基于FPGA的Kerr光孤子频率梳主动控制系统实现

doi:10.11938/cjmr20253167

波谱学杂志 ›› 2026, Vol. 43 ›› Issue (1): 104-113.doi: 10.11938/cjmr20253167cstr: 32225.14.cjmr20253167

• 研究论文 • 上一篇

基于FPGA的Kerr光孤子频率梳主动控制系统实现

刘康琦¹^,²^,³, 李晨虹¹^,²^,³, 曲明飞¹^,²^,³, 王鹏飞¹^,², 赵峰¹^,², 康松柏¹^,²^,^*()

1.中国科学院精密测量科学与技术创新研究院，湖北武汉 430071
2.中国科学院原子频标重点实验室，湖北武汉 430071
3.中国科学院大学，北京 100049

收稿日期:2025-05-19 出版日期:2026-03-05 在线发表日期:2025-07-01
通讯作者: *Tel: 15871777484, E-mail: kangsongbai@wipm.ac.cn.

Implementation of an Active Control System for Kerr Optical Soliton Frequency Comb Based on FPGA

LIU Kangqi¹^,²^,³, LI Chenhong¹^,²^,³, QU Mingfei¹^,²^,³, WANG Pengfei¹^,², ZHAO Feng¹^,², KANG Songbai¹^,²^,^*()

1. Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan 430071, China
2. Key Laboratory of Atomic Frequency Standards, Chinese Academy of Sciences, Wuhan 430071, China
3. University of Chinese Academy of Sciences, Beijing 100049, China

Received:2025-05-19 Published:2026-03-05 Online:2025-07-01
Contact: *Tel: 15871777484, E-mail: kangsongbai@wipm.ac.cn.

摘要/Abstract

摘要：

Kerr光孤子频率梳因具备毫米级尺寸、低阈值泵浦光功率等特点，是目前芯片级光频原子钟研究的热点技术之一．Kerr光孤子形成过程中腔内功率骤降，热效应引起的腔频漂移会显著缩短Kerr光孤子频率梳的寿命．目前已有孤子功率控制、Pound-Drever-Hall（PDH）锁频技术以及辅助激光模式等多种主动控制方法来长时稳定Kerr光孤子的研究报道，但是应用于这些方案的电子学控制系统研究则鲜有报道．本文开发一种基于现场可编程逻辑门阵列（Field-Programmable Gate Array, FPGA）的Kerr光孤子频率梳的主动控制系统，并通过孤子功率控制和PDH频率控制两种主动控制方法，分别在MgF₂和CaF₂微腔中实现了Kerr光孤子频率梳长时间稳定．该控制系统也可以用于其他微腔光梳平台（如Si₃N₄、AlN、SiO₂）的Kerr光孤子频率梳产生与稳定．

关键词: Kerr光孤子频率梳, 主动控制, 现场可编程逻辑门阵列

Abstract:

Due to their millimeter-scale size and low pump power threshold, Kerr optical soliton frequency combs have emerged as a key technology for chip-scale optical atomic clock research. However, the abrupt intracavity power drop during Kerr optical soliton formation leads to cavity frequency drift, which significantly shortens the lifetime of Kerr optical soliton frequency combs. Some active control methods have been reported for long-term stabilization of Kerr solitons, such as soliton power control, Pound-Drever-Hall frequency locking, and auxiliary laser mode. However, the electronic control systems used for these methods are rarely reported. This work presents an active control system for stabilizing Kerr optical soliton frequency combs based on Field-Programmable Gate Array (FPGA). It achieves long-term stable operation of Kerr optical soliton combs in both MgF₂ and CaF₂ microresonators by power control and PDH frequency locking. Furthermore, the system can be extended to other microresonator platforms (e.g., Si₃N₄, AlN, SiO₂) for Kerr optical soliton frequency generation and stabilization.

Key words: Kerr optical soliton frequency comb, active control, field-programmable gate array (FPGA)

中图分类号:

O482.53

刘康琦, 李晨虹, 曲明飞, 王鹏飞, 赵峰, 康松柏. 基于FPGA的Kerr光孤子频率梳主动控制系统实现[J]. 波谱学杂志, 2026, 43(1): 104-113.

LIU Kangqi, LI Chenhong, QU Mingfei, WANG Pengfei, ZHAO Feng, KANG Songbai. Implementation of an Active Control System for Kerr Optical Soliton Frequency Comb Based on FPGA[J]. Chinese Journal of Magnetic Resonance, 2026, 43(1): 104-113.

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参考文献 17

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微腔材料	产生Kerr光孤子频率梳的方法
MgF₂	快速扫频、Power-Kicking
SiO₂	相位调制脉冲泵、Power-Kicking
Si₃N₄	扫频、热调谐、相位调制脉冲泵、Power-Kicking、输入锁定、压点调谐
LiNbO₃	光折变
SiON	热调谐、辅助光
AlN	快速扫频、辅助模式
AlGaS	快速扫频

基于FPGA的Kerr光孤子频率梳主动控制系统实现

Implementation of an Active Control System for Kerr Optical Soliton Frequency Comb Based on FPGA

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