公开(公告)号：US08098998B2

公开(公告)日：2012-01-17

申请号：US12108089

申请日：2008-04-23

申请人： Shigehiro Takashima ,  Takayoshi Fukui ,  Yoshikuni Uchida ,  Kazuyoshi Yamaki ,  Youichi Honzawa

发明人： Shigehiro Takashima ,  Takayoshi Fukui ,  Yoshikuni Uchida ,  Kazuyoshi Yamaki ,  Youichi Honzawa

IPC分类号： H04B10/04

CPC分类号： H04B10/505 ,  G02F1/0123 ,  G02F1/0327 ,  G02F1/225 ,  G02F2001/212 ,  G02F2202/20 ,  H04B10/50572 ,  H04B10/5167

摘要： A technology to automatically control the biasing of an optical duobinary transmitter using a single-drive LN-MZ modulator is provided. A low-frequency signal is amplitude modulated onto a voltage signal input into a Mach-Zehnder optical modulator 22. The optical output from the optical modulator 22 is detected by an optical detection subsystem 30. In a bias control subsystem 40, the low-frequency signal component amplitude modulated onto the electrical signal is detected from the optical output, and a DC bias voltage applied to the optical modulator is controlled such that the low-frequency signal component is either minimized or maximized.

摘要翻译： 提供了一种使用单驱动LN-MZ调制器自动控制光双向发射器的偏置的技术。 低频信号被调制到输入到马赫 - 策德尔光调制器22的电压信号上。光调制器22的光输出由光检测子系统30检测。在偏置控制子系统40中，低频信号 从光输出检测调制到电信号上的信号分量幅度，并且控制施加到光调制器的DC偏置电压，使得低频信号分量被最小化或最大化。

公开(公告)号：US20090060528A1

公开(公告)日：2009-03-05

申请号：US12108089

申请日：2008-04-23

申请人： Shigehiro TAKASHIMA ,  Takayoshi Fukui ,  Yoshikuni Uchida ,  Kazuyoshi Yamaki ,  Youichi Honzawa

发明人： Shigehiro TAKASHIMA ,  Takayoshi Fukui ,  Yoshikuni Uchida ,  Kazuyoshi Yamaki ,  Youichi Honzawa

IPC分类号： H04B10/04

CPC分类号： H04B10/505 ,  G02F1/0123 ,  G02F1/0327 ,  G02F1/225 ,  G02F2001/212 ,  G02F2202/20 ,  H04B10/50572 ,  H04B10/5167

摘要： A technology to automatically control the biasing of an optical duobinary transmitter using a single-drive LN-MZ modulator is provided. A low-frequency signal is amplitude modulated onto a voltage signal input into a Mach-Zehnder optical modulator 22. The optical output from the optical modulator 22 is detected by an optical detection subsystem 30. In a bias control subsystem 40, the low-frequency signal component amplitude modulated onto the electrical signal is detected from the optical output, and a DC bias voltage applied to the optical modulator is controlled such that the low-frequency signal component is either minimized or maximized.

摘要翻译： 提供了一种使用单驱动LN-MZ调制器自动控制光双向发射器的偏置的技术。 低频信号被调制到输入到马赫 - 策德尔光调制器22的电压信号上。光调制器22的光输出由光检测子系统30检测。在偏置控制子系统40中，低频信号 从光输出检测调制到电信号上的信号分量幅度，并且控制施加到光调制器的DC偏置电压，使得低频信号分量被最小化或最大化。