Photonic generation of microwave signal using a rational harmonic mode-locked fiber ring laser

被引：68
|
作者：
Deng, ZC [1 ]
Yao, JP [1 ]
机构：
[1] Univ Ottawa, Microwave Photon Res Lab, Sch Informat Technol & Engn, Ottawa, ON K1N 6N5, Canada
来源：
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES | 2006年 / 54卷 / 02期
关键词：
fiber ring laser; microwave photonics; optical generation of microwave signal; radio over fiber; rational harmonic mode locking;
D O I：
10.1109/TMTT.2005.862624
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 novel method for microwave signal generation using a rational harmonic actively mode-locked fiber ring laser is proposed and demonstrated. The microwave signal is generated by beating the actively mode-locked longitudinal modes from the rational mode-locked fiber ring laser at a photodetector. The phases of the longitudinal modes are phased locked, which ensures a generated microwave signal with very low phase noise. In the proposed approach, the generated microwave signal has a frequency a few times higher than the microwave drive signal. Therefore, only a low-frequency reference source and a low-speed modulator are required. A rational harmonic actively mode-locked fiber ring laser is experimentally demonstrated. With a microwave drive signal at 5.52 GHz, a microwave signal with a frequency that is four times the frequency of the microwave drive signal at 22.08 GHz is generated. The generated microwave signal is very stable with a spectral width of less than I Hz.
引用
收藏
页码：763 / 767
页数：5
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