基于布里渊载波相移的宽带可调谐二倍频微波信号生成

郑狄; 潘炜; 闫连山; 罗斌; 邹喜华; 刘新开; 易安林

doi:10.7498/aps.63.154214

摘要

本文提出并实验验证了一种基于光纤中受激布里渊散射效应的光子二倍频微波信号生成技术. 利用布里渊增益谱内的强色散特性，对光强度调制器产生的双边带调制信号的载波进行/2相移，可实现载波与1阶边带拍频仅生成二倍频微波信号. 由于光纤中受激布里渊散射的窄带特性以及仅对双边带调制信号的载波进行相移，不影响调制信号两个边带的幅值和相位，因而生成的二倍频微波信号可实现宽带调谐，调谐范围仅受其他光器件的工作带宽限制. 此外，信号光和产生受激布里渊散射的抽运光均来自同一光源，因而不受波长漂移的影响，系统具良好的稳定性.

关键词:

Abstract

An optically tunable frequency-doubling microwave generation technique based on stimulated Brillouin scattering (SBS) in optical fibers is proposed and experimentally demonstrated. Due to the strong dispersion characteristics in SBS, when a up/2 phase shift is imposed on the optical carrier of an amplitude-modulated signal by SBS, only a frequency-doubling microwave signal from the beating between the optical carrier and the 1st sidebands is generated. Due to the inherent narrowband character of SBS and the phase shift being only imported on to the optical carrier while the sidebands are kept unchanged, the frequency-doubling with large frequency tunability is realized, the operational bandwidth is just limited by other optical device deployed. In addition, all the required optical signals and pumps can be generated from the same laser source, the influence from the wavelength drifting is eliminated, so the stability of the system is established.

Keywords:

作者及机构信息

1.
西南交通大学信息科学与技术学院, 成都 610031

基金项目: 高等学校博士学科点专项科研基金（批准号：20110184130003）和中央高校基本科研业务费专项资金（批准号：2682013CX056）资助的课题.

Authors and contacts

1.
School of Information Science and Technology, Southwest Jiaotong University, Chengdu 610031, China

Funds: Project supported by the Specialized Research Fund for the Doctoral Program of Higher Education of China (Grant No. 20110184130003), and the Fundamental Research Funds for the Central Universities of China (Grant No. 2682013CX056).

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施引文献

[1]	Fan Z, Dagenais M 1997 IEEE Trans. Microw. Theory Tech. 45 1296
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[3]	Rideout H, Seregelyi J, Paquet S, Yao J P 2006 IEEE Photon. Technol. Lett. 18 2344
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[6]	Niu S X, Wang Y C, He H C, Zhang M J Q 2009 Acta Phys. Sin. 58 7241 (in Chinese) [牛生晓, 王云才, 贺虎成, 张明江 2009 物理学报 58 7241]
[7]
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[9]	Xie H Y, Wang L, Zhao L J, Zhu H L, Wang W 2007 Chin. Phys. 16 1459
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[11]	Chen X, Yao J P, Deng Z 2005 Opt. Lett. 30 2068
[12]	O'Reilly J J, Lane P M, Heidemann R, Hofstetter R 1992 Electron. Lett. 28 2309
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[27]	Zheng D, Pan W, Yan L S, Luo B, Zou X H, Wen K H, Jiang N 2010 Chin. Phys. Lett. 26 124202
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