公开(公告)号：US07006279B2

公开(公告)日：2006-02-28

申请号：US10076989

申请日：2002-02-15

申请人： Yueai Liu ,  Xiangjun Zhao ,  Xinjie Huang ,  Tizhi Huang

发明人： Yueai Liu ,  Xiangjun Zhao ,  Xinjie Huang ,  Tizhi Huang

IPC分类号： H01S3/00 ,  G02B27/28

CPC分类号： H04B10/2941 ,  H04B10/0731

摘要： Devices and methods for equalizing the gain of an optical amplifier are described. For devices including harmonic filters that are controllable by amplitude control voltages and phase control voltages, techniques for controlling the amplitude control voltages and phase control voltages are presented. Additionally, device architectures are described by which an incoming optical signal is equalized to compensate for uneven gain in prior amplifiers or other optical components, and in which the incoming optical signal is received at a beam displacer and separated into orthogonal component beams, wherein the beams are counter-propagated through the equalizer in opposite directions through the same spatial path so as to minimize or eliminate the effects spatially dependent imperfections in the equalizer.