Multichannel coherent channelized reception of high frequency broadband signals based on cascaded modulation dual combs

Haoyang Li; Shaobo Li; Anni Liu; Dong An; Yu Liang; Xiang Ma; Xiaodong Liang

doi:10.1117/12.2690236

17 August 2023 Multichannel coherent channelized reception of high frequency broadband signals based on cascaded modulation dual combs

Haoyang Li, Shaobo Li, Anni Liu, Dong An, Yu Liang, Xiang Ma, Xiaodong Liang

Author Affiliations +

Proceedings Volume 12757, 3rd International Conference on Laser, Optics, and Optoelectronic Technology (LOPET 2023); 1275738 (2023) https://doi.org/10.1117/12.2690236
Event: 3rd International Conference on Laser, Optics and Optoelectronic Technology (LOPET 2023), 2023, Kunming, China

Abstract

The trend of modern radar signals towards multi format, multi frequency band, and large bandwidth has posed greater challenges to radar signal detection in electronic warfare, requiring receivers to have large instantaneous bandwidth, wide spectral coverage and high-frequency spectral resolution capabilities. Microwave photon technology, due to its advantages of low loss, large bandwidth, resistance to electromagnetic interference, and simple equipment structure, is matched with the demand for ultra wideband channelized reception. This article designs a parallel reconfigurable channelized reception scheme for high-frequency and broadband signals and conducts simulation verification. A coherent dual optical comb with 30 comb teeth is generated based on a cascaded electro-optic modulator, and a dual parallel Mach-Zehnder modulator is used to broadcast the broadband signals and frequency shifting of optical combs to achieve channel division of 17 channels. Finally, a filter was used to filter out the signal from a single free spectral region of the optical comb for down conversion, achieving information extraction of high-frequency broadband signals with a bandwidth smaller than the free spectral range of the optical frequency comb using a small free spectral region optical frequency comb.

Citation Download Citation

Haoyang Li, Shaobo Li, Anni Liu, Dong An, Yu Liang, Xiang Ma, and Xiaodong Liang "Multichannel coherent channelized reception of high frequency broadband signals based on cascaded modulation dual combs", Proc. SPIE 12757, 3rd International Conference on Laser, Optics, and Optoelectronic Technology (LOPET 2023), 1275738 (17 August 2023); https://doi.org/10.1117/12.2690236

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