The importance of fiber Bragg gratings (FBGs) is rapidly increasing due to their wide variety of applications. We present herein a full analytical study related to a simple optimization of the performance of FBGs for sensing applications and erbium-doped fiber amplifier (EDFA) gain flattening. In sensing applications, such as strain and temperature change detection, the most important issues are the sensitivity of the sensing process and the maximum value that can be sensed before saturation. Here, we optimized the FBG parameters to obtain the best sensing performance. EDFA gain flattening is performed using one long-period fiber grating and one uniform tilted fiber Bragg grating to compensate the narrow and wide peaks in the EDFA gain variation with input signal wavelength for an Al/P-silica EDFA, respectively. Two different input signal powers are used, applying our flattening technique in each case. The best peak-to-peak value reached is 0.87 dB, corresponding to a flattening efficiency of 81.17%. The validity of this flattening technique is also evaluated through an intensive comparison with other types of EDFAs, where the flattening efficiency is illustrated and compared in each case. We thus optimize FBG performance in a new and simple way for application in sensing and gain flattening applications.

光纤布拉格光栅（FBG）的重要性由于其广泛的应用而迅速增加。我们在本文中提供了一个完整的分析研究，涉及用于传感应用和掺-光纤放大器（EDFA）增益平坦化的FBG性能的简单优化。在诸如应变和温度变化检测之类的传感应用中，最重要的问题是传感过程的灵敏度以及在饱和之前可以传感的最大值。在这里，我们优化了FBG参数以获得最佳的传感性能。使用一个长周期光纤光栅和一个均匀倾斜的光纤布拉格光栅进行EDFA增益平坦化，以分别补偿Al / P-二氧化硅EDFA的EDFA增益变化的窄峰和宽峰。使用两种不同的输入信号功率，在每种情况下均采用我们的展平技术。达到的最佳峰峰值为0.87 dB，对应于81.17％的平坦化效率。还通过与其他类型的EDFA进行深入比较来评估这种展平技术的有效性，在每种情况下均说明并比较了展平效率。因此，我们以新颖，简单的方式优化了FBG性能，以用于传感和增益平坦化应用。