基于遗传算法的光波导-光纤自动调芯系统的研究

The Study of Fiber-waveguide Automatic Alignment System Based on Genetic Algorithm

开发了一种新的自动调芯方法,在光纤-波导-光纤的自动对接中导入了遗传算法原理。数值仿真表明该方法达到了小于0.0001dB的插入损耗。完成了调芯系统样机,单模光纤-单模波导-单模光纤的自动对接实验显示,在1310nm和1550nm波长上,光纤-波导端面耦合损耗平均值分别为0.134dB和0.109dB,标准误差分别为0.009dB和0.012dB,调芯时间累计不超过8m in。

A new auto-aligning method is designed. Theory of genetic algorithm is introduced into the fiberwaveguide-fiber auto-aligning. Computer numeric simulation results show the method holds fast convergence speed and the insertion losses are less than 0. 0001dB. The auto-aligning system model is completed. When it comes to the experiment of fiber （single mode）-SiO2 waveguide （single mode）-fiber （single mode）,the average end-coupling losses are 0. 134dB and 0. 109dB,and the standard deviations are 0.009dB and 0. 012dB, at the wavelength 13 and 1550nm,respectively. The whole process is accomplished within 8 minutes.