光纤宏弯损耗性能影响因素的仿真研究

发布时间：2018-12-08 11:57

【摘要】：为了优选宏弯损耗敏感光纤,研发基于光纤宏弯损耗的光学器件,对影响单模光纤宏弯损耗的主要因素进行了理论分析和仿真研究。基于D.Marcuse和H.Renner提出的光纤宏弯损耗理论模型,选取SMF28、SMF28e和1060XP三种单模光纤,仿真研究了涂覆层、弯曲半径、光源波长、MAC值和弯曲圈数对光纤宏弯损耗性能的影响。结果表明:无涂覆层、带吸收层的单模光纤宏弯损耗随着波长增长而增大、随着弯曲半径增大而减小、随着圈数增多而增大、随着MAC值增大而增大;光纤的丙烯酸酯类涂覆层会引起宏弯损耗随弯曲半径变化发生振荡;MAC值是衡量光纤宏弯损耗敏感性能的指标,也是优选宏弯损耗敏感光纤的重要参数。因此,光纤宏弯损耗器件适合选用MAC值大的光纤,去除其涂覆层,增加吸收层,然后选择较长的波长、较小的弯曲半径和适当多的弯曲圈数。
[Abstract]:In order to select the optical fiber sensitive to macro bending loss, an optical device based on optical fiber macro bending loss is developed. The main factors affecting the macro bending loss of single mode fiber are analyzed theoretically and simulated. Based on the theoretical model of optical fiber macro bending loss proposed by D.Marcuse and H.Renner, the effects of coating layer, bending radius, light source wavelength, MAC value and number of bending cycles on the properties of optical fiber macro bending loss are simulated by selecting SMF28,SMF28e and 1060XP single mode fiber. The results show that the macrobending loss of single-mode fiber with absorption layer increases with the increase of wavelength, decreases with the increase of bending radius, increases with the number of cycles, and increases with the increase of MAC value. Acrylate coating of optical fiber will cause the oscillation of macro bending loss with the change of bending radius, and MAC value is the index to evaluate the sensitivity of optical fiber to macro bending loss, and it is also an important parameter to select macro bending loss sensitive fiber. Therefore, the optical fiber macrobending loss device is suitable to choose the fiber with high MAC value, remove the coating layer, increase the absorption layer, and then select the longer wavelength, smaller bending radius and more appropriate number of bending cycles.
【作者单位】：南昌大学机器人与焊接自动化重点实验室;
【基金】：国家自然科学基金(No.61067003) 江西省自然科学基金项目(No.20132BAB206024) 江西省教育厅科技项目(No.GJJ13064) 高等学校博士学科点博导基金(No.20123601110011) 高等学校博士点新教师基金(No.20103601120005)资助项目
【分类号】：TN818;TN253

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