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5 November 2020 Filter-free photonic generation of dual-chirp microwave waveform with frequency and bandwidth multiplication
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Proceedings Volume 11569, AOPC 2020: Optical Information and Network; 115690R (2020) https://doi.org/10.1117/12.2580309
Event: Applied Optics and Photonics China (AOPC 2020), 2020, Beijing, China
Abstract
An approach for photonic generation dual-chirp microwave waveform (DCMW) with frequency and bandwidth multiplication without filtering is proposed and demonstrated. A continuous-wave (CW) optical signal is sent to a polarization division multiplexing modulator. In the modulator, one part of the CW optical signal is modulated by the radio-frequency (RF) driving signals to generate ±2 nd-order single-frequency sidebands, while another one is modulated by the baseband chirped signals to generate ±2 nd-order chirped sidebands. After that, a frequency-doubled and bandwidth-quadrupled DCMW can be generated by photoelectric balanced detection. In the simulation experiments, by using a RF driving signal at 5GHz and a baseband single-chirp signal with bandwidth of 0.5GHz as the input electrical signals, a DCMW with central frequency of 10GHz and bandwidth of 2GHz is generated.
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Xiong Luo, Lan Yu, Jin Zhang, Shirui Du, Haiteng Zhang, Xiang Li, Jianghai Wo, Yalan Wang, and Anle Wang "Filter-free photonic generation of dual-chirp microwave waveform with frequency and bandwidth multiplication", Proc. SPIE 11569, AOPC 2020: Optical Information and Network, 115690R (5 November 2020); https://doi.org/10.1117/12.2580309
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