基于射频技术的声光可调滤波器稳频优化软件设计  

Frequency Stabilization Optimization of Acousto Optic Tunable Filter Based on RF Technology

作　　者：陈姣 陈芳 Chen Jiao;Chen Fang(College of Computer Science and Engineering,Hunan Information University,Changsha 410151,China)

机构地区：[1]湖南信息学院计算机科学与工程学院,长沙410151

出　　处：《科技通报》2023年第4期23-26,共4页Bulletin of Science and Technology

摘　　要：声光可调控制器运行时,受到环境温度变化和自身声表面波吸收的影响,器件温度出现变化,使滤波中心的波长产生漂移。为此,基于射频技术,本文提出一种声光可调滤波器稳频优化方法。声光可调滤波器通过改变射频信号数目以及加载频率,高速、随机以及连续地选取滤波波长,优化控制回路以及频率标准FP部分参量,即可得到声光可调滤波器极限线宽以及控制FP频率,完成稳频优化。实验证明:声光可调滤波器温度的特性曲线可表示射频技术应用效果,所提方法能够成功地将滤波中心的波长漂移控制在0.07 nm,稳频优化效果良好。When the acousto-optic adjustable controller is running,the device temperature changes due to the change of ambient temperature and its own saw absorption,which makes the wavelength of the filter center drift.Therefore,based on RF technology,a frequency stabilization optimization method of acoustooptic adjustable filter is proposed.By changing the number of RF signals and loading frequency,selecting the filter wavelength at high speed,randomly and continuously,and optimizing some parameters of the control loop and frequency standard FP,the limit linewidth of the acoustooptic tunable filter and the control FP frequency can be obtained to complete the frequency stabilization optimization.Experiments show that the temperature characteristic curve of acoustooptic tunable filter can represent the application effect of RF technology.The proposed method can successfully control the wavelength drift of the filter center at 0.07 nm,and the frequency stabilization and optimization effect is good.

关 键 词：射频技术 声光可调滤波器 稳频优化 系统噪声 控制回路 

分 类 号：TN926[电子电信—通信与信息系统]