东北大学学报(自然科学版) ›› 2025, Vol. 46 ›› Issue (6): 26-31.DOI: 10.12068/j.issn.1005-3026.2025.20240012

• 信息与控制 • 上一篇    下一篇

级联激光器产生可调谐微波频率梳的实验研究

杨永超1,2, 赵清春1,2, 朱天意1,2, 吴宾1,2   

  1. 1.东北大学秦皇岛分校 计算机与通信工程学院,河北 秦皇岛 066004
    2.东北大学秦皇岛分校 河北省海洋感知网络与数据处理重点实验室,河北 秦皇岛 066004
  • 收稿日期:2024-01-11 出版日期:2025-06-15 发布日期:2025-09-01
  • 作者简介:杨永超(1998—),男,山西晋中人,东北大学硕士研究生
    赵清春(1982—),男,山东沂南人,东北大学副教授,硕士生导师.
  • 基金资助:
    国家自然科学基金资助项目(62101113);中央高校基本科研业务费专项资金资助项目(2123024)

Experimental Investigations on Generation of Tunable Microwave Frequency Combs by Cascading Lasers

Yong-chao YANG1,2, Qing-chun ZHAO1,2, Tian-yi ZHU1,2, Bin WU1,2   

  1. 1.School of Computer and Communication Engineering,Northeastern University at Qinhuangdao,Qinhuangdao 066004,China
    2.Hebei Key Laboratory of Marine Perception Network and Data Processing,Northeastern University at Qinhuangdao,Qinhuangdao 066004,China. Corresponding author:ZHAO Qing-chun
  • Received:2024-01-11 Online:2025-06-15 Published:2025-09-01

摘要:

为了获得高性能的微波频率梳,提出了基于3个激光器(ML,IL,SL)级联注入产生可调谐微波频率梳的全光方案.该方案无需外部微波信号源调制,是一套全光产生装置.介绍了实验装置及工作原理,通过实验分析了激光器的泵浦电流、注入光功率、反馈光功率以及2个激光器中心频率失谐对生成微波频率梳信号的梳线数目、带宽、峰值最大功率、频率间隔的影响.结果表明,当可调光衰减器VOA1,VOA2和VOA3的功率衰减值分别为13,13和21.5 dB,SL的泵浦电流为56.1 mA,ML和IL之间频率失谐为70.625 GHz时,可以获得带宽为11.87 GHz的微波频率梳信号.

关键词: 微波频率梳, 光生微波, 激光器, 光注入, 光反馈

Abstract:

In order to obtain high-performance microwave frequency combs, an all-optical scheme for generating a tunable microwave frequency comb using three lasers in cascading injection is proposed. This scheme does not require external modulation from a microwave signal source, making it a fully optical generation device. The experimental setup and working principle are introduced. The impacts of various factors, namely the pump current, injected optical power, feedback optical power, and central frequency detuning between two lasers, on the number of comb lines, bandwidth, peak maximum power, and frequency spacing of the generated microwave frequency comb signals are analyzed by experiments. The results indicate that when the power attenuation values of VOA1, VOA2, and VOA3 are 13, 13 and 21.5 dB, respectively, the pump current of SL is 56.1 mA, and the frequency detuning between ML and IL is 70.625 GHz, a microwave frequency comb signal with a bandwidth of 11.87 GHz can be obtained.

Key words: microwave frequency comb (MFC), optically generated microwave, laser, optical injection, optical feedback

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