Pulse radar signal generation technology based on a Fourier domain mode-locked optoelectronic oscillator

Yalan Wang; Xiang Li; Jianghai Wo; Jin Zhang; Anle Wang; Depei Zhang; Chengji Lin; Xiaoniu Peng

doi:10.1117/12.2617326

15 February 2022 Pulse radar signal generation technology based on a Fourier domain mode-locked optoelectronic oscillator

Yalan Wang, Xiang Li, Jianghai Wo, Jin Zhang, Anle Wang, Depei Zhang, Chengji Lin, Xiaoniu Peng

Author Affiliations +

Proceedings Volume 12166, Seventh Asia Pacific Conference on Optics Manufacture and 2021 International Forum of Young Scientists on Advanced Optical Manufacturing (APCOM and YSAOM 2021); 121664J (2022) https://doi.org/10.1117/12.2617326
Event: Seventh Asia Pacific Conference on Optics Manufacture and 2021 International Forum of Young Scientists on Advanced Optical Manufacturing (APCOM and YSAOM 2021), 2021, Hong Kong, Hong Kong

Abstract

We propose and experimentally demonstrate a pulse radar signal generation based on the Fourier domain mode-locked optoelectronic oscillator (FDML-OEO). In this method, two low-frequency control signals generated by a direct digital synthesizer (DDS) are adopted to control the tunable laser source (TLS) and the bias voltage of Mach-Zehnder modulators (MZM) respectively. The broadband pulse signals are generated by directly truncating the broadband signals on the basis of a FDML-OEO by controlling the frequency and amplitude of the bias voltage of the MZM. In the experiment, the broadband radar pulse signals with tunable duty cycle and the center frequency are demonstrated. In particular, the center frequency of signals are tuned by changing the initial phase of pulse driving signal and the triangular wave or the wavelength of TLS, which have greatly potential in improving the detection capability of the radar system.

Citation Download Citation

Yalan Wang, Xiang Li, Jianghai Wo, Jin Zhang, Anle Wang, Depei Zhang, Chengji Lin, and Xiaoniu Peng "Pulse radar signal generation technology based on a Fourier domain mode-locked optoelectronic oscillator", Proc. SPIE 12166, Seventh Asia Pacific Conference on Optics Manufacture and 2021 International Forum of Young Scientists on Advanced Optical Manufacturing (APCOM and YSAOM 2021), 121664J (15 February 2022); https://doi.org/10.1117/12.2617326

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KEYWORDS

Signal generators

Radar

Oscillators

Mode locking

Phase modulation

Target detection

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