Microwave channelization based on dual coherent optical frequency combs

Xin Zhang; Tian Jiang; Jianghua Zhang; Xin Zheng; Ke Yin; Jie Yang

doi:10.1117/12.2549977

20 December 2019 Microwave channelization based on dual coherent optical frequency combs

Xin Zhang, Tian Jiang, Jianghua Zhang, Xin Zheng, Ke Yin, Jie Yang

Proceedings Volume 11209, Eleventh International Conference on Information Optics and Photonics (CIOP 2019); 1120953 (2019) https://doi.org/10.1117/12.2549977
Event: Eleventh International Conference on Information Optics and Photonics (CIOP 2019), 2019, Xi'an, China

Abstract

In this paper, we illustrate a radio-frequency (RF) channelization scheme based on dual optical frequency combs (OFCs). Modulated by two sets of cascaded electro-optic (EO) modulators, dual coherent OFCs with different free spectrum ranges (FSRs), namely 10 GHz and 11 GHz, are generated. Based on OFCs, a channelizer with six channels, 1 GHz channel spacing is experimentally demonstrated, covering frequency range from 1 GHz to 7 GHz. The input RF signal is impressed onto the signal comb by a Dual-Parallel Mach-Zander modulator (DPMZM). At the same time, balance detection methods and I/Q demodulation are used to achieve high-precision reception and the processing of RF signals. Selecting the corresponding channel with a waveshaper, the performance of six channels is shown and the spectra at different stages are also demonstrated.

Citation Download Citation

Xin Zhang, Tian Jiang, Jianghua Zhang, Xin Zheng, Ke Yin, and Jie Yang "Microwave channelization based on dual coherent optical frequency combs", Proc. SPIE 11209, Eleventh International Conference on Information Optics and Photonics (CIOP 2019), 1120953 (20 December 2019); https://doi.org/10.1117/12.2549977

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