公开(公告)号：WO2004072714A2

公开(公告)日：2004-08-26

申请号：PCT/US2004/003737

申请日：2004-02-09

Applicant: KODEOS COMMUNICATIONS, INC. ,  HAREL, Roey ,  PAPPAS, Dean ,  SHTENGEL, Gleb ,  STARK, Jason, B. ,  LEROY, Donald. V.

Inventor： HAREL, Roey ,  PAPPAS, Dean ,  SHTENGEL, Gleb ,  STARK, Jason, B. ,  LEROY, Donald. V.

IPC: G02F

CPC classification number: G02F1/0123 ,  G02F2201/126

Abstract: A method and apparatus is provided for controlling the bias point of a Mach-Zehnder modulator. The method begins by applying a dither signal to a DC bias that is applied to a Mach-Zehnder modulator. A component of an optical output signal provided by the Mach-Zehnder modulator that is synchronous with the dither signal is detected. The dither signal is adjusted to maintain the detected component of the optical output signal at a substantially constant value.

Abstract translation: 提供了一种用于控制马赫 - 曾德尔调制器的偏置点的方法和装置。 该方法开始于施加到施加到马赫 - 曾德尔调制器的DC偏压上的抖动信号。 检测与抖动信号同步的由Mach-Zehnder调制器提供的光输出信号的分量。 调整抖动信号以将光输出信号的检测分量保持在基本恒定的值。

公开(公告)号：EP1590705A2

公开(公告)日：2005-11-02

申请号：EP04709447.9

申请日：2004-02-09

Applicant: Kodeos Communications

Inventor： HAREL, Roey ,  PAPPAS, Dean ,  SHTENGEL, Gleb ,  STARK, Jason, B. ,  LEROY, Donald. V.

IPC: G02F1/00

CPC classification number: G02F1/0123 ,  G02F2201/126

Abstract: A method and apparatus is provided for controlling the bias point of a Mach-Zehnder modulator. The method begins by applying a dither signal to a DC bias that is applied to a Mach-Zehnder modulator. A component of an optical output signal provided by the Mach-Zehnder modulator that is synchronous with the dither signal is detected. The dither signal is adjusted to maintain the detected component of the optical output signal at a substantially constant value.