应用光学, 2005, 26 (6): 32, 网络出版: 2006-06-12   

后处理对离子交换磷酸盐玻璃平面光波导的影响

Effect of post treatment on planar optical waveguide of ion-exchanged phosphate glass
作者单位
1 中国科学院,上海光学精密机械研究所,上海,201800
2 中国计量学院,信息工程学院,浙江,杭州,310018
摘要
研究了退火和二次离子交换对Er3+/Yb3+共掺的磷酸盐玻璃平面光波导传输特性的影响.在退火过程中,由于热效应和波导层Ag+离子的浓度差使得Ag+离子重新分布;随着退火时间的延长和温度的升高,光波导模式数目逐渐增加,波导层深度加深,且波导表面折射率与玻璃基质折射率差减小,退火扩散深度与退火时间的平方根成正比.电子探针结果显示在二次离子交换后形成了掩埋式的光波导,Ag+离子浓度接近二次方分布,而掩埋式的光波导有助于降低光波导的传输损耗.
Abstract
The effect of post-processing(annealing and secondary ion exchange process) on the transmission characteristics of planar optical waveguide of a new Er3+/Yb3+codoped phosphate glass was investigated.Because of the redistribution of Ag+ ions under the annealing and difference of Ag+ ion concentration between glass waveguide surface and substrate,it is found that with the prolonging of annealing time and increasing of annealing temperature,the quantity of optical waveguide modes and the depth of waveguide are increased,and the difference of refractive index between surface and substrate are decreased.The annealing diffusion depth is in direct proportion to the square root of annealing time.The result of microprobe analysis indicates that buried optical waveguide was formed after the secondary ion exchange process,the profile was close to quadratic distribution and the buried waveguide contributes to the decrease of transmission loss of the optical waveguide.

赵士龙, 陈宝玉, 胡俊江, 胡丽丽. 后处理对离子交换磷酸盐玻璃平面光波导的影响[J]. 应用光学, 2005, 26(6): 32. 赵士龙, 陈宝玉, 胡俊江, 胡丽丽. Effect of post treatment on planar optical waveguide of ion-exchanged phosphate glass[J]. Journal of Applied Optics, 2005, 26(6): 32.

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