发明名称 |
OPTICAL TRANSMITTER AND CONTROL APPARATUS OF OPTICAL MODULATOR |
摘要 |
An optical transmitter includes an optical modulator to modulate light output from a light source with a drive signal, a monitor to detect an average value and an alternating-current (AC) component of output light intensity of the optical modulator, and a controller to select one of a first bias control and a second bias control in accordance with an amplitude of the drive signal. The first bias control controls a bias voltage of the drive signal based on the average value, and the second bias control controls the bias voltage of the drive signal based on the AC component. |
申请公布号 |
US2015188639(A1) |
申请公布日期 |
2015.07.02 |
申请号 |
US201414575020 |
申请日期 |
2014.12.18 |
申请人 |
FUJITSU OPTICAL COMPONENTS LIMITED |
发明人 |
AKASHI Tamotsu |
分类号 |
H04B10/564 |
主分类号 |
H04B10/564 |
代理机构 |
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代理人 |
|
主权项 |
1. An optical transmitter comprising:
an optical modulator configured to modulate light output from a light source with a drive signal to output the modulated light; a monitor configured to detect an average value and an alternating-current (AC) component of output light intensity of the optical modulator; and a controller configured to select one of a first bias control and a second bias control in accordance with an amplitude of the drive signal, the first bias control controlling a bias voltage of the drive signal based on the average value, and the second bias control controlling the bias voltage of the drive signal based on the AC component. |
地址 |
Kawasaki-shi JP |