公开(公告)号：US20160147129A1

公开(公告)日：2016-05-26

申请号：US14950198

申请日：2015-11-24

Applicant: Fujitsu Optical Components Limited

Inventor： Hiroshi Nishimoto ,  AKIHIRO TOYA

IPC: G02F1/225 ,  G02F1/01

CPC classification number: G02F1/2255 ,  G02F1/0123 ,  G02F1/2257 ,  G02F2001/212 ,  H04B10/50575

Abstract: An optical communication device has a pair of Mach-Zehnder optical modulators; a voltage monitor configured to monitor a voltage component acquired by optical-to-electric conversion of combined light output from the Mach-Zehnder optical modulators; a power monitor configured to monitor a power component acquired by square law detection of the optical-to-electric converted combined light from the Mach-Zehnder optical modulators; a first controller configured to control a substrate bias voltage or a driving amplitude applied to one of two waveguides of each of the Mach-Zehnder optical modulators based upon an output of the power monitor, and a second controller configured to control the substrate bias voltage or the driving amplitude applied to the other of the two waveguides of each of the Mach-Zehnder optical modulator based upon an output of the voltage monitor.

Abstract translation: 光通信装置具有一对马赫 - 策德尔光学调制器; 电压监视器，被配置为监视从马赫 - 策德尔光调制器输出的组合光的光电转换获得的电压分量; 功率监视器，被配置为监视通过来自马赫 - 策德尔光学调制器的光电转换组合光的平方律检测获得的功率分量; 第一控制器，被配置为基于功率监视器的输出来控制施加到每个马赫 - 曾德尔光学调制器的两个波导中的一个波导的衬底偏置电压或驱动振幅;以及第二控制器，被配置为控制衬底偏置电压或 基于电压监视器的输出，驱动振幅施加到每个Mach-Zehnder光学调制器的两个波导中的另一个的另一个。