sampled fibre grating 取样光纤光栅
fibre grating method 光纤光栅法
fibre grating sensor 光纤光栅传感器
matched fibre grating 匹配光纤光栅
long-period fibre grating 长周期光纤光栅
phase-shifted long-period fibre grating 相移长周期光纤光栅
fibre bragg grating 光纤bragg光栅
optical fibre bragg grating 光纤bragg光栅
Optical fibre grating utilize photosensitive characteristic to form the space phase grating in the core, it can change the transmission route of the light wave in the light-transmitting fibre.
光纤光栅是利用光纤材料的光敏性，在纤芯内形成空间相位光栅，它可以改变光波在光导纤维中的传输路径。
The strain sensitivity characteristic of long-period fibre grating (LPFG) was studied by coupled-mode theory and the strain sensitivity analytic equation of the resonant wavelength was deduced.
对长周期光纤光栅传输谱谐振波长的应变特性用耦合模理论进行研究，推导出谐振波长应变灵敏度的解析表达式。
Condition for single mode operation of DBR fibre laser is given based on rate equations theory. We apply it to the design by analyzing characteristics of grating reflectivity and some approximation.
基于速率方程理论，给出d BR光纤激光器单模运转的条件，并通过对光栅反射特性的分析及一些近似处理，进行了具体设计。
应用推荐