首页|High-efficiency and flexible photonic microwave harmonic down-converter based on self-oscillation optical frequency combs

High-efficiency and flexible photonic microwave harmonic down-converter based on self-oscillation optical frequency combs

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Photonic microwave harmonic down-converters[PMHDCs]based on self-oscillation optical frequency combs[OFCs]are interesting because of their broad bandwidth compared with plain optoelectronic oscillators.In this paper,a high-efficiency and flexible PMHDC is proposed and demonstrated.The properties of the OFC,such as the carrier-to-noise ratio[CNR],bandwidth and free spectral range[FSR],and the influence of optical injection,are investigated.The broadband OFC pro-vides a frequency tunable and high-quality local oscillation[L0],which guarantees flexible down-conversion for the radio frequency[RF]signal.The sideband selective amplification[SSA]effect not only improves the conversion efficiency but also promotes single-sideband modulation.The conversion range can reach 100 GHz.The 12-40 GHz RF signal can be down-converted to intermediate frequency[IF]signals with a high conversion efficiency of 14.9 dB.The fixed 40-GHz RF signal is flexibly down-converted to an IF signal with the frequency from 55.4 to 2129.4 MHz.The phase noise of an IF signal at a frequency offset of 10 kHz is the same as that of the input RF signal.The PMHDC shows great performance and will find applications in radio-over-fiber[RoF]networks,electronic warfare receivers,avionics,and wireless communication systems.

frequency down-conversionoptical frequency comboptical injectionoptoelectronic oscillation

张鑫、蒲涛、朱华涛、张云山、吴庚泽、李晋、郑吉林

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College of Information and Communications,National University of Defense Technology,Wuhan 430010,China

College of Communications Engineering,Army Engineering University of PLA,Nanjing 210007,China

College of Electronic and Optical Engineering & College of Flexible Electronics(Future Technology),Nanjing University of Posts and Telecommunications,Nanjing 210023,China

2024

10.3788/COL202422.063901

中国光学快报(英文版)
中国光学学会 中国科学院上海光学精密机械研究所

中国光学快报(英文版)

CSTPCD
影响因子：1.305
ISSN：1671-7694
年,卷(期)：2024.22(6)