Influence of intra-cavity loss on transmission characteristics of fiber Bragg grating Fabry–Perot cavity
Influence of intra-cavity loss on transmission characteristics of fiber Bragg grating Fabry–Perot cavity
复制标题
腔内损耗对光纤布拉格光栅法布里-珀罗腔传输特性的影响
DOI：
10.1088/1674-1056/27/2/024207
复制
发表时间：
2018
影响因子：
1.7
通讯作者：
Wei Fang
中科院分区：
文献类型：
--
作者：
Wang Di;Ding Meng;Pi Haoyang;Li Xuan;Yang Fei;Ye Qing;Cai Haiwen;Wei Fang
提出了考虑光纤光栅损耗和腔内光纤损耗的光纤光栅（FBG- fp）传输谱的理论模型。实验刻录了几种类型的FBG-FPs，并测量了它们的光谱。结果证实，弱腔内损耗在共振透射峰处增强，即透射峰损耗明显大于其他波长。对于多共振峰的FBG-FPs，共振峰波长越接近Bragg波长，共振透射峰损失效应越显著。实测光谱与理论模型拟合良好。拟合的决定系数接近1，证明了理论模型的有效性。该研究可用于在没有参考光的情况下更准确地测量光纤光栅损耗。它可以在FBG和FBG- fp写入过程优化和应用参数优化中发挥重要作用。
A theoretical model of the fiber Bragg grating Fabry–Perot (FBG-FP) transmission spectrum considering loss of FBG and intra-cavity fiber is presented. Several types of FBG-FPs are inscribed experimentally, and their spectra are measured. The results confirm that weak intra-cavity loss is enhanced at the resonance transmission peak, that is, loss of transmission peaks is observably larger than other wavelengths. For FBG-FPs with multi resonance peaks, when the resonance peak wavelength is closer to the Bragg wavelength, the more significant loss effect of resonance transmission peak is exhibited. The measured spectra are fitted with the presented theoretical model. The fitted coefficient of determinations are near 1, which proves the validity of the theoretical model. This study can be applied to measure FBG loss more accurately, without a reference light. It can play an important role in FBG and FBG-FP writing process optimization and application parameter optimization.