Chinese Optics Letters, 2017, 15 (10): 100603, Published Online: Jul. 19, 2018  

Radio-frequency arbitrary waveform generation based on dispersion compensated tunable optoelectronic oscillator with ultra-wide tunability Download: 805次

Author Affiliations
Microwave Photonics Center, Air Force Early Warning Academy, Wuhan 430019, China
Abstract
Photonic generation of radio-frequency (RF) arbitrary microwave waveform with ultra-wide frequency tunable range based on a dispersion compensated optoelectronic oscillator (OEO) is proposed and experimentally demonstrated. Dispersion compensation scheme and specially designed fiber Bragg grating (FBG)-based Fabry–Perot (F-P) filters are employed in the OEO loop to realize a frequency tunable range of 3.5–45.4 GHz. An optimization process provided by the combination of an erbium-doped fiber amplifier (EDFA) and FBG is employed to improve the signal-to-noise ratio (SNR) of final RF signals. The generation of linear-frequency and phase-coded microwave waveforms, with a tunable carrier frequency ranging from 4 to 45 GHz and tuned chirping bandwidths or code rates, is experimentally demonstrated.

Anle Wang, Jianghai Wo, Jin Zhang, Xiong Luo, Xin Xu, Daoming Zhang, Pengfei Du, Lan Yu. Radio-frequency arbitrary waveform generation based on dispersion compensated tunable optoelectronic oscillator with ultra-wide tunability[J]. Chinese Optics Letters, 2017, 15(10): 100603.

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