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

IF 2.1 4区工程技术 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Photonics Journal Pub Date : 2025-01-23 DOI:10.1109/JPHOT.2025.3532894

Jiachen Yu;Yiying Gu;Pengyuan Huang;Shuai Zu;Jiaqi Wang;Xiaozhou Li;Mingshan Zhao;Jingjing Hu

引用次数: 0

Abstract

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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来源期刊

IEEE Photonics Journal ENGINEERING, ELECTRICAL & ELECTRONIC-OPTICS

CiteScore

4.50

自引率

8.30%

发文量

489

审稿时长

1.4 months

期刊介绍： Breakthroughs in the generation of light and in its control and utilization have given rise to the field of Photonics, a rapidly expanding area of science and technology with major technological and economic impact. Photonics integrates quantum electronics and optics to accelerate progress in the generation of novel photon sources and in their utilization in emerging applications at the micro and nano scales spanning from the far-infrared/THz to the x-ray region of the electromagnetic spectrum. IEEE Photonics Journal is an online-only journal dedicated to the rapid disclosure of top-quality peer-reviewed research at the forefront of all areas of photonics. Contributions addressing issues ranging from fundamental understanding to emerging technologies and applications are within the scope of the Journal. The Journal includes topics in: Photon sources from far infrared to X-rays, Photonics materials and engineered photonic structures, Integrated optics and optoelectronic, Ultrafast, attosecond, high field and short wavelength photonics, Biophotonics, including DNA photonics, Nanophotonics, Magnetophotonics, Fundamentals of light propagation and interaction; nonlinear effects, Optical data storage, Fiber optics and optical communications devices, systems, and technologies, Micro Opto Electro Mechanical Systems (MOEMS), Microwave photonics, Optical Sensors.