@inproceedings{15800b4db060481695dba05dca46a32e,
title = "Self-injection locking dual-DFB lasers based on a micro-resonator for ultra-low noise microwave generation",
abstract = "A novel scheme for generating ultra-narrow linewidth and ultra-low noise photonic microwave based on simultaneous self-injection locking of dual DFB lasers is proposed and demonstrated. Herein, two narrow linewidth DFB lasers can be independently achieved by Rayleigh backscattering excited in a micro-resonator as feedback for self-injection locking. The 3-dB linewidth of the DFB laser is compressed from 320 kHz to 1.5 kHz, which is narrowed by 2 orders of magnitude. Based on dual narrow linewidth lasers locked to the same micro-resonator, an all-optical high-performance photonic microwave signal is generated by using the optical heterodyne method. The photonic microwave signal with the single sideband phase noise of-102 dBc/Hz and frequency noise of 600 Hz2/Hz is obtained at a frequency offset of 1 MHz for the generated 5.42 GHz microwave. The proposed scheme is also applicable to any other type of lasers such as VCSEL, fiber lasers et al, which provides a new perspective for the generation of ultra-low noise microwave signals.",
keywords = "Micro-resonator, Microwave generation, Self-injection locking, Ultra-low noise",
author = "Laiyang Dang and Dongmei Huang and Chao Wang and Yujia Li and Feng Li",
note = "Publisher Copyright: {\textcopyright} COPYRIGHT SPIE. Downloading of the abstract is permitted for personal use only.; 2023 Advanced Fiber Laser Conference, AFL 2023 ; Conference date: 10-11-2023 Through 12-11-2023",
year = "2024",
month = mar,
day = "18",
doi = "10.1117/12.3023345",
language = "English",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
publisher = "SPIE",
editor = "Pu Zhou",
booktitle = "Advanced Fiber Laser Conference, AFL 2023",
address = "United States",
}