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Title: Method for controlling photomodulator bias voltage and relevant device
Other Titles: 一种控制光调制器的偏置电压的方法及相关装置
Authors: Xu, X 
Lu, C 
Yang, Y 
Issue Date: 4-Jul-2012
Source: 中国专利 ZL 200810029747.4 How to cite?
Abstract: The invention discloses a method for controlling photomodulator bias voltage and a relevant device. The method comprises the following steps: acquiring an output signal of a photomodulator; acquiring the relation information of the output signal and a noise signal in the output signal; analyzing the relation information of the output signal and the noise signal to acquire the control information of phase-shift bias voltage; and according to the control information, acquiring current phase-shift bias voltage and loading the current phase-shift bias voltage on the photomodulator. The method forcontrolling photomodulator bias voltage in the embodiment of the invention has the function of automatic feedback adjustment and can adjust the bias voltage of a pi/2 phase-shift unit of the photomodulator, thereby increasing the stability of the output signal of the photomodulator.
Rights: Assignee: 华为技术有限公司
Assignee: 香港理工大学
Appears in Collections:Patent

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