可补偿偏置漂移的扭转光纤电流传感器

针对扭转光纤电流传感器由于环境因素（如温度,压力,振动）变化使光纤中传输光偏振态改变,从而导致传感器输出与漂移问题,提出了一种新的信号处理方法进行克服,这一方法适用于交变电流的检测,实验中通过旋转输入线偏振光偏振方向的方法检验了所提垢有效性,证明这种补偿方法对传感器置相位的任意偏移均适用。     

Novel discretely tunable narrow linewidth fiber laser with uniform wavelength spacing

A novel configuration of the tunable fiber laser with uniform wavelength spacing in dense wavelength division multiplexing (DWDM) application is proposed.The ring type tunable fiber laser consists of an all-fiber comb filter which determines the wavelength spacing,and a piece of adjustable fiber grating to select the discrete lasing wavelength for DWDM application.The proposed all-fiber ring type tunable laser has potential application in the DWDM and other optical systems due to its advantages such as narrow linewidth,easy tuning,uniform wavelength interval,etc..