Transmission Performance Improvement in Microwave/Millimeter-Wave Optical System Using Chirped Fiber Grating |
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| Authors: | Shilie Zheng and Xianmin Zhang |
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| Affiliation: | (1) Department of Information and Electronic Engineering, Zhejiang University, Hangzhou, 310027, China;(2) The Electromagnetics Academy at Zhejiang University, Zhejiang University, Hangzhou, 310058, China |
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| Abstract: | A chirped fiber grating (CFG) written by the moving fiber/phase mask scanning beam technique with a uniform mask is used to demonstrate the dispersion compensation in the externally modulated microwave/millimeter-wave over fiber system. It is found that the use of the CFG is an efficient way to compensate for the severe RF power degradation induced by the fiber chromatic dispersion, which results in a significant improvement in the transmission performance. The signal to noise ratio is improved from 4.8 dB to 24.4 dB when 10.58 GHz RF signal carrying 5 Mbit/s QPSK format data is transmitted over 35 km single mode fiber. |
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| Keywords: | chirped fiber grating microwave/millimeter wave optical system dispersion compensation signal to noise ratio |
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