| 面向宽带接入与泛在感知应用的基于双波长的线性化光载无线链路 |
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| 引用本文： | 吴钟乐,吕强,戴一堂,林金桐. 面向宽带接入与泛在感知应用的基于双波长的线性化光载无线链路[J]. 中国通信, 2012, 9(1): 20-24 |
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| 作者姓名： | 吴钟乐 吕强 戴一堂 林金桐 |
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| 摘 要： |
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| 收稿时间： | 2012-02-22; |
Dual-Wavelength Linearization of Radio-over-Fiber Link for Broadband Access and Ubiquitous Sensing |
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| Wu Zhongle,Lv Qiang,Dai Yitang,Lin Jintong. Dual-Wavelength Linearization of Radio-over-Fiber Link for Broadband Access and Ubiquitous Sensing[J]. China Communications, 2012, 9(1): 20-24 |
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| Authors: | Wu Zhongle Lv Qiang Dai Yitang Lin Jintong |
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| Affiliation: | State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing 100876, P. R China |
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| Abstract: | Radio-over-Fiber ( RoF ) technologies have been considered to be a promising solution to broadband access and ubiquitous sensing. We present a novel approach using dual-wavelength lights to suppress the nonlinear intermodulation distortion in intensity-modulated RoF link both theoretically and experimentally. The system we proposed mainly consists of two Laser Diodes (LDs ) at different wavelengths, a commercial available Mach-Zehnder Modulator (MZM) and a Photo Detector (PD). More than 25 dB suppression of the Third-order Intermodulation Distortion (IMD3) is achieved by adjusting the wavelength and optical power of the laser. Besides , the output of the MZM is then sent to the photodetector via a single fiber, which simplifies the system complexity for distribution of RF signals over long distances . |
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| Keywords: | RoF optical linearization IMD3 intensity modulator |
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