Narrow-Band Fiber Bragg Grating Based Single Sideband Microwave Modulation

SHEN Yi-chun; ZHANG Xian-min; CHEN Kang-sheng

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Narrow-Band Fiber Bragg Grating Based Single Sideband Microwave Modulation

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- Narrow-Band Fiber Bragg Grating Based Single Sideband Microwave Modulation
- Acta Electronica Sinica Vol. 33, Issue 5, Pages: 871-874(2005)
- 作者机构：
  
  浙江大学信息与电子工程学系,浙江,杭州,310027
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN832+.2
- Published：2005
- 稿件说明：
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SHEN Yi-chun, ZHANG Xian-min, CHEN Kang-sheng. Narrow-Band Fiber Bragg Grating Based Single Sideband Microwave Modulation[J]. Acta Electronica Sinica, 2005, 33(5): 871-874.
DOI：

SHEN Yi-chun, ZHANG Xian-min, CHEN Kang-sheng. Narrow-Band Fiber Bragg Grating Based Single Sideband Microwave Modulation[J]. Acta Electronica Sinica, 2005, 33(5): 871-874. DOI：

摘要

利用窄带光纤光栅简单而有效地实现了RoF系统中单边带调制

克服长距离传输时的色散损耗.分析了RoF系统中双边带调制对系统带来的影响

以及单边带滤波对窄带光纤光栅反射光谱和反射率的要求.研究了采用基于窄带光纤光栅的单边带调制后

对不同调制方式、不同调制速率、不同传输距离的RoF传输系统性能的改善情况.实验研究表明

光纤光栅单边带调制在以16QAM调制的15GHz RoF系统中传输25km后

信噪比与双边带调制相比可提高约4dB.

Abstract

Single sideband optical modulation in radio over fiber system is implemented simply and effectively by the narrow-band fiber Bragg grating to decrease the dispersion penalty in long-distance transmission.The effect of double sideband on the performance of radio over fiber system is theoretically analyzed

and the requirements of single sideband filtering to reflective spectrum and reflectivity of narrow-band fiber Bragg grating are discussed.Using the narrow-band fiber Bragg grating based sideband modulation

the improvement of transmission performance of radio over fiber system with several different modulation formats

modulation speeds

and transmission distances is investigated.The experiment results show that the signal noise ratio is enhanced about 4dB on double sideband modulation in the 25 km 15GHz radio over fiber system with 16QAM modulation.

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