【摘要】 利用相位掩模技术在光敏光纤中制作出了少模光纤布喇格光栅 ,1 .0 6 μm波长附近有2～ 3个特征峰 ,峰值约 4～ 5dB 对这种光纤光栅的特性进行了分析 ,结果表明理论与实验结果符合得较好 ,并对光纤光栅的温度特性进行了实验研究和理论分析 ,实验结果测得光纤光栅的温度敏感度为 9～ 1 0pm/℃更多还原

【Abstract】 Bragg gratings in few mode fibers have been formed,written in photosensitive fibers by the phase mask method. Bragg gratings in few mode fibers show 2～3 transmission dips in the transmission spectra at about 1.06 μm. The reflectivities are 50%～70%. The characteristics of Bragg gratings in few mode fibers are analyzed experimentally and theoretically. The temperature sensitivity of the Bragg gratings in few mode fibers is obtained experimentally about 9～10 pm/℃ as an average from 25℃ to 95℃.更多还原