公开(公告)号：US20050105917A1

公开(公告)日：2005-05-19

申请号：US10959487

申请日：2004-10-07

申请人： Hidehiko Narusawa ,  Tetsuya Kiyonaga

发明人： Hidehiko Narusawa ,  Tetsuya Kiyonaga

IPC分类号： G02F1/035 ,  G02F1/03 ,  H04B10/04

CPC分类号： H04B10/50575 ,  H04B10/58

摘要： The direct control of a change in output amplitude of the modulator driver resulting from changes in the ambient environment or by aging is difficult because deterioration is generated in the drive waveform under the condition that the drive signal of the radio frequency is output from the modulator driver of the Mach-Zehnder modulator. A low frequency element included in the modulator output is monitored by superimposing the low frequency signals under the in-phase condition to two envelopes corresponding to the H input and L input of the drive signal. Amplitude of the drive signal outputted from the modulator driver can be adjusted without deterioration of the drive waveform.

摘要翻译： 由于周围环境的变化或老化引起的调制器驱动器的输出振幅的变化的直接控制是困难的，因为在从调制器驱动器输出射频的驱动信号的条件下在驱动波形中产生劣化 的马赫 - 曾德调制器。 通过将同相状态下的低频信号叠加到与驱动信号的H输入和L输入对应的两个信封来监视包括在调制器输出中的低频元件。 可以调节从调制器驱动器输出的驱动信号的幅度，而不会降低驱动波形。