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5 November 2020 Experimental analysis of the influence of Fresnel reflection on the phase noise in microwave photonic links
Ruiwen Zhang, Yanyang Zhou, Rui Xu, Xuan Li, Pengfei Zhang, Danqi Feng, Pengfei Wang, Liping He, ChengYuan Liu, Yubing Zhang
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Proceedings Volume 11562, AOPC 2020: Advanced Laser Technology and Application; 115621B (2020) https://doi.org/10.1117/12.2580370
Event: Applied Optics and Photonics China (AOPC 2020), 2020, Beijing, China
Abstract
Microwave photonic technology is a new technology which combines microwave technology and photonic technology. It has great advantages in many aerospace fields such as satellite navigation and space exploration. In the harsh space environment, Fresnel reflection is easy to be produced in the optical connector. In this paper, we build a RF microwave photonic transmission platform to analyse the influences of the optical echo increase and the optical phase change arising from Fresnel reflection of the optical connector on the phase noise. First of all, we present a scheme to simulate the echo of the optical signal caused by the Fresnel reflection. The results show that in our built platform the optical echo caused by the Fresnel reflection can not give rise to phase noise degradation. Secondly, the influence of optical phase change on phase noise by changing the size of air gap is experimentally analysed. As the size rises from 0.3mm to 0.7mm, the phase noise deteriorates to be - 93dBc / Hz at 1kHz.
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Ruiwen Zhang, Yanyang Zhou, Rui Xu, Xuan Li, Pengfei Zhang, Danqi Feng, Pengfei Wang, Liping He, ChengYuan Liu, and Yubing Zhang "Experimental analysis of the influence of Fresnel reflection on the phase noise in microwave photonic links", Proc. SPIE 11562, AOPC 2020: Advanced Laser Technology and Application, 115621B (5 November 2020); https://doi.org/10.1117/12.2580370
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KEYWORDS
Microwave photonics
Optical amplifiers
Interfaces
Connectors
Geometrical optics
Microwave radiation
Optical fibers
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