鱼志健;薛文祥;赵文宇;李孝峰;陈江;阮军;杜志静;张首刚;

• 1:中国科学院国家授时中心
• 2:中国科学院时间频率基准重点实验室
• 3:中国科学院大学

摘要(Abstract)：

针对传统手动稳频需要有人值守的弊端,基于饱和吸收谐波稳频的原理,设计了一套可实现对分布反馈式(distributed feedback,DFB)半导体激光器频率长期锁定的自动稳频系统。整套系统以STM32微控制器为核心,在此基础上进行自动稳频软件程序设计,具有体积小和抗干扰强的特点。经实验测试,该系统能够实现自动稳频,并在失锁后快速自动回锁。在实验室环境下,连续稳定工作超过一个月仍然保持锁定状态,失锁后能在1 s内重新锁定,锁定后线宽为5 MHz。作为抽运和探测光源,DFB激光器长期连续锁定的实现,为实现脉冲激光抽运(pulsed optically pumped,POP)铷原子钟在空间应用环境下长期无人干预稳定运行奠定了技术基础。

关键词(KeyWords)： 激光器自动稳频;饱和吸收光谱;POP铷原子钟;DFB激光器

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金资助项目(11303030);; 国家杰出青年科学基金资助项目(61025023)

作者(Author): 鱼志健;薛文祥;赵文宇;李孝峰;陈江;阮军;杜志静;张首刚;

Email:

DOI: 10.13875/j.issn.1674-0637.2015-03-0129-10

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