| 摘要 |
The present invention provides an optical transmitter, an optical transmission/reception system, and a drive circuit which are capable of adjusting the linearity of output light. An optical modulator (11) includes optical transmission paths (111, 112) in which phase modulation areas (PM11_1 to PM11_4, PM12_1 to PM12_4) are formed and through which optical signals propagate. A decoder (12) decodes an input digital signal (D[3:0]) and outputs signals (D1 to D4) corresponding to decoded values. On the basis of said signals (D1 to D4), a drive circuit (13) outputs drive signals having three or more tones, including signals having different numbers of tones, to each of said phase modulation areas (PM11_1 to PM11_4, PM12_1 to PM12_4). A control circuit (14) designates the correlation between the decoded values and the respective drive signals by controlling the drive circuit (13). |
