A Radar-communication System Based on Optoelectronic Oscillator for Intelligent Transportation

Xue, Zhujun; Li, Shangyuan; Xiao, Xu; Xue, Xiaoxiao; Zheng, Xiaoping; Zhou, Bingkun

doi:10.1364/cleo_at.2020.jtu2g.13

Cited by 3 publications

(1 citation statement)

References 4 publications

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“…With the rapid development of information technology, the generation of microwave signals with low phase noise and a widely tunable frequency range plays a crucial role in wireless communication, radar and optical communication [1][2][3][4][5]. The microwave signals generated by traditional electrical methods traditionally demonstrate poor phase noise.…”

Section: Introductionmentioning

confidence: 99%

Optically-Injected-Semiconductor-Laser-Based Tunable Dual-Frequency Optoelectronic Oscillator under Subharmonic Microwave Modulation

Zhao

et al. 2021

Applied Sciences

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To obtain low-phase-noise microwave signals with a widely tunable frequency range, an optoelectronic oscillator (OEO) was constructed on the basis of an optically injected semiconductor laser (OISL) for the generation of high-quality microwave signals. Our OEO relied on the effect of wavelength-selective amplification and the period-one (P1) oscillation under optical injection. The signal’s frequency stability, side-mode-suppression ratio (SMSR) and linewidth were optimized by the subharmonic microwave modulation technique in the OEO loop. The experimental results showed that the frequency of the signal obtained by the proposed OEO could be tuned up to 18 GHz. Using the dual-loop OEO structure, the SMSR was increased to 55 dB. Moreover, the phase noise of the obtained microwave signal was lower than −81 dBc/Hz at 1 kHz frequency offset and −119 dBc/Hz at 10 kHz frequency offset. This was achieved by introducing subharmonic microwave modulation in the OEO loop, respectively. Furthermore, via the utilization of a Fabry–Perot laser diode (FP-LD) in the proposed structure, a dual-loop OEO with different dual-frequency configurations (which could be tuned up to 12 and 18 GHz) was obtained.

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Section: Introductionmentioning

confidence: 99%

Optically-Injected-Semiconductor-Laser-Based Tunable Dual-Frequency Optoelectronic Oscillator under Subharmonic Microwave Modulation

Zhao

et al. 2021

Applied Sciences

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Parity-Time-Symmetric Optoelectronic Oscillator Based on DPMZM With Single-Sideband Suppressed-Carrier Modulation

Tian,

Wang,

et al. 2023

2023 IEEE 7th International Symposium on Electromagnetic Compatibility (ISEMC)

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Wideband tunable optoelectronic oscillator based on stimulated Brillouin scattering and a Mach–Zehnder interferometer

Zhou

et al. 2021

Appl. Opt.

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We propose a novel optoelectronic oscillator (OEO) based on stimulated Brillouin scattering (SBS) and a Mach–Zehnder interferometer (MZI). The SBS and MZI form a microwave photonic filter (MPF), which completes the frequency selection of the OEO. The width of the MPF passband can be changed by adjusting the DC voltage of the MZI. When the gap between the passbands is aligned with the side mode, the side mode can be suppressed; in this way, a single-mode optoelectronic oscillator is achieved. Compared with the previous structure, the proposed structure is more stable and easier to integrate. A stable frequency signal at 9.4 GHz is obtained with a phase noise of − 84.05 d B c / H z at 10 kHz, the side-mode-suppression ratio is 42 dB, and the frequency drift is below 50 kHz within 420 s. By adjusting the wavelength of the tunable laser source, a 280 MHz tuning range from 9.25 to 9.53 GHz is obtained. If an independent pump is introduced, a large tuning range is achieved from 9.4 to 24.9 GHz.

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A Radar-communication System Based on Optoelectronic Oscillator for Intelligent Transportation

Abstract: A hybrid radar-communication system for intelligent transportation based on optoelectronic oscillator is proposed. A code-stream with QPSK modulation of 2.4 Gb/s is generated experimentally at 24 GHz for high-speed communication and accurate ranging simultaneously.

Cited by 3 publications

References 4 publications

Optically-Injected-Semiconductor-Laser-Based Tunable Dual-Frequency Optoelectronic Oscillator under Subharmonic Microwave Modulation

Optically-Injected-Semiconductor-Laser-Based Tunable Dual-Frequency Optoelectronic Oscillator under Subharmonic Microwave Modulation

Parity-Time-Symmetric Optoelectronic Oscillator Based on DPMZM With Single-Sideband Suppressed-Carrier Modulation

Wideband tunable optoelectronic oscillator based on stimulated Brillouin scattering and a Mach–Zehnder interferometer

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