Transverse Load and Torsion Characteristics of Total Internal Reflection Photonic Crystal Fiber
全内反射型光子晶体光纤横向负荷及扭曲特性研究

Utilizing the exact interferential characteristic of M-Z interferometer, the transverse load characteristic and torsion characteristic of Photonic Crystal Fiber (PCF) were generally studied by experiments. The experiment results show that in a definite wavelength, the effective refracting index of PCF presents a regular movement with the change of the transverse load. The phase of interferential stripes made by the M-Z interferometer will make an approximately line curve with the change of the load that put on the interferential arm, and the value of the interferential stripes presents a approximately sine curve movement; the phase of interferential stripes make a approximately line curve with the change of torsion angle of the interferential arm. The experiments results are explained by using the equivalent-index model.