Photonically generated frequency hopped linear frequency modulated signal using a DFB laser

B Nakarmi, Y Bai, C Fang, X Wang… - Journal of Lightwave …, 2022 - opg.optica.org
Threats and security are critical issues in a multi-RADAR environment, which severely affect
the performance metrics of a RADAR system, such as range resolution, false detection, and …

Reconfigurable identical and complementary chirp dual-LFM signal generation subjected to dual-beam injection in a DFB laser

H Chen, P Zhou, L Zhang, S Bassi… - Journal of Lightwave …, 2020 - ieeexplore.ieee.org
A photonic approach for identical and complementary chirp dual-linear frequency
modulation (LFM) signal generation using an optical injection in a distributed feedback …

Multi-Chirp LFM Waveforms Generation With Reconfigurable Chirp Rates Using Optical Injection in a Semiconductor Laser

B Nakarmi, BY Song, IA Ukaegbu… - Journal of Lightwave …, 2024 - opg.optica.org
We propose and experimentally demonstrate a photonics-based technique for generating
simultaneous up-down multiple chirp-rate linear frequency modulated (SUDMC-LFM) …

Multi-Chirp Piecewise Linearly Frequency Modulated Microwave Generation Using a Semiconductor Laser

B Nakarmi, BY Song, HN Parajuli… - IEEE Photonics …, 2023 - ieeexplore.ieee.org
A simple structured photonics-based multi-chirp piecewise linearly frequency modulated
microwave (Ph-MPLFM) waveform is proposed and demonstrated experimentally for radar …

Photonic-aid dual-formats LFM signals generator for joint radar-communication system

Z Yixiao, Z Shanghong, L Xuan, W Guodong… - Optik, 2022 - Elsevier
Abstract (Objective) A photonic-aid approach to generate dual-formats linearly frequency
modulation (LFM) signals for a joint radar-communication (JRC) system is proposed and …

Sparse frequency LFM ladar signals

RV Chimenti, MP Dierking, PE Powers, JW Haus - Optics Express, 2009 - opg.optica.org
Through modeling we explored the possibility of utilizing a sparse frequency linear
frequency modulation (LFM) signal for laser radar (ladar) applications. We propose a …

Photonic generation of NLFM microwave pulses from DFB-laser chirp

P Tovar, LEY Herrera, RM Ribeiro… - IEEE Photonics …, 2019 - ieeexplore.ieee.org
This letter reports the photonic generation of apodized-spectrum non-linear frequency-
modulated (NLFM) microwave pulses by using an optical self-heterodyne scheme. The …

Photonic Generation of Broadband Coherent LFM Microwave Waveforms Based on Phase-Locked Tunable Integrated Lasers

S Shao, L Tang, L Li, Y Wu, S Yang… - Journal of Lightwave …, 2023 - ieeexplore.ieee.org
We propose and demonstrate a novel scheme for generating broadband and high-
coherence linear frequency-modulated (LFM) waveforms based on heterodyne beating of …

Dual-band LFM signal generation by optical frequency quadrupling and polarization multiplexing

Q Guo, F Zhang, P Zhou, S Pan - IEEE Photonics Technology …, 2017 - ieeexplore.ieee.org
A photonic approach to generating dual-band linear frequency modulation (LFM) signal is
proposed based on optical frequency quadrupling and polarization multiplexing. This is …

The nonlinear tuning technique of a DFB laser using frequency predistortion procedures

P Li, T Yang, J Yang, Z Wang, D Jia… - Terahertz, RF, Millimeter …, 2020 - spiedigitallibrary.org
The frequency modulation continuous wave (FMCW) light detection and ranging (LIDAR)
has drawn enormous attention and intense effort. In this paper a nonlinear tuning technique …