光学学报, 2016, 36 (12): 1206004, 网络出版: 2016-12-14
基于自适应模拟退火算法的光学模式转换技术
Mode Conversion Technology Based on Adaptive Simulated Annealing Algorithm
光通信 模分复用 模式转换 空间光调制器 模拟退火 optical communications mode division multiplexing mode conversion spatial light modulator simulated annealing
摘要
模式转换技术是光学模分复用系统的关键技术之一, 用于实现任意模式之间的相互转换, 是模分复用系统实现信道接入、交换及分插复用的基础。采用纯相位空间光调制的方式实现光学模式转换, 通过改变加载于空间光调制器上的相位全息图, 控制不同模式的产生。对相位全息图产生算法进行了改进, 采用自适应的模拟退火算法, 结合图形处理器并行计算, 与传统的模拟退火算法相比, 运算效率提升7倍以上。并搭建了模式转换系统实验平台, 得到的实验结果验证了算法的有效性。
Abstract
The mode conversion technology is one of the key technologies of the mode division multiplexing, which can realize the transformation between arbitrary optical modes. Moreover, it is the basis for the realization of channel access, switching and multiplexing. A spatial light modulator is used to achieve different mode distributions. The algorithm to generating phase hologram for mode conversion is improved based on spatial light modulator. By using the adaptive simulated annealing algorithm with graphics processing unit parallel computing, a more than seven fold increase in the computational efficiency of the simulated anealing algorithm is obtained. Finally, a mode conversion platform is established, and the experiment is carried out to prove the effectiveness of the proposed method.
李路遥, 闫连山, 叶佳, 郑春雨, 潘炜, 罗斌. 基于自适应模拟退火算法的光学模式转换技术[J]. 光学学报, 2016, 36(12): 1206004. Li Luyao, Yan Lianshan, Ye Jia, Zheng Chunyu, Pan Wei, Luo Bin. Mode Conversion Technology Based on Adaptive Simulated Annealing Algorithm[J]. Acta Optica Sinica, 2016, 36(12): 1206004.