论文部分内容阅读
研究了长周期光纤光栅谐振波长与光纤参数及光栅周期的变化关系 ,发现高阶包层模与低阶包层模具有完全不同的特点 ,在各种参数变化时两者的谐振波长向相反的方向移动。通过实际制作周期分别为 10 0 μm和 4 0 0 μm的光栅证实了这种差别。得到了一些有益于长周期光栅设计和制作的结论。
The relationship between the resonant wavelength of long period fiber grating and fiber parameters and grating period has been studied. It is found that the high order cladding mode and the low order cladding mode have completely different characteristics. When the parameters change, the resonant wavelengths of the two are opposite Move in the direction. This difference is confirmed by the fact that the actual fabrication cycles are 10 0 μm and 400 μm respectively. Some conclusions have been obtained for the design and fabrication of long-period gratings.