论文部分内容阅读
单模光纤干涉仪用在水听器和其他类型的传感器中时,要在因温度波动和其他扰动而使干涉仪两臂间产生差分相位漂移的情况下获得最大灵敏度和线性度,必须加反馈稳定系统.本文阐述了一种简单有效的电子电路来稳定干涉仪.反馈环路带宽为5kHz,这一带宽足以包括信息信号以及附加其上的漂移校正信号,用一个高通滤波器把漂移校正信号从信息信号中滤去.
When used in hydrophone and other types of sensors, single mode optical fiber interferometers achieve maximum sensitivity and linearity with differential phase shift between the arms of the interferometer due to temperature fluctuations and other perturbations, plus feedback Stable system.This article describes a simple and effective electronic circuit to stabilize the interferometer.The feedback loop bandwidth of 5kHz, this bandwidth is sufficient to include the information signal and the drift correction signal attached thereto, a high-pass filter to drift correction signal Filtered from the information signal.