Dual-Wavelength Linearization of Optically Phase-Modulated Analog Microwave Signals

被引：40

作者：

Haas, Bryan M. ^{[1
]}

Urick, Vincent J. ^{[2
]}

McKinney, Jason D. ^{[2
]}

Murphy, Thomas E. ^{[3
]}

机构：

[1] Lab Phys Sci, College Pk, MD 20740 USA

[2] USN, Res Lab, Washington, DC USA

[3] Univ Maryland, Dept Elect & Comp Engn, College Pk, MD 20742 USA

来源：

JOURNAL OF LIGHTWAVE TECHNOLOGY | 2008年 / 26卷 / 13-16期

关键词：

Analog optical links; microwave photonics intermodulation distortion; phase modulation; polarization;

D O I：

10.1109/JLT.2008.925656

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：

We demonstrate a new technique for improving the linearity of a microwave photonic signal transmission link. The method employs a single conventional lithium-niobate phase modulator at the transmitter, with two different C-band optical wavelengths that are polarized along orthogonal axes of the modulator. The spurious-free dynamic range is shown to improve by 15 dB compared to a single-wavelength unlinearized system. Unlike earlier schemes that require continuous control and adjustment at the transmitter in order to maintain linearity, the new method enables all of the linearization to be controlled at the receiver end.

引用

收藏

页码：2748 / 2753

页数：6

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