Chinese Journal of Lasers, Volume. 36, Issue 11, 2945(2009)
Radio Over Fiber Downlink System Based on a New Double-Uniform Fiber Bragg Grating Millimeter-Wave Generator
A new method is proposed to realize millimeter-wave sub-carrier generation at central station by using a double-uniform fiber Bragg grating filter (UFBG) scheme. Two optical waves with a spectrum of a millimeter-wave sub-carrier distance heterodyne after detector at base station then we can get the wanted millimeter-wave signal. The advantages of this new method of millimeter-wave sub-carrier generation are analyzed by designing a radio over fiber (ROF) downlink system,and the eye diagrams after detection and interference demodulation in 0 km,10 km,30 km,40 km transmission distance are also analyzed. Moreover,performance of this radio over fiber downlink system could be improved by reducing the bandwidth of band-pass filter of millimeter-wave sub-carrier generator. The proposed scheme may be taken as one of the candidates for the next generation high-speed and large-capability radio over fiber system.
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Wu Shuqiang, Pei Li, Ning Tigang, Qi Chunhui, Guo Lan. Radio Over Fiber Downlink System Based on a New Double-Uniform Fiber Bragg Grating Millimeter-Wave Generator[J]. Chinese Journal of Lasers, 2009, 36(11): 2945
Category: Optical communication
Received: Oct. 14, 2008
Accepted: --
Published Online: Nov. 11, 2009
The Author Email: Shuqiang Wu (treeheni@163.com)