one of m and n is two or more, wherein each of the (m×n) number of phase control units outputs the data signal at later timing as the interaction region to output the data signal is closer to the drive circuit. |
