Millimeter-level high range resolution radar imaging enabled by optically injected semiconductor lasers

Fangzheng Zhang; Guanqun Sun; Shilong Pan

doi:10.1117/12.2619854

26 July 2022 Millimeter-level high range resolution radar imaging enabled by optically injected semiconductor lasers

Fangzheng Zhang, Guanqun Sun, Shilong Pan

Proceedings Volume 12278, 2021 International Conference on Optical Instruments and Technology: Optical Communication and Optical Signal Processing; 1227802 (2022) https://doi.org/10.1117/12.2619854
Event: 2021 International Conference on Optical Instruments and Technology, 2022, Online Only

Abstract

To cope with the bandwidth limitation of traditional electronic radars, many photonic radar signal generation and processing methods have been demonstrated, through which the range resolution has been improved to several millimeters. In recent years, the period-one oscillation of a semiconductor laser under optical injection has been proposed to generate frequency-modulated radar signals. Advantages of this method include large bandwidth, reconfigurable capability, and compact structure. In this report, we introduce the recent progress on radar signal generation and high resolution imaging based on period-one dynamics of semiconductor lasers. The generated frequency modulated signal bandwidth is as large as 18.5 GHz (1.5-20 GHz). The corresponding range resolution is measured to be 8.1 mm. Based on this signal generation scheme, high-resolution through the wall radar imaging is successfully achieved.

Citation Download Citation

Fangzheng Zhang, Guanqun Sun, and Shilong Pan "Millimeter-level high range resolution radar imaging enabled by optically injected semiconductor lasers", Proc. SPIE 12278, 2021 International Conference on Optical Instruments and Technology: Optical Communication and Optical Signal Processing, 1227802 (26 July 2022); https://doi.org/10.1117/12.2619854

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