提出了一种基于扭转高双折射光纤实现光纤光栅波长解调的新型解调系统，对高双折射光纤光栅扭转特性进行了详细的理论推导，给出了数学表达式。
A novel FBG wavelength demodulation system using twisted high birefringence fiber was presented . The characteristic of twisted high birefringence fiber was investigated in theory , and math expressions were given .
高双