Tunable Multi-Band Linear Frequency Modulated Waveforms Generation Based on Self-Subharmonic Modulating of Optically Injected Semiconductor Laser

被引：0
作者：
Yu, Jiachen [1 ]
Gu, Yiying [1 ]
Huang, Pengyuan [1 ]
Zu, Shuai [1 ]
Wang, Jiaqi [1 ]
Li, Xiaozhou [1 ]
Zhao, Mingshan [1 ]
Hu, Jingjing [2 ]
机构：
[1] Dalian Univ Technol, Sch Optoelect Engn & Instrumentat Sci, Dalian 116024, Peoples R China
[2] Dalian Univ Technol, Sch Phys, Dalian 116024, Peoples R China
来源：
IEEE PHOTONICS JOURNAL | 2025年 / 17卷 / 02期
基金：
中国国家自然科学基金;
关键词：
Linear frequency modulated waveform; optically injected semiconductor laser; subharmonic modulation; OPTOELECTRONIC OSCILLATOR; NONLINEAR DYNAMICS; PHOTONICS; ENHANCEMENT;
D O I：
10.1109/JPHOT.2025.3532894
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A tunable multi-band linear frequency modulated microwave waveform generating system based on photonic approach is proposed and experimentally demonstrated. In this system, a semiconductor laser is optically injected in period-one oscillation state. The optical injection signal, modulated by the period-one signal via a photodetector, subharmonically modulates the laser, enhancing waveform stability. The modulated laser period is set as an integer multiple of cavity delay to approach Fourier domain mode-locking, simultaneously boosting signals across frequencies and times. The generated waveform can be tuned to generate either a unidirectional chirped or a bidirectional reciprocal chirped linear frequency modulated signal, and its center frequency and bandwidth can be easily adjusted.
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页数：7
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