电力电缆光纤传感监测系统多波长光源设计

摘要

A design of multiwavelength light source for the fiber sensing monitoring system for power cable is introduced. Based on the division of broad spectrum of Super Light Emitted Diode (SLED) modulated by pulse signal, using a Fabry-Perot filter as frequency selection device and using a bandpass filter to choose the wavelength range, the stable multiwavelength light with a frequency space of 200GHz is achieved) and the power of each wavelength is less than 0 dBm. Because of its simple structure, stable performance, high cost-effectiveness, the design is useful to the large-scale application of fiber sensing technique in the field of power cable status monitoring.%介绍了一种适用于电力电缆光纤传感监测系统的多波长光源设计方案.方案采用光谱切割方法,利用受脉冲信号调制的超辐射二极管( SLED)作宽谱光源,选用法布里-珀罗滤波器(FP标准具)作波长选择器件,并采用带通滤波器选择波长范围,可实现波长间隔为200 GHz,单波长输出功率不小于0 dBm的稳定多波长输出.方案结构简单,性能稳定,性价比高,为光纤传感技术在电力电缆状态监测中的大规模应用提供了有力条件.