Dr. Chongyin Yi Profile

Dr. Chongyin Yi

at Zhejiang Univ

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Proceedings Article | 12 March 2021 Paper

Photonic generation of bandwidth-doubling dual-chirp waveform using a dual-parallel MZM

Chongyin Yi, Hongxia He, Bo Yang, Tao Jin, Hao Chi

Proceedings Volume 11763, 1176356 (2021) https://doi.org/10.1117/12.2587166

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Dual-chirp waveform, as a type of wideband radar signal that can improve the range-Doppler resolution in radar system has been studied widely. In this paper, a photonic scheme for generation of frequency- and bandwidth-doubling dualchirp waveform is proposed and experimental demonstrated. An integrated dual-parallel MZM is applied, where a microwave signal and a single-chirp signal are modulated, biasing at null and full points, respectively. An electrical rather than optical band-pass filter that used in the system can reduce the complexity. Experimental results perform the generated dual-chirp waveforms with frequency of 6 GHz and bandwidth of 2 GHz. The time-bandwidth product is about 154.2. Potentially, this approach can be a method for high frequency, large bandwidth and long duration dual-chirp waveforms generation

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