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A radio-over-fiber(ROF) downlink system based on a new polarization-stable millimeter-wave generator is proposed to reduce costs, increase transmission distance and improve system performance. Compared with traditional system, the system uses two polarization-stable laser signals produced by selecting the frequency of the polarization maintaining fiber Bragg grating(PMFBG) to generate millimeter-wave by beating frequency. It is easy to be implemented and the influence of power noise on the system is reduced. The effects of laser power, linewidth and reflectance spectrum of PMFBG on the performance of millimeter-wave are analyzed; Simulation shows that the frequency of millimeter-wave is affected by the group delay, the length, the dispersion of the polarization-maintaining fiber(PMF) and the width, the chirp coefficient of laser's pulse profile. After optimizing parameters of PMF, millimeter-wave of 60GHz is generated, and the ROF downlink system is analyzed. The results of the study show that the eye diagrams demodulated in the mobile station are excellent when the optical carrier which is modulated by the millimeter-wave serving as sub-carrier transmits over 80 kilometers from center station to base station. The excellent performance of the system is verified.
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Keywords:
- radio-over-fiber system /
- millimeter-wave /
- polarization-maintaining fiber /
- optical communications
[1] Xin X J, Zhang L J, Liu B, Yu J J 2011 Optics Express 19 7847
[2] Liu B, Xin X J, Zhang L J, Yu J J, Zhang Q, Yu C X 2010 Optics Express 18 2137
[3] Li J, Ning T G, Pei L, Qi C H 2009 Optics Letters 34 3136
[4] Braun R P, Grosskopf G, Rohde D, Schmidt F 1998 IEEE Photonics Technology Letters 10 728
[5] Bordonalli A C, Walton C, Seeds A J 1999 Journal of Lightwave Technology 17 328
[6] Johansson L A, Seeds A J 2000 IEEE Photonics Technology Letters 12 690
[7] Li J, Ning T G, Pei L, Zhou Q, Hu X D, Qi C H, Gao S, Yang L 2011 Acta Phys. Sin. 60 054203 (in Chinese) [李晶, 宁提纲, 裴丽, 周倩, 胡旭东, 祁春慧, 高嵩, 杨龙 2011 60 054203]
[8] Levinson O, Horowitz M 2003 Journal of Lightwave Technology 21 1179
[9] Shi Y Y 2009 MS Thesis (Beijing: Beijing Jiaotong University) (in Chinese) [史嫄嫄 2009 硕士学位论文 (北京:北京交通大学)]
[10] Xu O, Lu S H, Jian S S 2008 Acta Phys. Sin. 57 6404 (in Chinese) [许鸥, 鲁韶华, 简水生 2008 57 6404]
[11] Ren G J, Wei Z, Yao J Q 2009 Acta Phys. Sin. 58 941 (in Chinese) [任广军, 魏臻, 姚建铨 2009 58 6404]
[12] Yang W, Liu Y, Xiao L F, Yang Z X, Pan J X 2010 Acta Phys. Sin. 59 1030 (in Chinese) [杨薇, 刘迎, 肖立峰, 杨兆祥, 潘建旋 2010 59 1030]
[13] Wang J, Zheng K, Li J, Liu L S, Chen G X, Jian S S 2009 Acta Phys. Sin. 58 7695 (in Chinese) [王静, 郑凯, 李坚, 刘利松, 陈根祥, 简水生 2009 58 7695]
[14] Xue L F, Zhang Q, Li F, Zhou Y, Liu Y L 2011 Acta Phys. Sin. 60 014213 (in Chinese) [薛力芳, 张强, 李芳, 周燕, 刘育梁 2011 60 014213]
[15] Wu S Q, Pei L, Ning T G, Qi C H, Guo L 2009 Chinese J. Lasers 36 2945 (in Chinese) [吴树强, 裴丽, 宁提纲, 祁春慧, 郭兰 2009 中国激光 36 2945]
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[1] Xin X J, Zhang L J, Liu B, Yu J J 2011 Optics Express 19 7847
[2] Liu B, Xin X J, Zhang L J, Yu J J, Zhang Q, Yu C X 2010 Optics Express 18 2137
[3] Li J, Ning T G, Pei L, Qi C H 2009 Optics Letters 34 3136
[4] Braun R P, Grosskopf G, Rohde D, Schmidt F 1998 IEEE Photonics Technology Letters 10 728
[5] Bordonalli A C, Walton C, Seeds A J 1999 Journal of Lightwave Technology 17 328
[6] Johansson L A, Seeds A J 2000 IEEE Photonics Technology Letters 12 690
[7] Li J, Ning T G, Pei L, Zhou Q, Hu X D, Qi C H, Gao S, Yang L 2011 Acta Phys. Sin. 60 054203 (in Chinese) [李晶, 宁提纲, 裴丽, 周倩, 胡旭东, 祁春慧, 高嵩, 杨龙 2011 60 054203]
[8] Levinson O, Horowitz M 2003 Journal of Lightwave Technology 21 1179
[9] Shi Y Y 2009 MS Thesis (Beijing: Beijing Jiaotong University) (in Chinese) [史嫄嫄 2009 硕士学位论文 (北京:北京交通大学)]
[10] Xu O, Lu S H, Jian S S 2008 Acta Phys. Sin. 57 6404 (in Chinese) [许鸥, 鲁韶华, 简水生 2008 57 6404]
[11] Ren G J, Wei Z, Yao J Q 2009 Acta Phys. Sin. 58 941 (in Chinese) [任广军, 魏臻, 姚建铨 2009 58 6404]
[12] Yang W, Liu Y, Xiao L F, Yang Z X, Pan J X 2010 Acta Phys. Sin. 59 1030 (in Chinese) [杨薇, 刘迎, 肖立峰, 杨兆祥, 潘建旋 2010 59 1030]
[13] Wang J, Zheng K, Li J, Liu L S, Chen G X, Jian S S 2009 Acta Phys. Sin. 58 7695 (in Chinese) [王静, 郑凯, 李坚, 刘利松, 陈根祥, 简水生 2009 58 7695]
[14] Xue L F, Zhang Q, Li F, Zhou Y, Liu Y L 2011 Acta Phys. Sin. 60 014213 (in Chinese) [薛力芳, 张强, 李芳, 周燕, 刘育梁 2011 60 014213]
[15] Wu S Q, Pei L, Ning T G, Qi C H, Guo L 2009 Chinese J. Lasers 36 2945 (in Chinese) [吴树强, 裴丽, 宁提纲, 祁春慧, 郭兰 2009 中国激光 36 2945]
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