Photonic generation of BFSK RF signals based on optical pulse shaping
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This work has been supported by the National Natural Science Foundation of China (No.61032005), and the Postdoctoral Science Foundation under Grant of China (No.2012M510442).

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    Abstract:

    A novel method to generate binary frequency shift-keying (BFSK) radio frequency (RF) signals in optical domain is proposed. In the proposed system, an optical short pulse train is converted into super-Gaussian RF pulses with high frequency based on optical pulse shaping by two Mach-Zehnder fiber interferometers (MZIs). And the generated RF signals are coded using a fast electro-optic switch. By properly designing the MZIs, BFSK RF signals with desired code pattern and modulation index can be generated. A theoretical model for describing the system is developed, and the generation of BFSK RF signals in millimeter-wave regime is demonstrated via simulations.

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Xiang Peng, Zheng Xiao-ping, Zhang Han-yi, Li Yu-quan, Wang Rong. Photonic generation of BFSK RF signals based on optical pulse shaping[J]. Optoelectronics Letters,2012,8(5):368-371

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