Frequency response equalization in phase modulated RoF systems using optical carrier Brillouin processing

doi:10.1007/s12200-011-0149-6

Front Optoelec Chin

2011, Vol. 4

Issue (3) : 277-281 https://doi.org/10.1007/s12200-011-0149-6

RESEARCH ARTICLE

Frequency response equalization in phase modulated RoF systems using optical carrier Brillouin processing

Shilie ZHENG, Sixuan GE, Hao CHI, Xiaofeng JIN, Xianmin ZHANG(

)

Department of Information Science and Electronic Engineering, Zhejiang University, Hangzhou 310027, China

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Abstract

A novel method is demonstrated to tunably compensate dispersion effect in phase modulated radio over fiber (RoF) links using an optical carrier Brillouin processing technique, which is based on stimulated Brillouin scattering (SBS) to control the phase shift of optical carrier in the modulated lightwave signal. Since this phase shift can be dynamically tuned, frequency response can be tunably improved. Both simulation and experimental results show that a uniform frequency response ranging from 1–12 GHz with a fluctuation of less than±1 dB can be obtained by an optimal phase shift on the optical carrier.

Keywords frequency response dispersion effect phase modulation radio over fiber link stimulated Brillouin scattering

Corresponding Author(s): ZHANG Xianmin,Email:zhangxm@zju.edu.cn

Issue Date: 05 September 2011

Cite this article:

Shilie ZHENG,Sixuan GE,Hao CHI, et al. Frequency response equalization in phase modulated RoF systems using optical carrier Brillouin processing[J]. Front Optoelec Chin, 2011, 4(3): 277-281.

URL:

https://academic.hep.com.cn/foe/EN/10.1007/s12200-011-0149-6
https://academic.hep.com.cn/foe/EN/Y2011/V4/I3/277

Fig.1 Simulated frequency response of 25 km phase modulated RoF links with and without optical carrier Brillouin process

Fig.2 Experimental setup for dispersion compensation

Fig.3 Experimental frequency response of 25 km phase modulated RoF links with and without optical carrier Brillouin process

Fig.4 Measured RF spectra at 2, 12 and 17.71 GHz with (above) and without (bottom) optical carrier Brillouin process when = 10.843 GHz, respectively

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